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Ratiometric fluorescence and smartphone-assisted sensing platform based on dual-emission carbon dots for brilliant blue detection.
Liu, Lizhen; Chen, Meng; Zhao, Ting; Yuan, Lin; Mi, Zhi; Bai, Yunfeng; Fei, Peng; Liu, Zhixiong; Li, Caiqing; Wang, Ligang; Feng, Feng.
Afiliación
  • Liu L; Shanxi Datong University, Datong 037009, PR China.
  • Chen M; Shanxi Datong University, Datong 037009, PR China.
  • Zhao T; Shanxi Datong University, Datong 037009, PR China.
  • Yuan L; Shanxi Normal University, Taiyuan 030032, PR China.
  • Mi Z; Shanxi Datong University, Datong 037009, PR China. Electronic address: mizhi775@126.com.
  • Bai Y; Shanxi Datong University, Datong 037009, PR China.
  • Fei P; Shanxi Datong University, Datong 037009, PR China.
  • Liu Z; Shanxi Datong University, Datong 037009, PR China.
  • Li C; Shanxi Datong University, Datong 037009, PR China.
  • Wang L; Shanxi Datong University, Datong 037009, PR China.
  • Feng F; Shanxi Datong University, Datong 037009, PR China; Shanxi Normal University, Taiyuan 030032, PR China. Electronic address: feng-feng64@263.net.
Spectrochim Acta A Mol Biomol Spectrosc ; 322: 124782, 2024 Dec 05.
Article en En | MEDLINE | ID: mdl-38991616
ABSTRACT
In this study, an innovative ratiometric fluorescence and smartphone-assisted visual sensing platform based on blue-yellow dual-emission carbon dots (BY-CDs) was constructed for the first time to determine brilliant blue. The BY-CDs was synthesized via a facile one-step hydrothermal process involving propyl gallate and o-phenylenediamine. The synthesized BY-CDs exhibit favorable water solubility and exceptional fluorescence stability. Under excitation at 370 nm, BY-CDs show two distinguishable fluorescence emission bands (458 and 558 nm). Upon addition of brilliant blue, the fluorescence intensity at 558 nm exhibited a significant quenching effect attributed to fluorescence resonance energy transfer (FRET), while the fluorescence intensity at 458 nm was basically unchanged. The prepared BY-CDs can effectively serve as a ratiometric nanosensor for determining brilliant blue with the ratio of fluorescence intensities at 458 and 558 nm (F458/F558) as response signal. In addition, the developed ratiometric fluorescence sensor exhibits a noticeable alteration in color from yellow to green under UV light with a wavelength of 365 nm upon addition of varying concentrations of brilliant blue, which provides the possibility of visual detection of brilliant blue by a smartphone application. Finally, the BY-CDs based dual-mode sensing platform successfully detected brilliant blue in actual food samples and achieved a desirable recovery rate. This study highlights the merits of fast, convenient, economical, real-time, visual, high accuracy, excellent precision, good selectivity and high sensitivity for brilliant blue detection, and paves new paths for the monitoring of brilliant blue in real samples.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc Asunto de la revista: BIOLOGIA MOLECULAR Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc Asunto de la revista: BIOLOGIA MOLECULAR Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido