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Graduate Seminar Series - April 28th - Faculty Lectureship - Siddhartha Akkiraju (MANDATORY FOR ALL PHD STUDENTS)
by Waling, Robin M 27 Apr '22

27 Apr '22

Dear All, On behalf of Purdue University's Davidson School of Chemical Engineering, we are glad to announce our upcoming Graduate Seminar Series Lecturer Siddhartha Akkiraju from the Department of Chemical Engineering, Purdue University. He will be presenting at Purdue University on Thursday, April 28, 2022. You will find further detail regarding the lecture at the end of this email. [https://marketing.purdue.edu/Email/TemplateSets/ChE/Templates/Template04/Im…]<https://engineering.purdue.edu/ChE> Graduate Seminar Series [cid:image002.jpg@01D858AA.44EA25B0] Siddhartha Akkiraju Chemical Engineering Purdue University Biography: Siddhartha Akkiraju obtained his B.S. in chemical engineering in 2017 from the University of California, San Diego. While in undergrad he worked in Professor Ratnesh Lal's group on the synthesis and functionalization of Janus nanoparticles. After arriving at Purdue, he joined Professor Bryan Boudouris' group. At Purdue he studies the structure-property relationships of radical polymers to design and develop the next generation of macromolecules for organic electronic devices. ******* ******* Structure-Magnetic Property Relationships in Radical Polymers Thursday, April 28, 2022 3:00 p.m. - 4:15 p.m. FRNY G140 - Reception at 2:30 PM- Abstract: Recently, there has been significant increase in research and development in the field of organic electronics. This is mainly because organic electronic devices can be flexible, lightweight, and processed from solution using low-cost manufacturing techniques. Typically, these devices have utilized conjugated polymers as their active layer components. This approach has been successful, but the use of conjugated polymers comes with limitations. To address these limitations and expand the field of organic electronics, this work studies a novel class of macromolecules, radical polymers. Unlike their conjugated polymer counterparts, radical polymers are comprised of a non-conjugated backbone with stable open-shell groups at their pendant sites. This work quantifies the electron exchange behavior of poly(4-glycidyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl) (PTEO). Due to the high number of pendant open-shell sites, PTEO displays strong paramagnetic behavior. Electron paramagnetic resonance spectroscopy revealed that 4-hydroxy-2,2,6,6-tetramethylpiperidin-N-oxy (TEMPO-OH), 4-glycidyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl (TEO), and PTEO showed rapid electron exchange between the pendant radical groups. When compared to TEMPO-OH and TEO, there was more interaction between the unpaired electrons in PTEO due to their proximity along the polymer chain. This phenomenon was confirmed through magnetic susceptibility, Xm, measurements between 2 K and 300 K. At 2 K, TEMPO-OH and TEO had a Xm of 1.8×10-2 emu mol-1 and 4.6×10-2 emu mol-1. PTEO on the other hand, had a Xm of 1.3×10-1 emu mol-1. Due to its amorphous nature, PTEO had weak antiferromagnetic interactions. However, thin films of PTEO with TEMPO-OH additives showed increased antiferromagnetic interactions between the open-shell sites as well as stronger magnetoresistance effects. In conclusion, radical polymers offer researchers an opportunity to explore an underutilized class of macromolecules. By studying the structure-property relationships, we can gain better insight into radical polymers and develop novel materials for the next generation of organic electronics. ******* ******* Davidson School of Chemical Engineering<https://engineering.purdue.edu/ChE> Purdue University West Lafayette, IN 47907 (765) 494-4050<tel:+17654944050> © 2022 Purdue University<http://www.purdue.edu/purdue/disclaimer.html> All rights reserved An equal access/equal opportunity university<http://www.purdue.edu/purdue/ea_eou_statement.html>

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North Exits
by Valley, Jeffrey L 22 Apr '22

22 Apr '22

BE ADVISED - Due to a water leak outside on the north side of the building, the 2 north exits are posted closed. They are available only in the case of needing them for an emergency situation to leave the building. Thanks. Jeff Valley

