- BNC-all - ecn.purdue.edu

JOINT ECE and BNC Virtual Faculty Seminar: Speaker - Krishna Jayant - Nov. 12th @ 10:00am via Zoom
by Turner, Jaime J 11 Nov '20

11 Nov '20

ECE and Birck Joint Virtual Seminar Krishna Jayant Assistant Professor of Biomedical Engineering November 12th, 2020 | 10:00am Join Zoom Meeting: https://purdue-edu.zoom.us/j/94730880530 Title: Nanoscale electrical and optical neurotechnologies for mapping the sub-cellular neural code Abstract: Single neuron computations span multiple scales - from synapse to dendrite to the soma. Mapping single neuron input-output electrical transformations as well as decoding their computational rules remains a central question in neuroscience and a key need for a thorough understanding of both microcircuit function as well as behavioral output. In this talk I will present both published and ongoing work in which we exploit multimodal approaches to address key challenges in the field of single neuron computation. In the first part of my talk, I will describe our work on mapping dendritic spine electrical dynamics. Dendritic spines, characterized by a small head (volume~0.01-0.1μm3) and narrow neck (diameter~0.1μm, length~1μm), are the primary site of excitatory synaptic input in the mammalian brain. Synaptic inputs made onto spines first integrate onto dendrites, and subsequently propagate towards the soma and axon initial segment, where they further integrate with other inputs to determine overall action potential output. Elucidating the electrical properties of spines is thus paramount for understanding the first steps along this signal processing chain. I will describe our work using quantum-dot labeled quartz nanopipettes (15-30 nm diameters) under two-photon visualization for targeted intracellular recordings from spines1 and small pre-synaptic terminals. I will show through detailed experiments that (i) spines receive large EPSPs (25-30mV), and (ii) estimated neck resistances are large enough to influence electrical isolation (mean ~420 M?), and filter synaptic input as it invades the dendrite. I will then briefly describe the theoretical implications of these properties2 and describe key advances in amplifier design that can enable previously unattainable experiments on spines4. I will then describe recent results from my lab using two-photon holography to stimulate spines in 3D to unravel dendritic spine co-operativity across dendrites. In the second part of this talk, I will switch gears and describe a new method in which I combine the flexible property of these nanopipettes with microprisms to enable simultaneous two-photon calcium imaging and targeted intracellular electrophysiology from dendrites in vivo during behavior3. Last, I will give a succinct overview of our recent work at Purdue, including two-photon compatible transparent nanoelectrode arrays for mapping dendritic activity from the surface of the awake-behaving brain. I will conclude by presenting a snapshot of key collaborative projects at Purdue that highlight the integration of nanoscience and neuroscience. 1 Jayant, K. et al. Targeted intracellular voltage recordings from dendritic spines using quantum-dot-coated nanopipettes. Nature Nano, (2017). 2 Thibault Lagache, Krishna Jayant & Rafael Yuste,. Electrodiffusion modelling of spine voltage dynamics. J. Comp. Neurosci, 2019 3 Jayant, K. et al. Flexible nanopipettes for motion-insensitive intracellular electrophysiology in vivo. Cell Reports (2019). 4. Shekar, S., Jayant, K., et al, A miniaturized multi-clamp CMOS amplifier for intracellular neural recording, Nature Electronics, 2019 Bio: Krishna Jayant received his B.Tech degree in electrical engineering from the National Institute of Technology (NIT) Trichy, India in 2005, where as part of his bachelor's thesis he worked on bio-inspired optimization techniques. After brief research stints at IISc Bangalore (2005-2006), and the University of Bologna (2006-2007), both in the area of microelectronics, he joined Cornell University, Ithaca NY, where he received his M.S/PhD in electrical engineering in 2014 working with Prof. Edwin C. Kan on Bioelectronics. He then joined Columbia University for postdoctoral research training with Profs. Rafael Yuste, Ken Shepard, and Ozgur Sahin in the field of circuit neuroscience, biophysics, and CMOS integrated neurotechnology. Here, he was awarded the prestigious Kavli Post-Doctoral Fellowship for carrying out work at the intersection of nanoscience and neuroscience. As an Assistant Professor of Biomedical Engineering at Purdue, his laboratory focuses on elucidating the biophysical features involved in neural computation and their behavioral relevance using a combination of nano-electrophysiology, optical microscopy, CMOS integrated systems, and modeling. His research is supported by the NIH Trailblazer Award, the HFSP young investigator grant, and the Ralph E. Powe Junior Faculty Enhancement Award. Upcoming BNC Virtual Faculty Seminars, Fall 2020: Date Faculty Title 9/10/20 Ali Shakouri, Director of Birck Nanotechnology Center Overview of SMART Industry Consortium 9/17/20 Luna Lu, Professor of Civil Engineering - *Note time change* (10am - 11am): Co-Hosted with ECE Nanotechnology for Energy Harvesting and Sensing Applications 9/24/20 Alex Ma, Assistant Professor of Physics and Astronomy Superconducting circuits for quantum simulation and quantum information sciences 10/01/20 Hadiseh Alaeian, Assistant Professor of Electrical and Computer Engineering atom-Nanophotonics at low dimensions 10/08/20 Jianguo Mei, Assistant Professor, Department of Chemistry Semiconducting Polymers: A Journey from Scientific Curiosity to Technology Commercialization 10/15/20 Chen-Lung Hung, Assistant Professor of Physics and Astronomy Engineering atom-nanophotonics hybrid lattices 10/22/20 Chi Hwan Lee, Assistant Professor of Biomedical Engineering and Mechanical Engineering Sticker-Like Flexible Sensors for Wearable Healthcare Applications 10/29/20 Ryan Wagner, Research Assistant Professor, School of Mechanical Engineering Atomic force microscopy as a tool for multiphysics nanoscale characterization 11/5/20 Arnab Banerjee, Assistant Professor of Physics and Astronomy Co-design towards exotic spin-based systems and devices 11/12/20 Krishna Jayant, Professor of BME - *Note time change* (10am - 11am): Co-Hosted with ECE 11/19/20 Xiulin Ruan, Professor, School of Mechanical Engineering First Principles and Machine Leaning Predictions of Thermal and Optical Properties, and the Developments of Radiative Cooling Paints Spring 2021 Schedule: Date Faculty Title 2/4/21 Yi Xie, Assistant Professor, School of Nuclear Engineering Degradation of Structural Materials and Fuels in Nuclear Systems 2/11/21 Letian Dou, Assistant Professor, Davidson School of Chemical Engineering Organic-Perovskite Hybrid Quantum Wells, Heterostructure, and Optoelectronics 2/18/21 Nikhilesh Chawla, Ransburg Professor, School of Materials Engineering 4D Materials Science - Probing Microstructural Evolution Through Time-Resolved Imaging 2/25/21 3/4/21 David Cappelleri, Associate Professor of Mechanical Engineering Microrobotics Research Highlights 3/11/21 Stylianos Chatzidakis, Assistant Professor, School of Nuclear Engineering 3/18/21 Reading Day 3/25/21 Tyler Tallman, Assistant Professor, School of Aeronautics and Astronautics 4/1/21 4/8/21 4/15/21 4/22/21 4/29/21 Dead Week 5/6/21 Finals Week Thanks! Jaime Turner Lead Administrative Assistant to the Director | Birck Nanotechnology Center BRK | 1205 W State Street | West Lafayette, IN 47907 o: 765-494-3509<tel:7654943509> | m: 765-491-3064<tel:7654913064> | jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> [83324AA6]<https://www.purdue.edu/>

