Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 171, Issue -, Pages 457-464Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2020.12.226
Keywords
Layer-by-layer self-assembly; Poly (gamma-glutamic acid); Modified chitosan; Chitosan; Protein adsorption; Polyelectrolyte multilayers
Funding
- Chang Gung Memorial Hospital [CMRPD2F0012]
- Ministry of Science and Technology of Taiwan [MOST 109-2221-E-182-054]
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In this study, ferulic acid-modified water soluble chitosan and poly (gamma-glutamic acid) polyelectrolyte multilayers films were constructed using layer-by-layer self-assembly technique. The films showed good wettability and protein adsorption resistance, indicating their potential as biomaterials for biomedical applications.
In this study, ferulic acid-modified water soluble chitosan and poly (gamma-glutamic acid) polyelectrolyte multilayers films were constructed through the layer-by-layer (LBL) self-assembly technique. Chitosan (CS) or ferulic acid modified chitosan (MCS) and Poly (gamma-glutamic acid) (PGA) was alternately deposited on the surface of glass substrate for the enhancement of surface modification. The obtained films were characterized by Fourier transform spectroscopy (FTIR), X-ray diffractometry (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), UV-vis spectroscopy and water contact angle to study its physico-chemical properties including protein absorption. The (PGA/MCS) films showed intense deposition of multilayers built upon the surface roughness and an increase in the exponential growth of multilayer films by UV-vis spectroscopy. Water contact angle indicated that the (PGA/MCS) films performed well with good wettability due to the increase in the number of layers. The LBL multilayer coatings of (PGA/MCS) films surface possessed a reduced amount of protein adsorption. These results indicated that it can resist the protein adsorption and can enhance the biocompatibility towards the biomedical application through the protein interaction. The (PGA/MCS) films has the potential to utilization as a good biomaterial for biomedical purposes to intensify the bio-active surface. (C) 2021 Elsevier B.V. All rights reserved.
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