Naked-Eye Detection of Morphine by Au@Ag Nanoparticles-Based Colorimetric Chemosensors

被引：22

作者：

Rohani Bastami, Tahereh ^{[1
]}

Bayat, Mansour ^{[1
]}

Paolesse, Roberto ^{[2
]}

机构：

[1] Quchan Univ Technol, Dept Chem Engn & Energy, Quchan 9477167335, Iran

[2] Univ Roma Tor Vergata, Dept Chem Sci & Technol, Via Ric Sci 1, I-00133 Rome, Italy

来源：

SENSORS | 2022年 / 22卷 / 05期

关键词：

ultrasonic irradiation; morphine; Au@Ag NPs; colorimetric method; naked eye detection; chemosensor; SILVER NANOPARTICLES; SONOCHEMICAL SYNTHESIS; GREEN SYNTHESIS; QUANTUM DOTS; GOLD NANOPARTICLES; GAS-CHROMATOGRAPHY; GRAPHENE OXIDE; NANOSENSOR; REDUCTION; AGGREGATION;

D O I：

10.3390/s22052072

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this study, we report a novel and facile colorimetric assay based on silver citrate-coated Au@Ag nanoparticles (Au@AgNPs) as a chemosensor for the naked-eye detection of morphine (MOR). The developed optical sensing approach relied on the aggregation of Au@Ag NPs upon exposure to morphine, which led to an evident color variation from light-yellow to brown. Au@Ag NPs have been prepared by two different protocols, using high- and low-power ultrasonic irradiation. The sonochemical method was essential for the sensing properties of the resulting nanoparticles. This facile sensing method has several advantages including excellent stability, selectivity, prompt detection, and cost-effectiveness.

引用

页数：19

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