Abstract
This study underscores the development of Ag-PEG-Ch nanocomposite film using the aqueous leaves extract of Cannabis sativa under the influence of ultrasound, as smart substrates for antimicrobial uses, via innovative in situ reactive and reduction pathways. Ag nanoparticles that are synthesized by using leaves extract and ultrasound as an energy source have emerged as nontoxic and ecofriendly. In this study, silver nitrate was used as a silver precursor and PEG and chitosan were used as the polymeric stabilizer and solid support, while cannabis sativa leaves extract acts as a green reducing agent. This polymer metal film was characterized by FT-IR, SEM, TEM, TGA, DSC and antimicrobial activities. XRD peaks clearly reveals that FCC Ag nanoparticles embedded in polymer matrix, very fine Ag nanoparticles (4-6 nm) can be synthesized through ultrasound has been proven by TEM images and TGA-DSC results show that this nanocomposite film is thermally stable. This nanocomposite film possesses synergistic biocidal activities also.
Highlights
Since ancient times, different forms of silver have been used as an antimicrobial agent against infections, before recognizing their nanometric dimension.[1]
A medium band that appears at 1384 cm-1, is a significant band that confirms the formation of metallopolymer (Ag-Polyethylene Glycol (PEG)-Ch).[51]
The antimicrobial activity of Ag-PEG-Ch nanocompositeusing C. sativa leaves extract was studied against four pathogenic bacterial strains, two Gram positive (S. aureusMTCC 96 andS. pyogenus MTCC 442) and two Gram negative (E. coli MTCC 443 andP. aeruginosa MTCC 1688) and three fungal strains
Summary
Silver nitrate was used as a silver precursor and PEG and chitosan were used as the polymeric stabilizer and solid support, while cannabis sativa leaves extract acts as a green reducing agent. This polymer metal film was characterized by FT-IR, SEM, TEM, TGA, DSC and antimicrobial activities. XRD peaks clearly reveals that FCC Ag nanoparticles embedded in polymer matrix, very fine Ag nanoparticles (46 nm) can be synthesized through ultrasound has been proven by TEM images and TGA-DSC results show that this nanocomposite film is thermally stable.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
