摘要：研究了两亲性抗癌光敏剂磺基邻苯二甲酰亚胺甲基酞菁锌 ( Zn Pc SP)单体与聚集体的可见吸收光谱特征以及溶剂组成对其聚集平衡的影响 ,得到了 Zn Pc SP在一系列溶剂中的聚集平衡常数 .进而研究了存在状态对 Zn Pc SP的 S1 80 肿瘤抑瘤率的影响 .Zn Pc SP在生理盐水中主要以三聚体形式存在 ,而在 CEL溶液中 ,则主要以单体形式存在 ,后者对 S1 80的抑瘤率是前者的

摘要：A new type of fiber optic glucose biosensor based on fluorescence quenching has been designed and its properties have been studied. Glucose can be oxidized by oxygen when glucose oxidase are used as the catalyst, therefore, the concentration of glucose can be measured by detecting the consumption of oxygen. For the detection of oxygen concentration, the ruthenium(Ⅱ) complex, Ru(bpy)3Cl2, were used as the fluorescence indicator and its fluorescence lifetime were detected by lock-in technology. The detecting range of the sensor is 50 - 500 mg/dl and its response time is 30 seconds, showing that this kind of sensors is possible to be used in clinical diagnosis and detection.