Ratiometric fluorescent nanosensor for dosage-sensitive visual discrimination of glucose based on electron transfer mechanism

Zhang, Na; Shen, Yujun; Pang, Gaozong; Chu, Suyun; Han, Weiping; Mei, Qiong; Hu, Xinlong; Dong, Fengqi; Shen, Yujun; Zhao, Tingting

doi:10.1016/j.microc.2020.105188

Cited by 7 publications

(2 citation statements)

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“…As a promising alternative to traditional fluorescent dyes, various quantum dots (QDs) have been explored for glucose detection, including Mg/N-doped carbon QDs (Mg–N-CQDs) [ 71 ], carbon dots combined with CdTe QDs [ 72 ], silica-coated quantum dot (QD@SiO 2 ) [ 73 ], and cesium-doped graphene QDs (Cs-GQDs) [ 74 ]. A dual-emission ratiometric fluorescence probe was constructed through the combination of fluorescein isothiocyanate (FITC) and QD@SiO 2 [ 73 ]. Under the catalysis of GOx, the oxidation product H 2 O 2 of glucose oxidized Fe 2+ to Fe 3+ ion, resulting in the emission quenching of FITC (Fig.…”

Section: Enzyme-based Sensing Platformmentioning

confidence: 99%

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Sensitive and specific detection of saccharide species based on fluorescence: update from 2016

Huang

Han

et al. 2023

Anal Bioanal Chem

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Increasing evidence supports the critical role of saccharides in various pathophysiological steps of tumor progression, where they regulate tumor proliferation, invasion, hematogenic metastasis, and angiogenesis. The identification and recognition of these saccharides provide a solid foundation for the development of targeted drug preparations, which are however not fully understood due to their complex and similar structures. In order to achieve fluorescence sensing of saccharides, extensive research has been conducted to design molecular probes and nanoparticles made of different materials. This paper aims to provide in-depth discussion of three main topics that cover the current status of the carbohydrate sensing based on the fluorescence sensing mechanism, including a phenylboronic acid-based sensing platform, non-boronic acid entities, as well as an enzyme-based sensing platform. It also highlights efforts made to understand the recognition mechanisms and improve the sensing properties of these systems. Finally, we present the challenge of achieving high selectivity and sensitivity recognition of saccharides, and suggest possible future avenues for exploration. Graphical Abstract

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Section: Enzyme-based Sensing Platformmentioning

confidence: 99%

“…16 Illustration of visual glucose determination by quenching green emission of ratiometric fluorescent probe via H 2 O 2 -induced oxidation of Fe 2+ . Reproduced with permission [ 73 ]. Copyright 2020, Elsevier …”

Section: Enzyme-based Sensing Platformmentioning

confidence: 99%