The modification of photoelectrical property of dried purple membrane (PM) film by acid treatment and deionization method is reported. By acid treatment and deionization, blue and acid purple form of bacteriorhodopsin, which have been obtained only in suspension, are able to be obtained in dried PM films. Using these films, the photoelectrical responses for blue and acid purple form of bateriorhodopsin in dried films are measured. The disappearance of the normal photocurrent and appearance of a photocurrent with an opposite polarity is observed for blue and acid purple form of dried PM. The photoelectrical property of bR in dried PM is able to modified by acid treatment and deionization. These treatments are able to control the polarity of bacteriorhodopsin photoresponse without change of the orientation of the bacteriorhodopsin molecules.
|Number of pages||6|
|Journal||Journal of Intelligent Material Systems and Structures|
|Publication status||Published - 1994 Jan 1|
ASJC Scopus subject areas
- Materials Science(all)
- Mechanical Engineering