期刊
ENVIRONMENTAL CHEMISTRY LETTERS
卷 15, 期 3, 页码 427-434出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s10311-016-0599-6
关键词
Phoma exigua var. exigua; Silver nanoparticles; Encapsulation; Characterization; Antibacterial activity; Escherichia coli; Staphylococcus aureus
资金
- University Grants Commission, New Delhi under UGC-SAP (DRS-I)
There is a demand for environmentally friendly processes to synthesize nanoparticles. Here, we synthesized silver nanoparticles using encapsulated biomass beads of Phoma exigua var. exigua. Nanoparticles were characterized by nanoparticle tracking and analysis (NTA), Fourier-transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy and zeta potential. Results of NTA show that nanoparticle size was homogenous. Concerning nanoparticle stability, zeta potential decreased with batch number. Silver nanoparticles exhibited an antibacterial activity against Escherichia coli and Staphylococcus aureus. Overall, the encapsulation of fungal biomass by calcium alginate for the batch synthesis of silver nanoparticles was easy, cost-effective, eco-friendly and suitable for the large-scale synthesis of silver nanoparticles. We have also demonstrated the reusability of the fungal biomass during biosynthesis of silver nanoparticles using the sodium alginate encapsulation method.
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