All BNC Users: The semiannual shutdown of the center will take place Tuesday through Friday, May 1-4, 2012. The CLEANROOM and LABS will be closed at 11:30 PM Monday evening. If all goes well, they will reopen at 8:00 AM Friday morning. If issues arise, they may be closed for some or all of Friday, May 4. Thank you, Mark Voorhis Building Manager Purdue University Birck Nanotechnology Center Office: (765) 494-3036