Functional Bio-enabled Nanomaterials: from Adaptive Photonic Materials to Actuating Flexible Magnets
"Functional Bio-enabled Nanomaterials: from AdaptivePhotonic Materials to Actuating Flexible Magnets”
Abstract: Bio-enabled hybrid nanomaterials represent a novel class of functional materials, whichuses bio-derived materials, bioinspiration and biomimetic approaches to design hybrid materialsand structures with co-assembled biological and synthetic components to bring best of twoworlds: versatile diverse adaptive functions and mechanical strength, flexibility, and scalability [1].In this talk, we summarize our recent results on functional hybrid nanomaterials from chiralnematic polysaccharides for adaptive chiroptical materials, magnetic photonic materials andoptical computing. We discuss robust photonic nanomaterials from cellulose nanocrystals andnanofibers decorated with highly photoluminescent organic dyes, quantum dots and quantumnanowires for tailored emission of linear and circular polarized light [2]. Then, we present resultson magnetically steerable uniform photonic organization of cellulose nanocrystals decorated withsuperparamagnetic nanoparticles [3]. Assembly under weak magnetic field gradients enablestransformation from helicoidal cholesteric to uniaxial nematic phase with near-perfect orientationachieved across large areas, enhanced mechanical robustness, and fast actuation ability. Finally,we demonstrate biophotonic-encrypted field effect transistors with multi-valued logic elementsfor massive parallel computing and elevated encryption ability [4].
References: [1] D. Nepal, et al, Hierarchically Structured Bioinspired Nanocomposites, Nature Mat., 2022,https://doi.org/10.1038/s41563-022-01384-1
[2] S. Kang, et al., Bio-organic chiral nematic materials with adaptive light emission and on-demand handedness, Adv. Mater., 2021,2103329
[3] X. Zhang et al, Uniformly aligned flexible magnetic films from bacterial nanocelluloses for fast actuating optical materials, NatureCom., 2022, 13, 5804;https://doi.org/10.1038/s41467-022-33615-z
[4] M. J. Han, M. Kim, V. V. Tsukruk, Multi-Valued Logic Structures forOptical Computing with Photonically Enabled Chiral Bio-Organic Structures, ACS Nano, 2022, doi.org/10.1021/acsnano.2c04182
Date and Time
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- Date: 01 Feb 2023
- Time: 11:00 AM to 11:50 AM
- All times are (UTC-06:00) Central America
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- 9700 S cass av
- Lemont, Illinois
- United States
- Building: 440
- Room Number: A105
Speakers
Functional Bio-enabled Nanomaterials: from Adaptive Photonic Materials to Actuating Flexible Magnets”, by Prof. V. Tsuk
Biography:
Bio: Vladimir V. Tsukruk is a Regents Professor and Director of Microanalysis Center at the School of Materials Science and Engineering, GeorgiaInstitute of Technology, Atlanta, USA. He received MS degree in physics from the National University of Ukraine, PhD and DSc degrees inchemistry and polymer science from the National Academy of Sciences of Ukraine. He carried out his post-doctoral research at the U. Marburg,Darmstadt TU and U. Akron. He has co-authored about 540 refereed articles in archival journals and two books, which have been cited morethan 37,000 times. He has organized 13 professional meetings and has trained about 110 graduate students and post-docs. Currently, he serveson the Editorial Advisory Boards of five professional journals and as an Executive Editor at ACS Applied Materials and Interfaces. His research inthe field of functional nanomaterials, surfaces and interfaces, directed assembly of synthetic/natural polymers, nanostructures, and bioinspiredmaterials has been recognized by Fulbright Award, Regents Professorship, Sigma Chi Sustained Research Award, Outstanding Research AuthorAward, Humboldt Research Award, and the National Science Foundation Special Creativity Award, among others. He is an elected Fellow ofAmerican Physical Society, Materials Research Society, and American Chemical Society.