作者:Inês F. A. Mariz、Sandra Pinto、João Lavrado、Alexandra Paulo、José M. G. Martinho、Ermelinda M. S. Maçôas
DOI:10.1039/c7cp00455a
日期:——
against diseases like malaria. The biological activity of drugs is routinely investigated using fluorescence based methods. However, recent reports show that the photophysics of CRYPT and its analogues is not yet understood. Herein, the photophysics of CRYPT and QUIND is studied in aqueous solutions at different pH values and in both protic and aprotic solvents of different polarities. CRYPT and QUIND are
喹啉(QUIND,吲哚[3,2- b ]喹啉)和隐山平(CRYPT,5-methyl-10 H -indolo [3,2- b[喹啉]及其相应的衍生物已被研究了数十年,因为它们对诸如疟疾的疾病具有重要的生物活性。通常使用基于荧光的方法来研究药物的生物学活性。但是,最近的报道表明,对CRYPT及其类似物的光物理性尚不了解。在此,研究了在不同pH值的水溶液中以及在极性不同的质子和非质子溶剂中对CRYPT和QUIN的光物理性质。已显示CRYPT和QUIND以不同的质子形式存在,具体取决于pH和溶剂极性。发现CRYPT对溶剂性质更敏感。两种化合物均显示具有双光子激发发射。在710-960 nm范围内测量了它们的双光子吸收(TPA)截面。