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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Yang, Jin Li, Zonglong Chen, Yufeng Zhuang, Zhiping Li, Ran Zhao, Bing Ruan, Weidong |
| Description | Country affiliation: China Author Affiliation: Chen Y ( State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China); Yang J ( State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China.); Li Z ( State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China.); Li R ( State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China.); Ruan W ( State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China. Electronic address: ruanwd@jlu.edu.cn.); Zhuang Z ( College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang 157012, China.); Zhao B ( State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China.) |
| Abstract | Raman spectroscopy, surface-enhanced Raman spectroscopy (SERS) and density functional theory (DFT) simulations were employed to study 5-amino-2-mercaptobenzimidazole (5-A-2MBI) molecules. Ag colloids were used as SERS substrates which were prepared by using hydroxylamine hydrochloride as reducing agent. Raman vibration modes and SERS characteristic peaks of 5-A-2MBI were assigned with the aid of DFT calculations. The molecular electrostatic potential (MEP) of 5-A-2MBI was used to discuss the possible adsorption behavior of 5-A-2MBI on Ag colloids. The spectral analysis showed that 5-A-2MBI molecules were slightly titled via the sulfur atoms adhering to the surfaces of Ag substrates. The obtained SERS spectral intensity decreased when lowering the 5-A-2MBI concentrations. A final detection limit on the concentration of 5×10(-7) mol · L(-1) was gained. SERS proved to be a simple, fast and reliable method for the detection and characterization of 5-A-2MBI molecules. |
| ISSN | 13861425 |
| Volume Number | 153 |
| e-ISSN | 18733557 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-01-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Benzimidazoles Chemistry Models, Molecular Quantum Theory Spectrum Analysis, Raman Adsorption Colloids Molecular Conformation Silver Solutions Spectrophotometry, Ultraviolet Static Electricity Time Factors Journal Article Research Support, Non-u.s. Gov't Discipline Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Atomic and Molecular Physics, and Optics Analytical Chemistry Instrumentation |
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