Synthesis of a series of ethylene glycol modified water-soluble tetrameric TPE-amphiphiles with pyridinium polar heads: Towards applications as light-up bioprobes in protein and DNA assay, and wash-free imaging of bacteria
作者:Vikash Kumar、Viraj G. Naik、Avijit Das、Sourayan Basu Bal、Malabika Biswas、Nupur Kumar、Anasuya Ganguly、Amrita Chatterjee、Mainak Banerjee
DOI:10.1016/j.tet.2019.05.044
日期:2019.7
Available online Development of water soluble AIE-active “light-up” bioprobes for the detection of biomacromolecules has drawn huge research interests in recent past. In this study, a series of ethylene glycol modified water soluble tetrameric tetraphenylethylene amphiphiles with pyridinium polar heads (TPE-xEG-Py, x = 3, 4, 6 or 1a-c) have been synthesized by varying the ethylene glycol spacer. Their
可以在线获取用于检测生物大分子的水溶性AIE活性“发光”生物探针的开发在最近几年引起了巨大的研究兴趣。在这项研究中,通过改变乙二醇间隔基,合成了一系列带有吡啶鎓极性头的乙二醇改性的水溶性四聚四苯基乙烯两亲物(TPE-xEG-Py,x = 3、4、6或1a-c)。它们独特的结构使它们能够在水溶液中形成囊泡和其他纳米聚集体。这些两亲物已成功用于基于静电相互作用的荧光检测和BSA和DNA的定量分析,从而触发了TPE部分的AIE发射。在革兰氏阴性菌(大肠杆菌)的免洗成像中,静电相互作用也被证明是非常有效的。)和革兰氏阳性(金黄色葡萄球菌)细菌,在细菌浓度为0–12×10 8 CFU mL -1的情况下,荧光响应增加多达92倍。由于具有成本效益且易于合成,高水溶性和快速响应,该策略是有利的。