{"title":"具有反蛋白石结构的Au-Au复合材料的表面增强拉曼光谱","authors":"N.A. Martynova, A.E. Goldt, A.V. Grigorieva","doi":"10.1007/s13404-018-0234-3","DOIUrl":null,"url":null,"abstract":"<p>Golden inverse opals additionally decorated with 15.5?±?1.5?nm gold nanoparticles are proposed as reusable substrates for surface-enhanced Raman spectroscopy (SERS). Gold nanoparticles are found to be uniformly distributed making an input of enhancement ability of spectral characteristics with the colloidal system by ten times. This technique is demonstrated to be efficient in spectral features tuning via a combination of different gold derivatives. Two lasers served for resonant, pre-resonance, and non-resonance signal analyses. Reusability of the Au-Au composite films is demonstrated for methylene blue as a stable dye deposited onto the SERS chips using a 632.8-nm resonant laser for exciting. The enhancement factor for methylene blue achieved 10<sup>8</sup> and for rohodamine 6G was of about 10<sup>5</sup>. It was observed that rinsing of Au-Au nanocomposite SERS films with distilled water and heating up to 100?°C followed by dropping on a new portion of Au colloids onto the platform regenerates the substrates.</p>","PeriodicalId":55086,"journal":{"name":"Gold Bulletin","volume":"51 3","pages":"57 - 64"},"PeriodicalIF":2.2000,"publicationDate":"2018-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s13404-018-0234-3","citationCount":"3","resultStr":"{\"title\":\"Au-Au composites with inverse opal structure for surface-enhanced Raman spectroscopy\",\"authors\":\"N.A. Martynova, A.E. Goldt, A.V. Grigorieva\",\"doi\":\"10.1007/s13404-018-0234-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Golden inverse opals additionally decorated with 15.5?±?1.5?nm gold nanoparticles are proposed as reusable substrates for surface-enhanced Raman spectroscopy (SERS). Gold nanoparticles are found to be uniformly distributed making an input of enhancement ability of spectral characteristics with the colloidal system by ten times. This technique is demonstrated to be efficient in spectral features tuning via a combination of different gold derivatives. Two lasers served for resonant, pre-resonance, and non-resonance signal analyses. Reusability of the Au-Au composite films is demonstrated for methylene blue as a stable dye deposited onto the SERS chips using a 632.8-nm resonant laser for exciting. The enhancement factor for methylene blue achieved 10<sup>8</sup> and for rohodamine 6G was of about 10<sup>5</sup>. It was observed that rinsing of Au-Au nanocomposite SERS films with distilled water and heating up to 100?°C followed by dropping on a new portion of Au colloids onto the platform regenerates the substrates.</p>\",\"PeriodicalId\":55086,\"journal\":{\"name\":\"Gold Bulletin\",\"volume\":\"51 3\",\"pages\":\"57 - 64\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2018-06-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1007/s13404-018-0234-3\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Gold Bulletin\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13404-018-0234-3\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Chemistry\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Gold Bulletin","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s13404-018-0234-3","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Chemistry","Score":null,"Total":0}
Au-Au composites with inverse opal structure for surface-enhanced Raman spectroscopy
Golden inverse opals additionally decorated with 15.5?±?1.5?nm gold nanoparticles are proposed as reusable substrates for surface-enhanced Raman spectroscopy (SERS). Gold nanoparticles are found to be uniformly distributed making an input of enhancement ability of spectral characteristics with the colloidal system by ten times. This technique is demonstrated to be efficient in spectral features tuning via a combination of different gold derivatives. Two lasers served for resonant, pre-resonance, and non-resonance signal analyses. Reusability of the Au-Au composite films is demonstrated for methylene blue as a stable dye deposited onto the SERS chips using a 632.8-nm resonant laser for exciting. The enhancement factor for methylene blue achieved 108 and for rohodamine 6G was of about 105. It was observed that rinsing of Au-Au nanocomposite SERS films with distilled water and heating up to 100?°C followed by dropping on a new portion of Au colloids onto the platform regenerates the substrates.
期刊介绍:
Gold Bulletin is the premier international peer reviewed journal on the latest science, technology and applications of gold. It includes papers on the latest research advances, state-of-the-art reviews, conference reports, book reviews and highlights of patents and scientific literature. Gold Bulletin does not publish manuscripts covering the snthesis of Gold nanoparticles in the presence of plant extracts or other nature-derived extracts. Gold Bulletin has been published over 40 years as a multidisciplinary journal read by chemists, physicists, engineers, metallurgists, materials scientists, biotechnologists, surface scientists, and nanotechnologists amongst others, both within industry and academia. Gold Bulletin is published in Association with the World Gold Council.