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Search: WFRF:(Parihar V.) > (2020-2024) > Tailoring of the ph...

Tailoring of the physical and mechanical properties of biocompatible graphene oxide/gelatin composite nanolaminates via altering the crystal structure and morphology

Layek, R K (author)
LUT University, School of Engineering Science, Department of Separation Science, Mukkulankatu 19, 15210 Lahti, Finland
Parihar, V S (author)
Biomaterials and Tissue Engineering Group, BioMediTech, Faculty of Medicine and Health Technology, Tampere University, Finland
Skrifvars, Mikael, 1962- (author)
Högskolan i Borås,Akademin för textil, teknik och ekonomi,Swedish Centre for Resource Recovery
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Javanshour, F (author)
Tampere University, Engineering Material Science, P.O. Box 589, 33101 Tampere, Finland
Kroon, M (author)
Biomaterials and Tissue Engineering Group, BioMediTech, Faculty of Medicine and Health Technology, Tampere University, Finland
Kanerva, M (author)
Tampere University, Engineering Material Science, P.O. Box 589, 33101 Tampere, Finland
Vuorinen, J (author)
Tampere University, Engineering Material Science, P.O. Box 589, 33101 Tampere, Finland
Kellomaki, M (author)
Biomaterials and Tissue Engineering Group, BioMediTech, Faculty of Medicine and Health Technology, Tampere University, Finland
Sarlin, E (author)
Tampere University, Engineering Material Science, P.O. Box 589, 33101 Tampere, Finland
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 (creator_code:org_t)
2021
2021
English.
In: Materials Advances. - : Royal Society of Chemistry (RSC). - 2633-5409.
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Despite substantial progress being made relating to 2D-nanofiller-based composite nanolaminates, the fabrication of composite nanolaminates with enhanced ductility and toughness is still challenging. In this study, layered structure graphene oxide (GO)/gelatin powder (GP) composites nanolaminates with enhanced ductility and toughness have been achieved by a simple vacuum filtration of aqueous dispersion of GO/GP composite solution containing 5 wt% of GO. The composite film containing 5 wt% GO shows outstanding improvement of 200% in the stress at break value, with simultaneous enhancement of 52% of the strain at break value compared to GP film. A significant improvement in toughness from 2.2 MJ m(-3) to 9.5 MJ m(-3) is observed in the composite film containing 5 wt% GO. These significant enhancements of the mechanical properties of the composite film are obtained via the formation of an intercalated nanolaminate structure, H-bonding interactions, and the tailoring of the crystal structure of GP in the composite film, as proved via field-emission scanning electron microscopy, Fourier-transform infrared spectroscopy, and wide-angle X-ray diffraction studies. The growing of fibroblast cells on the composite films signifies that they are not cytotoxic. These GO/GP composites with significant mechanical properties and biocompatibility are very promising for various biomedical applications.

Subject headings

NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)

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