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Title: Evaluation of mechanism of cold atmospheric pressure plasma assisted polymerization of acrylic acid on low density polyethylene (LDPE) film surfaces: Influence of various gaseous plasma pretreatment
Authors: Ramkumar M.C.
Pandiyaraj K.N.
Arun Kumar A.
Padmanabhan P.V.A.
Uday Kumar S.
Gopinath, Packirisamy
Bendavid A.
Cools P.
De Geyter N.
Morent R.
Deshmukh R.R.
Published in: Applied Surface Science
Abstract: Owing to its exceptional physiochemical properties, low density poly ethylene (LDPE) has wide range of tissue engineering applications. Conversely, its inadequate surface properties make LDPE an ineffectual candidate for cell compatible applications. Consequently, plasma-assisted polymerization with a selected precursor is a good choice for enhancing its biocompatibility. The present investigation studies the efficiency of plasma polymerization of acrylic acid (AAC) on various gaseous plasma pretreated LDPE films by cold atmospheric pressure plasma, to enhance its cytocompatibility. The change in chemical composition and surface topography of various gaseous plasma pretreated and acrylic deposited LDPE films has been assessed by X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). The changes in hydrophilic nature of surface modified LDPE films were studied by contact angle (CA) analysis. Cytocompatibility of the AAC/LDPE films was also studied in vitro, using RIN-5F cells. The results acquired by the XPS and AFM analysis clearly proved that cold atmospheric pressure (CAP) plasma assisted polymerization of AAC enhances various surface properties including carboxylic acid functional group density and increased surface roughness on various gaseous plasma treated AAC/LDPE film surfaces. Moreover, contact angle analysis clearly showed that the plasma polymerized samples were hydrophilic in nature. In vitro cytocompatibility analysis undoubtedly validates that the AAC polymerized various plasma pretreated LDPE films surfaces stimulate cell distribution and proliferation compared to pristine LDPE films. Similarly, cytotoxicity analysis indicates that the AAC deposited various gaseous plasma pretreated LDPE film can be considered as non-toxic as well as stimulating cell viability significantly. The cytocompatible properties of AAC polymerized Ar + O 2 plasma pretreated LDPE films were found to be more pronounced compared to the other plasma pretreated AAC/LDPE films. © 2018 Elsevier B.V.
Citation: Applied Surface Science(2018), 439(): 991-998
Issue Date: 2018
Publisher: Elsevier B.V.
Keywords: Adhesive strength
Cold atmospheric pressure plasma
Low density poly ethylene
Plasma pretreatment
ISSN: 1694332
Author Scopus IDs: 18837743900
Author Affiliations: Ramkumar, M.C., Surface Engineering Laboratory, Department of Physics, Sri Shakthi Institute of Engineering and Technology, Coimbatore, 641062, India
Pandiyaraj, K.N., Surface Engineering Laboratory, Department of Physics, Sri Shakthi Institute of Engine
Funding Details: One of the authors Dr.K.N would like to express his sincere thanks to the Department of Atomic Energy-Board of Research in Nuclear Sciences (DAE-BRNS) (34/14/05/2014-BRNS/0145) and Department of Science and Technology- Science and Engineering Research Boa
Corresponding Author: Pandiyaraj, K.N.; Surface Engineering Laboratory, Department of Physics, Sri Shakthi Institute of Engineering and TechnologyIndia; email:
Appears in Collections:Journal Publications [BT]

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