1 0

Scott Crooker (LANL) seminar Wednesday (11/11) at 10 a.m.
by David Stewart 10 Nov '20

10 Nov '20

All, PQSEI is hosting a Zoom seminar by Scott Crooker of Los Alamos National Lab Wednesday (11/11) at 10 a.m. The title is "Listening" to spin and magnetization noise, and the abstract is attached. Zoom link here: https://purdue-edu.zoom.us/j/94639398998 I hope you'll be able to join us. Best, David David J. Stewart, Ph.D. Managing Director Purdue Quantum Science and Engineering Institute (PQSEI) Birck Nanotechnology Center | 1205 West State Street | Room 1287C | West Lafayette, IN 47907 o: 765-496-3117<tel:7654963117> | davidstewart(a)purdue.edu<mailto:davidstewart@purdue.edu> | www.purdue.edu/dp/quantum<http://www.purdue.edu/dp/quantum> *Follow us! Twitter: @PurdueQuantum<https://twitter.com/PurdueQuantum>, LinkedIn<https://www.linkedin.com/company/pqsei/>, Facebook<https://www.facebook.com/QuantumPurdue> [8A5592F8]<https://www.purdue.edu/>

1 0

BNC E-news: November 9th, 2020
by Turner, Jaime J 09 Nov '20

09 Nov '20

[cid:image006.jpg@01D685C3.FA345960] Responding to COVID-19: Research Operations at Birck https://www.purdue.edu/discoverypark/birck/for-birck-users/covid/index.php Seminars /Workshops / Events nanoHUB is excited to offer another session of our ongoing Hands-on Data Science and Machine Learning Training Series. The series is designed to enhance your skill set with practical tools you can use in your research or teaching. Title: Machine Learning Framework for Impurity Level Prediction in Semiconductors Date/Time: November 11, 2020 / 1 PM - 2 PM EST By: Arun Mannodi-Kanakkithodi, Postdoctoral researcher at Argonne National Laboratory and Incoming Assistant Professor of Materials Engineering at Purdue University Register here (limited seats): https://purdue.webex.com/purdue/onstage/g.php?MTID=e088a6ccfa042d4ac13bdb44… BNC Virtual Faculty Seminar Joint ECE and Birck Seminar November 12th, 2020 | 10:00am Krishna Jayant, Assistant Professor of Biomedical Engineering "Nanoscale electrical and optical neurotechnologies for mapping the sub-cellular neural code"<https://www.purdue.edu/discoverypark/birck/events/index.php?view=3130> NSAC Coffee Hour Special Series -NO.6<https://www.purdue.edu/discoverypark/birck/events/index.php?view=3131> An Interview with Prof. Peide Ye (Richard J. and Mary Jo Schwartz Professor of Electrical and Computer Engineering) When: Friday 2:00 pm (Nov-13, 2020) Where: MS Teams Live on https://tinyurl.com/coffee-hour-prof-ye<https://tinyurl.com/coffee-hour-bill-rowe> Previous recorded sessions: Youtube<https://www.youtube.com/playlist?list=PLUx5VBg665CQRu_hIBPeC472ZuP4Fbkyk> Spotify<https://open.spotify.com/show/1lPwxoBKVZLAUqpF9ougCW?si=4W41LwRmTB-wLs7aynT…> Podcast<https://anchor.fm/nsac-purdue/episodes/Joerg-Appenzeller-diligence--persist…> Birck Events<https://www.purdue.edu/discoverypark/birck/events/index.php> and Birck News<https://www.purdue.edu/discoverypark/birck/news/index.php> Birck Rule Change Dear Birck User Community, We've been re-evaluating the COVID restrictions that have been in place since we reopened our facility. We now have had several weeks of learning in our new environment and we are modifying two restrictions: 1. The 6:00 am - 10:00 am "staff-only" cleanroom restriction is being eliminated. Therefore effective immediately any authorized cleanroom user may enter the cleanroom at any time. Please continue to be mindful of the buddy requirement when working late at night or early in the morning..... namely do not do any acid processing without at least one other user in the cleanroom with you. 2. The gowning room capacity restriction of 3 people is being changed to 5 people. There can now be 5 individuals in the cleanroom gowning room at any given time. We hope this helps promote more efficient use of the gowning room while still maintaining the 6' social distancing requirement. While these changes are effective immediately we will change any signage in the next couple of days. Thanks for your cooperation and we will continue to evaluate our protocols as we move forward. The Engineering Staff Open Positions Research Internship Opportunity: Research internship is available with hourly payment of 15 $ per hour. The number of hours and timings are flexible. The research intern will conduct outdoor measurements and record data for machine learning applications. Juniors and senior undergrads with varied backgrounds in engineering and science are welcome to apply. The prospective candidate should have excellent academic credentials and an attention to detail to succeed in the project. Previous experience in engineering labs is necessary. The project is being conducted in the lab of Prof. Zubin Jacob (see www.electrodynamics.org<http://www.electrodynamics.org/>). Please contact Shree Hari Sureshbabu with your CV by Nov 30th 2020 (sureshbs(a)purdue.edu<mailto:sureshbs@purdue.edu>) Draper Labs: Looking to hire ASAP, high experience in fab. Applicants can be PostDocs, fresh PhDs or MS with experience. https://careers-draper.icims.com/jobs/4922/principal-mems--photonics-microf… EPFL's School of Engineering: currently has an open (junior faculty) position in Integrated Transducers, https://www.epfl.ch/about/working/faculty-position-in-integrated-transducer… and we are reaching out to the community to make colleagues aware of the open position and attract candidates. We aim in particular to increase the number of female faculty. Please spread the information in your network Birck Safety Protocols It is very gratifying to see our research community back 'in business' doing leading-edge research in our center after the long pause we all experienced this Spring. But at the same time we want to remind our entire user group of the critical importance of following the COVID safety protocols while using our facilities. If an outbreak of COVID exposures should happen at Birck there is a real possibility that we may need to close the facility again. So please read and support the following..... .....Some of our approved users are holding the doors open for others to enter the building. This may very well be a gesture of politeness to assist another, but it also can be perceived that non-approved people are entering our building with the assistance of one of our approved users. Additionally it does not allow us to have an accurate accounting of who is entering our building by evaluating card-swipe data. So everyone should swipe into Birck and not be let in by someone holding the door open. .....Face masks are required while in Birck. Approved users have been, and continue to be, strongly encouraged to bring their own face mask for their personal use while in the facility. At the entrances we have supplied quantities of disposable face masks for emergency use, but our supplies of these disposable masks are being depleted at the high rate of 300 - 400 masks per week. This rate of use seems exceptionally high when personal masks are strongly recommended. Please only take one mask from the supply, and only when you've forgotten your personal mask. ....Social distancing continues to be a challenge. This is a difficult habit to develop and groups of people have been seen clustered around a tool, or having a hallway conversation, and not adhering to the 6' spacing rule. Please continue to maintain at least 6' spacing between yourself and the nearest other person. Please stay vigilant in promoting and supporting these safety protocols. If we each do our part we will continue to stay open and conduct state-of-the-art research in our great facility. Follow us on Facebook and Twitter [Facebook icon]<https://www.facebook.com/nano.purdue.edu/> [Twitter icon] <https://twitter.com/BNCPurdue> ***If you have any news items (published papers, research news, awards, honors) please send to jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> so they may be included on Birck's website, Facebook and Twitter pages*** Jaime Turner Lead Administrative Assistant to the Director | Birck Nanotechnology Center BRK | 1205 W State Street | West Lafayette, IN 47907 o: 765-494-3509<tel:7654943509> | m: 765-491-3064<tel:7654913064> | jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> [83324AA6]<https://www.purdue.edu/>

