Microfluidic synthesis of pure chitosan microfibers for bio-artificial liver chip
- Authors
- Lee, Kwang Ho; Shin, Su Jung; Kim, Chang-Beom; Kim, Jung Kyung; Cho, Yong Woo; Chung, Bong Geun; Lee, Sang-Hoon
- Issue Date
- 2010
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- LAB ON A CHIP, v.10, no.10, pp.1328 - 1334
- Indexed
- SCIE
SCOPUS
- Journal Title
- LAB ON A CHIP
- Volume
- 10
- Number
- 10
- Start Page
- 1328
- End Page
- 1334
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/118564
- DOI
- 10.1039/b924987g
- ISSN
- 1473-0197
- Abstract
- We developed microfluidic-based pure chitosan microfibers (similar to 1 meter long, 70-150 mu m diameter) for liver tissue engineering applications. Despite the potential of the chitosan for creating bio-artificial liver chips, its major limitation is the inability to fabricate pure chitosan-based microstructures with controlled shapes because of the mechanical weakness of the pure chitosan. Previous studies have shown that chitosan micro/nanofibers can be fabricated by using chemicals and electrospinning techniques. However, there is no paper regarding pure chitosan-based microfibers in a microfluidic device. This paper suggests a unique method to fabricate pure chitosan microfibers without any chemical additive. We also analyzed the chemical, mechanical, and diffusion properties of pure chitosan microfibers. Attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectrometry and electron spectroscopy for chemical analysis (ESCA) were used to analyze the chemical composition of the synthesized chitosan microfibers. We measured the mechanical axial-force and diffusion coefficient in pure chitosan-based microfibers using fluorescence recovery after photobleaching (FRAP) techniques. Furthermore, to evaluate the capability of the microfibers for liver tissue formation, hepatoma HepG2 cells were seeded onto the chitosan microfibers. The functionality of these hepatic cells cultured on chitosan microfibers was analyzed by measuring albumin secretion and urea synthesis. Therefore, this pure chitosan-based microfiber chip could be a potentially useful method for liver tissue engineering applications.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Health Sciences > School of Biomedical Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.