Bio-photosensor: Cyanobacterial photosystem I coupled with transistor via molecular wire.
Bio-photosensor: Cyanobacterial photosystem I coupled with transistor via molecular wire.
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DOI：
10.1016/j.bbabio.2006.11.008
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发表时间：
2007-06
期刊：
影响因子：
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通讯作者：
N. Terasaki;N. Yamamoto;K. Tamada;M. Hattori;T. Hiraga;Akihiko Tohri;Ikutaro Sato;Masako Iwai;Michinao Iwai;Shunpei Taguchi;I. Enami;Y. Inoue;Y. Yamanoi;T. Yonezawa;K. Mizuno;Masaki Murata;H. Nishihara;S. Yoneyama;M. Minakata;Tsutomu Ohmori;M. Sakai;M. Fujii
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文献类型：
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作者：
N. Terasaki;N. Yamamoto;K. Tamada;M. Hattori;T. Hiraga;Akihiko Tohri;Ikutaro Sato;Masako Iwai;Michinao Iwai;Shunpei Taguchi;I. Enami;Y. Inoue;Y. Yamanoi;T. Yonezawa;K. Mizuno;Masaki Murata;H. Nishihara;S. Yoneyama;M. Minakata;Tsutomu Ohmori;M. Sakai;M. Fujii
我们报告了首次成功地将电子从嗜热蓝细菌的光系统 I (PSI) 直接输出到场效应晶体管 (FET) 的栅极，方法是通过新设计的分子线（即人造维生素 K1 和金纳米颗粒）绕过电子流；简而言之，这种新制造的光电传感器采用生物功能单元作为设备的核心。研究发现，通过照射由栅极上重组 PSI 组成的分子复合物产生的光电子可以控制 FET。这种 PSI 生物光电传感器可用于解释图像中的渐变。此外，该 PSI-FET 系统足够稳定，可使用超过 1 年。
We report on the first successful output of electrons directly from photosystem I (PSI) of thermophilic cyanobacteria to the gate of a field-effect transistor (FET) by bypassing electron flow via a newly designed molecular wire, i.e., artificial vitamin K1, and a gold nanoparticle; in short, this newly manufactured photosensor employs a bio-functional unit as the core of the device. Photo-electrons generated by the irradiation of molecular complexes composed of reconstituted PSI on the gate were found to control the FET. This PSI-bio-photosensor can be used to interpret gradation in images. This PSI-FET system is moreover sufficiently stable for use exceeding a period of 1 year.