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Title: Hydrophobic to superhydrophilic tuning of multifunctional sporopollenin for microcapsule and bio-composite applications
Authors: Tan, Ee-Lin
Potroz, Michael G.
Ferracci, Gaia
Wang, Lili
Jackman, J. A.
Cho, Nam-Joon
Keywords: Engineering::Materials
Issue Date: 2020
Source: Tan, E., Potroz, M. G., Ferracci, G., Wang, L., Jackman, J. A. & Cho, N. (2020). Hydrophobic to superhydrophilic tuning of multifunctional sporopollenin for microcapsule and bio-composite applications. Applied Materials Today, 18, 100525-.
Project: NRF-CRP10-2012-07
Journal: Applied Materials Today
Abstract: Sporopollenin sporoderm microcapsules (S-SMCs) are readily extracted from plant pollen grains and provide a renewable, biocompatible source of robust microparticles for a wide range of potential applications. While the lipidic/aromatic sporopollenin copolymer surface results in a predominantly hydrophobic interface, herein, we demonstrate how ultraviolet/ozone (UV-O) light-induced tuning of S-SMC interfacial properties enables production of hydrophobic to superhydrophilic microparticles, along with programmable function for colloidal science and cellular applications. In oil/water systems, stable Pickering emulsions are achieved using S-SMCs with short duration UV-O treatment, while incorporation of superhydrophilic S-SMCs into oil/water systems provides a novel means to produce, and isolate, fully oil-loaded microparticles. Furthermore, it is shown that human cells adhere to S-SMCs acting as tissue seeds, with the controllable formation of either 3D cell spheroids or network structures. Collectively, our findings demonstrate that light-induced modification of S-SMCs has broad implications across colloidal science, microencapsulation, drug delivery, and cellular applications.
ISSN: 2352-9407
DOI: 10.1016/j.apmt.2019.100525
Rights: © 2019 Elsevier Ltd. All rights reserved
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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