【摘要】 以十二烷基硫酸钠作为乳化剂,在超声辐射作用下,磷光体1-溴-2-(3-丁烯基)萘和甲基丙烯酸发生共聚,形成生物兼容性的聚甲基丙烯酸基纳米磷光探针。粒径分布在(40±10)nm的探针大约85%。该纳米探针具有很好的水溶性,在溶解氧存在下,产生较强的磷光发射信号。铜离子对磷光信号具有较好的选择性猝灭作用,检出限在10-7mol/L水平,可望用于生物条件下的铜离子传感。更多还原

【Abstract】 Using SDS as an emulsion reagent, 1- bromo- 2- (3- butenyl) naphthalene and methacrylic acid are copolymerized by ultrasonic radiation to form phosphorescent poly (methacrylic acid) nanoprobes which have good biological compatibility and water solubility. Approximately 85% of the probes are in the 30～ 50 nm size range. The probes can emit strong room temperature phosphorescence in the presence of dissolved oxygen, which can be selectively quenched by copper ion. Thus, the probes can be used for copper ion sensing under biological condition and the limit of detection is 10- 7 mol/L.更多还原