Effect of bovine serum albumin on the surface properties of ionic liquid-type Gemini surfactant |
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| Authors: | Meena Kumari Upendra Kumar Singh Abbul Bashar Khan Maqsood Ahmad Malik |
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| Affiliation: | 1. Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, India;2. Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia |
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| Abstract: | The effect of bovine serum albumin on the surface properties of IL-type gemini surfactant ([C10-4-C10im]Br2), have been investigated by surface tension method. The critical micelle concentration (CMC) as a function of BSA concentrations at various temperatures was investigated. The CMC of [C10-4-C10im]Br2 increases with increasing the concentration of BSA as well as the temperature of the system. The interfacial parameters viz; maximum surface excess concentration (Γmax), the minimum area per molecule (Amin), and surface pressure at CMC (Πcmc) were calculated. In addition, thermodynamic parameters of adsorption and micellization were evaluated by using surface tension data. The results indicated that the binding of [C10-4-C10im]Br2 to BSA is spontaneous and exothermic in nature. The process is entropy driven and hydrophobic interactions are the major driving forces. |
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| Keywords: | Bovine serum albumin critical micelle concentration IL-type gemini surfactant maximum surface excess concentration minimum area per molecule |
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