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相关概念视频

Label-Free Surface-Enhanced Raman Scattering Bioanalysis Based on Au@Carbon Dot Nanoprobes06:19

Label-Free Surface-Enhanced Raman Scattering Bioanalysis Based on Au@Carbon Dot Nanoprobes

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In this study, we developed a low-cost surface-enhanced Raman scattering (SERS)-based fingerprint nanoprobe with favorable biocompatibility to show label-free live cell bioimaging and detect two bacterial strains, showing in detail how to get SERS spectra of living cells in a non-destructive...
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Direct Comparison of Hyperspectral Stimulated Raman Scattering and Coherent Anti-Stokes Raman Scattering Microscopy for Chemical Imaging09:46

Direct Comparison of Hyperspectral Stimulated Raman Scattering and Coherent Anti-Stokes Raman Scattering Microscopy for Chemical Imaging

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This paper directly compares the resolution, sensitivity, and imaging contrasts of stimulated Raman scattering (SRS) and coherent anti-Stokes Raman scattering (CARS) integrated into the same microscope platform. The results show that CARS has a better spatial resolution, SRS gives better contrasts and spectral resolution, and both methods have similar sensitivity.
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The protocol describes how to monitor electrochemical events on single nanoparticles using surface-enhanced Raman scattering spectroscopy and...
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We present a protocol to acquire chemical images with broadband stimulated Raman scattering (SRS) microscopy. Based on an SRS microscope that operates with differential multichannel-lock-in detection, the protocol describes the sample preparation, adjustment of the SRS apparatus, and chemometrics to disentangle different constituents of chemically heterogeneous...
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相关实验视频

Updated: Jan 20, 2026

Author Spotlight: Advancing SERS Technology: Au@Carbon Dot Nanoprobes for Label-Free Analysis and Imaging
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Author Spotlight: Advancing SERS Technology: Au@Carbon Dot Nanoprobes for Label-Free Analysis and Imaging

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开发选择性平面照明表面增强的拉曼散射光谱显微镜,以改善细胞成像.

Abigail E Smith1, Zachary D Schultz1,2

  • 1Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA.

Journal of Raman spectroscopy : JRS
|January 19, 2026
PubMed
概括

这项研究引入了选择性平面照明表面增强拉曼散射 (SPI-SERS) 光谱成像. 这种新的技术显著改善了复杂生物样本中SERS成像的对比度和信号噪声比率.

科学领域:

  • 生物光子学 生物光子学
  • 化学成像技术 化学成像技术
  • 频谱学是一种光谱学.

背景情况:

  • 光谱成像结合了空间和化学分析,但由于高背景和自光,在生物样本中面临着挑战.
  • 表面增强拉曼散射 (SERS) 为标记和监测化学相互作用提供了特定的信号.
  • 之前的SERS成像方法与高的背景作斗争,阻碍了在生物标本中清晰的信号检测.

研究的目的:

  • 开发一种最小化失焦散射的方法,以改进SERS光谱成像.
  • 增强图像对比度和信号噪声比率 (SNRs) 以在复杂的生物环境中进行 SERS 分析.
  • 通过使用SERS,在3D矩阵和细胞样本中实现分子识别.

主要方法:

  • 选择性平面照明显微镜 (SPIM) 与广场SERS光谱成像的整合.
  • 选择性平面照明表面增强拉曼散射 (SPI-SERS) 光谱成像的开发.
  • 使用光板仅照亮焦平面,减少失焦光.

主要成果:

  • 通过SPI-SERS的光谱成像,可以有效地减少失焦散射.
  • 观察到图像对比度和SNR的显著改善.
  • 在3D矩阵和生物细胞样本中成功识别了分子.

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Observation and Analysis of Blinking Surface-enhanced Raman Scattering
05:52

Observation and Analysis of Blinking Surface-enhanced Raman Scattering

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结论:

  • 在复杂的生物样本中,SPI-SERS光谱成像为高对比度SERS分析提供了强大的方法.
  • 该方法增强了SERS在生物系统内的详细分子调查的实用性.
  • 这一进步对未来生物研究和诊断领域的应用具有前景.