1 0

nanoHUB free hands-on workshop on machine learning: Dr. Arun Mannodi-Kanakkithodi, Argonne.
by Turner, Jaime J 03 Nov '20

03 Nov '20

Dear Colleagues, nanoHUB is excited to offer another session of our ongoing Hands-on Data Science and Machine Learning Training Series. The series is designed to enhance your skill set with practical tools you can use in your research or teaching. Title: Machine Learning Framework for Impurity Level Prediction in Semiconductors Date/Time: November 11, 2020 / 1 PM – 2 PM EST By: Arun Mannodi-Kanakkithodi, Postdoctoral researcher at Argonne National Laboratory and Incoming Assistant Professor of Materials Engineering at Purdue University Register here (limited seats): https://purdue.webex.com/purdue/onstage/g.php?MTID=e088a6ccfa042d4ac13bdb44… Abstract: In this work, we perform screening of functional atomic impurities in Cd-chalcogenide semiconductors using high-throughput computations and machine learning. High-performance computing resources located at Argonne National Lab (Carbon at CNM and LCRC) and Berkeley Lab (NERSC) were utilized to generate large databases of impurity properties from first principles-based density functional theory (DFT) computations. This dataset was combined with material descriptors—ranging from coordination environments to tabulated elemental properties to cheaper DFT data—to train state-of-the-art regression models. LASSO, random forest, and kernel ridge regression techniques were used and the predictive models were optimized with respect to the type and quantity of training data, optimal hyperparameter sets, and cross-validation errors. The best models thus achieved were deployed to make predictions for the combinatorial chemical space of all possible impurity atoms in Cd-chalogenide compounds, following which screening was performed on the basis of their relative energetics, leading to a shortlist of impurities for every compound which can affect a desirable or disastrous change in the optical and electronic properties of the semiconductor. The data and models developed in this work have major consequences for semiconductor applications ranging from solar cells to infrared sensors to quantum information sciences. Publication: https://www.nature.com/articles/s41524-020-0296-7. Bio: Arun Mannodi-Kanakkithodi is a computational materials scientist working as a postdoctoral researcher at the Center for Nanoscale Materials at Argonne. His research interests include AI-driven design of novel materials for energy applications, optimizing opto-electronic properties of novel semiconductor compositions, generating and mining computational materials databases, materials informatics, and data-driven materials discovery. Arun will begin a new position as assistant professor in Materials Engineering at Purdue University in December 2020. Additional information. Our series is aimed at active researchers and educators and little prior coding experience is required. In addition, all exercises will use nanoHUB cloud computing resources, no need to download or install any software. All you need is an internet connection and a browser. After the training sessions, you will be able to continue using nanoHUB for your research or class. You can find additional information and sign up links at https://nanohub.org/groups/ml/handsontraining. Here you can also find recorded material of our previous workshops and refresh your knowledge of Jupyter notebooks, querying databases, and training basic machine learning models such as neural networks for classification and regression. We hope that you can attend this workshop and walk away with enough information and practical skills to kickstart your foray into deep learning methods for your research or classroom use. Best regards, Prof. Ale Strachan, Materials Engineering, Purdue University Deputy Director, nanoHUB. http://nanohub.org/ -- Alejandro Strachan Professor of Materials Engineering, Purdue University Network for Computational Nanotechnology - nanohub.org<http://nanohub.org> Center for Predictive Materials and Devices (c-PRIMED)

1 0

Birck Rule Changes
by Reger, Ronald K 03 Nov '20

03 Nov '20

Dear Birck User Community, We've been re-evaluating the COVID restrictions that have been in place since we reopened our facility. We now have had several weeks of learning in our new environment and we are modifying two restrictions: 1. The 6:00 am - 10:00 am "staff-only" cleanroom restriction is being eliminated. Therefore effective immediately any authorized cleanroom user may enter the cleanroom at any time. Please continue to be mindful of the buddy requirement when working late at night or early in the morning..... namely do not do any acid processing without at least one other user in the cleanroom with you. 2. The gowning room capacity restriction of 3 people is being changed to 5 people. There can now be 5 individuals in the cleanroom gowning room at any given time. We hope this helps promote more efficient use of the gowning room while still maintaining the 6' social distancing requirement. While these changes are effective immediately we will change any signage in the next couple of days. Thanks for your cooperation and we will continue to evaluate our protocols as we move forward. The Engineering Staff

1 0

Seminars This Week
by Turner, Jaime J 03 Nov '20

03 Nov '20

All, There are several seminars this week which may be of interest to many of you. Click the hyperlinks for more information about each: Tuesday (11/3) at 3:30: Virtual Math Colloquium, presented by Zhenghan Wang<https://purdue0-my.sharepoint.com/:b:/g/personal/stewartd_purdue_edu/EfrMc4…> of UC Santa Barbara titled "Quantum mathematics: counting, computing, and reasoning with quantum numbers"; Zoom Link<https://us02web.zoom.us/j/86731705103?pwd=OGlMakRMeURSNVd5eDBwM3BwcnBxQT09#…> (Meeting ID: 867 3170 5103 Passcode: e2Fidw) Wednesday (11/4) at 10:00: PQSEI Seminar given by Prof. Peter Love<https://purdue0-my.sharepoint.com/:b:/g/personal/stewartd_purdue_edu/EWfBxj…> of Tufts University titled "Simulating Field Theory in the Light-Front Formulation"; Zoom Link<https://purdue-edu.zoom.us/j/94639398998#success> Thursday (11/5) at 10:00: ECE Seminar presented by Zheshen Zhang<https://purdue0-my.sharepoint.com/:w:/g/personal/stewartd_purdue_edu/ESpCFr…> from the University of Arizona titled "Entangled Sensor Networks Empowered by Machine Learning"; Zoom Link<https://purdue-edu.zoom.us/j/94391524658> Thursday (11/5) at 10:00: Prof. Boltasseva will be giving a seminar in the Midinfrared Discussions Webinar Series<https://zoom.us/webinar/register/WN_RMLXbZd2T-SQLN4Zfroucw>. Register via link. Thanks, David David J. Stewart, Ph.D. Managing Director Purdue Quantum Science and Engineering Institute (PQSEI) Birck Nanotechnology Center | 1205 West State Street | Room 1287C | West Lafayette, IN 47907 o: 765-496-3117<tel:7654963117> | davidstewart(a)purdue.edu<mailto:davidstewart@purdue.edu> | www.purdue.edu/dp/quantum<http://www.purdue.edu/dp/quantum> *Follow us! Twitter: @PurdueQuantum<https://twitter.com/PurdueQuantum>, LinkedIn<https://www.linkedin.com/company/pqsei/>, Facebook<https://www.facebook.com/QuantumPurdue> [8A5592F8]<https://www.purdue.edu/>

