Monthly Talk Series
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Abstract:
For centuries, engineers have strived to make materials that are stronger, lighter and more efficient. Natural systems have developed well-orchestrated strategies, exemplified in the biological tissues of numerous animal and plant species, to synthesize and construct materials from a limited selection of available starting materials. The resulting structures display multiscale architectures with incredible fidelity and often exhibit properties that are frequently superior to mechanical properties exhibited by engineering materials. These biological systems modulate controlled synthesis and hierarchical assembly by using organic scaffolds and structure-directing agents, combined with ions, clusters and nano-scaled building blocks that are integrated into macroscale structures.
We are investigating organisms that have taken advantage of hundreds of millions of years of evolutionary changes to derive structures, which are not only strong and tough, but also display multifunctional features including damage sensing and self-cooling. We discuss the mechanical properties and functionality stemming from these hierarchical features as well as how they are formed. From the investigation of synthesis-structure-property relationships in these unique organisms, we are now developing and fabricating cost-effective and environmentally friendly advanced nanomaterials for energy conversion and storage, as well as water purification. We utilize organic materials as templates to regulate interfacial interactions that result in controlled particle size, phase and surface area that ultimately dictate performance.
[1]. “Nano-Architected Tough Biological Composites from Assembled Chitinous Scaffolds”, W. Huang, D. Kisailus, et al., Accounts of Chemical Research, 55 (10) (2022) 1360-1371. DOI: 10.1021/acs.accounts.2c00110
[2]. “Mesocrystalline Ordering and Phase Transformation of Iron Oxide Biominerals in the Ultrahard Teeth of Cryptochiton stelleri,” T. Wang, D. Kisailus, et al., Small Structures, (2022) 2100202. DOI: 10.1002/sstr.202100202
[3]. “Toughening Mechanisms of the Elytra of the Diabolical Ironclad Beetle,” J. Rivera, D. Kisailus, et al., Nature, 586 (2020) 543-548.
[4]. “A natural impact resistant bi-continuous composite nanoparticle coating,” W. Huang, D. Kisailus, et al., Nature Materials, 9 (11) (2020) 1236-1243.
[5]. “Multiscale toughening mechanisms in biological materials and bioinspired designs,” W. Huang, D. Kisailus, et al., Advanced Materials, 31 (2019) 1901561.
[6]. “Integrated transcriptomic and proteomic analyses of a molecular mechanism of radular teeth biomineralization in Cryptochiton stelleri,” M. Nemoto, D. Kisailus, et al., Scientific Reports, 9 (2019), 856.
[7]. “Electrocatalytic N-Doped Graphitic Nanofiber - Metal/Metal Oxide Nanoparticle Composites,” H. Tang, D. Kisailus, et al., Small, 14 (2018), 1703459.
[8]. “Biomimetic Structural Materials: Inspiration from Design and Assembly,” N. Yaraghi, D. Kisailus, Annual Reviews of Physical Chemistry, 69 (2018) 23-57.
[9]. Phase transformations and structural developments in the radular teeth of Cryptochiton stelleri,” Q. Wang, D. Kisailus, et al., Adv. Funct. Mater., 23 (2013) 2908–2917.
[10].“The Stomatopod Dactyl Club: A Formidable Damage-Tolerant Biological Hammer,” J. Weaver, D. Kisailus, et al., Science, 336 (2012) 1275-1280.
For centuries, engineers have strived to make materials that are stronger, lighter and more efficient. Natural systems have developed well-orchestrated strategies, exemplified in the biological tissues of numerous animal and plant species, to synthesize and construct materials from a limited selection of available starting materials. The resulting structures display multiscale architectures with incredible fidelity and often exhibit properties that are frequently superior to mechanical properties exhibited by engineering materials. These biological systems modulate controlled synthesis and hierarchical assembly by using organic scaffolds and structure-directing agents, combined with ions, clusters and nano-scaled building blocks that are integrated into macroscale structures.
