Monodisperse Microshell Structured Gelatin Microparticles for Temporary Chemoembolization
- Authors
- Kim, Bohyun; Han, Sang Woo; Choi, Song-Ee; Yim, DaBin; Kim, Jong-Ho; Wyss, Hans M.; Kim, Jin Woong
- Issue Date
- Feb-2018
- Publisher
- American Chemical Society
- Keywords
- TRANSCATHETER ARTERIAL EMBOLIZATION; IN-VITRO; INTRACRANIAL ANEURYSMS; COIL EMBOLIZATION; CROSS-LINKING; MICROSPHERES; COMPLICATIONS; HYDROGELS; THERAPY; EFFICACY
- Citation
- Biomacromolecules, v.19, no.2, pp.386 - 391
- Indexed
- SCIE
SCOPUS
- Journal Title
- Biomacromolecules
- Volume
- 19
- Number
- 2
- Start Page
- 386
- End Page
- 391
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/6816
- DOI
- 10.1021/acs.biomac.7b01479
- ISSN
- 1525-7797
- Abstract
- Embolization is a nonsurgical, minimally invasive procedure that deliberately blocks a blood vessel. Although several embolic particles have been commercialized, their much wider applications have been hampered owing mainly to particle size variation and uncontrollable degradation kinetics. Herein we introduce a microfluidic approach to fabricate highly monodisperse gelatin microparticles (GMPs) with a microshell structure. For this purpose, we fabricate uniform gelatin emulsion precursors using a microfluidic technique and consecutively cross-link them by inbound diffusion of glutaraldehyde from the oil continuous phase to the suspending gelatin precursor droplets. A model micromechanic study, carried out in an artificial blood vessel, demonstrates that the extraordinary degradation kinetics of the GMPs, which stems from the microshell structure, enables controlled rupturing while exhibiting drug release under temporary chemoembolic conditions
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