在胶束中竹红菌甲素的光物理特性

THE PHOTOPHYSICAL BEHAVIORS OF HYPOCRELLIN A IN MICELLES

研究了竹红菌甲素在胶束水溶液中的增溶能力及其光物理特性。实验证明,竹红菌甲素可以增溶于非离子型(TX-100),阳离子型(TDPB)和阴离子型(SDS)胶束水溶液中,增溶能力的顺序为:TX-100>TDPB>SDS。观察到在胶束中竹红菌甲素的两种互变异构体比例变化,在TDPB胶束中在高居占度条件下生成了基态相迂复合物,吸收峰位λ_(max)630nm,其对应的激基缔合物在荧光谱中出现在λ_(max)670nm处。

In this paper the solubilization and the photophysical properties of HA in micelles (Triton X-100, TDPB, SDS) were investigated. Experimental results proved that HA can be solu-bilized into different kind of micellar aqueous solution, the abilities of solubilization for HA are as showing:Triton X-100 > TDPB > SDSThe concentration of HA in the range of 10-5-10-4 mol/L in micelles can be easily prepared. It provided a condition to search for an excited state's behaviors of HA in aquenous system. The tautomerization of HA in micelles were observed at lower occupancy number and the enconter complex of HA at high occupancy number in ground state was formed in TDPB micelle at λmax 630nm, corresponding to λmax 670nm for an excimer of HA in excited state.