pH sensitive adsorption of polypeptide/sodium dodecyl sulfate mixtures.
Neutron reflectivity and surface tension have been used to investigate the pH sensitivity of the adsorption of poly-L-lysine hydrobromide and sodium dodecyl sulfate mixtures at the air-solution interface. The surface tension variation with surfactant concentration is complex, and between the critica...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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2006
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| _version_ | 1826289618648039424 |
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| author | Penfold, J Tucker, I Thomas, R Taylor, D Zhang, X |
| author_facet | Penfold, J Tucker, I Thomas, R Taylor, D Zhang, X |
| author_sort | Penfold, J |
| collection | OXFORD |
| description | Neutron reflectivity and surface tension have been used to investigate the pH sensitivity of the adsorption of poly-L-lysine hydrobromide and sodium dodecyl sulfate mixtures at the air-solution interface. The surface tension variation with surfactant concentration is complex, and between the critical aggregation concentration and critical micellar concentration there is a marked increase in the surface tension. The neutron reflectivity results show that this is associated with a depletion of the surface of polypeptide/surfactant complexes. The variations in the adsorption and surface tension with pH are attributed to changes in the polypeptide conformation at the interface and in solution. |
| first_indexed | 2024-03-07T02:31:38Z |
| format | Journal article |
| id | oxford-uuid:a76c3932-039e-4112-931f-91d01b0c395e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:31:38Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:a76c3932-039e-4112-931f-91d01b0c395e2022-03-27T02:54:34ZpH sensitive adsorption of polypeptide/sodium dodecyl sulfate mixtures.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a76c3932-039e-4112-931f-91d01b0c395eEnglishSymplectic Elements at Oxford2006Penfold, JTucker, IThomas, RTaylor, DZhang, XNeutron reflectivity and surface tension have been used to investigate the pH sensitivity of the adsorption of poly-L-lysine hydrobromide and sodium dodecyl sulfate mixtures at the air-solution interface. The surface tension variation with surfactant concentration is complex, and between the critical aggregation concentration and critical micellar concentration there is a marked increase in the surface tension. The neutron reflectivity results show that this is associated with a depletion of the surface of polypeptide/surfactant complexes. The variations in the adsorption and surface tension with pH are attributed to changes in the polypeptide conformation at the interface and in solution. |
| spellingShingle | Penfold, J Tucker, I Thomas, R Taylor, D Zhang, X pH sensitive adsorption of polypeptide/sodium dodecyl sulfate mixtures. |
| title | pH sensitive adsorption of polypeptide/sodium dodecyl sulfate mixtures. |
| title_full | pH sensitive adsorption of polypeptide/sodium dodecyl sulfate mixtures. |
| title_fullStr | pH sensitive adsorption of polypeptide/sodium dodecyl sulfate mixtures. |
| title_full_unstemmed | pH sensitive adsorption of polypeptide/sodium dodecyl sulfate mixtures. |
| title_short | pH sensitive adsorption of polypeptide/sodium dodecyl sulfate mixtures. |
| title_sort | ph sensitive adsorption of polypeptide sodium dodecyl sulfate mixtures |
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