Marine endophytic actinomycetes assisted synthesis of copper nanoparticles (CuNPs): Characterization and antibacterial efficacy against human pathogens

•Extra cellular CuNPs were synthesized from marine endophytic actinomycetes.•CuNPs were characterized by UV–vis Spectroscopy, FTIR, SEM, EDX and TEM.•CuNPs suppressed the growth of human pathogenic bacteria. Marine endophytic actinomycetes isolated from seaweeds was used in assisting the synthesis o...

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Bibliographic Details
Published in:Materials letters 2017-05, Vol.194, p.176-180
Main Authors: Rasool, Ubaid, Hemalatha, S.
Format: Article
Language:English
Subjects:
Absorption spectra
Actinomycetes
Algae
Antibacterial
Antimicrobial agents
Bacteria
Copper
Copper nanoparticles
Fourier transforms
Infrared spectroscopy
Marine actinomycetes
Materials science
Nanoparticles
Pathogens
Seaweeds
Synthesis
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Summary:•Extra cellular CuNPs were synthesized from marine endophytic actinomycetes.•CuNPs were characterized by UV–vis Spectroscopy, FTIR, SEM, EDX and TEM.•CuNPs suppressed the growth of human pathogenic bacteria. Marine endophytic actinomycetes isolated from seaweeds was used in assisting the synthesis of copper nanoparticles which were characterized by UV–Visible spectroscopy, FTIR, SEM, TEM and assessed for antibacterial activity against five different human pathogenic bacteria. Freshly synthesized copper nanoparticles showed two absorption bands at 370nm and 690nm due to their variable size. FTIR analysis confirmed the capping and stabilization, SEM analysis depicted the morphology, EDX analysis confirmed the presence and TEM analysis provided the size and shape of synthesized copper nanoparticles. Antibacterial activity was observed through zones of inhibition. The results suggested that copper nanoparticles synthesized by the assistance of actinomycetes can be utilized to control the human pathogenic bacteria.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2017.02.055