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논문 기본 정보

자료유형
학술저널
저자정보
Trang Huyen Le Kim (한국과학기술원) 전휘석 (한국과학기술원) 김진호 (삼성서울병원) 박근칠 (삼성서울병원) 김지선 (한국과학기술원) 남윤성 (한국과학기술원)
저널정보
한국생체재료학회 생체재료학회지 생체재료학회지 제21권 제4호
발행연도
2017.12
수록면
204 - 213 (10page)
DOI
https://doi.org/10.1186/s40824-017-0108-4

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Background: Polyglycerol is an attractive hydrophilic building block of amphiphilic copolymers for biomedical and pharmaceutical applications due to its biocompatibility, facile chemical modification, and anti-fouling activity. Herein we introduce theranostic nanoemulsions incorporating anti-cancer therapeutic and contrast agents using linear polyglycerol-poly(ε-caprolactone) diblock copolymers (PG-b-PCL). Lipiodol is used as a core oil that dissolves paclitaxel and serves as a contrast agent for computer tomography (CT). Methods: PG-b-PCL is synthesized by three-step processes: polymerization of ethoxyethyl glycerol ether; ringopening polymerization of ε-caprolactone; and deprotection of the PEEGE block. In vitro cytotoxicity of the polyglycerolated lipiodol nanoemulsions is demonstrated using HeLa ovarian cancer cells. The applicability of the prepared nanoemulsions as a contrast agent for CT imaging is also evaluated using micro-CT. Results: Three compositions of PG-b-PCL with different block lengths are synthesized to prepare nanoemulsions. The polyglycerolated lipiodol nanoemulsions exhibit excellent anti-cancer activities, while placebo nanoemulsions have no significant cytotoxicity under the same condition. Micro-CT imaging of the nanoemulsions confirms the ability of nanoemulsions as a contrast agent. Conclusions: This study suggests that PG-b-PCL is a promising polymeric emulsifier for effective stabilization and surface functionalization of drug delivery nanocarriers for therapeutic and imaging agents.

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