1 0

BNC E-news: November 2nd, 2020
by Turner, Jaime J 02 Nov '20

02 Nov '20

[cid:image006.jpg@01D685C3.FA345960] Responding to COVID-19: Research Operations at Birck https://www.purdue.edu/discoverypark/birck/for-birck-users/covid/index.php Seminars /Workshops / Events BNC Virtual Faculty Seminar November 5th, 2020 | 12:00 noon Arnab Banerjee, Assistant Professor of Physics and Astronomy "Co-design towards exotic spin-based systems and devices"<https://www.purdue.edu/discoverypark/birck/events/index.php?view=3116> Join Zoom Meeting: https://purdue-edu.zoom.us/j/93857631004 NSAC Fab Forum Special Series - NO.1<https://www.purdue.edu/discoverypark/birck/events/index.php?view=3115> A Demonstration of Two-Tint TDTR When: Friday 2:00 pm (Nov-6, 2020) Where: MS Teams Live on https://tinyurl.com/fab-forum-tdtr<https://teams.microsoft.com/l/meetup-join/19%3ameeting_OWI3NzZlODEtMzFkOC00…> Birck Events<https://www.purdue.edu/discoverypark/birck/events/index.php> and Birck News<https://www.purdue.edu/discoverypark/birck/news/index.php> Update on Evaporators We have released the Lesker back to research with the new safety bar installed. If you want to use the Lesker please see Mike Bayless or Dave Lubelski for a quick demonstration of the safety mechanism. Additionally, new hoists have been designed in conjunction with a hoist supplier and the first one has been ordered. It is due to arrive next week and is slated to be installed on the CHA1 evaporator. After this hoist is received and installed the CHA1 can be returned to research after a short training of the new hoist system. We will be ordering the second hoist for the CHA2 shortly after the CHA1 is received, and it should be shipped to us just prior to Thanksgiving break. The Leybold evaporator's power supply was repaired at the factory and shipped back to us. During shipping the large tetrode tube had shaken loose, but we're installing it to see if any shipping damage occurred. Also, our skilled tradesman is installing a safety bar on this system to be used when it is returned to research, and we will know later this week if the power supply is good. Thanks for your patience! Launch of New Equipment Support Ticketing System Dear Birck User Community, As many of you know we have been running a pilot evaluation of our trouble-reporting 'ticketing' system that Rich Hosler and the engineering staff developed in June. We had good results with this pilot study, taking in approximately 40 tickets and responding to them in a timely manner. We now want to officially launch this system for Birck-wide use, and to that end we will formally begin its use throughout Birck immediately after next week's PM shutdown. Therefore, on Monday, October 26 we are directing all equipment related issues to be reported using our ticketing system. During the ramp-up phase the staff members will continue to remind users to not use email, but rather the ticketing system. For the first month any email inquiries/reports will also be input into the ticket system, and after a month's time we will no longer accept email notices (after November 23). We realize this is a culture change for our facility and we will continue to remind users about the ticketing system as we go. Why are we doing this? We are always interested in improving our operations, and we know this will address our ability to know about issues quickly and address them responsively. We have benchmarked other facilities who use ticketing processes to their great benefit. Additionally our own ECN uses a similar ticketing system to address computer and network issues all across Purdue. Below is a message from Rich regarding the use of the ticketing system, and a link to the system. We look forward to your use of the system which will improve our engineering operations. Your comments and suggestions are certainly welcome. Ron Message from Rich Hosler: Hello, The goal of this system is to reduce downtime and improve communication regarding tool and equipment availability. In general we envision this tool to be the first point of contact for any support requests regarding equipment or services inside BNC. I would ask that if you have any issues or questions regarding equipment in the Scifres Nanofabrication facility or with equipment residing in the BNC, please use the webpage below to submit a ticket. You do not have to create an account to put a ticket in, but it will help you track your tickets better if you do. https://bircknano.freshdesk.com/support/home All iLabs-tracked equipment should be represented in the list by the iLabs name. If you see a piece of equipment missing either put in a ticket for 'other' or email hosler0(a)purdue.edu<mailto:hosler0@purdue.edu> and I'll get the issue resolved. If you're unsure of which equipment to report under you can either select the general core that best represents the system or 'unknown/other'. Under the 'group' tab please select 'research engineering' if this is regarding equipment operation, otherwise there are categories for administration, iLabs billing, and building/installation issues. Any other questions you may have can be reported to hosler0(a)purdue.edu<mailto:hosler0@purdue.edu> and I'll do my best to get you an answer quickly. Thanks for your assistance, Rich Hosler Open Positions Research Internship Opportunity: Research internship is available with hourly payment of 15 $ per hour. The number of hours and timings are flexible. The research intern will conduct outdoor measurements and record data for machine learning applications. Juniors and senior undergrads with varied backgrounds in engineering and science are welcome to apply. The prospective candidate should have excellent academic credentials and an attention to detail to succeed in the project. Previous experience in engineering labs is necessary. The project is being conducted in the lab of Prof. Zubin Jacob (see www.electrodynamics.org<http://www.electrodynamics.org/>). Please contact Shree Hari Sureshbabu with your CV by Nov 30th 2020 (sureshbs(a)purdue.edu<mailto:sureshbs@purdue.edu>) Draper Labs: Looking to hire ASAP, high experience in fab. Applicants can be PostDocs, fresh PhDs or MS with experience. https://careers-draper.icims.com/jobs/4922/principal-mems--photonics-microf… Birck Safety Protocols It is very gratifying to see our research community back 'in business' doing leading-edge research in our center after the long pause we all experienced this Spring. But at the same time we want to remind our entire user group of the critical importance of following the COVID safety protocols while using our facilities. If an outbreak of COVID exposures should happen at Birck there is a real possibility that we may need to close the facility again. So please read and support the following..... .....Some of our approved users are holding the doors open for others to enter the building. This may very well be a gesture of politeness to assist another, but it also can be perceived that non-approved people are entering our building with the assistance of one of our approved users. Additionally it does not allow us to have an accurate accounting of who is entering our building by evaluating card-swipe data. So everyone should swipe into Birck and not be let in by someone holding the door open. .....Face masks are required while in Birck. Approved users have been, and continue to be, strongly encouraged to bring their own face mask for their personal use while in the facility. At the entrances we have supplied quantities of disposable face masks for emergency use, but our supplies of these disposable masks are being depleted at the high rate of 300 - 400 masks per week. This rate of use seems exceptionally high when personal masks are strongly recommended. Please only take one mask from the supply, and only when you've forgotten your personal mask. ....Social distancing continues to be a challenge. This is a difficult habit to develop and groups of people have been seen clustered around a tool, or having a hallway conversation, and not adhering to the 6' spacing rule. Please continue to maintain at least 6' spacing between yourself and the nearest other person. Please stay vigilant in promoting and supporting these safety protocols. If we each do our part we will continue to stay open and conduct state-of-the-art research in our great facility. Follow us on Facebook and Twitter [Facebook icon]<https://www.facebook.com/nano.purdue.edu/> [Twitter icon] <https://twitter.com/BNCPurdue> ***If you have any news items (published papers, research news, awards, honors) please send to jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> so they may be included on Birck's website, Facebook and Twitter pages*** Jaime Turner Lead Administrative Assistant to the Director | Birck Nanotechnology Center BRK | 1205 W State Street | West Lafayette, IN 47907 o: 765-494-3509<tel:7654943509> | m: 765-491-3064<tel:7654913064> | jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> [83324AA6]<https://www.purdue.edu/>

1 0

REMINDER: BNC Virtual Faculty Seminar Series: Speaker - Ryan Wagner - TODAY Oct. 29th @ 12noon via Zoom
by Turner, Jaime J 29 Oct '20

