聚集导致的荧光增强与双分子膜上能量转移

聚集导致的荧光增强与双分子膜上能量转移吴立新，郑惠（吉林大学理论化学研究所，长春，１３００２３）（吉林粮油食品专科学校）梁映秋（南京大学化学系）关键词聚集，双分子膜，荧光增强，能量转移在模拟生物膜功能研究中，以表面活性剂聚集体系为模拟剂研究其自组织行...

Fluorescence Enhancing and Energy Transfer on Bimolecular Layer Induced by Aggregation

Single chain benzalaniline containing ammonium amphiphiles formed vesicle bilayers in the aqueous solution. Being a kind of chromphore,the benzalaniline group embeded in amphiphiles is active for absorption and fluorescence, No very strong excitation and emission intensities were determined in ethanol dispersion, but the phenomenon was found in the aqueous solution,that is tight aggregation of bimolecular layer induced fluorescence enhancing.The reason is that the tight aggregation made the molecule arrangement orderly so that little excitation energy was exhausted by nonradiative transfers such as thermal collision, conformation divert and so on.This process is very favorable for energy transfer because it was not observed in liquid crystal state and in ethanol dispersion.The result reveals that more orderly arrangement of amphiphiles in bilayers is benefit to controlling energy transfer and increasing the transfer effect across membranes.