Synthesis of mesoporous-silica coated multi-branched gold nanoparticles for surface enhanced Raman scattering evaluation of 4-bromomethcathinone
Mesoporous silica-coated multi-branched gold nanoparticles (bAu@mesoSiO2) aiming for enhanced Raman sensing for 4-bromomethcathinone (4-BMC) detection is reported. In this work, we present an effective strategy to probe the Raman signal of 4-MBC. Morphologies and optical properties of the synthesize...
| Published in: | Journal of Saudi Chemical Society |
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| Main Authors: | , , , , , , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Springer
2019-03-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1319610318301388 |
| _version_ | 1848651741232365568 |
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| author | Yun Zou Hong Chen Yu Li Xiaoliang Yuan Xuejun Zhao Wei Chen Fangqi Cao Nengbin Cai Xiaochun Huang Feiyu Yang Wenbin Liu |
| author_facet | Yun Zou Hong Chen Yu Li Xiaoliang Yuan Xuejun Zhao Wei Chen Fangqi Cao Nengbin Cai Xiaochun Huang Feiyu Yang Wenbin Liu |
| author_sort | Yun Zou |
| collection | DOAJ |
| container_title | Journal of Saudi Chemical Society |
| description | Mesoporous silica-coated multi-branched gold nanoparticles (bAu@mesoSiO2) aiming for enhanced Raman sensing for 4-bromomethcathinone (4-BMC) detection is reported. In this work, we present an effective strategy to probe the Raman signal of 4-MBC. Morphologies and optical properties of the synthesized materials with different [Au3+]/[Au0] ratios are characterized utilizing transmission electron microscopy (TEM), UV–vis and mid-infrared spectroscopy. Both experimental and theoretical (simulation) studies were investigated. Taking advantages of gold core branches that provide highly localized and strongly enhanced electromagnetic fields due to plasmon resonance, surface-enhanced Raman scattering (SERS) is observed. The experimental results show that the SERS intensity exhibits a 100-fold increase with the increased average length and quantity of gold branches (nano tips). The analytical performance yielded a detection limit of 0.1 mg/ml for the 4-MBC target within 5 mins. The sensing method will likely find further improvement and broad use in the forensic science. Besides rapid detection and portability, the combination of the Raman effect and enhanced materials imparts other notable advantages, such as its non-contact and free of reagents. Keywords: Multi-branched gold nanoparticles, SERS, Spectroscopy, 4-Bromomethcathinone, Rapid detection |
| format | Article |
| id | doaj-e07e3810ab36483493f58385ca9c8a8d |
| institution | Directory of Open Access Journals |
| issn | 1319-6103 |
| language | English |
| publishDate | 2019-03-01 |
| publisher | Springer |
| record_format | Article |
| spelling | doaj-e07e3810ab36483493f58385ca9c8a8d2025-11-03T00:07:50ZengSpringerJournal of Saudi Chemical Society1319-61032019-03-0123337838310.1016/j.jscs.2018.11.005Synthesis of mesoporous-silica coated multi-branched gold nanoparticles for surface enhanced Raman scattering evaluation of 4-bromomethcathinoneYun Zou0Hong Chen1Yu Li2Xiaoliang Yuan3Xuejun Zhao4Wei Chen5Fangqi Cao6Nengbin Cai7Xiaochun Huang8Feiyu Yang9Wenbin Liu10Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR ChinaShanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR ChinaShanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR ChinaShanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR ChinaShanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR ChinaShanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR ChinaShanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR ChinaShanghai Key Laboratory of Crime Science Evidence, Institute of Forensic Science, Shanghai Public Security Bureau, 803 Zhongshan North 1st Road, Shanghai 200083, PR ChinaShanghai Key Laboratory of Crime Science Evidence, Institute of Forensic Science, Shanghai Public Security Bureau, 803 Zhongshan North 1st Road, Shanghai 200083, PR ChinaShanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR China; Corresponding authors.Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR China; Corresponding authors.Mesoporous silica-coated multi-branched gold nanoparticles (bAu@mesoSiO2) aiming for enhanced Raman sensing for 4-bromomethcathinone (4-BMC) detection is reported. In this work, we present an effective strategy to probe the Raman signal of 4-MBC. Morphologies and optical properties of the synthesized materials with different [Au3+]/[Au0] ratios are characterized utilizing transmission electron microscopy (TEM), UV–vis and mid-infrared spectroscopy. Both experimental and theoretical (simulation) studies were investigated. Taking advantages of gold core branches that provide highly localized and strongly enhanced electromagnetic fields due to plasmon resonance, surface-enhanced Raman scattering (SERS) is observed. The experimental results show that the SERS intensity exhibits a 100-fold increase with the increased average length and quantity of gold branches (nano tips). The analytical performance yielded a detection limit of 0.1 mg/ml for the 4-MBC target within 5 mins. The sensing method will likely find further improvement and broad use in the forensic science. Besides rapid detection and portability, the combination of the Raman effect and enhanced materials imparts other notable advantages, such as its non-contact and free of reagents. Keywords: Multi-branched gold nanoparticles, SERS, Spectroscopy, 4-Bromomethcathinone, Rapid detectionhttp://www.sciencedirect.com/science/article/pii/S1319610318301388 |
| spellingShingle | Yun Zou Hong Chen Yu Li Xiaoliang Yuan Xuejun Zhao Wei Chen Fangqi Cao Nengbin Cai Xiaochun Huang Feiyu Yang Wenbin Liu Synthesis of mesoporous-silica coated multi-branched gold nanoparticles for surface enhanced Raman scattering evaluation of 4-bromomethcathinone |
| title | Synthesis of mesoporous-silica coated multi-branched gold nanoparticles for surface enhanced Raman scattering evaluation of 4-bromomethcathinone |
| title_full | Synthesis of mesoporous-silica coated multi-branched gold nanoparticles for surface enhanced Raman scattering evaluation of 4-bromomethcathinone |
| title_fullStr | Synthesis of mesoporous-silica coated multi-branched gold nanoparticles for surface enhanced Raman scattering evaluation of 4-bromomethcathinone |
| title_full_unstemmed | Synthesis of mesoporous-silica coated multi-branched gold nanoparticles for surface enhanced Raman scattering evaluation of 4-bromomethcathinone |
| title_short | Synthesis of mesoporous-silica coated multi-branched gold nanoparticles for surface enhanced Raman scattering evaluation of 4-bromomethcathinone |
| title_sort | synthesis of mesoporous silica coated multi branched gold nanoparticles for surface enhanced raman scattering evaluation of 4 bromomethcathinone |
| url | http://www.sciencedirect.com/science/article/pii/S1319610318301388 |
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