Antimicrobial activity from polymeric composites-based polydimethylsiloxane/TiO2/GO: evaluation of filler synthesis and surface morphology
Antimicrobial substances may be used to reduce hospital infections and inhibit food contamination, thus ensuring the safety and well being of humans. The objective of this study was to evaluate the antimicrobial activity of the polymeric nanocomposites polydimethylsiloxane (PDMS) embedded with tw...
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ri-123456789-445832021-11-04T18:36:59Z Antimicrobial activity from polymeric composites-based polydimethylsiloxane/TiO2/GO: evaluation of filler synthesis and surface morphology Correa, Camila F. Santana, Luiza R. Silva, Ricardo M. Noremberg, Bruno S. Lund, Rafael G. Ribeiro, Juliana S. Motta, Fabiana Villela da Delmonte, Maurício Roberto Bomio Nascimento, Rubens Maribondo do Carreño, Neftalí Lênin Villarreal Antimicrobial activity Graphene oxide Titanium dioxide Polymer composite Antimicrobial substances may be used to reduce hospital infections and inhibit food contamination, thus ensuring the safety and well being of humans. The objective of this study was to evaluate the antimicrobial activity of the polymeric nanocomposites polydimethylsiloxane (PDMS) embedded with two types of fillers based on titanium dioxide (commercial TiO2 P25 versus TiO2 via facile Micro- wave-assisted hydrothermal-MAH synthesis) and graphene oxide (GO). The nanocomposites were prepared using different compositions, concentrations, and functionalizations (PDMS/TiO2/GO; PDMS/TiO2 and PDMS/GO). The antimicro- bial activity of the samples was evaluated for different treatments on Candida albicans, Staphylococcus aureus, and Enterococcus faecalis, by a modified direct contact test (mDCT). The samples were also evaluated on surface morphology and the roughness as a function of active particles insertion by atomic force microscopy (AFM). Most of the PDMS films whose polymer was embedded with GO and hydrothermal TiO2 showed the highest inhibition growth of bacteria and Candida over 24 h. After 24 h, F, J, and H samples showed the best antibacterial activity, whereas E showed the best antifungal activity. The results indicated that the nanocomposites PDMS/GO/TiO2MAH and PDMS/GO sample enhanced antimi- crobial activity in the treatments tested, therefore they were functional for con- taminant reduction 2021-10-15T17:07:26Z 2021-10-15T17:07:26Z 2016-11-04 article CORREA, C.F.; SANTANA, L.R.; SILVA, R.M.; NOREMBERG, B.S.; LUND, R.G.; RIBEIRO, J.S.; MOTTA, F.V.; BOMIO, M.R.D.; NASCIMENTO, R.M.; CARREÑO, N.L.V.. Antimicrobial activity from polymeric composites-based polydimethylsiloxane/TiO2/GO: evaluation of filler synthesis and surface morphology. Polymer Bulletin, [S. l.], v. 74, n. 6, p. 2379-2390, 4 nov. 2016. Disponível em: https://link.springer.com/article/10.1007%2Fs00289-016-1843-8. Acesso em: 19 mar. 2021. http://dx.doi.org/10.1007/s00289-016-1843-8. Electronic: 1436-2449 Print: 0170-0839 https://repositorio.ufrn.br/handle/123456789/44583 http://dx.doi.org/10.1007/s00289-016-1843-8 en Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf Springer |
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| language |
English |
| topic |
Antimicrobial activity Graphene oxide Titanium dioxide Polymer composite |
| spellingShingle |
Antimicrobial activity Graphene oxide Titanium dioxide Polymer composite Correa, Camila F. Santana, Luiza R. Silva, Ricardo M. Noremberg, Bruno S. Lund, Rafael G. Ribeiro, Juliana S. Motta, Fabiana Villela da Delmonte, Maurício Roberto Bomio Nascimento, Rubens Maribondo do Carreño, Neftalí Lênin Villarreal Antimicrobial activity from polymeric composites-based polydimethylsiloxane/TiO2/GO: evaluation of filler synthesis and surface morphology |
| description |
Antimicrobial substances may be used to reduce hospital infections and
inhibit food contamination, thus ensuring the safety and well being of humans. The
objective of this study was to evaluate the antimicrobial activity of the polymeric
nanocomposites polydimethylsiloxane (PDMS) embedded with two types of fillers
based on titanium dioxide (commercial TiO2 P25 versus TiO2 via facile Micro-
wave-assisted hydrothermal-MAH synthesis) and graphene oxide (GO). The
nanocomposites were prepared using different compositions, concentrations, and
functionalizations (PDMS/TiO2/GO; PDMS/TiO2 and PDMS/GO). The antimicro-
bial activity of the samples was evaluated for different treatments on Candida
albicans, Staphylococcus aureus, and Enterococcus faecalis, by a modified direct
contact test (mDCT). The samples were also evaluated on surface morphology and
the roughness as a function of active particles insertion by atomic force microscopy
(AFM). Most of the PDMS films whose polymer was embedded with GO and
hydrothermal TiO2 showed the highest inhibition growth of bacteria and Candida
over 24 h. After 24 h, F, J, and H samples showed the best antibacterial activity,
whereas E showed the best antifungal activity. The results indicated that the
nanocomposites PDMS/GO/TiO2MAH and PDMS/GO sample enhanced antimi-
crobial activity in the treatments tested, therefore they were functional for con-
taminant reduction |
| format |
article |
| author |
Correa, Camila F. Santana, Luiza R. Silva, Ricardo M. Noremberg, Bruno S. Lund, Rafael G. Ribeiro, Juliana S. Motta, Fabiana Villela da Delmonte, Maurício Roberto Bomio Nascimento, Rubens Maribondo do Carreño, Neftalí Lênin Villarreal |
| author_facet |
Correa, Camila F. Santana, Luiza R. Silva, Ricardo M. Noremberg, Bruno S. Lund, Rafael G. Ribeiro, Juliana S. Motta, Fabiana Villela da Delmonte, Maurício Roberto Bomio Nascimento, Rubens Maribondo do Carreño, Neftalí Lênin Villarreal |
| author_sort |
Correa, Camila F. |
| title |
Antimicrobial activity from polymeric composites-based polydimethylsiloxane/TiO2/GO: evaluation of filler synthesis and surface morphology |
| title_short |
Antimicrobial activity from polymeric composites-based polydimethylsiloxane/TiO2/GO: evaluation of filler synthesis and surface morphology |
| title_full |
Antimicrobial activity from polymeric composites-based polydimethylsiloxane/TiO2/GO: evaluation of filler synthesis and surface morphology |
| title_fullStr |
Antimicrobial activity from polymeric composites-based polydimethylsiloxane/TiO2/GO: evaluation of filler synthesis and surface morphology |
| title_full_unstemmed |
Antimicrobial activity from polymeric composites-based polydimethylsiloxane/TiO2/GO: evaluation of filler synthesis and surface morphology |
| title_sort |
antimicrobial activity from polymeric composites-based polydimethylsiloxane/tio2/go: evaluation of filler synthesis and surface morphology |
| publisher |
Springer |
| publishDate |
2021 |
| url |
https://repositorio.ufrn.br/handle/123456789/44583 http://dx.doi.org/10.1007/s00289-016-1843-8 |
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