相关实验视频

Updated: Sep 15, 2025

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates

Published on: March 20, 2015

克服光干扰:使用SERS检测维生素B的"平面热点"基质

Liping Zhou^1,2, Jin Sun^1,2, Rongheng Ma³

¹State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Research Center for Innovative Technology of Pharmaceutical Analysis, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, PR China.

Analytical chemistry

|July 17, 2025

概括

我们开发了一种新的银纳米盘基板,以克服光干扰在检测维生素B分子使用表面增强拉曼散射 (SERS). 这种SERS平台能够进行敏感和准确的跟踪级分析.

科学领域:

分析化学分析化学
材料科学材料科学材料科学
生物技术是生物技术.

背景情况:

表面增强拉曼散射 (SERS) 为分子检测提供了高特异性.
通过SERS检测光维生素B分子是具有挑战性的,因为光干扰和弱拉曼信号.

研究的目的:

开发一种创新的SERS基质,用于灵敏地检测光维生素B分子.
为了克服光干扰和弱拉曼信号在维生素B检测中的局限性.

主要方法:

制造具有"平面热点"的大面积银纳米盘基板,以最大限度地提高热点的有效表面积.
利用平面热点来灭光和放大维生素B分子的拉曼信号.
整合机器学习算法用于模拟生物流体环境中的信号分析.

主要成果:

首次使用SERS检测出高度光的维生素B分子.
在模拟生物流体样本中成功检测了维生素B分子.
开发的基板有效地灭了光和增强了拉曼信号.

结论:

新的SERS平台为微量维生素B分析提供了精确,快速,可复制和非侵入的方法.
这项技术对食品,制药和人体样本的智能检测具有显著的前景.
"平面热点"设计是克服SERS应用中的光干扰的关键创新.

更多相关视频

Automated System for Single Molecule Fluorescence Measurements of Surface-immobilized Biomolecules

Automated System for Single Molecule Fluorescence Measurements of Surface-immobilized Biomolecules

Published on: November 2, 2009

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

相关概念视频

Labeling DNA Probes

Labeling DNA Probes

DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...

Super-resolution Fluorescence Microscopy

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...