Development and validation of a low-cost, bio- and nano-based innovative technology for drinking water disinfection

• Grant number: 20/12867-2
• Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants
• Start date: April 01, 2021
• End date: March 31, 2023
• Field of knowledge: Interdisciplinary Subjects
• Principal Investigator: Cristiane Angélica Ottoni
• Grantee: Cristiane Angélica Ottoni
• Host Institution: Instituto de Biociências (IB-CLP). Universidade Estadual Paulista (UNESP). Campus Experimental do Litoral Paulista. São Vicente , SP, Brazil
• Associated researchers: Alfredo Eduardo Maiorano ; André Guimarães Lemos Antunes ; Denis Moledo de Souza Abessa ; Edison Barbieri ; Fernando Cesar Perina ; Marta Filipa Jesus de Freitas Simões ; Roberto Carlos Domingues Martins ; Susana Patrícia Mendes Loureiro
• Associated scholarship(s): 22/03562-9 - Development and validation of an innovative low-cost technology based on a bio- and nano-approach to the disinfection of drinking water, BP.TT

Abstract

Public water supply, when not properly treated, may become the source of several pathogenic microorganisms, a major societal problem in developing countries. Due to their unique physical and chemical properties, some nanoparticles (NP) are used as new antimicrobial agents. Amongst the most promising NP with antimicrobial properties, silver (Ag), gold (Au) and titanium dioxide (TiO2) have been described. Although the use of synthetic NP is the most widespread, there is a growing interest in using biological NP of these metals since they show less toxicity to aquatic and terrestrial organisms. This project aims at developing a new eco-friendly, low-cost, easy-to-use and bio-based solution for water disinfection in the treatment of drinking water. It will be based upon the biosynthesis of Ag, Au and TiO2 NPs, produced by marine fungi, and displaying antimicrobial activity. In general terms, the NPs will be immobilized, by encapsulation, in alginate and/or chitosan gel, and applied as a filling in a low-cost fixed bed reactor, aiming at the treatment of drinking water through a continuous process. NP will be coated with alginate and/or chitosan, incorporated into a low-cost system for the treatment of drinking water. Ecotoxicity studies will also be performed on freshwater organisms to insure that the new solution does not pose environmental risks. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DA SILVA, CAROLINA ASSIS; RIBEIRO, BRUNA MARQUES; TROTTA, CATERINA DO VALLE; PERINA, FERNANDO CESAR; MARTINS, ROBERTO; ABESSA, DENIS MOLEDO DE SOUZA; BARBIERI, EDISON; SIMO, MARTA FILIPA; ANGELICA OTTONI, CRISTIANE. Effects of mycogenic silver nanoparticles on organisms of different trophic levels. Chemosphere, v. 308, p. 8-pg., 2022-12-01. (20/12867-2)

OTTONI, CRISTIANE; TROTTA, CATERINA DO VALLE; MARTINS, GILBERTO; MATOS, JOANA; MAIORANO, ALFREDO EDUARDO; BRITO, ANTONIO G.; PEIXOTO, LUCIANA. In Situ Trametes versicolor Laccase Biocathode Performance Assessment in Dual-Chamber Microbial Fuel Cells. BioEnergy Research, v. N/A, p. 9-pg., 2023-04-04. (20/12867-2)

ZWAR, INGRID P.; TROTTA, CATERINA DO VALLE; ZIOTTI, ANA B. S.; NETO, MILTON LIMA; ARAUJO, WELINGTON L.; DE MELO, ITAMAR S.; OTTONI, CRISTIANE A.; DE SOUZA, ANA O.. Biosynthesis of silver nanoparticles using actinomycetes, phytotoxicity on rice seeds, and potential application in the biocontrol of phytopathogens. JOURNAL OF BASIC MICROBIOLOGY, v. 63, n. 1, p. 11-pg., 2022-11-06. (18/04258-6, 20/12867-2)