Your browser doesn't support javascript.
loading
Fluorescent probe based on GO/g-C3N4-PEG@Cu NPs/MIP for the detection of dopamine in banana.
Wang, Yaru; Pang, Chaohai; Ma, Xionghui; Wang, Mingyue; Wu, Xiaopeng; Liu, Sixin; Li, Shuhuai.
Afiliación
  • Wang Y; Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Key Laboratory of Quality and Safety Control of Subtropical Fruits and Vegetables, Ministry of Agriculture and Rural Affairs, Haikou
  • Pang C; School of Food Science and Engineering, Hainan University, Haikou, China.
  • Ma X; Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Key Laboratory of Quality and Safety Control of Subtropical Fruits and Vegetables, Ministry of Agriculture and Rural Affairs, Haikou
  • Wang M; Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Key Laboratory of Quality and Safety Control of Subtropical Fruits and Vegetables, Ministry of Agriculture and Rural Affairs, Haikou
  • Wu X; Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Key Laboratory of Quality and Safety Control of Subtropical Fruits and Vegetables, Ministry of Agriculture and Rural Affairs, Haikou
  • Liu S; School of Food Science and Engineering, Hainan University, Haikou, China.
  • Li S; Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Key Laboratory of Quality and Safety Control of Subtropical Fruits and Vegetables, Ministry of Agriculture and Rural Affairs, Haikou
Luminescence ; 39(8): e4871, 2024 Aug.
Article en En | MEDLINE | ID: mdl-39143684
ABSTRACT
Graphene oxide (GO) and copper nanoparticles (Cu NPs) were incorporated to modulate and enhance the fluorescence properties of pegylated graphite phase carbon nitride (g-C3N4-PEG). Combined with the specific recognition capability of a molecular imprinted polymer (MIP), a highly sensitive and selective fluorescent molecular imprinted probe for dopamine detection was developed. The fluorescent g-C3N4-PEG was synthesized from melamine and modified with GO and Cu NPs to obtain GO/g-C3N4-PEG@Cu NPs. Subsequently, MIP was prepared on the surface of GO/g-C3N4-PEG@Cu NPs using dopamine as the template molecule. Upon elution of the template molecule, a dopamine-specific GO/g-C3N4-PEG@Cu NPs/MIP fluorescence probe was obtained. The fluorescence intensity of the probe was quenched through the adsorption of different concentrations of dopamine by the MIP, thus establishing a novel method for the detection of dopamine. The linear range of dopamine detection was from 5 × 10-11 to 6 × 10-8 mol L-1, with a detection limit of 2.32 × 10-11 mol L-1. The sensor was utilised for the detection of dopamine in bananas, achieving a spiked recovery rate between 90.3% and 101.3%. These results demonstrate that the fluorescence molecular imprinted sensor developed in this study offers a highly sensitive approach for dopamine detection in bananas.
Asunto(s)
Palabras clave

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Dopamina / Cobre / Musa / Nanopartículas del Metal / Colorantes Fluorescentes / Grafito Idioma: En Revista: Luminescence Asunto de la revista: BIOFISICA / BIOQUIMICA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Dopamina / Cobre / Musa / Nanopartículas del Metal / Colorantes Fluorescentes / Grafito Idioma: En Revista: Luminescence Asunto de la revista: BIOFISICA / BIOQUIMICA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido