A portable AIEgen-based organic fluorescence sensor design and its reusable application in information storage and pH detection

被引：3

作者：

Ding, Ge ^{[1
]}

Wang, Xinchao ^{[2
]}

Zhao, Wenhui ^{[2
]}

Mao, Shen ^{[2
]}

Wang, Juan ^{[2
]}

Kang, Shouting ^{[2
]}

Meng, Jiangping ^{[1
]}

Liu, Hongpan ^{[1
]}

Yang, Heshan ^{[1
]}

Liang, Shuting ^{[1
]}

机构：

[1] Chongqing Univ Arts & Sci, Coll Chem & Environm Engn, Chongqing Key Lab Environm Mat & Remediat Technol, Yongchuan 402160, Peoples R China

[2] Heze Univ, Coll Pharm, Heze 274015, Shandong, Peoples R China

来源：

TETRAHEDRON | 2021年 / 92卷

关键词：

AIE; Fluorescence sensor; pH detection; Information storage; Cell imaging; AGGREGATION-INDUCED EMISSION; INTRAMOLECULAR PROTON-TRANSFER; PROBE; NANOPARTICLES; DERIVATIVES; WAVELENGTH; MECHANISM; STRATEGY; SHIFT; DYE;

D O I：

10.1016/j.tet.2021.132258

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The real time pH monitoring is crucial for human body health and environmental protection. In this work, a triphenylamine-conjugated TPA-SA (triphenylamine (TPA) and salicylaldehyde (SA)) with ESIPT segment was successfully designed, synthesized and further applied in pH detection bearing larger Stoke shift. Optical properties indicated that the sensor TPA-SA displayed obvious AIE (aggregation induced emission) phenomenon in DMSO/H2O (1/1, v/v) mixed solution, nano-scaled granular-like aggregates of TPA-SA could be obtained through scanning electron microscope images (SEM) and dynamic light scattering (DLS). It was worth mentioning that TPA-SA showed excellent fluorescence reaction to changes in pH, and pKa was calculated to be 4.75. In addition, due to its special optical properties, the further practical application of sensor TPA-SA was successfully conducted in pH sensing strips, information storage and the fluorescence cell imaging in HeLa cells, which may be commercially used in near further. (C) 2021 Elsevier Ltd. All rights reserved.

引用

页数：10

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