Manoel P. Brito
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Manoel P. Brito has a total of 11 co-authors. Here are the top co-authors by number of shared publications:
- Alyne Rodrigues de Araújo
Universidade Federal do Delta do Parnaíba, Brasil
1 shared publication - André A. L. Silva
Supramolecular Self-Assembly Laboratory, Federal University of Piauí, Teresina 64049-550, Brazil
1 shared publication - Durcilene Alves da Silva
Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaíba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
1 shared publication - Edson Cavalcanti Silva Filho
Universidade Federal do Piauí
1 shared publication - Eduardo Rezende Triboni
Laboratório Nanotecnologia e Engenharia de Processos-NEP, Universidade de São Paulo, Lorena, SP, Estrada Municipal do Campinho, s/n1, CEP 12.602-810, Lorena, SP, Brazil
1 shared publication - Janildo Lopes Magalhães
Graduação em Licenciatura Plena em Química pela Universidade Federal do Piauí-UFPI. Mestrado e Doutorado em Química Analítica pelo Instituto de Química de São Carlos (IQSC-USP). Professor Associado na UFPI, onde atua como docente e pesquisador. É membro permanente do Programa de Pós-Graduação em Química (PPGQ-UFPI).. Lattes: http://lattes.cnpq.br/. ORCID: https://orcid.org
1 shared publication
Latest Publications
- Open Access
Insights into the Antimicrobial Activity of Hydrated Cobaltmolybdate Doped with Copper
Molybdates are biocidal materials that can be useful in coating surfaces that are susceptible to contamination and the spread of microorganisms. The aim of this work was to investigate the effects of copper doping of hydrated cobalt molybdate, synthesized by the co-precipitation method, on its antibacterial activity and to elucidate the structural and morphological changes caused by the dopant in the material. The synthesized materials were characterized by PXRD, Fourier Transformed Infrared (FTIR), thermogravimetric analysis/differential scanning calorimetry (TG/DSC), and SEM-Energy Dispersive Spectroscopy (SEM-EDS). The antibacterial response of the materials was verified using the Minimum Inhibitory Concentration (MIC) employing the broth microdilution method. The size of the CoMoO4·1.03H2O microparticles gradually increased as the percentage of copper increased, decreasing the energy that is needed to promote the transition from the hydrated to the beta phase and changing the color of material. CoMoO4·1.03H2O obtained better bactericidal performance against the tested strains of Staphylococcus aureus (gram-positive) than Escherichia coli (gram-negative). However, an interesting point was that the use of copper as a doping agent for hydrated cobalt molybdate caused an increase of MIC value in the presence of E. coli and S. aureus strains. The study demonstrates the need for caution in the use of copper as a doping material in biocidal matrices, such as cobalt molybdate.
Open AccessInsights into the Antimicrobial Activity of Hydrated Cobaltmolybdate Doped with Copper
Molybdates are biocidal materials that can be useful in coating surfaces that are susceptible to contamination and the spread of microorganisms. The aim of this work was to investigate the effects of copper doping of hydrated cobalt molybdate, synthesized by the co-precipitation method, on its antibacterial activity and to elucidate the structural and morphological changes caused by the dopant in the material. The synthesized materials were characterized by PXRD, Fourier Transformed Infrared (FTIR), thermogravimetric analysis/differential scanning calorimetry (TG/DSC), and SEM-Energy Dispersive Spectroscopy (SEM-EDS). The antibacterial response of the materials was verified using the Minimum Inhibitory Concentration (MIC) employing the broth microdilution method. The size of the CoMoO4·1.03H2O microparticles gradually increased as the percentage of copper increased, decreasing the energy that is needed to promote the transition from the hydrated to the beta phase and changing the color of material. CoMoO4·1.03H2O obtained better bactericidal performance against the tested strains of Staphylococcus aureus (gram-positive) than Escherichia coli (gram-negative). However, an interesting point was that the use of copper as a doping agent for hydrated cobalt molybdate caused an increase of MIC value in the presence of E. coli and S. aureus strains. The study demonstrates the need for caution in the use of copper as a doping material in biocidal matrices, such as cobalt molybdate.