合成和表征了L-半胱氨酸修饰的ZnS纳米粒子. 采用紫外光谱法、荧光光谱法、傅立叶衰减全反射红外光谱法(FTIR-ATR)研究了PBS缓冲体系中L-半胱氨酸修饰的ZnS纳米粒子与牛血红蛋白(Bovine Hemoglobin,BHb)的相互作用. 结果表明,L-半胱氨酸修饰的ZnS纳米粒子与BHb有较强的作用,BHb能使修饰后的ZnS纳米粒子发生荧光猝灭现象. 根据Stern-Volmer方程计算得到猝灭常数为1.12×106 L/mol. L-半胱氨酸修饰的ZnS纳米粒子很大程度上影响BHb的二级结构,使其构象发生变化.
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