羟基磺基甜菜碱表面活性剂与DNA相互作用研究
采用电导率、紫外光谱、粒度分析、Zeta电位以及荧光光谱等方法研究两种羟基磺基甜菜碱两性表面活性剂（HSB-12、HSB-14）与DNA的相互作用。结果表明：HSB-12/DNA体系和HSB-14/DNA体系的等电点范围为6~9；随着NaBr浓度增加，表面活性剂/DNA体系的透过率增加，粒径减小，微极性减小；与pH=8相比，pH=5时表面活性剂/DNA体系的透过率更高，粒径更小。
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