Next Article in Journal
Synthesis and Application of Egg Shell Biochar for As(V) Removal from Aqueous Solutions
Next Article in Special Issue
Electro-Fenton-Based Technologies for Selectively Degrading Antibiotics in Aqueous Media
Previous Article in Journal
Effect of Ceria Doping in Different Impregnation Steps on Ni-Based Catalysts Loading on TiO2-SiC for CO Methanation
Previous Article in Special Issue
Heterogeneous Advanced Oxidation Processes: Current Approaches for Wastewater Treatment
 
 
Article

Inactivation of Escherichia coli Using Biogenic Silver Nanoparticles and Ultraviolet (UV) Radiation in Water Disinfection Processes

1
Laboratory of Biological Chemistry, Department of Organic Chemistry, Institute of Chemistry, University of Campinas (UNICAMP), P.O. Box 5147, Campinas 13083-970, Brazil
2
National Institute for Bioprocessing Research and Training (NIBRT), A94 X099 Dublin, Ireland
3
Division of Hydrologic Sciences, Desert Research Institute, 775 E. Flamingo Road, Las Vegas, NV 89119, USA
*
Authors to whom correspondence should be addressed.
Academic Editors: Aida M. Diez and Vitor J. P. Vilar
Catalysts 2022, 12(4), 430; https://doi.org/10.3390/catal12040430
Received: 28 February 2022 / Revised: 3 April 2022 / Accepted: 8 April 2022 / Published: 11 April 2022
(This article belongs to the Special Issue Photo/Electrocatalysis for Wastewater Treatment)
This work tested the antimicrobial activity of three different biogenic silver nanoparticles (AgNPs) against Escherichia coli (E. coli) for water disinfection processes. The influence of different AgNP capping or stabilizing agents (e.g., protein or carbohydrate capped) and the use of ultraviolet (UV) radiation on the disinfection process were also assessed. The use of UV radiation was found to enhance the antimicrobial effects of AgNPs on E. coli. The antibacterial effects of AgNPs depended on the type of the capping biomolecules. Protein-capped nanoparticles showed greater antimicrobial effects compared with carbohydrate-capped (cellulose nanofibers, CNF) nanoparticles. Those capped with the fungal secretome proteins were the most active in E. coli inactivation. The least E. coli inactivation was observed for CNF-capped AgNPs. The size of the tested AgNPs also showed an expected effect on their anti-E. coli activity, with the smallest particles being the most active. The antimicrobial effects of biogenic AgNPs on E. coli make them an effective, innovative, and eco-friendly alternative for water disinfection processes, which supports further research into their use in developing sustainable water treatment processes. View Full-Text
Keywords: biogenic nanomaterials; inactivation; Escherichia coli; silver nanoparticles; water disinfection biogenic nanomaterials; inactivation; Escherichia coli; silver nanoparticles; water disinfection
Show Figures

Figure 1

MDPI and ACS Style

Tasic, L.; Stanisic, D.; Barros, C.H.N.; Covesi, L.K.; Bandala, E.R. Inactivation of Escherichia coli Using Biogenic Silver Nanoparticles and Ultraviolet (UV) Radiation in Water Disinfection Processes. Catalysts 2022, 12, 430. https://doi.org/10.3390/catal12040430

AMA Style

Tasic L, Stanisic D, Barros CHN, Covesi LK, Bandala ER. Inactivation of Escherichia coli Using Biogenic Silver Nanoparticles and Ultraviolet (UV) Radiation in Water Disinfection Processes. Catalysts. 2022; 12(4):430. https://doi.org/10.3390/catal12040430

Chicago/Turabian Style

Tasic, Ljubica, Danijela Stanisic, Caio H. N. Barros, Letícia Khater Covesi, and Erick R. Bandala. 2022. "Inactivation of Escherichia coli Using Biogenic Silver Nanoparticles and Ultraviolet (UV) Radiation in Water Disinfection Processes" Catalysts 12, no. 4: 430. https://doi.org/10.3390/catal12040430

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop