Effect of CTAB in biosynthesis of Au-nanoparticles using Gymnocladus assamicus and its biological evaluation

The shape-controlling role of cetyltrimethylammonium bromide (CTAB) in biosynthesis of Au-nanoparticles is reported by using Gymnocladus assamicus pod extract. The Au-nanoparticles are spherical in presence of CTAB and the shape and size of the Au nanoparticles strongly depend on the concentration o...

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Bibliographic Details
Published in:Materials letters 2013-12, Vol.113, p.103-106
Main Authors: Tamuly, Chandan, Hazarika, Moushumi, Debnath, Rajal, Saikia, Ratul, Bordoloi, Manobjyoti, Bora, Jayanta, Das, Manash R.
Format: Article
Language:English
Subjects:
Antibacterial activity
antibacterial properties
Biomaterials
biosynthesis
gold
Gram-negative bacteria
Gram-positive bacteria
Gymnocladus
microbial growth
Nanoparticles
Pseudomonas aeruginosa
Spectroscopy
Staphylococcus aureus
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Summary:The shape-controlling role of cetyltrimethylammonium bromide (CTAB) in biosynthesis of Au-nanoparticles is reported by using Gymnocladus assamicus pod extract. The Au-nanoparticles are spherical in presence of CTAB and the shape and size of the Au nanoparticles strongly depend on the concentration of CTAB. The bacterial activity of Au nanoparticles was investigated against the Gram negative bacteria Pseudomonas aeruginosa and Gram positive bacteria Staphylococcus aureus. The bacterial growth kinetic was monitored in nutrient broth. It was observed that the Au nanoparticles show strong antibacterial activity against P. aeruginosa and S. aureus. [Display omitted] •Synthesis of Au nanoparticles by using G. assamicus pod extract.•The CTAB effect the size/shape of Au nanoparticles.•The Au nanoparticles show suitable antibacterial activity.•The bacterial growth kinetic of Au nanoparticles with CTAB is monitored in nutrient broth.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2013.09.065