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BRD96N光调制吸收增强现象的实验研究

杨文正 侯洵 陈烽 杨青

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BRD96N光调制吸收增强现象的实验研究

杨文正, 侯洵, 陈烽, 杨青

Experimental study of enhancement of the light-modulated absorption of bacteriorhodopsin-D96N films

Yang Wen-Zheng, Hou Xun, Chen Feng, Yang Qing
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  • 通过光谱响应特性实验和记录/读出图像实验,研究了基因变异型细菌视紫红质(BRD96N)分子膜对单色光的光调制特性.发现BRD96N分子膜在550nm—600nm范围内对调制光有吸收增强的现象,且对此范围内不同波长的单色光其调制程度有差异.利用曲线拟和方法发现550nm—600nm吸收增强的变化过程分为快过程和慢过程,其对应的时间常数分别为30s和5min.利用强度调制器的吸收强度与图像灰度之间的关系,分析了560nm—600nm范围内出现图像反转的实验现象.
    In this paper, the light-modulated characteristics of the gene-variant bacteriorhodopsin-D96N molecule film are studied by spectrum response experiment. The absorption enhancement phenomena of BRD96N films at 550—600nm modulated light wavelength are gained, and there are different absorption changes at different monochromatic wavelengths. Using curve-fitting method, it is found that the process of the absorption change includes fast and slow responses with time constants of 30 s and 5 min respectively. Applying the relations between the absorption change and gray-scale image to the write-readout image experiment, the reverse image phenomena in a wavelength range of 550—600nm are analyzed.
    • 基金项目: 国家自然科学基金(批准号:69907006)和中国科学院创新方向性项目(批准号:KGCX2-401)资助的课题.
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  • 文章访问数:  6464
  • PDF下载量:  570
  • 被引次数: 0
出版历程
  • 收稿日期:  2003-01-03
  • 修回日期:  2003-05-08
  • 刊出日期:  2004-01-15

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