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**UPDATED**Graduate Seminar Series Tomorrow - 07 - Faculty Lectureship - Dr. Parul Verma (MANDATORY FOR ALL PHD STUDENTS)
by Waling, Robin M 13 Apr '22

13 Apr '22

Dear All, On behalf of Purdue University's Davidson School of Chemical Engineering, we are glad to announce our upcoming Graduate Seminar Series Lecturer Dr. Parul Verma from the Brain Networks Lab at University of California, San Francisco. She will be visiting Purdue University on Thursday, April 14, 2022. You will find further detail regarding the lecture at the end of this email. [https://marketing.purdue.edu/Email/TemplateSets/ChE/Templates/Template04/Im…]<https://engineering.purdue.edu/ChE> Graduate Seminar Series [cid:image001.jpg@01D84F1A.1ED047E0] Dr. Parul Verma Postdoctoral Scholar Brain Networks Lab University of California, San Francisco Biography: Parul Verma is a postdoctoral scholar at the Brain networks lab at University of California, San Francisco. She holds a PhD from Purdue University and a bachelor's degree from IIT Bombay. She currently works on understanding the relationship between the brain anatomical structure and the diverse functions it can exhibit, as well as how this relationship is affected in neurological conditions such as Alzheimer's disease. More broadly, Parul is interested in understanding the underlying mechanisms of neural activity ranging from a single neuron to the entire brain using mathematical modeling. Parul's research is generously supported by the Alzheimer's Association postdoctoral fellowship. ******* ******* Towards Understanding Pain Sensation Thursday, April 14, 2022 3:00 p.m. - 4:15 p.m. FRNY G140 - Reception at 2:30 PM- Abstract: Pain is a common sensation that arises due to injuries as well as various diseases and disorders. In this talk, we will examine the pathophysiology of pain by investigating the pain-sensing neuron dynamics using an engineering approach. Specifically, we will focus on exploring the following: (i) pain sensation mutations, and (ii) chemotherapy-induced peripheral neuropathy (CIPN) mechanisms. Pain signaling can be characterized in terms of electrical signaling by a pain-sensing neuron. To investigate this electrical signaling, a mathematical modeling approach was employed in this work. The pain-sensing neuron membrane was assumed to be an electrical circuit and the potential across the membrane was modeled in terms of the interplay of sodium and potassium ions flowing across it via voltage-gated sodium and potassium channels, respectively. A bifurcation theory approach was used to explore possible bifurcations to explain the switch from a "no-pain" to a "painful" solution regime. Using this approach, we firstly detected potential mutation points in specific sodium channels that can alter the pain sensation threshold of an individual. This was supported by experimental evidence in existing literature. Secondly, we examined the role of voltage-gated ion channels in inducing CIPN. Bifurcation analysis revealed that alterations in specific sodium and potassium channel conductance can induce CIPN. These findings were supplemented by in vitro recordings of the electrical activity of a sensory neuron culture. In summary, this talk will outline a framework that (i) can be used to find potential voltage-gated ion channels that can be targeted to control the pain sensation threshold in individuals and (ii) can be extended to investigate CIPN mechanisms to find therapeutic cures for it. ******* ******* Davidson School of Chemical Engineering<https://engineering.purdue.edu/ChE> Purdue University West Lafayette, IN 47907 (765) 494-4050<tel:+17654944050> (c) 2022 Purdue University<http://www.purdue.edu/purdue/disclaimer.html> All rights reserved An equal access/equal opportunity university<http://www.purdue.edu/purdue/ea_eou_statement.html>

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Graduate Seminar Series Tomorrow - 07 - Faculty Lectureship - Dr. Parul Verma (MANDATORY FOR ALL PHD STUDENTS)
by Waling, Robin M 13 Apr '22

