Surface-enhanced Raman spectroscopy is a powerful analytical technique for the determination of analytes with the advantages of sensitivity, portability, and simplicity, able to provide structural information for the identification of compounds. However, when it comes to the analysis of complex samples, matrix components may interfere with the analyte quantification. To overcome this shortcoming, a number of approaches have been proposed, such as extraction techniques. Among them, the coupling of chromatography with surface-enhanced Raman spectroscopy seems to be promising. It allows combining the advantages of both techniques, i.e., high efficiency of chromatographic separation and high sensitivity of surface enhanced Raman scattering detection, and makes possible simultaneous quantification of multiple analytes. The review summarizes the latest achievements in the combination of these techniques.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11897286 | PMC |
http://dx.doi.org/10.3389/fchem.2025.1548364 | DOI Listing |
Adv Sci (Weinh)
March 2025
Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China.
Since its discovery in 1997, the single molecule surface-enhanced Raman spectroscopy (SM-SERS) has attracted wide interest owing to its enormous potential in many fields. However, the commercialized applications of SM-SERS are still limited by the lack of a clear understanding of the relevant mechanism in the famous SM-SERS experiments. In this study, a salt-gradient model is proposed to deeply investigate the physical nature and update insights into the morphological, structural, and component evolution processes of Ag NPs from dispersed nanostructures to aggregation states in the salt-induced aggregation SERS strategy.
View Article and Find Full Text PDFFront Chem
February 2025
Faculty of Material Sciences, Shenzhen MSU-BIT University, Shenzhen, China.
Surface-enhanced Raman spectroscopy is a powerful analytical technique for the determination of analytes with the advantages of sensitivity, portability, and simplicity, able to provide structural information for the identification of compounds. However, when it comes to the analysis of complex samples, matrix components may interfere with the analyte quantification. To overcome this shortcoming, a number of approaches have been proposed, such as extraction techniques.
View Article and Find Full Text PDFAnal Chim Acta
May 2025
Department of Nephrology, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, PR China. Electronic address:
The sensitive, efficient, and simultaneous assay of creatinine and urea in different body fluid is crucial for the daily detection and treatment of chronic kidney disease. Here, we exploited a versatile composite surface enhanced Raman scattering (SERS) substrate of polydimethylsiloxane (PDMS)-flower-like ZIF-67@Ag nanoparticles (NPs) based on simple in-situ growth and ion sputtering strategies. The plasmonic Ag NPs assembled on the three-dimensional anisotropic ZIF-67 matrix, facilitating numerous resonant electromagnetic "hotspots".
View Article and Find Full Text PDFNanoscale
March 2025
School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China.
Raman spectroscopy has demonstrated significant potential in molecular detection, analysis, and identification, particularly when it adopts single-molecule surface-enhanced Raman scattering (SM-SERS) substrates. A recent SM-SERS scheme incorporates two-fold Raman enhancement mechanisms: the electromagnetic enhancement enabled by a plasmonic nanogap hotspot formed from gold sphere nanoparticles sitting on a gold mirror and the chemical enhancement enabled by a two-dimensional material, WS, inserted into the nanogap. In this work we integrate multiple advanced concepts and techniques to achieve remarkable performance improvements of SM-SERS.
View Article and Find Full Text PDFSovrem Tekhnologii Med
March 2025
DSc, Professor, Department of Biophysics, Faculty of Biology; Lomonosov Moscow State University, 1 Leninskiye Gory, Moscow, 119991, Russia; Professor, Department of Physical Materials; National University of Science and Technology "MISIS", 4 Leninsky Prospect, Moscow, 119049, Russia.
Unlabelled: was to identify differences in the structure of the neuronal process network as well as the composition and functional state of cells by studying the bodies and processes of rat brain neurons and astrocytes obtained from pluripotent stem cells of healthy donors and patients with hereditary Parkinson's disease by using a complex of modern high-precision methods such as Raman microspectroscopy, surface-enhanced Raman microspectroscopy, and scanning ion-conductance microscopy.
Materials And Methods: By using Raman spectroscopy and scanning ion-conductance microscopy, the researchers studied the morphology and state of molecules in rat brain neurons and astrocytes induced from pluripotent stem cells of healthy donors and patients with hereditary Parkinson's disease.
Results: The researchers established that typical bands of Raman and surface-enhanced Raman spectra of neurons and astrocytes allowed studying the distribution and conformation of a series of biological molecules (proteins, lipids, cytochromes) in healthy and unhealthy states.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!