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Green Synthesis of Silver Nanoparticles and their Antimicrobial Activities
Silver nanoparticles were synthesized from two novel plant extracts, Salvia fruticosa and Adhatodavasica, using 1 mM AgNO3 solution as the precursor. The silver nanoparticles obtained exhibited typical plasmon absorption maxima of between 420 and 444 nm one hour after their biosynthesis. A size variation of between 36 and 110 nm was observed using TEM, with the average diameter of 73 nm recorded. Additionally, the XRD pattern, corresponding to planes (1 1 1), (2 0 0), (2 2 0) (3 1 1), revealed the crystalline nature of the biosynthesized nanoparticles. Their inhibitory effect against microorganisms was also examined using the pathogenic fungi Aspergillusflavus and Fusariumsolanias well as pathogenic gram positive (S. aureus & B. cereus) and gram-negative (E. coli & P. aeruginosa) bacteria; resulting in high anti-bactericidal activity against B. cereus and E. coli.
Green Synthesis of Silver Nanoparticles and their Antimicrobial Activities
Silver nanoparticles were synthesized from two novel plant extracts, Salvia fruticosa and Adhatodavasica, using 1 mM AgNO3 solution as the precursor. The silver nanoparticles obtained exhibited typical plasmon absorption maxima of between 420 and 444 nm one hour after their biosynthesis. A size variation of between 36 and 110 nm was observed using TEM, with the average diameter of 73 nm recorded. Additionally, the XRD pattern, corresponding to planes (1 1 1), (2 0 0), (2 2 0) (3 1 1), revealed the crystalline nature of the biosynthesized nanoparticles. Their inhibitory effect against microorganisms was also examined using the pathogenic fungi Aspergillusflavus and Fusariumsolanias well as pathogenic gram positive (S. aureus & B. cereus) and gram-negative (E. coli & P. aeruginosa) bacteria; resulting in high anti-bactericidal activity against B. cereus and E. coli.
Green Synthesis of Silver Nanoparticles and their Antimicrobial Activities
Ghaith, El-Sayed I. (author) / Mohamed, Mohamed A. (author) / Abdel-Haliem, Mahmoud F. (author)
2020-02-01
1201754 byte
Conference paper
Electronic Resource
English
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