13 Apr '22

Dear All, On behalf of Purdue University's Davidson School of Chemical Engineering, we are glad to announce our upcoming Graduate Seminar Series Lecturer Dr. Parul Verma from the Brain Networks Lab at University of California, San Francisco. She will be visiting Purdue University on Thursday, April 14, 2022. You will find further detail regarding the lecture at the end of this email. [https://marketing.purdue.edu/Email/TemplateSets/ChE/Templates/Template04/Im…]<https://engineering.purdue.edu/ChE> Graduate Seminar Series [cid:image002.jpg@01D84F17.CDAFEB10] Dr. Parul Verma Postdoctoral Scholar Brain Networks Lab University of California, San Francisco Biography: Parul Verma is a postdoctoral scholar at the Brain networks lab at University of California, San Francisco. She holds a PhD from Purdue University and a bachelor's degree from IIT Bombay. She currently works on understanding the relationship between the brain anatomical structure and the diverse functions it can exhibit, as well as how this relationship is affected in neurological conditions such as Alzheimer's disease. More broadly, Parul is interested in understanding the underlying mechanisms of neural activity ranging from a single neuron to the entire brain using mathematical modeling. Parul's research is generously supported by the Alzheimer's Association postdoctoral fellowship. ******* ******* Towards Understanding Pain Sensation Tuesday, April 14, 2022 3:00 p.m. - 4:15 p.m. FRNY G140 - Reception at 2:30 PM- Abstract: Pain is a common sensation that arises due to injuries as well as various diseases and disorders. In this talk, we will examine the pathophysiology of pain by investigating the pain-sensing neuron dynamics using an engineering approach. Specifically, we will focus on exploring the following: (i) pain sensation mutations, and (ii) chemotherapy-induced peripheral neuropathy (CIPN) mechanisms. Pain signaling can be characterized in terms of electrical signaling by a pain-sensing neuron. To investigate this electrical signaling, a mathematical modeling approach was employed in this work. The pain-sensing neuron membrane was assumed to be an electrical circuit and the potential across the membrane was modeled in terms of the interplay of sodium and potassium ions flowing across it via voltage-gated sodium and potassium channels, respectively. A bifurcation theory approach was used to explore possible bifurcations to explain the switch from a "no-pain" to a "painful" solution regime. Using this approach, we firstly detected potential mutation points in specific sodium channels that can alter the pain sensation threshold of an individual. This was supported by experimental evidence in existing literature. Secondly, we examined the role of voltage-gated ion channels in inducing CIPN. Bifurcation analysis revealed that alterations in specific sodium and potassium channel conductance can induce CIPN. These findings were supplemented by in vitro recordings of the electrical activity of a sensory neuron culture. In summary, this talk will outline a framework that (i) can be used to find potential voltage-gated ion channels that can be targeted to control the pain sensation threshold in individuals and (ii) can be extended to investigate CIPN mechanisms to find therapeutic cures for it. ******* ******* Davidson School of Chemical Engineering<https://engineering.purdue.edu/ChE> Purdue University West Lafayette, IN 47907 (765) 494-4050<tel:+17654944050> (c) 2022 Purdue University<http://www.purdue.edu/purdue/disclaimer.html> All rights reserved An equal access/equal opportunity university<http://www.purdue.edu/purdue/ea_eou_statement.html>

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Thesis Defense Announcement for Che-Wei Chang
by Johnson, Beverly J 12 Apr '22

12 Apr '22

This email is to announce that Che-Wei Chang, will be defending his thesis LIGHT ALKANE CONVERSION TO VALUABLE LIQUID HYDROCARBONS ON BIFUNCTIONAL CATALYSTS IN A SINGLE STEP, Tuesday, April 19, 2022 at 10:00 AM by WebEx. The dissertation is directed by Dr. Jeff Miller. The abstract is attached, the WebEx information is below, and all are welcome to attend. Bev Johnson Graduate Program Administrator Chemical Engineering Forney Hall 2037D Purdue University 765-494-4057 [P bling] https://purdue-student.webex.com/purdue-student/j.php?MTID=m195dc7380cdda2f… Tuesday, Apr 19, 2022 10:00 am | 2 hours | (UTC-04:00) Eastern Time (US & Canada) Meeting number: 2314 199 8002 Password: CISTAR

