近日，我院刘瑞源老师以通讯作者身份Polymer Chemistry杂志上以全文形式发表了一篇题为“Thiourea-functionalized poly(phenyleneethynylene): fluorescent chemosensors for anions and cations”的研究论文。该研究表明含硫脲的聚（亚苯基亚乙炔基）可以作为氟离子或者银离子的传感器，并且聚合物和银离子组成的传感器可以用来荧光检测ADP。Polymer Chemistry杂志2012年影响因子为5.23，为化学类一区杂志。该论文受到国家自然科学基金等项目的资助。

Polymer Chemistry, 2013, 4, 4126~4133
Thiourea-functionalized poly(phenyleneethynylene):fluorescent chemosensors for anions and cations
Xue Yong, Wen Wan, Mingjian Su, Wenwei You, Xinwei Lu, Yichen Yan, Jinqing Qu, Ruiyuan Liu and Toshio Masuda
Abstract
A novel poly(phenyleneethynylene) containing thiourea groups [poly(1)] was synthesized. The anion sensing ability of poly(1) was assessed using tetra-n-butylammonium (TBA) salts of a series of anions in DMF. The addition of F– changed the color of the polymer solution in DMF from yellow to orange and quenched the fluorescence, whereas the visible color and fluorescence of the solution only varied slightly upon the addition of Cl–, HSO4–, Br–, CH3COO–, C6H5COO–, and NO3–; this indicates that poly(1) exhibits an F– sensing ability. 1H NMR titrations of poly(1) revealed that the colorimetric and fluorescent response of poly(1) is triggered by thiourea/F– hydrogen bonding. Poly(1) also exhibited a turn-off fluorescence Ag+ sensing ability. The addition of Ag+ quenched the fluorescence of the polymer, while the addition of Pb2+, Zn2+, Cu2+, Mn2+, K+, Na+, and Co2+ resulted in only slight changes to the fluorescence. The sensor containing poly(1) and Ag+ shows a turn-on fluorescence adenosine diphosphate (ADP) sensing ability.