In vivo measurement of the surface energy of human fingernail plates
This article was published in the International Journal of Cosmetic Science [© 2012 International Journal of Cosmetic Science] and the definite version is available at: http://discovery.ucl.ac.uk/1366902/1/nail_surface_energy_for_SOPwebsite.pdf
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© 2012 International Journal of Cosmetic Science
2016
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| Rochtain ar líne: | http://hdl.handle.net/10361/7090 http://doi.org/10.1111/j.1468-2494.2012.00711.x |
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10361-70902016-12-06T03:21:32Z In vivo measurement of the surface energy of human fingernail plates Zara, Sheikh, Murdan, Sudaxshina Poojary, Chitranjan Patel, Dilan R Fernandes, João Angarju Department of Pharmacy, BRAC University Nail Surface energy Hydration Abrasion Hoof This article was published in the International Journal of Cosmetic Science [© 2012 International Journal of Cosmetic Science] and the definite version is available at: http://discovery.ucl.ac.uk/1366902/1/nail_surface_energy_for_SOPwebsite.pdf The surface energy of the human nail plate is expected to influence the adhesion of microorganisms (and subsequent colonization and infections) as well as that of medicines (and subsequent drug permeation) and of cosmetics. The aim of the study was therefore to measure the surface energy of nail plates in vivo. The surface energy of healthy human fingernails (untreated, hydrated and abraded) and of hoof membranes (often used as a model for the nail plate) was estimated from contact angle measurements of liquids (water, formamide, diiodomethane and glycerol) on the nail plate and subsequent computation using the Lifshitz–van der Waals/acid–base (LW-AB) approach. The surface energy of untreated fingernail plates was found to be 34 mJ m−2. Most of this total energy was from the apolar Lifshitz–van der Waals component. When the polar component of the surface energy was analysed, the electron donor component was considerably larger than the electron acceptor one. Hydrating the nail plate had no significant influence on the surface energy. In contrast, abrasion caused a small, but statistically significant increase in the apolar surface energy component. The surface energy of bovine hoof membrane was similar to that of the fingernail plate. We conclude that the human fingernail plate is a low-energy surface and that bovine hoof membranes may be used as a substitute for the nail plate in certain experiments. Published 2016-12-03T20:49:30Z 2016-12-03T20:49:30Z 2012-03 Article S udaxshina , M., Poojary, C., R Patel, ilan, Fernandes, oão, Haman, A., Saundh, P. S., & Sheikh, Z. (2012). In vivo measurement of the surface energy of human fingernail plates . International Journal of Cosmetic Science, 34, (3) 257–262 . http://hdl.handle.net/10361/7090 http://doi.org/10.1111/j.1468-2494.2012.00711.x en http://discovery.ucl.ac.uk/1366902/1/nail_surface_energy_for_SOPwebsite.pdf © 2012 International Journal of Cosmetic Science |
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Brac University |
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Institutional Repository |
| language |
English |
| topic |
Nail Surface energy Hydration Abrasion Hoof |
| spellingShingle |
Nail Surface energy Hydration Abrasion Hoof Zara, Sheikh, Murdan, Sudaxshina Poojary, Chitranjan Patel, Dilan R Fernandes, João Angarju In vivo measurement of the surface energy of human fingernail plates |
| description |
This article was published in the International Journal of Cosmetic Science [© 2012 International Journal of Cosmetic Science] and the definite version is available at: http://discovery.ucl.ac.uk/1366902/1/nail_surface_energy_for_SOPwebsite.pdf |
| author2 |
Department of Pharmacy, BRAC University |
| author_facet |
Department of Pharmacy, BRAC University Zara, Sheikh, Murdan, Sudaxshina Poojary, Chitranjan Patel, Dilan R Fernandes, João Angarju |
| format |
Article |
| author |
Zara, Sheikh, Murdan, Sudaxshina Poojary, Chitranjan Patel, Dilan R Fernandes, João Angarju |
| author_sort |
Zara, Sheikh, |
| title |
In vivo measurement of the surface energy of human fingernail plates |
| title_short |
In vivo measurement of the surface energy of human fingernail plates |
| title_full |
In vivo measurement of the surface energy of human fingernail plates |
| title_fullStr |
In vivo measurement of the surface energy of human fingernail plates |
| title_full_unstemmed |
In vivo measurement of the surface energy of human fingernail plates |
| title_sort |
in vivo measurement of the surface energy of human fingernail plates |
| publisher |
© 2012 International Journal of Cosmetic Science |
| publishDate |
2016 |
| url |
http://hdl.handle.net/10361/7090 http://doi.org/10.1111/j.1468-2494.2012.00711.x |
| work_keys_str_mv |
AT zarasheikh invivomeasurementofthesurfaceenergyofhumanfingernailplates AT murdansudaxshina invivomeasurementofthesurfaceenergyofhumanfingernailplates AT poojarychitranjan invivomeasurementofthesurfaceenergyofhumanfingernailplates AT pateldilanr invivomeasurementofthesurfaceenergyofhumanfingernailplates AT fernandesjoao invivomeasurementofthesurfaceenergyofhumanfingernailplates AT angarju invivomeasurementofthesurfaceenergyofhumanfingernailplates |
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1814307614751719424 |