Modeling of the Van Der Waals Forces during the Adhesion of Capsule-Shaped Bacteria to Flat Surfaces
A novel model is developed to evaluate the van der Waals (vdW) interactions between a capsule shaped bacterium (<i>P. putida</i>) and flat minerals plates in different approach profiles: Vertically and horizontally. A comparison of the approaches to the well-developed spherical particle...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Biomimetics |
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| Online Access: | https://www.mdpi.com/2313-7673/6/1/5 |
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| author | Fathiah Mohamed Zuki Robert G. J. Edyvean Hamed Pourzolfaghar Norherdawati Kasim |
| author_facet | Fathiah Mohamed Zuki Robert G. J. Edyvean Hamed Pourzolfaghar Norherdawati Kasim |
| author_sort | Fathiah Mohamed Zuki |
| collection | DOAJ |
| description | A novel model is developed to evaluate the van der Waals (vdW) interactions between a capsule shaped bacterium (<i>P. putida</i>) and flat minerals plates in different approach profiles: Vertically and horizontally. A comparison of the approaches to the well-developed spherical particle to mineral surface (semi-infinite wall and spherical) approach has been made in this investigation. The van der Waals (vdW) interaction potentials for a capsule-shaped bacterium are found using Hamaker’s microscopic approach of sphere to plate and cylinder to plate either vertically or horizontally to the flat surface. The numerical results show that a horizontal orientated capsule shaped bacterium to mineral surface interaction was more attractive compared to a capsule shaped bacterium approaching vertically. The orientation of the bacterial approaching a surface as well as the type and topology of the mineral influence the adhesion of a bacteria to that surface. Furthermore, the density difference among each type of bacteria shape (capsule, cylinder, and sphere) require different amounts of energy to adhere to hematite and quartz surfaces. |
| first_indexed | 2024-03-09T05:41:01Z |
| format | Article |
| id | doaj.art-35d29a30be404b8095b0db28cd1080ac |
| institution | Directory Open Access Journal |
| issn | 2313-7673 |
| language | English |
| last_indexed | 2024-03-09T05:41:01Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biomimetics |
| spelling | doaj.art-35d29a30be404b8095b0db28cd1080ac2023-12-03T12:25:12ZengMDPI AGBiomimetics2313-76732021-01-0161510.3390/biomimetics6010005Modeling of the Van Der Waals Forces during the Adhesion of Capsule-Shaped Bacteria to Flat SurfacesFathiah Mohamed Zuki0Robert G. J. Edyvean1Hamed Pourzolfaghar2Norherdawati Kasim3Department of Chemical Engineering, University of Malaya, Kuala Lumpur 50603, MalaysiaDepartment of Chemical and Biological Engineering, University of Sheffield, Newcastle Street, Sheffield S1 3JD, UKDepartment of Chemical Engineering, University of Malaya, Kuala Lumpur 50603, MalaysiaDepartment of Chemistry and Biology, Center for Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, Kuala Lumpur 57000, MalaysiaA novel model is developed to evaluate the van der Waals (vdW) interactions between a capsule shaped bacterium (<i>P. putida</i>) and flat minerals plates in different approach profiles: Vertically and horizontally. A comparison of the approaches to the well-developed spherical particle to mineral surface (semi-infinite wall and spherical) approach has been made in this investigation. The van der Waals (vdW) interaction potentials for a capsule-shaped bacterium are found using Hamaker’s microscopic approach of sphere to plate and cylinder to plate either vertically or horizontally to the flat surface. The numerical results show that a horizontal orientated capsule shaped bacterium to mineral surface interaction was more attractive compared to a capsule shaped bacterium approaching vertically. The orientation of the bacterial approaching a surface as well as the type and topology of the mineral influence the adhesion of a bacteria to that surface. Furthermore, the density difference among each type of bacteria shape (capsule, cylinder, and sphere) require different amounts of energy to adhere to hematite and quartz surfaces.https://www.mdpi.com/2313-7673/6/1/5bacterial adhesioncapsule-shaped bacteriapseudomonas putidasurface energyvan der Waals forces |
| spellingShingle | Fathiah Mohamed Zuki Robert G. J. Edyvean Hamed Pourzolfaghar Norherdawati Kasim Modeling of the Van Der Waals Forces during the Adhesion of Capsule-Shaped Bacteria to Flat Surfaces Biomimetics bacterial adhesion capsule-shaped bacteria pseudomonas putida surface energy van der Waals forces |
| title | Modeling of the Van Der Waals Forces during the Adhesion of Capsule-Shaped Bacteria to Flat Surfaces |
| title_full | Modeling of the Van Der Waals Forces during the Adhesion of Capsule-Shaped Bacteria to Flat Surfaces |
| title_fullStr | Modeling of the Van Der Waals Forces during the Adhesion of Capsule-Shaped Bacteria to Flat Surfaces |
| title_full_unstemmed | Modeling of the Van Der Waals Forces during the Adhesion of Capsule-Shaped Bacteria to Flat Surfaces |
| title_short | Modeling of the Van Der Waals Forces during the Adhesion of Capsule-Shaped Bacteria to Flat Surfaces |
| title_sort | modeling of the van der waals forces during the adhesion of capsule shaped bacteria to flat surfaces |
| topic | bacterial adhesion capsule-shaped bacteria pseudomonas putida surface energy van der Waals forces |
| url | https://www.mdpi.com/2313-7673/6/1/5 |
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