Time-Course Study of the Antibacterial Activity of an Amorphous SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> Coating Certified for Food Contact
One of the most-used food contact materials is stainless steel (AISI 304L or AISI 316L), owing to its high mechanical strength, cleanability, and corrosion resistance. However, due to the presence of minimal crevices, stainless-steel is subject to microbial contamination with consequent significant...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Antibiotics |
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| Online Access: | https://www.mdpi.com/2079-6382/10/8/901 |
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| author | Alessandro Di Cerbo Giuseppe Rosace Stefano Rea Roberta Stocchi Julio Cesar Morales-Medina Roberto Canton Andrea Mescola Carla Condò Anna Rita Loschi Carla Sabia |
| author_facet | Alessandro Di Cerbo Giuseppe Rosace Stefano Rea Roberta Stocchi Julio Cesar Morales-Medina Roberto Canton Andrea Mescola Carla Condò Anna Rita Loschi Carla Sabia |
| author_sort | Alessandro Di Cerbo |
| collection | DOAJ |
| description | One of the most-used food contact materials is stainless steel (AISI 304L or AISI 316L), owing to its high mechanical strength, cleanability, and corrosion resistance. However, due to the presence of minimal crevices, stainless-steel is subject to microbial contamination with consequent significant reverb on health and industry costs due to the lack of effective reliability of sanitizing agents and procedures. In this study, we evaluated the noncytotoxic effect of an amorphous SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> coating deposited on stainless-steel disks and performed a time-course evaluation for four Gram-negative bacteria and four Gram-positive bacteria. A low cytotoxicity of the SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> coating was observed; moreover, except for some samples, a five-logarithm decrease was visible after 1 h on coated surfaces without any sanitizing treatment and inoculated with Gram-negative and Gram-positive bacteria. Conversely, a complete bacterial removal was observed after 30 s<sup>−1</sup> min application of alcohol and already after 15 s under UVC irradiation against both bacterial groups. Moreover, coating deposition changed the wetting behaviors of treated samples, with contact angles increasing from 90.25° to 113.73°, realizing a transformation from hydrophilicity to hydrophobicity, with tremendous repercussions in various technological applications, including the food industry. |
| first_indexed | 2024-03-10T09:04:14Z |
| format | Article |
| id | doaj.art-5033bea574674be1bfebaf7b92c297c2 |
| institution | Directory Open Access Journal |
| issn | 2079-6382 |
| language | English |
| last_indexed | 2024-03-10T09:04:14Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Antibiotics |
| spelling | doaj.art-5033bea574674be1bfebaf7b92c297c22023-11-22T06:33:00ZengMDPI AGAntibiotics2079-63822021-07-0110890110.3390/antibiotics10080901Time-Course Study of the Antibacterial Activity of an Amorphous SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> Coating Certified for Food ContactAlessandro Di Cerbo0Giuseppe Rosace1Stefano Rea2Roberta Stocchi3Julio Cesar Morales-Medina4Roberto Canton5Andrea Mescola6Carla Condò7Anna Rita Loschi8Carla Sabia9School of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, ItalyDepartment of Engineering and Applied Sciences, University of Bergamo, 24044 Dalmine, ItalySchool of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, ItalySchool of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, ItalyCentro de Investigación en Reproducción Animal, CINVESTAV-Universidad Autónoma de Tlaxcala, AP 62, Tlaxcala 90000, MexicoMoma Nanotech Srl, 20861 Brugherio, ItalyCNR-Nanoscience Institute-S3, 62024 Modena, ItalyDepartment of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, ItalySchool of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, ItalyDepartment of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, ItalyOne of the most-used food contact materials is stainless steel (AISI 304L or AISI 316L), owing to its high mechanical strength, cleanability, and corrosion resistance. However, due to the presence of minimal crevices, stainless-steel is subject to microbial contamination with consequent significant reverb on health and industry costs due to the lack of effective reliability of sanitizing agents and procedures. In this study, we evaluated the noncytotoxic effect of an amorphous SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> coating deposited on stainless-steel disks and performed a time-course evaluation for four Gram-negative bacteria and four Gram-positive bacteria. A low cytotoxicity of the SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> coating was observed; moreover, except for some samples, a five-logarithm decrease was visible after 1 h on coated surfaces without any sanitizing treatment and inoculated with Gram-negative and Gram-positive bacteria. Conversely, a complete bacterial removal was observed after 30 s<sup>−1</sup> min application of alcohol and already after 15 s under UVC irradiation against both bacterial groups. Moreover, coating deposition changed the wetting behaviors of treated samples, with contact angles increasing from 90.25° to 113.73°, realizing a transformation from hydrophilicity to hydrophobicity, with tremendous repercussions in various technological applications, including the food industry.https://www.mdpi.com/2079-6382/10/8/901food contact materialstainless steelSiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> coatinghydrophobicityantibacterial activity |
| spellingShingle | Alessandro Di Cerbo Giuseppe Rosace Stefano Rea Roberta Stocchi Julio Cesar Morales-Medina Roberto Canton Andrea Mescola Carla Condò Anna Rita Loschi Carla Sabia Time-Course Study of the Antibacterial Activity of an Amorphous SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> Coating Certified for Food Contact Antibiotics food contact material stainless steel SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> coating hydrophobicity antibacterial activity |
| title | Time-Course Study of the Antibacterial Activity of an Amorphous SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> Coating Certified for Food Contact |
| title_full | Time-Course Study of the Antibacterial Activity of an Amorphous SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> Coating Certified for Food Contact |
| title_fullStr | Time-Course Study of the Antibacterial Activity of an Amorphous SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> Coating Certified for Food Contact |
| title_full_unstemmed | Time-Course Study of the Antibacterial Activity of an Amorphous SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> Coating Certified for Food Contact |
| title_short | Time-Course Study of the Antibacterial Activity of an Amorphous SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> Coating Certified for Food Contact |
| title_sort | time course study of the antibacterial activity of an amorphous sio sub x sub c sub y sub h sub z sub coating certified for food contact |
| topic | food contact material stainless steel SiO<sub>x</sub>C<sub>y</sub>H<sub>z</sub> coating hydrophobicity antibacterial activity |
| url | https://www.mdpi.com/2079-6382/10/8/901 |
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