29 Oct '20

Reminder: BNC Virtual Faculty Seminar Series TODAY @ 12:00noon. [cid:image004.jpg@01D685C0.EB336F80] The BNC Virtual Faculty Seminar Series is designed to provide faculty a platform to present an overview of their research and the opportunity for collaborative discussion with other BNC faculty and researchers across six colleges and 15 academic units. Ryan Wagner Research Assistant Professor, School of Mechanical Engineering October 29th, 2020 | 12:00pm Join Zoom: https://purdue-edu.zoom.us/j/93857631004 Title: Atomic force microscopy as a tool for multiphysics nanoscale characterization Abstract: An atomic force microscope (AFM) consists of a sharp cantilever mounted tip interacting with a sample. This microscope is capable of topographic imaging of samples down to atomic resolution. Additionally, the physical interactions between the tip and sample can be leveraged to investigate a variety of multiphysics problems. AFM can measure the nanomechanical elasticity, viscoelasticity, adhesion, and failure of nanoscale structures. It can map conductivity, surface potential, and piezoelectric response with nanoscale resolution. It can probe the distribution of chemical species on a surface. In this talk, I will highlight my past research efforts that have touched on characterizing these different physical properties with AFM. This includes studying the nanomechanical properties of cellulose with force-displacement curves, measuring the ferroelectric response of hafnium oxide thin films with piezoresponse force microscopy, and mapping the distribution of active shampoo ingredients on hair with atomic force microscopy mass spectrometry. These research efforts have focused on advancing AFM's capabilities in performing these diverse types of measurements on very different samples. [cid:image002.jpg@01D6AC4A.D2CA29B0] Figure 1: Examples of different AFM multiphysics measurements. a) Elasticity and failure of a cellulose nanocrystal 1. b) Ferroelectric polarization of a hafnium oxide thin film 2. Chemical map of Bis- aminopropyl dimethicone (active shampoo ingredient) on a hair sample 3. Bio: Ryan Wagner is a Research Assistant Professor in the School of Mechanical engineering at Purdue University. He received his PhD from Purdue in 2014 and afterward took postdoctoral appointments at the National Institute of Standards and Technology and Asylum Research, an AFM instrument manufacturing company. His research interests include nanotechnology, microscopy, interferometry, spectrometry, metrology, vibrations, and dynamics. Upcoming BNC Virtual Faculty Seminars, Fall 2020: Date Faculty Title 9/10/20 Ali Shakouri, Director of Birck Nanotechnology Center Overview of SMART Industry Consortium 9/17/20 Luna Lu, Professor of Civil Engineering - *Note time change* (10am - 11am): Co-Hosted with ECE Nanotechnology for Energy Harvesting and Sensing Applications 9/24/20 Alex Ma, Assistant Professor of Physics and Astronomy Superconducting circuits for quantum simulation and quantum information sciences 10/01/20 Hadiseh Alaeian, Assistant Professor of Electrical and Computer Engineering atom-Nanophotonics at low dimensions 10/08/20 Jianguo Mei, Assistant Professor, Department of Chemistry Semiconducting Polymers: A Journey from Scientific Curiosity to Technology Commercialization 10/15/20 Chen-Lung Hung, Assistant Professor of Physics and Astronomy Engineering atom-nanophotonics hybrid lattices 10/22/20 Chi Hwan Lee, Assistant Professor of Biomedical Engineering and Mechanical Engineering Sticker-Like Flexible Sensors for Wearable Healthcare Applications 10/29/20 Ryan Wagner, Research Assistant Professor, School of Mechanical Engineering Atomic force microscopy as a tool for multiphysics nanoscale characterization 11/5/20 Arnab Banerjee, Assistant Professor of Physics and Astronomy Co-design towards exotic spin-based systems and devices 11/12/20 Krishna Jayant, Professor of BME - *Note time change* (10am - 11am): Co-Hosted with ECE 11/19/20 Xiulin Ruan, Professor, School of Mechanical Engineering First Principles and Machine Leaning Predictions of Thermal and Optical Properties, and the Developments of Radiative Cooling Paints Spring 2021 Schedule: Date Faculty Title 2/4/21 Yi Xie, Assistant Professor, School of Nuclear Engineering Degradation of Structural Materials and Fuels in Nuclear Systems 2/11/21 Letian Dou, Assistant Professor, Davidson School of Chemical Engineering Organic-Perovskite Hybrid Quantum Wells, Heterostructure, and Optoelectronics 2/18/21 Nikhilesh Chawla, Ransburg Professor, School of Materials Engineering 2/25/21 3/4/21 David Cappelleri, Associate Professor of Mechanical Engineering Microrobotics Research Highlights 3/11/21 Stylianos Chatzidakis, Assistant Professor, School of Nuclear Engineering 3/18/21 Reading Day 3/25/21 Tyler Tallman, Assistant Professor, School of Aeronautics and Astronautics 4/1/21 4/8/21 4/15/21 4/22/21 4/29/21 Dead Week 5/6/21 Finals Week Thanks! Jaime Turner Lead Administrative Assistant to the Director | Birck Nanotechnology Center BRK | 1205 W State Street | West Lafayette, IN 47907 o: 765-494-3509<tel:7654943509> | m: 765-491-3064<tel:7654913064> | jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> [83324AA6]<https://www.purdue.edu/>

1 0

BNC Virtual Faculty Seminar Series: Speaker - Ryan Wagner - Oct. 29th @ 12noon via Zoom
by Turner, Jaime J 27 Oct '20

