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SUMMARY:IEM Distinguished Lecturers Seminar: 3D Printed protein-polymer ne
 tworks as mechanical metamaterials
DTSTART:20260506T121500
DTEND:20260506T130000
DTSTAMP:20260525T075951Z
UID:6bbc305d019283eb311094f9a929aed8d87d35970dfec5c60e86e9b8
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof Alshakim Nelson\, Department of Chemistry\, University o
 f Washington\, Seattle\, Washington\, USA\n*** Drinks and pizza at 11:45 i
 n the lobby of BM 5202 ***\n\nAbstract\nBio-sourced and biodegradable poly
 mers for additive manufacturing could enable the rapid fabrication of part
 s for a broad spectrum of applications ranging from healthcare to aerospac
 e. However\, a limited number of these materials are suitable for light-ba
 sed 3D printing processes.  Herein\, we report a process to fabricate pro
 tein-based constructs using commercially available light-based 3D printers
 . Our approach utilizes globular proteins as single-chain nanoparticles th
 at can be chemically derivatized and incorporated into polymer networks. W
 e demonstrated that this strategy is suitable using native proteins such a
 s serum albumins\, as well as de novo designed proteins. Interestingly\, 3
 D printing enabled the fabrication of arbitrary bioplastic constructs with
  shape memory behavior. We posit that the mechanical deformation of these 
 materials and their subsequent recovery back to their original shape is dr
 iven by the mechanically induced deformation and unraveling of globular pr
 oteins within the network\, followed by re-assembly of the globular struct
 ure during shape recovery. Our work demonstrates a broadly applicable meth
 od to 3D print protein-containing networks and the unique functional prope
 rties that can emerge from them.\n\n\nBio\nAlshakim Nelson is the Job and 
 Gertrud Tamaki Endowed Professor of Chemistry and Department Chair at the 
 University of Washington. He received his PhD in chemistry from the Univer
 sity of California\, Los Angeles in 2004\, where he worked with Sir J. Fra
 ser Stoddart on carbohydrate-containing polymers and macrocycles. He was t
 hen an NIH postdoctoral fellow at the California Institute of Technology w
 orking for Professor Robert Grubbs on olefin metathesis catalysts for the 
 formation of supramolecular ensembles. Dr. Nelson was a Research Staff Mem
 ber at IBM Almaden Research Center for 10 years where he focused on the sy
 nthesis of nanomaterial building blocks that enabled large area nanomanufa
 cturing via self-assembly. In 2015\, Dr. Nelson joined the faculty at the 
 UW\, where his research group focuses on the synthesis\, characterization\
 , and processing of stimuli-responsive materials for 3D printing biohybrid
  and bioinspired materials. Dr. Nelson has over 100 publications and 30 is
 sued patents. His honors and awards include recognition as an IBM Master I
 nventor\, Kavli Foundation Fellow\, and NSF CAREER award. He is also an As
 sociate Editor for ACS Macro Letters.\n\n 
LOCATION:BM 5202 https://plan.epfl.ch/?room==BM%205202 https://epfl.zoom.u
 s/j/64413140571
STATUS:CONFIRMED
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