| 학회 | 한국화학공학회 |
| 학술대회 | 2006년 가을 (10/27 ~ 10/28, 고려대학교) |
| 권호 | 12권 2호, p.2464 |
| 발표분야 | 재료 |
| 제목 | Fabrication of Colloidal Crystal Films with Functionalized Polystyrene for Bio-applications |
| 초록 | Colloidal crystal films have been studied by several research groups due to their applications as photonic crystals, sensors, and matrices for catalysts. Especially, demand for them in bio-applications is increasing because of cheap manufacturing cost and fast detection with naked eye. These applications need colloidal crystal films with defect-free and well-ordered over the large area but they can be hardly achieved by common self-assembly method. In this experiment, we fabricated colloidal crystal films by dip coating method and controlled the thickness of films by varying the lift-up rate of a substrate and a concentration of the colloidal suspension. Addition of water-soluble polymer such as polyvinylpyrrolidone in the suspension reduced the defect of films because of similar capillary forces between particles. We also fabricated a polystyrene particles terminated carboxylic group. The particles could be reacted with amine groups in bio-system by forming amide bonds. Specific bindings between functional groups in films and target molecules could be verified from the shift of reflection spectra of the films and it would make functionalized colloidal crystal films for biosensors. |
| 저자 | 최재훈1, 이승곤1, 이수연1, 서영빈2, 양승만1 |
| 소속 | 1한국과학기술원 광자유체집적소자연구단 / 한국과학기술원 생명화학공학과, 2한국과학기술원 생명화학공학과 |
| 키워드 | colloidal crystal film; biosensor; functionalized polystyrene; dip coating |
| 원문파일 | 초록 보기 |
