Han Jinsong, Bender Markus, Hahn Sebastian, Seehafer Kai, Bunz Uwe H F
Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.
Center of Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany.
Chemistry. 2016 Mar 1;22(10):3230-3233. doi: 10.1002/chem.201504447. Epub 2016 Jan 27.
One fluorescent, positively charged poly(para-phenyleneethynylene) (PAE 1) forms electrostatic complexes with five negatively charged pyridine- or benzothiadiazole-containing poly(para-aryleneethynylene)s (PAE 2-PAE 6). The PAE 2-PAE 6 are less fluorescent in water and act as quenchers for PAE 1 in their electrostatic complexes C 1-C 5; the PAE-complexes (2 μm) were exposed to thirteen different carboxylic acids (50 mm) in buffered aqueous solution. The fluorescence responses of the small library of electrostatic PAE-complexes towards the acids was analyzed; discrimination of all of the thirteen acids was achieved. The investigated acids include acetic, butyric, tartaric, maleic, lactic, sorbic, oxalic, aspartic, and citric acids. A random, simple, ad-hoc library of electrostatic polymer complexes, C 1-C 5, therefore discerns the thirteen carboxylic acids in water.
一种带正电荷的荧光聚对苯撑乙炔（PAE 1）与五种带负电荷的含吡啶或苯并噻二唑的聚对亚芳基乙炔（PAE 2 - PAE 6）形成静电复合物。PAE 2 - PAE 6在水中的荧光较弱，在其静电复合物C 1 - C 5中作为PAE 1的猝灭剂；将PAE复合物（2μm）在缓冲水溶液中暴露于13种不同的羧酸（50mm）。分析了静电PAE复合物小文库对这些酸的荧光响应；实现了对所有13种酸的区分。所研究的酸包括乙酸、丁酸、酒石酸、马来酸、乳酸、山梨酸、草酸、天冬氨酸和柠檬酸。因此，一个随机、简单、临时构建的静电聚合物复合物文库C 1 - C 5能够区分水中的13种羧酸。
