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存在于嗜盐菌紫膜中的唯一蛋白质——细菌视紫红质(bacteriorhodopsin,bR)具有奇特的功能:受可见光照射时,能发生光致变色并具有质子泵功能.在生物体外,bR的稳定性极好.可以利用Langmuir-Blodgett制膜技术或其它方法,在透光的载体(如导电玻璃)上形成单层和多层的bR-LB膜或化学增强膜.这种薄膜具有独特的双稳态光色互变特性、非线性光学特性和微分光电响应特性,已被用来研究构造生物分子型的光-光和光-电器件.近年来的研究结果表明,基于bR-LB膜制作的光电器件在信息传感领域有着潜在的应用前景.这方面的研究工作已经引起人们的极大关注.
The only protein present in the purple halophilic bacteriorhodopsin (bacteriorhodopsin, bR) has the peculiar function of being photochromic and having a proton pump function upon exposure to visible light, and in vivo, the stability of bR It is possible to use Langmuir-Blodgett film-forming techniques or other methods to form single and multilayer bR-LB films or chemically amplified films on a light-transmissive carrier such as conductive glass.The film has a unique double Steady state photochromic, non-linear optical and differential optoelectronic response have been used to study the construction of biomolecule opto-optical and optoelectronic devices. Recent research shows that the bR-LB films Optoelectronic devices have potential application prospects in the field of information sensing.Research work in this area has drawn great attention.