Journal
MATERIALS LETTERS
Volume 125, Issue -, Pages 67-70Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2014.03.134
Keywords
Nanoparticles; FTIR; Anti-biofilm; Anti-microbial
Funding
- DBT
- UGC-SAP
- DST, Government of India [SB-EMEQ139/2013]
Ask authors/readers for more resources
This paper describes a single-step green synthesis of extracellular silver nanoparticles (AgNPs) through an in-situ bio-reduction of aqueous solution of silver nitrate using Psidium guajava L UV-vis exhibits a characteristic surface plasmon resonance peak at around 487 nm. XRD analysis showed crystalline and face-centered cubic geometry of synthesized AgNPs. TEM results revealed stable and spherical particles with a mean diameter size of similar to 60 nm. Fourier transform infrared spectroscopy showed that the nanoparticles were capped with plant bioactive molecules. Phytosynthesized AgNPs showed broad-spectrum anti-microbial activity against Gram-positive, Gram-negative human pathogenic bacteria, and fungi. AgNPs showed prominent ability to inhibit the biofilms formed by Staphylococcus aureus, Escherichia coli and Candida albicans in a laboratory condition through crystal violet assay. The results suggest AgNPs as a promising candidate for the design of an effective antimicrobial and anti-biofilm agent in biomedical field. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available