Using PDMS Plasma Cavity SERS Substrate for the Detection of Aspartame
Surface-enhanced Raman spectroscopy (SERS) was used to simply and sensitively detect the artificial sweetener aspartame added to purified water. In this paper, a cavity formed spontaneously by silver ion droplets, and liquid polydimethylsiloxane (PDMS) is used as an SERS substrate to integrate plasm...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2020/4212787 |
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| author | Lvming Chen Chaoqun Ma Lei Li Chun Zhu Jiao Gu Hui Gao Zhuowei Zhu Chenxu Du Tingyu Wang Jianwen Xu Guoqing Chen |
| author_facet | Lvming Chen Chaoqun Ma Lei Li Chun Zhu Jiao Gu Hui Gao Zhuowei Zhu Chenxu Du Tingyu Wang Jianwen Xu Guoqing Chen |
| author_sort | Lvming Chen |
| collection | DOAJ |
| description | Surface-enhanced Raman spectroscopy (SERS) was used to simply and sensitively detect the artificial sweetener aspartame added to purified water. In this paper, a cavity formed spontaneously by silver ion droplets, and liquid polydimethylsiloxane (PDMS) is used as an SERS substrate to integrate plasma nanoparticles into optical devices. Firstly, Raman spectral characteristics of aspartame powder and aspartame aqueous solution were analyzed. Secondly, the effect of aspartame content in purified water on SERS intensity was investigated by using the prepared PDMS plasma cavity to test the samples. Thirdly, the SERS calibration curve was established by using the characteristic peak intensity of aspartame, and a good linearity relationship between the concentration of aspartame added in purified water and the characteristic peak intensity of 1588(±5) cm-1 was obtained. The linear regression equation and correlation coefficient (r) were y = 11412.73874 x + 107.36722 and 0.99593, respectively. The average recovery of aspartame in purified water was 101–106%, and the relative standard deviation (RSD) was 0.121–0.496%. The experimental results show that using this method can detect aspartame in purified water correctly, which is expected to be used in the identification and detection of sweeteners in purified water. |
| format | Article |
| id | doaj-art-ddd0431b0cc64ae1a5779302964cfe85 |
| institution | OA Journals |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-ddd0431b0cc64ae1a5779302964cfe852025-08-20T02:21:34ZengWileyJournal of Spectroscopy2314-49202314-49392020-01-01202010.1155/2020/42127874212787Using PDMS Plasma Cavity SERS Substrate for the Detection of AspartameLvming Chen0Chaoqun Ma1Lei Li2Chun Zhu3Jiao Gu4Hui Gao5Zhuowei Zhu6Chenxu Du7Tingyu Wang8Jianwen Xu9Guoqing Chen10School of Science, Jiangnan University, Wuxi 241000, ChinaSchool of Science, Jiangnan University, Wuxi 241000, ChinaSchool of Science, Jiangnan University, Wuxi 241000, ChinaSchool of Science, Jiangnan University, Wuxi 241000, ChinaSchool of Science, Jiangnan University, Wuxi 241000, ChinaSchool of Science, Jiangnan University, Wuxi 241000, ChinaSchool of Science, Jiangnan University, Wuxi 241000, ChinaSchool of Science, Jiangnan University, Wuxi 241000, ChinaSchool of Science, Jiangnan University, Wuxi 241000, ChinaSchool of Science, Jiangnan University, Wuxi 241000, ChinaSchool of Science, Jiangnan University, Wuxi 241000, ChinaSurface-enhanced Raman spectroscopy (SERS) was used to simply and sensitively detect the artificial sweetener aspartame added to purified water. In this paper, a cavity formed spontaneously by silver ion droplets, and liquid polydimethylsiloxane (PDMS) is used as an SERS substrate to integrate plasma nanoparticles into optical devices. Firstly, Raman spectral characteristics of aspartame powder and aspartame aqueous solution were analyzed. Secondly, the effect of aspartame content in purified water on SERS intensity was investigated by using the prepared PDMS plasma cavity to test the samples. Thirdly, the SERS calibration curve was established by using the characteristic peak intensity of aspartame, and a good linearity relationship between the concentration of aspartame added in purified water and the characteristic peak intensity of 1588(±5) cm-1 was obtained. The linear regression equation and correlation coefficient (r) were y = 11412.73874 x + 107.36722 and 0.99593, respectively. The average recovery of aspartame in purified water was 101–106%, and the relative standard deviation (RSD) was 0.121–0.496%. The experimental results show that using this method can detect aspartame in purified water correctly, which is expected to be used in the identification and detection of sweeteners in purified water.http://dx.doi.org/10.1155/2020/4212787 |
| spellingShingle | Lvming Chen Chaoqun Ma Lei Li Chun Zhu Jiao Gu Hui Gao Zhuowei Zhu Chenxu Du Tingyu Wang Jianwen Xu Guoqing Chen Using PDMS Plasma Cavity SERS Substrate for the Detection of Aspartame Journal of Spectroscopy |
| title | Using PDMS Plasma Cavity SERS Substrate for the Detection of Aspartame |
| title_full | Using PDMS Plasma Cavity SERS Substrate for the Detection of Aspartame |
| title_fullStr | Using PDMS Plasma Cavity SERS Substrate for the Detection of Aspartame |
| title_full_unstemmed | Using PDMS Plasma Cavity SERS Substrate for the Detection of Aspartame |
| title_short | Using PDMS Plasma Cavity SERS Substrate for the Detection of Aspartame |
| title_sort | using pdms plasma cavity sers substrate for the detection of aspartame |
| url | http://dx.doi.org/10.1155/2020/4212787 |
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