27 Oct '20

[cid:image004.jpg@01D685C0.EB336F80] The BNC Virtual Faculty Seminar Series is designed to provide faculty a platform to present an overview of their research and the opportunity for collaborative discussion with other BNC faculty and researchers across six colleges and 15 academic units. Ryan Wagner Research Assistant Professor, School of Mechanical Engineering October 29th, 2020 | 12:00pm Join Zoom: https://purdue-edu.zoom.us/j/93857631004 Title: Atomic force microscopy as a tool for multiphysics nanoscale characterization Abstract: An atomic force microscope (AFM) consists of a sharp cantilever mounted tip interacting with a sample. This microscope is capable of topographic imaging of samples down to atomic resolution. Additionally, the physical interactions between the tip and sample can be leveraged to investigate a variety of multiphysics problems. AFM can measure the nanomechanical elasticity, viscoelasticity, adhesion, and failure of nanoscale structures. It can map conductivity, surface potential, and piezoelectric response with nanoscale resolution. It can probe the distribution of chemical species on a surface. In this talk, I will highlight my past research efforts that have touched on characterizing these different physical properties with AFM. This includes studying the nanomechanical properties of cellulose with force-displacement curves, measuring the ferroelectric response of hafnium oxide thin films with piezoresponse force microscopy, and mapping the distribution of active shampoo ingredients on hair with atomic force microscopy mass spectrometry. These research efforts have focused on advancing AFM's capabilities in performing these diverse types of measurements on very different samples. [cid:image002.jpg@01D6AC4A.D2CA29B0] Figure 1: Examples of different AFM multiphysics measurements. a) Elasticity and failure of a cellulose nanocrystal 1. b) Ferroelectric polarization of a hafnium oxide thin film 2. Chemical map of Bis- aminopropyl dimethicone (active shampoo ingredient) on a hair sample 3. Bio: Ryan Wagner is a Research Assistant Professor in the School of Mechanical engineering at Purdue University. He received his PhD from Purdue in 2014 and afterward took postdoctoral appointments at the National Institute of Standards and Technology and Asylum Research, an AFM instrument manufacturing company. His research interests include nanotechnology, microscopy, interferometry, spectrometry, metrology, vibrations, and dynamics. Upcoming BNC Virtual Faculty Seminars, Fall 2020: Date Faculty Title 9/10/20 Ali Shakouri, Director of Birck Nanotechnology Center Overview of SMART Industry Consortium 9/17/20 Luna Lu, Professor of Civil Engineering - *Note time change* (10am - 11am): Co-Hosted with ECE Nanotechnology for Energy Harvesting and Sensing Applications 9/24/20 Alex Ma, Assistant Professor of Physics and Astronomy Superconducting circuits for quantum simulation and quantum information sciences 10/01/20 Hadiseh Alaeian, Assistant Professor of Electrical and Computer Engineering atom-Nanophotonics at low dimensions 10/08/20 Jianguo Mei, Assistant Professor, Department of Chemistry Semiconducting Polymers: A Journey from Scientific Curiosity to Technology Commercialization 10/15/20 Chen-Lung Hung, Assistant Professor of Physics and Astronomy Engineering atom-nanophotonics hybrid lattices 10/22/20 Chi Hwan Lee, Assistant Professor of Biomedical Engineering and Mechanical Engineering Sticker-Like Flexible Sensors for Wearable Healthcare Applications 10/29/20 Ryan Wagner, Research Assistant Professor, School of Mechanical Engineering Atomic force microscopy as a tool for multiphysics nanoscale characterization 11/5/20 Arnab Banerjee, Assistant Professor of Physics and Astronomy Co-design towards exotic spin-based systems and devices 11/12/20 Krishna Jayant, Professor of BME - *Note time change* (10am - 11am): Co-Hosted with ECE 11/19/20 Xiulin Ruan, Professor, School of Mechanical Engineering First Principles and Machine Leaning Predictions of Thermal and Optical Properties, and the Developments of Radiative Cooling Paints Spring 2021 Schedule: Date Faculty Title 2/4/21 Yi Xie, Assistant Professor, School of Nuclear Engineering Degradation of Structural Materials and Fuels in Nuclear Systems 2/11/21 Letian Dou, Assistant Professor, Davidson School of Chemical Engineering Organic-Perovskite Hybrid Quantum Wells, Heterostructure, and Optoelectronics 2/18/21 Nikhilesh Chawla, Ransburg Professor, School of Materials Engineering 2/25/21 3/4/21 David Cappelleri, Associate Professor of Mechanical Engineering Microrobotics Research Highlights 3/11/21 Stylianos Chatzidakis, Assistant Professor, School of Nuclear Engineering 3/18/21 Reading Day 3/25/21 Tyler Tallman, Assistant Professor, School of Aeronautics and Astronautics 4/1/21 4/8/21 4/15/21 4/22/21 4/29/21 Dead Week 5/6/21 Finals Week Thanks! Jaime Turner Lead Administrative Assistant to the Director | Birck Nanotechnology Center BRK | 1205 W State Street | West Lafayette, IN 47907 o: 765-494-3509<tel:7654943509> | m: 765-491-3064<tel:7654913064> | jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> [83324AA6]<https://www.purdue.edu/>

