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Nacre-mimic Reinforced Ag@reduced Graphene Oxide-Sodium Alginate Composite Film for Wound Healing
- Source :
- Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017), Scientific Reports
- Publication Year :
- 2017
- Publisher :
- Nature Publishing Group, 2017.
-
Abstract
- With the emerging of drug-resistant bacterial and fungal pathogens, there raise the interest of utilizing versatile antimicrobial biomaterials to treat the acute wound. Herein, we report the spraying mediated assembly of a bio-inspired Ag@reduced graphene-sodium alginate (AGSA) composite film for effective wound healing. The obtained film displayed lamellar microstructures similar to the typical “brick-and-mortar” structure in nacre. In this nacre-mimic structure, there are abundant interfacial interactions between nanosheets and polymeric matrix, leading to remarkable reinforcement. As a result, the tensile strength, toughness and Young’s modulus have been improved 2.8, 2.3 and 2.7 times compared with pure sodium alginate film, respectively. In the wound healing study, the AGSA film showed effective antimicrobial activities towards Pseudomonas aeruginosa, Escherichia coli and Candida albicans, demonstrating the ability of protecting wound from pathogenic microbial infections. Furthermore, in vivo experiments on rats suggested the effect of AGSA film in promoting the recovery of wound sites. According to MTT assays, heamolysis evaluation and in vivo toxicity assessment, the composite film could be applied as a bio-compatible material in vitro and in vivo. Results from this work indicated such AGSA film has promising performance for wound healing and suggested great potential for nacre-mimic biomaterials in tissue engineering applications.
- Subjects :
- Male
Silver
Alginates
lcsh:Medicine
02 engineering and technology
010402 general chemistry
01 natural sciences
Article
law.invention
Rats, Sprague-Dawley
Tissue engineering
Biomimetics
law
In vivo
Elastic Modulus
Tensile Strength
Materials Testing
Ultimate tensile strength
Human Umbilical Vein Endothelial Cells
Animals
Humans
Nacre
Candida albicans
lcsh:Science
Cell Proliferation
Wound Healing
Multidisciplinary
biology
Chemistry
Graphene
lcsh:R
Oxides
021001 nanoscience & nanotechnology
Antimicrobial
biology.organism_classification
Sodium Compounds
In vitro
Rats
0104 chemical sciences
Chemical engineering
Graphite
lcsh:Q
0210 nano-technology
Wound healing
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 7
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....df85816314fe94bbbcefe4e91feaccf1
- Full Text :
- https://doi.org/10.1038/s41598-017-14191-5