视紫红蛋白在一维纳米结构表面的组装及其纳米光电器件制备研究

Bacteriorhodopsin (bR) has attracted much interest in bioelectronics because of its desirable photonic properties and long-term stabilities along with the ability to maintain its biological activity when immobilized on solid supports. Bioelectronic nano-device on basis of bR can explore its applications in integrated bioelectronics device systems as nano-scaled power supply source or opto-electric sensing unit. Moreover, the study on the photonic behavior of bR units on one-dimensional nanowire is also of great importance to achieve high performance for bR-based photonic device in future. In this program, top-down micro/nano fabrication technique and bottom-up self-assembly technique are combined together to incorporate bR molecules onto single-conducting-polymer nanowire-based building blocks via a self-assembly process. The controlled self-assembly behavior of bR molecules on a single conducting polymer nanowire will be realized by the use of different dopants and the control of assembly environment. The photonic performance studies at the single nanostructure level will be able to elaborate the mechanism of the single-conducting-polymer-nanowire-based bR photonic device, and illuminate the relationship among intrinsic material properties, structures and functions of such device, which could establish fundamentals for its further theoretical exploration and practical applications.

视紫红蛋白的独特的光电转换性质与优异稳定性使其在生物分子电子器件领域受到广泛关注，基于一维纳米结构单元的视紫红蛋白微纳米器件的研究不仅可以拓展视紫红蛋白在微纳器件系统中作为供能以及光电传感功能单元的应用，并且研究视紫红蛋白在一维纳米线结构上的光电性能表现对高性能的视紫红蛋白光电器件的制备具有重要的指导意义。本项目将自上而下微纳米加工技术与自下而上的分子自组装技术有机地结合起来，开展将有活性功能的视紫红蛋白通过自组装的手段引入到一维单根导电聚合物纳米材料结构单元上的研究，通过导电聚合物纳米材料的选择，掺杂剂的改变，组装环境的调控，探索视紫红蛋白在导电聚合物纳米线上的可控组装问题；通过对器件光电转换性能的研究与优化，阐明基于一维导电聚合物纳米线的视紫红蛋白光电器件的工作机制，从本质上揭示该类器件的材料性质、结构、功能之间的关系，为进一步的理论探索和实际应用奠定基础。

视紫红蛋白的独特的光电转换性能与优异稳定性使其在生物分子电子器件领域受到广泛关注，基于一维纳米结构单元的视紫红蛋白微纳米器件的研究不仅可以拓展视紫红蛋白在微纳器件系统中作为供能以及光电传感功能单元的应用，并且研究视紫红蛋白在一维纳米线结构上的光电性能表现对高性能的视紫红蛋白光电器件的制备具有重要的指导意义。本项目将自上而下微纳米加工技术与自下而上的分子自组装技术有机地结合起来，开展将有活性功能的视紫红蛋白通过自组装的手段引入到一维单根导电聚合物纳米材料结构单元上的研究，探索视紫红蛋白在导电聚合物纳米线上的可控组装问题。此外，将基于单根导电聚合物纳米线结构单元的生物分子器件研究进行了拓展，并将所制备的有序导电聚合物纳米线/石墨烯复合结构拓展到葡萄糖传感以及葡萄糖燃料电池等基于葡萄糖氧化酶的生物分子电子器件的应用领域当中，并展示出了良好的性能与应用前景。