An efficient sodium citrate-promoted synthetic method for the preparation of AuNPs@mesoSiO 2 for surface enhanced Raman spectroscopy in the detection of diluted blood
| Autor: | Nengbin Cai, Huang Xiaochun, Wenbin Liu, Xiaoliang Yuan, Xuejun Zhao, Zou Yun, Feiyu Yang, Ke Ma, Hui Li |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Scanning electron microscope Inorganic chemistry Nanoparticle 02 engineering and technology General Chemistry Mesoporous silica Surface-enhanced Raman spectroscopy 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences lcsh:Chemistry High surface chemistry.chemical_compound lcsh:QD1-999 chemistry Transmission electron microscopy Colloidal gold Sodium citrate 0210 nano-technology |
| Zdroj: | Journal of Saudi Chemical Society, Vol 21, Iss 8, Pp 1007-1012 (2017) |
| ISSN: | 1319-6103 |
| Popis: | We report on a novel, green, and efficient organically synthetic method for the preparation of gold nanoparticles embedded in mesoporous silica (AuNPs@mesoSiO2). AuNPs@mesoSiO2 prepared by one-pot synthesis method using sodium citrate as the key reactant was applied for surface enhanced Raman spectroscopy (SERS) application in the analysis of diluted blood traces. The synthesized nanoparticles are of high quality, as characterized by use of X-ray diffraction, scanning electron microscopy and transmission electron microscopy. They exhibit high surface areas (170.18â883Â m2/g) and significant SERS enhancement. Detection of diluted blood (v/v, 1:50) traces through AuNPs@mesoSiO2 enhanced SERS is demonstrated, which has not been studied in previous literature. The combination of the SERS and AuNPs@mesoSiO2 would be a valuable tool for forensic investigation. Keywords: Gold nanoparticles, Mesoporous materials, Synthesis, SERS, Blood trace |
| Databáze: | OpenAIRE |
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