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江雷研究员在世界上首次提出的“纳米界面材料的二元协同效应”新思想揭示了生物体表面超疏水性的机理,指导相关仿生材料的可控制备,在超双亲/超双疏功能材料的制备和性质研究等方面取得了系统的创新成果。今年10月,江雷研究员将应邀出席“2009第八届中国国际纳米科技(湘潭)研讨会”,并做大会特邀报告,报告摘要如下: 相似文献
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Progress reports are a new type of article in Advanced Materials, dealing with the hottest current topics, and providing readers with a critically selected overview of important progress in these fields. It is not intended that the articles be comprehensive, but rather insightful, selective, critical, opinionated, and even visionary. We have approached scientists we believe are at the very forefront of these fields to contribute the articles, which will appear on an annual basis. The article below describes the latest advances in bio‐inspired materials chemistry. 相似文献
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Progress reports are a new type of article in Advanced Engineering Materials, dealing with the hottest current topics, and providing readers with a critically selected overview of important progress in these fields. It is not intended that the articles be comprehensive, but rather insightful, selective, critical, opinionated, and even visionary. We have approached scientists we believe are at the very forefront of these fields to contribute the articles, which will appear on an annual basis. The article below describes the latest advances in Bio‐inspired Materials Chemistry. 相似文献
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Ewa M. Spiesz Dominik T. Schmieden Antonio M. Grande Kuang Liang Jakob Schwiedrzik Filipe Natalio Johann Michler Santiago J. Garcia Marie‐Eve Aubin‐Tam Anne S. Meyer 《Small (Weinheim an der Bergstrasse, Germany)》2019,15(22)
The impressive mechanical properties of natural composites, such as nacre, arise from their multiscale hierarchical structures, which span from nano‐ to macroscale and lead to effective energy dissipation. While some synthetic bioinspired materials have achieved the toughness of natural nacre, current production methods are complex and typically involve toxic chemicals, extreme temperatures, and/or high pressures. Here, the exclusive use of bacteria to produce nacre‐inspired layered calcium carbonate‐polyglutamate composite materials that reach and exceed the toughness of natural nacre, while additionally exhibiting high extensibility and maintaining high stiffness, is introduced. The extensive diversity of bacterial metabolic abilities and the possibility of genetic engineering allows for the creation of a library of bacterially produced, cost‐effective, and eco‐friendly composite materials. 相似文献
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Wei Huang David Restrepo Jae‐Young Jung Frances Y. Su Zengqian Liu Robert O. Ritchie Joanna McKittrick Pablo Zavattieri David Kisailus 《Advanced materials (Deerfield Beach, Fla.)》2019,31(43)
Biological materials found in Nature such as nacre and bone are well recognized as light‐weight, strong, and tough structural materials. The remarkable toughness and damage tolerance of such biological materials are conferred through hierarchical assembly of their multiscale (i.e., atomic‐ to macroscale) architectures and components. Herein, the toughening mechanisms of different organisms at multilength scales are identified and summarized: macromolecular deformation, chemical bond breakage, and biomineral crystal imperfections at the atomic scale; biopolymer fibril reconfiguration/deformation and biomineral nanoparticle/nanoplatelet/nanorod translation, and crack reorientation at the nanoscale; crack deflection and twisting by characteristic features such as tubules and lamellae at the microscale; and structure and morphology optimization at the macroscale. In addition, the actual loading conditions of the natural organisms are different, leading to energy dissipation occurring at different time scales. These toughening mechanisms are further illustrated by comparing the experimental results with computational modeling. Modeling methods at different length and time scales are reviewed. Examples of biomimetic designs that realize the multiscale toughening mechanisms in engineering materials are introduced. Indeed, there is still plenty of room mimicking the strong and tough biological designs at the multilength and time scale in Nature. 相似文献
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Bio‐Inspired Mechanotactic Hybrids for Orchestrating Traction‐Mediated Epithelial Migration 下载免费PDF全文
Pingqiang Cai Michael Layani Wan Ru Leow Shahrouz Amini Zhiyuan Liu Dianpeng Qi Benhui Hu Yun‐Long Wu Ali Miserez Shlomo Magdassi Xiaodong Chen 《Advanced materials (Deerfield Beach, Fla.)》2016,28(16):3102-3110
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Bio‐Inspired Cryo‐Ink Preserves Red Blood Cell Phenotype and Function During Nanoliter Vitrification 下载免费PDF全文
Rami El Assal Sinan Guven Umut Atakan Gurkan Irep Gozen Hadi Shafiee Sedef Dalbeyler Noor Abdalla Gawain Thomas Wendy Fuld Ben M. W. Illigens Jessica Estanislau Joseph Khoory Richard Kaufman Claudia Zylberberg Neal Lindeman Qi Wen Ionita Ghiran Utkan Demirci 《Advanced materials (Deerfield Beach, Fla.)》2014,26(33):5815-5822
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Worarin Meesorn Cline Calvino Jens C. Natterodt Justin O. Zoppe Christoph Weder 《Advanced materials (Deerfield Beach, Fla.)》2019,31(14)
A new concept for the design of self‐toughening thermoplastic polymers is presented. The approach involves the incorporation of plasticizer‐filled microcapsules (MCs) in an intrinsically rigid and brittle matrix polymer. The intriguing adaptability that this simple tactic enables is demonstrated with composites composed of a poly(lactic acid) (PLA) matrix and 5–20% w/w poly(urea‐formaldehyde) (PUF) MCs that contained hexyl acetate as plasticizer. At low strain (<1.5%), the glassy PLA/MC composites remain rigid, although the intact MCs reduce the Young's modulus and tensile strength by up to 50%. While the neat PLA shows brittle failure at a strain of around 2.5%, the composites yield in this regime, because the MCs rupture and release their plasticizing cargo. This effect leads up to 25‐fold increase of the elongation at break and 20‐fold increase of the toughness vis‐à‐vis the neat PLA, while the impact on modulus and ultimate stress is much smaller. Ballistic impact tests show that the self‐toughening mechanism also works at much higher strain rates than applied in tensile tests and the operating mechanism is corroborated through systematic thermomechanical studies that involved dynamic mechanical testing and thermal analysis. 相似文献
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Xuan Zhang Linfeng Chen Kang Hui Lim Spandhana Gonuguntla Kang Wen Lim Dicky Pranantyo Wai Pong Yong Wei Jian Tyler Yam Zhida Low Wee Joon Teo Hao Ping Nien Qiao Wen Loh Siowling Soh 《Advanced materials (Deerfield Beach, Fla.)》2019,31(11)
Systems that are intelligent have the ability to sense their surroundings, analyze, and respond accordingly. In nature, many biological systems are considered intelligent (e.g., humans, animals, and cells). For man‐made systems, artificial intelligence is achieved by massively sophisticated electronic machines (e.g., computers and robots operated by advanced algorithms). On the other hand, freestanding materials (i.e., not tethered to a power supply) are usually passive and static. Hence, herein, the question is asked: can materials be fabricated so that they are intelligent? One promising approach is to use stimuli‐responsive materials; these “smart” materials use the energy supplied by a stimulus available from the surrounding for performing a corresponding action. After decades of research, many interesting stimuli‐responsive materials that can sense and perform smart functions have been developed. Classes of functions discussed include practical functions (e.g., targeting and motion), regulatory functions (e.g., self‐regulation and amplification), and analytical processing functions (e.g., memory and computing). The pathway toward creating truly intelligent materials can involve incorporating a combination of these different types of functions into a single integrated system by using stimuli‐responsive materials as the basic building blocks. 相似文献