【摘 要】
：
用荧光标记物1,8-ANS与细菌视紫红质结合,测得紫膜细菌视紫红质在能化态时的表面电位远大于非能化态时的对应值.在细菌视紫红质分子的激光四波混频实验中,应用激子表象理论,
【机 构】
：
华东师范大学物理系光谱学和波谱学教育部重点实验室,复旦大学生物物理系
论文部分内容阅读
用荧光标记物1,8-ANS与细菌视紫红质结合,测得紫膜细菌视紫红质在能化态时的表面电位远大于非能化态时的对应值.在细菌视紫红质分子的激光四波混频实验中,应用激子表象理论,获得了紫膜能化态时的激子饱和密度和激子长度,说明在bR-ANS络合物中,细菌视紫红质中色氨酸残基对ANS的激发能量转移效率提高,能化态时表面电荷密度增加,从而使非辐射共振转移变为激子转移,也证明了紫膜能化态时表面电位的非线性光学机制.
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