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Poly(pyridinium) salts containing calix[4]arene segments in the main chain as potential biosensors
來(lái)源:曾憲順研究員個(gè)人網(wǎng)站 發(fā)布日期:2011-09-25
作者:Yan Lu, Changchun Xiao, Zhufang Yu, Xianshun Zeng, Yi Ren and Chenxi Li
關(guān)鍵字:Calixarene, polymer, DNA,sensor
論文來(lái)源:期刊
具體來(lái)源:J. Mater. Chem., 2009, 19, 8796–8802
發(fā)表時(shí)間:2009年

Novel poly(pyridinium) salts 4 were synthesized by polycondensation of 4,40-(1,4-phenylene)bis(2,6-diphenylpyrylium tetrafluoroborate) with calix[4]arene diamines for the purpose of biosensing to meet the shape adaptability with the secondary structures of biological macromolecules. The polymers were characterized by NMR, FT-IR, elemental analysis, inherent viscosity, gel permeation chromatography (GPC), differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), and wide-angle X-ray diffraction. Both the absorption and photoluminescence (PL) spectra of the polymers were also studied. Moreover, the interactions between polymer 4b and Pseudomonas fluorescens DNA were investigated primarily by a fluorescent titration method and transmission electron microscopy (TEM).

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