Vladimir Tsukruk1,2
Georgia Institute of Technology1,Institute for Human and Machine Cognition2
Vladimir Tsukruk1,2
Georgia Institute of Technology1,Institute for Human and Machine Cognition2
Bio-enabled hybrid nanomaterials represent a novel class of functional materials, which uses bio-derived materials, bioinspiration and biomimetic approaches to design functional nanomaterials and structures with co-assembled biological and synthetic components to bring best of two worlds: adaptive photonic functions and chiroptical activity, flexibility and mechanical strength, potential sustainability and scalability [1]. Here, we summarize our recent results on functional bio-derived chiral nematic polysaccharides co-assembled with graphene oxides, organic semiconductors, magnetic nanoparticles, and quantum dots for adaptive chiroptical materials, magnetic materials and photonic multi-value logic thin film electronics. <br/> <br/>Firstly, we discuss robust photonic nanomaterials from cellulose nanocrystals and nanofibers decorated with highly photoluminescent organic dyes, quantum dots and quantum nanowires for tailored emission of linear and circular polarized light [2, 3]. Secondly, we present results on magnetically steerable uniform photonic organization of cellulose nanocrystals decorated with superparamagnetic nanoparticles to achieve uniform organization [4]. Assembly under weak magnetic field gradients enables transformation from helicoidal cholesteric to uniaxial nematic phase with near-perfect orientation order parameter was achieved across large areas, enhanced mechanical robustness, and fast actuation ability. Finally, we demonstrate biophotonic field effect transistors mediated by circularly polarized excitation with multi-valued logic elements for dramatically elevated encryption ability [5].<br/> <br/><b>References</b><br/>[] D. Nepal, S. Kang, K. M. Adstedt, K. Kanhaiya, M. R. Bockstaller, L. C. Brinson, M. J. Buehler, P. V. Coveney, K. Dayal, J. A. El-Awady, L. C. Henderson, D. L. Kaplan, S. Keten, N. A. Kotov, G. C. Schatz, S. Vignolini, F. Vollrath, B. I. Yacobson, V. V. Tsukruk, H. Heinz, New Frontiers of Structural Bioinspired Nanocomposites: Advances and Opportunities, <i>Nature Mat</i>., <b>2023</b>, <i>22, </i>18; D. Bukharina, R. Xiong, M. Kim, X. Zhang, S. Kang, V. V. Tsukruk, Chiral Nematic Liquid Crystal Organization of Natural Polymer Nanocrystals, <i>Liquid Crystals</i>, <b>2023, </b>https://doi.org/10.1080/02678292.2023.2168776<br/>[2] S. Kang, Y. Li, D. Bukharina, M. Kim, H. Lee, M. L Buxton, M. J. Han, D. Nepal, T. J. Bunning, V. V. Tsukruk<sup>, </sup>Bio-organic chiral nematic materials with adaptive light emission and on-demand handedness, <i>Adv. Mater</i>., <b>2021,</b> 2103329<br/>[3] S. Kang, G. M. Biesold, H. Lee, D. Bukharina, Z. Lin, V. V. Tsukruk, Dynamic chiro-optics of bio-inorganic nanomaterials via seamless co-assembly of semiconducting nanowires and polysaccharide nanocrystals, <i>Adv. Funct. Mater</i>., <b>2021</b>, 2104596.<br/>[4] X. Zhang, S. Kang, K. Adstedt, M. Kim, R. Xiong, J. Yu, X. Chen, X. Zhao, C. Ye, V. V. Tsukruk, Uniformly aligned flexible magnetic films from bacterial nanocelluloses for fast actuating optical materials, <i>Nature Com</i>.,<b> 2022</b>, <i>13</i>, 5804; https://doi.org/10.1038/s41467-022-33615-z;<br/>[5] M. J. Han, M. Kim, V. V. Tsukruk, Multi-Valued Logic Structures for Optical Computing with Photonically Enabled Chiral Bio-Organic Structures, <i>ACS Nano</i>, <b>2022</b>, doi.org/10.1021/acsnano.2c04182; M. J. Han, M. Kim, V. V. Tsukruk, Chiro-Optoelectronic Encodable Multilevel Thin Film Electronic Elements with Active Bio-Organic Dielectric Layer, <i>Small, </i><b>2023</b>, https://doi.org/10.1002/smll.202207921