Wound healing potential of antibacterial microneedles loaded with green tea extracts
- Authors
- Park, So Young; Lee, Hyun Uk; Lee, Young-Chul; Kim, Gun Hwa; Park, Edmond Changkyun; Han, Seung Hyun; Lee, Jeong Gyu; Choi, Saehae; Heo, Nam Su; Kim, Dong Lak; Huh, Yun Suk; Lee, Jouhahn
- Issue Date
- 1-Sep-2014
- Publisher
- ELSEVIER
- Keywords
- Microneedles; Hyaluronic acid; Green tea extract; Transdermal drug delivery; Antibacterial activity; Wound healing
- Citation
- MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, v.42, pp.757 - 762
- Journal Title
- MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
- Volume
- 42
- Start Page
- 757
- End Page
- 762
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/12305
- DOI
- 10.1016/j.msec.2014.06.021
- ISSN
- 0928-4931
- Abstract
- This study evaluates the utility of an antibacterial microneedle composed of green tea (GT) extract and hyaluronic acid (HA), for the efficient delivery of GT. These microneedles have the potential to be a patient-friendly method for the conventional sustained release of drugs. In this study, a fabrication method using a mold-based technique to produce GT/HA microneedles with a maximum area of similar to 50 mm(2) with antibacterial properties was used to manufacture transdermal drug delivery systems. Fourier transform infrared (FTIR) spectrometry was carried out to observe the potential modifications in the microneedles, when incorporated with GT. The degradation rate of GT in GT/HA microneedles was controlled simply by adjusting the HA composition. The effects of different ratios of GT in the HA microneedles were determined by measuring the release properties. In HA microneedles loaded with 70% GT (GT70), a continuous higher release rate was sustained for 72 h. The in vitro cytotoxicity assays demonstrated that GT/HA microneedles were not generally cytotoxic to Chinese hamster ovary cells (CHO-K1), human embryonic kidney cells (2931), and mouse muscle cells (C2C12), which were treated for 12 and 24 h. Antimicrobial activity of the GT/HA microneedles was demonstrated by similar to 95% growth reduction of gram negative [Escherichia coli (E. coli), Pseudomonas putida (P. putida), and Salmonella typhimurium (S. typhimurium)] and gram positive bacteria [Staphylococcus aureus (S. Aureus) and Bacillus subtilis (B. subtilis)], with GT70. Furthermore, GT/HA microneedles reduced bacterial growth of infected wound sites in the skin and improved wound healing process of skin in rat model. (C) 2014 Elsevier B.V. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 바이오나노대학 > 바이오나노학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/12305)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.