| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Transparent and flexible SERS substrates based on AuNPs/TEMPO-CNF nanocomposite for direct detection of hazardous chemicals in real-world |
| 초록 |
In this study, we report the development of a transparent and flexible SERS substrate based on gold nanoparticles and TEMPO oxidized cellulose nanofiber nanocomposites via a simple vacuum-assisted filtration. TEMPO-CNFs have good physical properties such as high elastic modulus and low thermal expansion as well as optical transparency (＞ 85 % at 550 nm). The filtration process allows us to control the number density and size ratio of AuNPs, which are strongly associated with signal intensity. The resultant AuNPs embedded TEMPO-CNF nanopaper enables back excitation and collection through the substrate with well-defined SERS signal, allowing for in-situ detection of target pesticides on fruits. We envision that the AuNPs/TEMPO-CNF nanocomposite could be an inexpensive and effective SERS platform for rapid in situ detection of hazardous chemicals. |
| 저자 |
유정목, 김다범, 고영상
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| 소속 |
경희대 |
| 키워드 |
SERS; Cellulose paper; AuNPs; Pesticides
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| E-Mail |
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