University of Oulu

Li, X., Wang, X., Liu, J., Dai, M., Zhang, Q., Li, Y., & Huang, J.-A. (2022). Surface-enhanced Raman spectroscopy detection of organic molecules and in situ monitoring of organic reactions by ion-induced silver nanoparticle clusters. Physical Chemistry Chemical Physics, 24(5), 2826–2831. https://doi.org/10.1039/D1CP04857K

Surface-enhanced Raman spectroscopy detection of organic molecules and in situ monitoring of organic reactions by ion-induced silver nanoparticle clusters

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Author: Li, Xiaoyue1; Wang, Xiaotong2; Liu, Jiaxin2;
Organizations: 1College of Chemistry and Chemical Engineering, Guizhou University, No. 2708, South Section of Huaxi Avenue, Guiyang City, Guizhou Province, China
2College of Pharmacy, Harbin Medical University, No. 157, Health Road, Nangang District, Harbin City, Heilongjiang Province, China
3Faculty of Medicine, Faculty of Biochemistry and Molecular Medicine, University of Oulu, 2125B, Aapistie 5A, 90220 Oulu, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe2022032925885
Language: English
Published: Royal Society of Chemistry, 2022
Publish Date: 2022-12-23
Description:

Abstract

Surface-enhanced Raman spectroscopy (SERS) finds wide applications in the field of organic molecule detection. However, reliable SERS detection of organic molecules and in situ monitoring of organic reactions under natural conditions by metal colloids are still challenging due to the formation of unstable nanoparticle clusters in solution and the low solubility of the organic molecules. Here, we approach the problems by introducing calcium ions to aggregate silver nanoparticles to form stable hot spots and acetone to promote uniform distribution of organic molecules on the nanoparticle surface. Significantly, our method exhibits stable SERS detection of up to 6 types of organic molecules in liquid. With acetone signals as an internal standard, we are able to determine molecule concentrations as well as monitor 3 kinds of organic reactions in situ. Our method shows potential for biomedical analysis, environmental analysis, and organic catalysis research.

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Series: PCCP. Physical chemistry chemical physics
ISSN: 1463-9076
ISSN-E: 1463-9084
ISSN-L: 1463-9076
Volume: 24
Issue: 3
Pages: 2826 - 2831
DOI: 10.1039/d1cp04857k
OADOI: https://oadoi.org/10.1039/d1cp04857k
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
116 Chemical sciences
Subjects:
Funding: This work was financially supported by the National Natural Science Foundation of Guizhou University (201908 Special Post A). This research is connected to the DigiHealth-project, a strategic profiling project at the University of Oulu. The project is supported by the Academy of Finland (project number 326291) and the University of Oulu.
Academy of Finland Grant Number: 326291
Detailed Information: 326291 (Academy of Finland Funding decision)
Copyright information: This journal is © the Owner Societies 2022.