One-Pot Reducing Agent-Free Synthesis of Silver Nanoparticles/Nitrocellulose Composite Surface Coating with Antimicrobial and Antibiofilm Activities.
K G U R KumarasingheW C H SilvaM D A FernandoLalinda PalliyaguruP S JayawardenaMasaru ShimomuraNeluka FernandoChinthika Prabhashinie GunasekaraPradeep M JayaweeraPublished in: BioMed research international (2021)
Nitrocellulose with silver nanoparticle (AgNP/NC) composite was prepared in situ using Ag(CH3CO2) and nitrocellulose without any reducing agent. The composite materials synthesized were spray coated onto glass substrates to obtain thin films. The AgNPs/NC composites were characterized by ultraviolet-visible, Fourier transform infrared, X-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. The antimicrobial activity of AgNPs/NC composite was investigated by tube method and time-kill kinetic studies against three microbial species, including Pseudomonas aeruginosa (ATCC 27853), Staphylococcus aureus (ATCC 25923), and Candida albicans (ATCC 10231). The antibiofilm activities were qualitatively determined against all three organisms. Prepared AgNPs/NC films exhibited good antimicrobial activity and significant inhibition of biofilm development against all three microbial species. The effective dispersion of AgNPs/NC in biofilm was responsible for the significant antibiofilm activity of the prepared material. The reported AgNPs/NC composite can be used as coating additive in bacteriocidal paint which can be applied onto surfaces such as in healthcare environments.
Keyphrases
- silver nanoparticles
- electron microscopy
- candida albicans
- biofilm formation
- staphylococcus aureus
- pseudomonas aeruginosa
- healthcare
- high resolution
- cystic fibrosis
- microbial community
- escherichia coli
- methicillin resistant staphylococcus aureus
- room temperature
- acinetobacter baumannii
- mass spectrometry
- magnetic resonance imaging
- social media
- atomic force microscopy
- carbon nanotubes
- genetic diversity
- highly efficient