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| Type |
Poster Presentation |
| Area |
Polymer Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
POLY.P-35 |
| Subject |
Acorn-Shaped Bimetal Nanoparticle Clusters for Surface Enhanced Raman Scattering-based Biosensing |
| Authors |
Jae Hee Lee, Eun Young Hwang, Dong Woo Lim1,*
Department of Bionanotechnology, Hanyang University, Korea
1Department of Bionano Engineering, Hanyang University, Korea
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| Abstract |
Compartmentalized bimetallic nanoparticles have gained great interest to exploit unique optical properties for biosensing applications. Asymmetric distribution of chemical functionalities, composition and effective coupling of different metal domains would be promising as optical nanoprobes due to different physicochemical- and optical properties depending on the shape and size. We report herein synthesis of acorn-shaped bimetal nanoparticles (ASBNs) prepared by polyol method and their clustered structures induced by noncovalent interactions to develop SERS nanotags with controlled architectures. The ASBNs were prepared through overgrowth from functionalized gold seeds with octadecylamines, and their acorn shape was largely controlled by ammonia, surfactant, temperature, and reaction time. Their clustering was achieved by hydrophobic interactions of octadecylamines on the seed surface of the ASBNs. The ASBN clusters showed highly enhanced SERS intensity as compared to that of single ASBNs. Conclusively, these ASBN clusters would be advantageous as functional SERS nanoprobes for biosensing applications. |
| E-mail |
jaehee742@hanyang.ac.kr |
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123rd General Meeting of the KCS