Open Access System for Information Sharing

Login Library

 

Article
Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Hydrogel Microcapsules with a Thin Oil Layer: Smart Triggered Release via Diverse Stimuli

Title
Hydrogel Microcapsules with a Thin Oil Layer: Smart Triggered Release via Diverse Stimuli
Authors
Joeng, Hye-SeonEUNSEO, KIMNAM, CHANGWOOChoi, YoonLee, You-JeongWeitz, David A.LEE, HYOMINChoi, Chang-Hyung
Date Issued
Dec-2020
Publisher
John Wiley & Sons Ltd.
Abstract
A hydrogel microcapsule with an intermediate thin oil layer is presented to achieve smart release of a broad range of cargoes triggered via diverse stimuli. A microfluidic technique is used to produce triple emulsion droplets with a thin oil layer that separates the innermost aqueous phase from the hydrogel prepolymer phase, which transforms into a hydrogel shell via photopolymerization. The intermediate oil layer within the hydrogel microcapsule acts as an effective diffusion barrier, allowing encapsulation of various small cargoes within a porous hydrogel shell until a stimulus is applied to destabilize the oil layer. It is demonstrated that diverse stimuli including chemical dissolution, mechanical stress, and osmotic pressure can be utilized to release the encapsulated cargo on‐demand. In addition, osmotic pressure and the hydrogel shell thickness can be independently tuned to control the onset time of release as well as the release behavior of multi‐cargo encapsulated hydrogel microcapsule. The release can be either simultaneous or selective.
URI
http://oasis.postech.ac.kr/handle/2014.oak/104703
ISSN
1616-301X
Article Type
Article
Citation
Advanced Functional Materials, page. 2009553, 2020-12
Files in This Item:
There are no files associated with this item.

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher

이효민LEE, HYOMIN
Dept. of Chemical Enginrg
Read more

Views & Downloads

Browse