Colorimetric and Fluorometric Detection of Neomycin Based on Conjugated Polydiacetylene Supramolecules

被引：35
|
作者：
Zhou, Guodong [1 ]
Wang, Fang [1 ]
Wang, Huilin [1 ]
Kambam, Srinivasulu [1 ]
Chen, Xiaoqiang [1 ]
机构：
[1] Nanjing Univ Technol, State Key Lab Mat Oriented Chem Engn, Coll Chem & Chem Engn, Nanjing 210009, Jiangsu, Peoples R China
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2013年 / 34卷 / 11期
关键词：
colorimetric change; fluorescent sensors; neomycin; polydiacetylene supramolecules; LIPID/POLYDIACETYLENE VESICLES; MEMBRANE INTERACTIONS; PDA LIPOSOMES; FLUORESCENT; SENSORS; LIPOPOLYSACCHARIDE; AMINOGLYCOSIDES; ANTIBIOTICS; RECOGNITION; SURFACTANTS;
D O I：
10.1002/marc.201200837
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Utilizing the colorimetric and fluorogenic changes, a system based on polydiacetylenes (PDAs) is developed for the detection of neomycin. The PDA supramolecules polymerized from the mixed liposome composed of N-(3-hydroxyphenyl)pentacosa-10,12-diynamide (PCDA-AP) and pentacosa-10,12-diynoic acid (PCDA) at an optimized ratio of 1:9 display a unique colorimetric change (blue to red) and fluorescent enhancement in the presence of neomycin. The detection limit for neomycin is estimated to be 2.55 x 10-7 M by the fluorogenic method. The optical changes induced by neomycin can be attributed to the disruption of the hydrogen bonding between phenol and carboxylic acid from PCDA-AP and PCDA.
引用
收藏
页码：944 / 948
页数：5
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