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Arnav Deshpande Thesis Defense
by Johnson, Beverly J 11 Apr '22

11 Apr '22

This email is to announce that Arnav Deshpande, will be defending his thesis SUSTAINABLE PRODUCTION OF AROMATIC AMINO ACIDS BY ENGINEERED CYANOBACTERIA, Monday, April 18, 2022 at 12:00 PM in FRNY 3062B and by WebEx. The dissertation is directed by Dr. John Morgan. The abstract is attached, the WebEx information is below, and all are welcome to attend. Bev Johnson Graduate Program Administrator Chemical Engineering Forney Hall 2037D Purdue University 765-494-4057 [P bling] From: Bev Johnson <messenger(a)webex.com> Sent: Monday, March 7, 2022 11:16 AM To: Johnson, Beverly J <bevjohnson(a)purdue.edu> Subject: (Forward to others) Webex meeting invitation: Deshpande Defense You can forward this invitation to others. Bev Johnson is inviting you to a scheduled Webex meeting. Monday, April 18, 2022 12:00 PM | (UTC-05:00) Eastern Time (US & Canada) | 2 hrs 30 mins Join meeting<https://purdue.webex.com/purdue/j.php?MTID=m58aa942279355c19a2b4d0630fb210e8> More ways to join: Join from the meeting link https://purdue.webex.com/purdue/j.php?MTID=m58aa942279355c19a2b4d0630fb210e8 Join by meeting number Meeting number (access code): 2623 551 3669 Meeting password: boilerup Tap to join from a mobile device (attendees only) +1-855-282-6330,,26235513669##<tel:%2B1-855-282-6330,,*01*26235513669%23%23*01*> US TOLL FREE +1-415-655-0003,,26235513669##<tel:%2B1-415-655-0003,,*01*26235513669%23%23*01*> US TOLL Join by phone +1-855-282-6330 US TOLL FREE +1-415-655-0003 US TOLL Toll-free calling restrictions<https://cisco.com/go/tollfree-restrictions> Join from a video system or application Dial 26235513669(a)purdue.webex.com<%20sip:26235513669@purdue.webex.com> You can also dial 173.243.2.68 and enter your meeting number. Need help? Go to https://help.webex.com

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Reminder: Nominations accepted for the 2022 ChE Excellence in Safety Award
by Nagy, Gabriela 11 Apr '22

11 Apr '22

Hello everyone, This is a gentle reminder that nominations for the 2022 ChE Excellence in Safety Award are due next Monday, April 18. Please see below the initial announcement and attached the nomination form and the award description and nomination procedure. Thank you for taking the time to nominate our many deserving graduate students! Gabriela On behalf of the ChE Safety Committee __________________ Gabriela Nagy, PhD Industrial Education Director Davidson School of Chemical Engineering Room FRNY G051 Purdue University Tel: (765)-496-1710 E-mail: nagyg(a)purdue.edu<mailto:nagyg@purdue.edu> From: Nagy, Gabriela Sent: Tuesday, March 29, 2022 4:52 PM To: 'chme(a)ecn.purdue.edu' <chme(a)ecn.purdue.edu>; 'chmegrad(a)ecn.purdue.edu' <chmegrad(a)ecn.purdue.edu> Cc: Nagy, Gabriela <nagyg(a)purdue.edu> Subject: Nominations accepted for the 2022 ChE Excellence in Safety Award Hello Everyone, The Chemical Engineering Safety Committee is accepting nominations for the 2022 ChE Excellence in Safety Award. Please find attached the nomination form, award description and details on eligibility and selection criteria. Nomination Process: Any ChE faculty member, staff, graduate or undergraduate student performing research can nominate any eligible ChE graduate student. A nominator can support only one candidate. Please submit your nominations to Gabriela Nagy at nagyg(a)purdue.edu<mailto:nagyg@purdue.edu>, by 11:59 pm on Monday, April 18, 2022. Nominations should not exceed 250 words (please use the attached template) and should include specific examples. Due Date for nominations: April 18, 2022 by the end of day. Selection: The selection will be made by the ChE Excellence in Safety Award Committee, and the award winner will be announced to the School in May. Thank you for your commitment to safety! Sincerely, Gabriela On behalf of the ChE Safety Committee __________________ Gabriela Nagy, PhD Industrial Education Director Davidson School of Chemical Engineering Room FRNY G051 Purdue University Tel: (765)-496-1710 E-mail: nagyg(a)purdue.edu<mailto:nagyg@purdue.edu>

