Abstract
In the current study, a facile green synthesis of silver-gelatin core–shell nanostructures (spherical, spherical/cubic hybrid, and cubic, DLS diameter: 4.1–6.9 nm) is reported via the wet chemical synthesis procedure. Sunlight-UV as an available reducing agent cause mild reduction of silver ions into the silver nanoparticles (Ag-NPs). Gelatin protein, as an effective capping/shaping agent, was used in the reaction to self-assemble silver nanostructures. The formation of silver nanostructures and their self-assembly pattern was confirmed by SEM, AFM, and TEM techniques. Further investigations were carried out using zeta-potential, UV–Vis, FTIR, GPC, and TGA/DTG/DTA data. The prepared Ag-NPs showed proper and acceptable antimicrobial activity against three classes of microorganisms (Escherichia coli Gram-negative bacteria, Staphylococcus aureus Gram-positive bacteria, and Candida albicans fungus). The antibacterial and antifungal Ag-NPs exhibit good stability in solution and can be considered as promising candidates for a wide range of biomedical applications.
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Acknowledgments
The authors thank Dr. G. R. Bardajee, Dr. M. Adeli, Mr. H. Rezanejad, Mr. H. Abroshan, Mr. M. Akhlaghi, and Mr. M. Fakourpour for their valuable help in preparation of this article, making the samples, and data taking.
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Pourjavadi, A., Soleyman, R. Silver nanoparticles with gelatin nanoshells: photochemical facile green synthesis and their antimicrobial activity. J Nanopart Res 13, 4647–4658 (2011). https://doi.org/10.1007/s11051-011-0428-6
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DOI: https://doi.org/10.1007/s11051-011-0428-6