標題: | Reproducible and Bendable SERS Substrates with Tailored Wettability Using Block Copolymers and Anodic Aluminum Oxide Templates |
作者: | Lin, Yu-Liang Karapala, Vamsi Krishna Shen, Ming-Hui Chen, Yi-Fan He, Hung-Chieh Chang, Chia-Jui Chang, Yu-Ching Lu, Tien-Chang Liau, Ian Chen, Jiun-Tai 交大名義發表 應用化學系 應用化學系分子科學碩博班 光電工程學系 National Chiao Tung University Department of Applied Chemistry Institute of Molecular science Department of Photonics |
關鍵字: | anodic aluminum oxide;block copolymers;gold nanoparticles;surface-enhanced Raman scattering;wettability |
公開日期: | 1-一月-1970 |
摘要: | Surface properties are essential for substrates exhibiting high sensitivity in surface-enhanced Raman scattering (SERS) applications. In this work, novel SERS hybrid substrates using polystyrene-block-poly(methyl methacrylate) and anodic aluminum oxide templates is presented. The hybrid substrates not only possess hierarchical porous nanostructures but also exhibit superhydrophilic surface properties with the water contact angle approximate to 0 degrees. Such surfaces play an important role in providing uniform enhanced intensities over large areas (relative standard deviation approximate to 10%); moreover, these substrates are found to be highly sensitive (limit of detection approximate to 10(-12) m for rhodamine 6G (R6G)). The results show that the hybrid SERS substrates can achieve the simultaneous detection of multicomponent mixtures of different target molecules, such as R6G, crystal violet, and methylene blue. Furthermore, the bending experiments show that about 70% of the SERS intensities are maintained after bending from approximate to 30 degrees to 150 degrees. |
URI: | http://dx.doi.org/10.1002/marc.202000088 http://hdl.handle.net/11536/154415 |
ISSN: | 1022-1336 |
DOI: | 10.1002/marc.202000088 |
期刊: | MACROMOLECULAR RAPID COMMUNICATIONS |
起始頁: | 0 |
結束頁: | 0 |
顯示於類別: | 期刊論文 |