材料系邀请到 University of California, Santa Barbara 的工学院院长Matthew Tirrell来演讲 题目 : NanoBiotechnology: How Will the Products Be Made? (内容包含对该校工学院的介绍) 时间 : 2006.01.04(四) 14:00-15:00 演讲者 : Matthew Tirrell Departments of Chemical Engineering and Materials Materials Research Laboratory Institute for Collaborative Biotechnologies California NanoSystems Institute University of California, Santa Barbara工学院院长 地点 : 工学院综合大楼 203室(国际演讲厅) 欢迎各位踊跃参加 如有疑问请洽02-33664531材料系办公室 简介 : Self-assembly is a route to processing of chemical products that relies on information content built into the process precursors. Self-assembly occurs frequently in biology but translating that bioinspiration to controllable chemical processing presents many interesting problems. Self-assembly is guided by information content intrinsic to the assembling units, in which multiple levels of structural organization are built into a product. Owing to the complexity of structures formed and the nominal ease of spontaneous organization, self-assembly is increasingly being examined as a practical chemical processing method. The resultant structures are being actively explored as new materials, surface treatments, catalysts, membranes, photonic materials and electronic devices, to name a few areas of current engineering exploration. Self-assembly is one of the key mechanisms by which nature builds products, from biological molecules such as proteins to larger structures such as cells and extracellular matrices, the spatial arrangement of atoms is determined, in large part, by information built into the assembling units. Complexity, in the sense of development of emergent properties of an assembly that cannot readily be envisioned from the constituents, can arise spontaneously during self-assembly and often does, especially in biological systems. We are only beginning to develop sufficiently sophisticated synthetic assemblers to mimic biology in this way. Indeed, other routes to self-organization,including those far from equilibrium, may also be of interest for nanotechnology. A challenge for engineers is to develop the practical routes to technologically important self-assembly processes. Applications will be to biomaterials, porous materials, molecular electronics and many other areas. Hurdles that must be overcome include the precision synthesis of precursors, mastering the kinetics and dynamics of such processes, scale-up, and the characterization and control of self-assembly products and processes. Prospects for success and current efforts in these areas will be discussed. --

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