Gold Nanoparticles With Special Shapes: Controlled Synthesis, Surface-enhanced Raman Scattering, and The Application in Biodetection
Specially shaped gold nanoparticles have intrigued considerable attention becausethey usually possess high-sensitivity surface-enhanced Raman scattering (SERS) and thusresult in large advantages in trace biodetermination. In this article, starch-capped goldnanoparticles with hexagon and boot shapes...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2007-12-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/7/12/3299/ |
| _version_ | 1811305566630313984 |
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| author | Jinghong Li Zhouping Wang Jianqiang Hu |
| author_facet | Jinghong Li Zhouping Wang Jianqiang Hu |
| author_sort | Jinghong Li |
| collection | DOAJ |
| description | Specially shaped gold nanoparticles have intrigued considerable attention becausethey usually possess high-sensitivity surface-enhanced Raman scattering (SERS) and thusresult in large advantages in trace biodetermination. In this article, starch-capped goldnanoparticles with hexagon and boot shapes were prepared through using a nontoxic andbiologically benign aqueous-phase synthetic route. Shape effects of gold nanoparticles onSERS properties were mainly investigated, and found that different-shaped goldnanoparticles possess different SERS properties. Especially, the boot-shaped nanoparticlescould induce more 100-fold SERS enhancements in sensitivity as compared with those fromgold nanospheres. The extremely strong SERS properties of gold nanoboots have beensuccessfully applied to the detection of avidin. The unique nanoboots with high-sensitivitySERS properties are also expected to find use in many other fields such as biolabel,bioassay, biodiagnosis, and even clinical diagnosis and therapy. |
| first_indexed | 2024-04-13T08:28:47Z |
| format | Article |
| id | doaj.art-3fefd883f4d44480963ad3bcfec4b6ac |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T08:28:47Z |
| publishDate | 2007-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-3fefd883f4d44480963ad3bcfec4b6ac2022-12-22T02:54:20ZengMDPI AGSensors1424-82202007-12-017123299331110.3390/s7123299Gold Nanoparticles With Special Shapes: Controlled Synthesis, Surface-enhanced Raman Scattering, and The Application in BiodetectionJinghong LiZhouping WangJianqiang HuSpecially shaped gold nanoparticles have intrigued considerable attention becausethey usually possess high-sensitivity surface-enhanced Raman scattering (SERS) and thusresult in large advantages in trace biodetermination. In this article, starch-capped goldnanoparticles with hexagon and boot shapes were prepared through using a nontoxic andbiologically benign aqueous-phase synthetic route. Shape effects of gold nanoparticles onSERS properties were mainly investigated, and found that different-shaped goldnanoparticles possess different SERS properties. Especially, the boot-shaped nanoparticlescould induce more 100-fold SERS enhancements in sensitivity as compared with those fromgold nanospheres. The extremely strong SERS properties of gold nanoboots have beensuccessfully applied to the detection of avidin. The unique nanoboots with high-sensitivitySERS properties are also expected to find use in many other fields such as biolabel,bioassay, biodiagnosis, and even clinical diagnosis and therapy.http://www.mdpi.com/1424-8220/7/12/3299/Gold nanoparticleSpecial shapeSurface-enhanced Raman scatteringBiodetection |
| spellingShingle | Jinghong Li Zhouping Wang Jianqiang Hu Gold Nanoparticles With Special Shapes: Controlled Synthesis, Surface-enhanced Raman Scattering, and The Application in Biodetection Sensors Gold nanoparticle Special shape Surface-enhanced Raman scattering Biodetection |
| title | Gold Nanoparticles With Special Shapes: Controlled Synthesis, Surface-enhanced Raman Scattering, and The Application in Biodetection |
| title_full | Gold Nanoparticles With Special Shapes: Controlled Synthesis, Surface-enhanced Raman Scattering, and The Application in Biodetection |
| title_fullStr | Gold Nanoparticles With Special Shapes: Controlled Synthesis, Surface-enhanced Raman Scattering, and The Application in Biodetection |
| title_full_unstemmed | Gold Nanoparticles With Special Shapes: Controlled Synthesis, Surface-enhanced Raman Scattering, and The Application in Biodetection |
| title_short | Gold Nanoparticles With Special Shapes: Controlled Synthesis, Surface-enhanced Raman Scattering, and The Application in Biodetection |
| title_sort | gold nanoparticles with special shapes controlled synthesis surface enhanced raman scattering and the application in biodetection |
| topic | Gold nanoparticle Special shape Surface-enhanced Raman scattering Biodetection |
| url | http://www.mdpi.com/1424-8220/7/12/3299/ |
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