By Xu Yang
This thesis examines the feasibility of utilizing silver nanoparticles (AgNPs) as a workable disinfectant. It explores the possibilities and demanding situations of utilizing AgNPs as an antimicrobial agent, and comprises the newest learn findings. It compares 3 different types of AgNPs with reference to their antibacterial and antiviral results; their sustainability in actual water matrices; and their antiviral mechanisms. the end result of this study equips the water with a greater figuring out of the capability, quantity and mechanisms of nanosilver disinfection. it truly is of curiosity to graduate scholars, lecturers and researchers within the quarter of nanotechnology and environmental engineering.
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Extra info for A Study on Antimicrobial Effects of Nanosilver for Drinking Water Disinfection
In this proposed study, previous literature was critically reviewed in order to obtain a comprehensive and systematic perspective of this ﬁeld. These following sections will cover different synthesis of silver nanoparticles and relevant AgNPs-contained materials, antimicrobial effects thereof and mechanisms involved in antimicrobial effects of AgNPs. 1 Synthesis of Silver Nanoparticles Nanoparticles are particles which range from 1 to 100 nm in size. Numerous studies conducted in the past years demonstrated that these materials behave entirely different from their bulky counterparts with regard to the optical, electronic and catalytic properties, etc (Niemeyer 2001; Sun and Xia 2002; Moore 2006).
7 nm). As-prepared silver nanoprism had a size with 100 nm in length and 16 nm in thickness. Furthermore, a variety of radiation wavelengths had been found to be capable to induce this conversion, from visible lights to UV irradiation. These achievements were one of the ﬁrst few synthesis methods that combined light irradiation and chemical reduction, which even paved the way to a broader area of AgNPs synthesis. Compared with photo-induced synthesis, thermal synthesis (or chemical reduction methods) of silver nanoprism were reported to be able to achieve AgNPs of similar shape and size (Metraux and Mirkin 2005).
Mater Res Bull 43:1164–1170 Bﬁlainsa KC, D’Souza SF (2006) Extracellular biosynthesis of silver nanoparticles using the fungus Aspergillus fumigatus. Colloid Surf B 47:160–164 Butkus MA, Labare MP, Starke JA, Moon K, Talbot M (2004) Use of aqueous silver to enhance inactivation of coliphage MS-2 by UV disinfection. Appl Environ Microbiol 70:2848–2853 Butkus M, Talbot M, Labare M (2005) Feasibility of the silver-UV process for drinking water disinfection. Water Res 39:4925–4932 Chen SH, Carroll DL (2002) Synthesis and characterization of truncated triangular silver nanoplates.
A Study on Antimicrobial Effects of Nanosilver for Drinking Water Disinfection by Xu Yang