By Xu Yang
This thesis examines the feasibility of utilizing silver nanoparticles (AgNPs) as a manageable disinfectant. It explores the possibilities and demanding situations of utilizing AgNPs as an antimicrobial agent, and comprises the newest examine findings. It compares 3 types of AgNPs with reference to their antibacterial and antiviral results; their sustainability in genuine water matrices; and their antiviral mechanisms. the result of this examine equips the water with a greater knowing of the means, volume and mechanisms of nanosilver disinfection. it truly is of curiosity to graduate scholars, teachers and researchers within the sector of nanotechnology and environmental engineering.
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Extra info for A Study on Antimicrobial Effects of Nanosilver for Drinking Water Disinfection
Any intervention of these functions may lead to loss of bacterial infectivity. Considering the huge difference between bacteria and viruses, antiviral mechanisms could be signiﬁcantly different from antibacterial mechanisms. In spite of the well-documented antibacterial mechanism, systematic understanding of antiviral mechanisms of AgNPs remains a gap although some observations have been more or less reported by previous literature. Elechiguerra et al. (2005) may be one of the earliest studies that observed interaction of AgNPs with viruses, HIV-1 speciﬁcally.
In order to study the contribution of Ag+ release, minimal inhibition concentration (MIC) and minimal bactericidal concentration (MBC) and log removal of bacteria were determined and compared between AgNPs and Ag+. Results showed that the antibacterial proﬁles of AgNPs and Ag+ were the same or comparable, indicating the major contribution of bactericidal effects may be attributed to Ag+. Impacts of ROS generation by AgNPs were investigated by comparing antibacterial activities under different O2 percentages.
2. Phosphorescence and photodimerization of DNA complexed with Ag. Photochem Photobiol 18:29–38 Rahn RO, Setlow JK, Landry LC (1973) Ultraviolet-irradiation of nucleic-acids complexed with heavy-atoms. 3. Influence of Ag+ and Hg2+ on sensitivity of phage and of transforming DNA to ultraviolet-radiation. Photochem Photobiol 18:39–41 Rajasekharreddy P, Rani PU, Sreedhar B (2010) Qualitative assessment of silver and gold nanoparticle synthesis in various plants: a photobiological approach. J Nanopart Res 12: 1711–1721 Rogers JV, Parkinson CV, Choi YW, Speshock JL, Hussain SM (2008) A preliminary assessment of silver nanoparticle inhibition of monkeypox virus plaque formation.
A Study on Antimicrobial Effects of Nanosilver for Drinking Water Disinfection by Xu Yang