相关实验视频

Updated: Jul 21, 2026

Colorimetric Paper-based Detection of Escherichia coli, Salmonella spp., and Listeria monocytogenes from Large Volumes of Agricultural Water

Colorimetric Paper-based Detection of Escherichia coli, Salmonella spp., and Listeria monocytogenes from Large Volumes of Agricultural Water

Published on: June 9, 2014

基于纸张的SERS芯片用于快速检测锡兰

Wei Lin¹, Zesong Liu¹, Jingwen Zhang¹

¹MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|February 2, 2025

概括

研究人员开发了一种用于聚合银纳米粒子 (a-AgNPs) 的简单方法. 这些纳米粒子使得一个方便的基于纸张的传感器能够使用表面增强的拉曼散射 (SERS) 来检测蒂拉姆.

科学领域:

纳米技术纳米技术
分析化学分析化学
材料科学材料科学材料科学

背景情况:

开发敏感和便携式检测方法对于各种分析应用至关重要.
银纳米粒子提供独特的光学特性,由于局部表面等离子体共振 (LSPR).
表面增强拉曼散射 (SERS) 是一种用于微量分子检测的强大技术.

研究的目的:

开发一种简单的,一制方法,用于制备带正电荷的聚合银纳米粒子 (a-AgNPs).
使用合成的a-AgNPs制造纸质SERS芯片.
为了展示一个方便的SERS传感器来检测thiram.

主要方法:

采用一合成策略,创建带正电荷的聚合银纳米粒子.
a-AgNP的特点是它们的光学特性,特别是LSPR吸收.
纸质SERS芯片是通过将a-AgNPs过到负电荷的膜上来制造的.
一个手持式拉曼光谱仪 (785 nm) 用于提拉姆的检测.

主要成果:

合成的a-AgNP表现出强大的LSPR吸收能力,可调整为常见的SERS激光波长.
a-AgNPs已经成功地集成到纸质SERS芯片中.
一个方便的SERS传感器被建立起来用于探测蒂拉姆.

结论:

开发的单方法为正电荷聚合银纳米粒子提供了一个简单的途径.
制造的基于纸张的SERS芯片对于敏感的西拉姆检测是有效的.
这种方法为便携和方便的SERS传感应用提供了一个有前途的平台.

关键词:

聚合的AgNP是什么纸质芯片是基于纸质的芯片.有正电荷的正电荷.这就是 SERS SERS.提拉姆 (Thiram) 的意思是提拉姆.

更多相关视频

A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants

A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants

Published on: February 19, 2016

Author Spotlight: Development and Application of SERS Flexible Substrates Using Synthesized AgNPs

Author Spotlight: Development and Application of SERS Flexible Substrates Using Synthesized AgNPs

Published on: November 17, 2023

相关概念视频

iChip

iChip

The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...