Wang, Menglong;
Ge, Ruiliang;
Zhao, Ping;
Williams, Gareth R;
Yu, Deng-Guang;
Annie Bligh, SW;
(2023)
Exploring wettability difference-driven wetting by utilizing electrospun chimeric Janus microfiber comprising cellulose acetate and polyvinylpyrrolidone.
Materials & Design
, Article 111652. 10.1016/j.matdes.2023.111652.
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Abstract
In exploring the difference in the wettability of fibers with various structures, three inner constructions of fibers, namely, uniaxial, Janus and chimeric Janus, have been fabricated by electrospinning. In electrospun fibers, polyvinyl pyrrolidone and cellulose acetate were used as a polymer matrix and ketoprofen was used as a model drug. Morphologies and inner structures were respectively investigated by scanning electron microscopy (SEM) and Transmission electron microscopy (TEM). Physical states and compatibilities of materials were detected by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Water contact angle (WCA) tests were conducted to determine the difference between wettability and wetting time among assorted fiber membranes. Results showed that the wettability gradient could drive water movement and wetting, which resulted in the rapid decrease of the WCA, to prepare Janus and chimeric Janus fiber membranes compared with uniaxial fiber membranes. Otherwise, in vitro drug release experiments were carried out and four fitting models were applied in matching release profiles. The results showed that electrospun fiber membranes belonged to sustained-release systems and such membranes were influenced by drug diffusion and backbone corrosion effects. In this study, whether electrospun multilayer Janus fibers could affect wettability and drug release was investigated.
| Type: | Article |
|---|---|
| Title: | Exploring wettability difference-driven wetting by utilizing electrospun chimeric Janus microfiber comprising cellulose acetate and polyvinylpyrrolidone |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.matdes.2023.111652 |
| Publisher version: | https://doi.org/10.1016/j.matdes.2023.111652 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Tri-fluid electrospinning, Chimeric Janus microfiber, Wettability, Drug release, Hydrophobic difference |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > UCL School of Pharmacy UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > UCL School of Pharmacy > Pharmaceutics |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10164139 |
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