Bio-Inspired Assembly of Artificial Photosynthetic Antenna Complexes for Development of Nanobiodevices.

摘要

The purpose of this proposal is to use photosynthetic antenna pigment complexes of purple photosynthetic bacteria in order to control the direction and orientation of the complex on electrodes with pattern for developing nanobiodevices (nanobiophotonics). The advantage of the pigment complex is its high efficiency of light-energy conversion throughout the near UV to near IR region and much higher durability using these methods than ordinary light-harvesting (LH) complex isolated from photosynthetic bacteria. The present generations of sensor and semiconductor devices with an integrated circuit for developing nano-level size are too expensive to be cost-effective compared to other existing technologies. Expanding existing silicon device technologies and nanofabrication technics by incorporation of modified photosynthetic protein / pigments complexes or their protein-mimic materials to perform tasks of light-harvesting and charge separation, is currently explored as a novel concept, which makes use of natural protein environments to create a directional flow of light energy and electronic charge separation, meanwhile reducing the cost aspect by the use of bio-materials and their synthetic protein-mimic materials. The majority of the aim is construction of the array of artificial photosynthetic antenna system with nano-patterning substrate using modified photosynthetic protein materials prepared from modern biosynthetic manufacturing methods and photosynthetic pigments for developing nanobiophotonics.