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ISP Recertification of our School
by Nagy, Gabriela 08 Apr '22

08 Apr '22

Hello Everyone, I am pleased to let you know that following the Integrated Safety Plan (ISP) recertification meeting with REM representatives on March 11, 2022, followed by safety inspection of selected ChE labs and corrections of identified deficiencies, our School was ISP recertified for another year. The official recertification document was signed on March 31. "Thank you!" to all of you for your efforts in making this possible! Two main deficiencies identified during lab inspections were "open and unlabeled chemical containers" and "researchers not wearing their PPE in the lab". As a reminder, ALL chemical containers, including oil baths need to be labeled, and PPE needs to be worn at all times in the lab (lab coat and safety glasses). Please also remember that outside of the lab you can wear a lab coat ONLY in areas clearly identified as "One glove policy" areas. These do not include the stairwells and the catwalk between the new and old wing of the building. If you travel between these areas you will need to take your lab coat off and put it back on at your destination lab. Thank you for your sustained commitment to safety! Sincerely, Gabriela on behalf of ChE Safety Committee __________________ Gabriela Nagy, PhD Industrial Education Director Davidson School of Chemical Engineering Room FRNY G051 Purdue University Tel: (765)-496-1710 E-mail: nagyg(a)purdue.edu<mailto:nagyg@purdue.edu>

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Security of labs and offices in FRNY
by Nagy, Gabriela 08 Apr '22

08 Apr '22

Hello everyone, It was brought to my attention that during the OSHA inspection of our building many of the labs, and even graduate student offices were found unlocked and unoccupied. Security in our building is paramount. Many of our labs have extremely hazardous chemicals and/or expensive pieces of equipment, thus it is imperative that all labs are locked at all times when researchers are not present in the lab. A good practice to keep labs secure is to keep them locked at all times and use your key to enter whenever needed. At the same time, it is equally important to safeguard your personal belongings and lock your office whenever you leave, even for a short period of time. Please let me know if you have any questions. Thank you for your commitment to safety! Gabriela On behalf of the ChE Safety Committee __________________ Gabriela Nagy, PhD Industrial Education Director Davidson School of Chemical Engineering Room FRNY G051 Purdue University Tel: (765)-496-1710 E-mail: nagyg(a)purdue.edu<mailto:nagyg@purdue.edu>

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Feedback Requested - "Safety Moment" Survey
by Gonzalez, Joshua 08 Apr '22

08 Apr '22

Dear All, During this semester, various "Safety Moments" were presented during our graduate seminars in a few different mediums/methods. On behalf of the ChE Safety Committee, we ask that those of you that attended those seminars please provide feedback on those various methods of presenting the Safety Moments via the brief survey found HERE<https://purdue.ca1.qualtrics.com/jfe/form/SV_8ukR9xBjqksdTyS>. Your constructive feedback will help the School decide on what method of delivery is best suited and should be implemented in the future. We thank you for your time and cooperation. Sincerely, Joshua --- [Davidson_H-Full-CMYK_1200px] <https://engineering.purdue.edu/ChE> Joshua Gonzalez Operations Coordinator [Phone_1D_11x16px] (765) 494-4365 | [Fax_1D_16x16px] (765) 494-0805

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