1 0

BNC E-news: October 26th, 2020
by Turner, Jaime J 26 Oct '20

26 Oct '20

[cid:image006.jpg@01D685C3.FA345960] Responding to COVID-19: Research Operations at Birck https://www.purdue.edu/discoverypark/birck/for-birck-users/covid/index.php Seminars /Workshops / Events BNC Virtual Faculty Seminar October 29th, 2020 | 12:00 noon Ryan Wagner, Research Assistant Professor, School of Mechanical Engineering "Atomic force microscopy as a tool for multiphysics nanoscale characterization"<https://www.purdue.edu/discoverypark/birck/events/index.php?view=3100> Join Zoom Meeting: https://purdue-edu.zoom.us/j/93857631004 NSAC Coffee Hour Special Series -NO.5<https://www.purdue.edu/discoverypark/birck/events/index.php?view=3101> An Interview with Bill Rowe (Research Engineer in BNC, Electron Beam Lithography, Optical Microscopy ) When: Friday 2:00 pm (Oct-30, 2020) Where: MS Teams Live on https://tinyurl.com/coffee-hour-bill-rowe Previous recorded sessions: Youtube<https://www.youtube.com/playlist?list=PLUx5VBg665CQRu_hIBPeC472ZuP4Fbkyk> Spotify<https://open.spotify.com/show/1lPwxoBKVZLAUqpF9ougCW?si=4W41LwRmTB-wLs7aynT…> Podcast<https://anchor.fm/nsac-purdue/episodes/Joerg-Appenzeller-diligence--persist…> Birck Events<https://www.purdue.edu/discoverypark/birck/events/index.php> and Birck News<https://www.purdue.edu/discoverypark/birck/news/index.php> Launch of New Equipment Support Ticketing System Dear Birck User Community, As many of you know we have been running a pilot evaluation of our trouble-reporting 'ticketing' system that Rich Hosler and the engineering staff developed in June. We had good results with this pilot study, taking in approximately 40 tickets and responding to them in a timely manner. We now want to officially launch this system for Birck-wide use, and to that end we will formally begin its use throughout Birck immediately after next week's PM shutdown. Therefore, on Monday, October 26 we are directing all equipment related issues to be reported using our ticketing system. During the ramp-up phase the staff members will continue to remind users to not use email, but rather the ticketing system. For the first month any email inquiries/reports will also be input into the ticket system, and after a month's time we will no longer accept email notices (after November 23). We realize this is a culture change for our facility and we will continue to remind users about the ticketing system as we go. Why are we doing this? We are always interested in improving our operations, and we know this will address our ability to know about issues quickly and address them responsively. We have benchmarked other facilities who use ticketing processes to their great benefit. Additionally our own ECN uses a similar ticketing system to address computer and network issues all across Purdue. Below is a message from Rich regarding the use of the ticketing system, and a link to the system. We look forward to your use of the system which will improve our engineering operations. Your comments and suggestions are certainly welcome. Ron Message from Rich Hosler: Hello, The goal of this system is to reduce downtime and improve communication regarding tool and equipment availability. In general we envision this tool to be the first point of contact for any support requests regarding equipment or services inside BNC. I would ask that if you have any issues or questions regarding equipment in the Scifres Nanofabrication facility or with equipment residing in the BNC, please use the webpage below to submit a ticket. You do not have to create an account to put a ticket in, but it will help you track your tickets better if you do. https://bircknano.freshdesk.com/support/home All iLabs-tracked equipment should be represented in the list by the iLabs name. If you see a piece of equipment missing either put in a ticket for 'other' or email hosler0(a)purdue.edu<mailto:hosler0@purdue.edu> and I'll get the issue resolved. If you're unsure of which equipment to report under you can either select the general core that best represents the system or 'unknown/other'. Under the 'group' tab please select 'research engineering' if this is regarding equipment operation, otherwise there are categories for administration, iLabs billing, and building/installation issues. Any other questions you may have can be reported to hosler0(a)purdue.edu<mailto:hosler0@purdue.edu> and I'll do my best to get you an answer quickly. Thanks for your assistance, Rich Hosler Reminder: BRK 2001 Max Occupancy - 10 people As a reminder, the maximum occupancy for BRK 2001 is 10 people total. Make sure you adhere to this guideline so we keep Birck aligned with the university's social distancing protocols outlined in the Protect Purdue Guidelines. Attached is the BRK 2001 SOP for reference. Please let Sunil Bhave (bhave(a)purdue.edu<mailto:bhave@purdue.edu>), Ron Reger (rreger(a)purdue.edu<mailto:rreger@purdue.edu>) or myself know if you have any questions or concerns. REM Cardboard Boxes Dear Birck Bio Lab Users- The Radiological & Environmental Management group at Purdue (REM) provides boxes to Birck that are used for disposing biohazard waste. These boxes are removed by REM when they're filled with autoclaved waste from our bio labs. It has come to our attention that someone has taken some of these boxes, presumably for personal use. Additionally a pack of the boxes was moved away from the autoclave to across the galley, making it inconvenient to fill the boxes after autoclave. Please do not take or relocate these REM hazardous waste boxes. They have a critical function in removing biohazardous waste for all the biolabs within Birck. Your cooperation is greatly appreciated. Yunfeng Bai Open Positions Research Internship Opportunity: Research internship is available with hourly payment of 15 $ per hour. The number of hours and timings are flexible. The research intern will conduct outdoor measurements and record data for machine learning applications. Juniors and senior undergrads with varied backgrounds in engineering and science are welcome to apply. The prospective candidate should have excellent academic credentials and an attention to detail to succeed in the project. Previous experience in engineering labs is necessary. The project is being conducted in the lab of Prof. Zubin Jacob (see www.electrodynamics.org<http://www.electrodynamics.org/>). Please contact Shree Hari Sureshbabu with your CV by Nov 30th 2020 (sureshbs(a)purdue.edu<mailto:sureshbs@purdue.edu>) Draper Labs: Looking to hire ASAP, high experience in fab. Applicants can be PostDocs, fresh PhDs or MS with experience. https://careers-draper.icims.com/jobs/4922/principal-mems--photonics-microf… Birck Safety Protocols It is very gratifying to see our research community back 'in business' doing leading-edge research in our center after the long pause we all experienced this Spring. But at the same time we want to remind our entire user group of the critical importance of following the COVID safety protocols while using our facilities. If an outbreak of COVID exposures should happen at Birck there is a real possibility that we may need to close the facility again. So please read and support the following..... .....Some of our approved users are holding the doors open for others to enter the building. This may very well be a gesture of politeness to assist another, but it also can be perceived that non-approved people are entering our building with the assistance of one of our approved users. Additionally it does not allow us to have an accurate accounting of who is entering our building by evaluating card-swipe data. So everyone should swipe into Birck and not be let in by someone holding the door open. .....Face masks are required while in Birck. Approved users have been, and continue to be, strongly encouraged to bring their own face mask for their personal use while in the facility. At the entrances we have supplied quantities of disposable face masks for emergency use, but our supplies of these disposable masks are being depleted at the high rate of 300 - 400 masks per week. This rate of use seems exceptionally high when personal masks are strongly recommended. Please only take one mask from the supply, and only when you've forgotten your personal mask. ....Social distancing continues to be a challenge. This is a difficult habit to develop and groups of people have been seen clustered around a tool, or having a hallway conversation, and not adhering to the 6' spacing rule. Please continue to maintain at least 6' spacing between yourself and the nearest other person. Please stay vigilant in promoting and supporting these safety protocols. If we each do our part we will continue to stay open and conduct state-of-the-art research in our great facility. REMINDER: Influenza Vaccination Required for Faculty, Staff and Students Faculty, staff and students are required to obtain their influenza vaccine by Oct. 31. Purdue is holding flu shot events, and several on-campus locations also are offering flu shots. Seasonal flu shots are provided at no charge to all benefits-eligible Purdue faculty and staff as well as spouses and dependents covered on a Purdue medical plan. Click HERE<https://www.purdue.edu/hr/COVID-19/flu-info/index.php> for more details of 2020 PU West Lafayette Campus Flu Shot Events Follow us on Facebook and Twitter [Facebook icon]<https://www.facebook.com/nano.purdue.edu/> [Twitter icon] <https://twitter.com/BNCPurdue> ***If you have any news items (published papers, research news, awards, honors) please send to jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> so they may be included on Birck's website, Facebook and Twitter pages*** Jaime Turner Lead Administrative Assistant to the Director | Birck Nanotechnology Center BRK | 1205 W State Street | West Lafayette, IN 47907 o: 765-494-3509<tel:7654943509> | m: 765-491-3064<tel:7654913064> | jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> [83324AA6]<https://www.purdue.edu/>

1 0