We are investigating organisms that have taken advantage of hundreds of millions of years of evolutionary changes to derive structures, which are not only strong and tough, but also display multifunctional features including damage sensing and self-cooling. We discuss the mechanical properties and functionality stemming from these hierarchical features as well as how they are formed. From the investigation of synthesis-structure-property relationships in these unique organisms, we are now developing and fabricating cost-effective and environmentally friendly advanced nanomaterials for energy conversion and storage, as well as water purification. We utilize organic materials as templates to regulate interfacial interactions that result in controlled particle size, phase and surface area that ultimately dictate performance.
[1]. “Nano-Architected Tough Biological Composites from Assembled Chitinous Scaffolds”, W. Huang, D. Kisailus, et al., Accounts of Chemical Research, 55 (10) (2022) 1360-1371. DOI: 10.1021/acs.accounts.2c00110
[2]. “Mesocrystalline Ordering and Phase Transformation of Iron Oxide Biominerals in the Ultrahard Teeth of Cryptochiton stelleri,” T. Wang, D. Kisailus, et al., Small Structures, (2022) 2100202. DOI: 10.1002/sstr.202100202
[3]. “Toughening Mechanisms of the Elytra of the Diabolical Ironclad Beetle,” J. Rivera, D. Kisailus, et al., Nature, 586 (2020) 543-548.
[4]. “A natural impact resistant bi-continuous composite nanoparticle coating,” W. Huang, D. Kisailus, et al., Nature Materials, 9 (11) (2020) 1236-1243.
[5]. “Multiscale toughening mechanisms in biological materials and bioinspired designs,” W. Huang, D. Kisailus, et al., Advanced Materials, 31 (2019) 1901561.
[6]. “Integrated transcriptomic and proteomic analyses of a molecular mechanism of radular teeth biomineralization in Cryptochiton stelleri,” M. Nemoto, D. Kisailus, et al., Scientific Reports, 9 (2019), 856.
[7]. “Electrocatalytic N-Doped Graphitic Nanofiber - Metal/Metal Oxide Nanoparticle Composites,” H. Tang, D. Kisailus, et al., Small, 14 (2018), 1703459.
[8]. “Biomimetic Structural Materials: Inspiration from Design and Assembly,” N. Yaraghi, D. Kisailus, Annual Reviews of Physical Chemistry, 69 (2018) 23-57.
[9]. Phase transformations and structural developments in the radular teeth of Cryptochiton stelleri,” Q. Wang, D. Kisailus, et al., Adv. Funct. Mater., 23 (2013) 2908–2917.
[10].“The Stomatopod Dactyl Club: A Formidable Damage-Tolerant Biological Hammer,” J. Weaver, D. Kisailus, et al., Science, 336 (2012) 1275-1280.
Biography:
David Kisailus is the Henry Samueli Faculty Excellence Professor in the Department of Materials Science and Engineering at the University of California, Irvine. Professor Kisailus, a Kavli Fellow of the National Academy of Sciences and Member of UNESCO Chair in Materials and Technologies for Energy Conversion, Saving and Storage (MATECSS), received his Ph.D. in Materials Science from the University of California at Santa Barbara (2002), M.S. from the University of Florida in Materials Science and B.S. in Chemical Engineering from Drexel University. After his Ph.D., Prof. Kisailus was appointed as a post-doctoral researcher in the Institute for Collaborative Biotechnologies, University of California at Santa Barbara. Following this, he was a Research Scientist at HRL Laboratories and then joined as faculty at the University of California. Professor Kisailus is currently the PI of the Biomimetics and Nanostructured Materials Group and the Director of a Multi-University Research Initiative on Convergent Evolution to Engineering Materials with UC Berkeley, UC San Diego, Purdue and Northwestern Universities. His group’s research focuses on investigating synthesis – structure - property relationships in biological materials and their translation to biomimetics, and on developing solution-based processes to synthesize nanoscale materials for energy and environmental-based applications. Professor Kisailus has published more than 150 papers in journals such as Science, Nature, Nature Materials, ACS Nano, Advanced Materials, Advanced Functional Materials, Materials Today, PNAS, and JACS. He has also been granted 16 patents (with more than 20 pending). His research is highlighted in high profile media including Nature, NY Times, LA Times, National Geographic, Discovery Channel and BBC.
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