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未修饰的金纳米粒子介导的全脂牛奶中三聚氰胺的快速检测

Rapid detection of melamine in whole milk mediated by unmodified gold nanoparticles.

作者信息

Wei Fang, Lam Robert, Cheng Stacy, Lu Steven, Ho Dean, Li Na

出版信息

Appl Phys Lett. 2010 Mar 29;96(13):133702. doi: 10.1063/1.3373325. Epub 2010 Mar 30.

DOI:10.1063/1.3373325
PMID:20428252
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2859078/
Abstract

A strategy for rapid and facile detection of melamine in food and other substances is described. Unmodified gold nanoparticles enable a colorimetric signal output that is amplified through integration by precipitation formation via a chemical component specific to melamine. The sensitivity was determined to be approximately 40 ppb with a two standard deviation cutoff.

摘要

本文描述了一种快速简便地检测食品和其他物质中三聚氰胺的策略。未修饰的金纳米颗粒能够产生比色信号输出，该信号通过三聚氰胺特有的化学成分形成沉淀进行整合而得到放大。经测定，灵敏度约为40 ppb，以两倍标准差为临界值。

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