湖南大学“岳麓材料杰出学者论坛”第238期
题目: Bioinspired Multi-Scale Pores and Channels
报告人:侯旭教授
地点:两山一湖中四栋二楼报告厅
时间:2023年8月2日(周三)上午10:00
主持人:潘安练教授
邀请人:材料科学与工程学院
报告摘要:
Learning from nature is the eternal theme of the development of new materials and systems. The relationship between the micro-/nano structures of biological tissue and their performances provides inspirations for proposing new ideas for the additive and subtractive manufacturing of functional materials. Inspired from the dynamic and non-fouling fluid transport through the Kohn pores of Alveoli, which are composed of liquid infused porous structures, we proposed the original concept of bioinspired liquid gating membrane materials. Liquid gating membranes utilize the capillary-stabilized functional liquid as a pressure-driven, reversible, and reconfigurable gate to fill and seal the pores in the closed state and create completely liquid-lined pores in the open state under pressure changes. Because of the defect-free molecular-smooth liquid interface, multiphase transportation in the membranes can be modulated with exceptional antifouling and energy-saving manners. In recent years, the original concept has become a reality through the development of various smart liquid gating membrane materials by designing the two essential part of the liquid gating membranes: the solid porous matrix and the gating liquid. Liquid gating membranes expand the basic scientific issues of the traditional pore/channel membrane materials from the solid−liquid/gas interface to the solid−liquid−liquid/gas interface and have founds various applications in multiphase separation, chemical detection, biomedical catheters, mobile valves, microscale flow control, etc. Inspired by the ion channels in the cell membrane, we designed and prepared a variety of bioinspired smart symmetric/asymmetric nanochannel materials by responsive physicochemical design of the materials, and realized the smart regulation of mass transport in nanoscale confined spaces, and proposed the new concept of bioinspired nanofluidic iontronics. The research of bioinspired multi-scale pore/channel materials provided new methods and platforms for applications of bioinspired materials, which promotes the interdisciplinary development of bionics, materials science, chemistry, physics, biomedicine, micro nano fabrication technologies and other disciplines.
报告人简介: 侯旭，国家重点研发计划纳米科技重点专项项目负责人，现任厦门大学化学化工学院、物理科学与技术学院双聘的南强特聘教授，电化学科学与工程研究所所长，博士生导师。从事液基材料的研究，出版了2本国际学术著作，授权国内外专利20余项。近三年，以唯一通讯作者在高水平学术期刊如Nature, Science, PNAS, 《国家科学评论》等上发表研究论文。侯旭教授所引领的原创“液体门控技术”被世界权威化学组织“国际纯粹与应用化学联合会IUPAC”评为2020年全球“化学领域十大新兴技术”。他曾获得全国创新争先奖，科学探索奖等重要奖项。由于侯旭教授的系列原创成果，曾受邀参加了央视CCTV科教频道《百家讲坛》栏目，作为科学公开课的主讲人。
