콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Emulsion-Based Synthesis of Reversibly Swellable, Magnetic Nanoparticle-Embedded Polymer Microcapsules
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2006-04
- 저자명 Hye Young Koo, Suk Tai Chang, Won San Choi, Jeong-Ho Park, Dong-Yu Kim*, Orlin D. Velev*
- 학술지명 Chem. Mater.
- 발행처명 ACS Publications
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 6
- 논문 다운로드 링크(외부) https://doi.org/10.1021/cm0608286
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
A one-step, template-free synthetic method for preparing polymeric microcapsules with iron oxide (γ-Fe2O3) magnetic nanoparticles (MPs) embedded in the polymer shell is reported. Using a simple emulsification of the multiphase mixture containing liquid prepolymer and MPs in chloroform solution, double emulsions comprising a chloroform core and MPs/polymer shell were spontaneously formed. After exposure to UV light, these double emulsions converted to microcapsules with a polymerized composite shell. The evolution from the double emulsions to the microcapsules was examined by confocal laser scanning microscopy. One unusual feature of these microcapsules is the ability to change shape reversibly by osmotic swelling of the water core upon repetitive drying and hydration. The microcapsules had an intrinsic superparamagnetic response due to the presence of the magnetic nanoparticles and could be moved and collected by external magnetic fields.
