Adsorption Analysis of Exopolymeric Substances as a Tool for the Materials Selection of Photobioreactors Manufacture
An improved method that allows the robust characterization of surfaces is necessary to accurately predict the biofouling formation on construction materials of photobioreactors (PBR). Exopolymeric substances (EPS), such as proteins and polysaccharides, have been demonstrated to present a similar beh...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/23/22/13924 |
| _version_ | 1797465204228882432 |
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| author | Lucía García-Abad Yolanda Soriano-Jerez María del Carmen Cerón-García Alexandra Muñoz-Bonilla Marta Fernández-García Francisco García-Camacho Emilio Molina-Grima |
| author_facet | Lucía García-Abad Yolanda Soriano-Jerez María del Carmen Cerón-García Alexandra Muñoz-Bonilla Marta Fernández-García Francisco García-Camacho Emilio Molina-Grima |
| author_sort | Lucía García-Abad |
| collection | DOAJ |
| description | An improved method that allows the robust characterization of surfaces is necessary to accurately predict the biofouling formation on construction materials of photobioreactors (PBR). Exopolymeric substances (EPS), such as proteins and polysaccharides, have been demonstrated to present a similar behavior to cells in terms of surface adhesion. In this work, these EPS were used to optimize parameters, such as EPS concentration or adsorption time, to evaluate accurately the adsorption capacity of surfaces and, with it, predict the biofouling formation in contact with microalgae cultures. Once the method was optimized, the characterization of seven commercial polymeric surfaces was submitted to different abrasive particles sizes, which modified the roughness of the samples, as well as protein and polysaccharide lawns, which were prepared and carried out in order to evaluate the characteristics of these substances. The characterization consisted of the determination of surface free energy, water adhesion tension, and critical tension determined from the measurement of the contact angle, roughness, surface zeta potential, and the EPS adhesion capacity of each material. This will be useful to understand the behavior of the surface in the function of its characteristics and the interaction with the solutions of EPS, concluding that the hydrophobic and smooth surfaces present good anti-biofouling characteristics. |
| first_indexed | 2024-03-09T18:18:11Z |
| format | Article |
| id | doaj.art-ef8ebd534abd4037bce8fb89669fd65a |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-09T18:18:11Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-ef8ebd534abd4037bce8fb89669fd65a2023-11-24T08:35:39ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-11-0123221392410.3390/ijms232213924Adsorption Analysis of Exopolymeric Substances as a Tool for the Materials Selection of Photobioreactors ManufactureLucía García-Abad0Yolanda Soriano-Jerez1María del Carmen Cerón-García2Alexandra Muñoz-Bonilla3Marta Fernández-García4Francisco García-Camacho5Emilio Molina-Grima6Chemical Engineering Department, University of Almería, 04120 Almería, SpainChemical Engineering Department, University of Almería, 04120 Almería, SpainChemical Engineering Department, University of Almería, 04120 Almería, SpainInstitute of Polymer Science and Technology (ICTP-CSIC), 28006 Madrid, SpainInstitute of Polymer Science and Technology (ICTP-CSIC), 28006 Madrid, SpainChemical Engineering Department, University of Almería, 04120 Almería, SpainChemical Engineering Department, University of Almería, 04120 Almería, SpainAn improved method that allows the robust characterization of surfaces is necessary to accurately predict the biofouling formation on construction materials of photobioreactors (PBR). Exopolymeric substances (EPS), such as proteins and polysaccharides, have been demonstrated to present a similar behavior to cells in terms of surface adhesion. In this work, these EPS were used to optimize parameters, such as EPS concentration or adsorption time, to evaluate accurately the adsorption capacity of surfaces and, with it, predict the biofouling formation in contact with microalgae cultures. Once the method was optimized, the characterization of seven commercial polymeric surfaces was submitted to different abrasive particles sizes, which modified the roughness of the samples, as well as protein and polysaccharide lawns, which were prepared and carried out in order to evaluate the characteristics of these substances. The characterization consisted of the determination of surface free energy, water adhesion tension, and critical tension determined from the measurement of the contact angle, roughness, surface zeta potential, and the EPS adhesion capacity of each material. This will be useful to understand the behavior of the surface in the function of its characteristics and the interaction with the solutions of EPS, concluding that the hydrophobic and smooth surfaces present good anti-biofouling characteristics.https://www.mdpi.com/1422-0067/23/22/13924biofoulingexopolymeric substancessurfaces adsorption |
| spellingShingle | Lucía García-Abad Yolanda Soriano-Jerez María del Carmen Cerón-García Alexandra Muñoz-Bonilla Marta Fernández-García Francisco García-Camacho Emilio Molina-Grima Adsorption Analysis of Exopolymeric Substances as a Tool for the Materials Selection of Photobioreactors Manufacture International Journal of Molecular Sciences biofouling exopolymeric substances surfaces adsorption |
| title | Adsorption Analysis of Exopolymeric Substances as a Tool for the Materials Selection of Photobioreactors Manufacture |
| title_full | Adsorption Analysis of Exopolymeric Substances as a Tool for the Materials Selection of Photobioreactors Manufacture |
| title_fullStr | Adsorption Analysis of Exopolymeric Substances as a Tool for the Materials Selection of Photobioreactors Manufacture |
| title_full_unstemmed | Adsorption Analysis of Exopolymeric Substances as a Tool for the Materials Selection of Photobioreactors Manufacture |
| title_short | Adsorption Analysis of Exopolymeric Substances as a Tool for the Materials Selection of Photobioreactors Manufacture |
| title_sort | adsorption analysis of exopolymeric substances as a tool for the materials selection of photobioreactors manufacture |
| topic | biofouling exopolymeric substances surfaces adsorption |
| url | https://www.mdpi.com/1422-0067/23/22/13924 |
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