Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

262
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
262
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

241
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
241

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

ROS-responsive dimeric prodrug-based nanomedicine targeted therapy for gastric cancer.

Drug delivery·2021
Same author

Three-Coordinate Pd(0) with Rare-Earth Metalloligands: Synergetic CO Activation and Double P-C Bond Cleavage-Formation Reactions.

Inorganic chemistry·2021
Same author

Numerical Analysis of Particulate Migration Behavior within Molten Pool during TIG-Assisted Droplet Deposition Manufacturing of SiC Particle-Reinforced Aluminum Matrix Composites.

Materials (Basel, Switzerland)·2021
Same author

Comparison of Allogeneic Stem Cell Transplant and Autologous Stem Cell Transplant in Refractory or Relapsed Peripheral T-Cell Lymphoma: A Systematic Review and Meta-analysis.

JAMA network open·2021
Same author

Fucosyltransferase 8 regulation and breast cancer suppression by transcription factor activator protein 2γ.

Cancer science·2021
Same author

Biodegradable BiOCl platform for oxidative stress injury-enhanced chemodynamic/radiation therapy of hypoxic tumors.

Acta biomaterialia·2021

相关实验视频

Updated: May 11, 2025

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
07:44

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems

Published on: April 28, 2016

15.0K

超越间隙限制的电磁拉曼增强

Qi-Hang Zhang1,2,3,4, Kai Liu1,5, Kang Qin1,2,3,4

  • 1Nanjing University, National Laboratory of Solid State Microstructures, and Collaborative Innovation Center of Advanced Microstructures, Nanjing, 210093, China.

Physical review letters
|April 18, 2025
PubMed
概括

表面增强拉曼散射 (SERS) 现在可以使用电极多极和束状态检测微量分析物和大分子. 这一突破提高了检测极限,并为轻物质相互作用开辟了新的途径.

更多相关视频

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems
09:57

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems

Published on: February 10, 2020

7.1K
Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy
15:04

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy

Published on: May 18, 2011

13.0K

相关实验视频

Last Updated: May 11, 2025

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
07:44

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems

Published on: April 28, 2016

15.0K
Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems
09:57

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems

Published on: February 10, 2020

7.1K
Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy
15:04

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy

Published on: May 18, 2011

13.0K

科学领域:

  • 纳米光子学 纳米光子学
  • 塑制剂是一种塑制剂.
  • 频谱学是一种光谱学.

背景情况:

  • 表面增强拉曼散射 (SERS) 对于痕迹级检测至关重要,提供独特的分析指纹信息.
  • 目前的SERS方法受到电偶极增强机制的限制,阻碍了对宏分子的检测和进一步改进增强因子.

研究的目的:

  • 为了克服SERS中电偶极增强的局限性.
  • 探索在连续体中使用电极多极,无极极状态和束状态来增强检测.
  • 为了使大分子的检测,并提高增强因子.

主要方法:

  • 利用电极多极和无极极状态来限制现场.
  • 利用连续体 (BIC) 中的束状态来增强光物相互作用.
  • 研究数组结构中空隙大小对增强因子和分子检测的影响.

主要成果:

  • 获得了1012的增强因子.
  • 能够检测大于100nm的分子.
  • 通过多极和BIC国家,在时间和空间上对场域的限制进行了证明.

结论:

  • 该研究引入了一种新的方法,使用电动多极和BIC状态来显著提高SERS性能.
  • 这种方法克服了以前的局限性,允许检测大型分子并实现超高的增强因子.
  • 这些发现为先进的SERS应用和其他光物质相互作用,如光催化和量子光学铺平了道路.