Interaction of tetradecyltrimethylammonium bromide with bovine serum albumin in different compositions: Effect of temperatures and electrolytes/urea

Joynal Abedin; Shamim Mahbub; Mohammad Majibur Rahman; Anamul Hoque; Dileep Kumar; Javed Masood Khan; Ahmed M. El-Sherbeeny

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Interaction of tetradecyltrimethylammonium bromide with bovine serum albumin in different compositions: Effect of temperatures and electrolytes/urea

Chemical Engineering Thermodynamics | Updated：2026-01-06

- Interaction of tetradecyltrimethylammonium bromide with bovine serum albumin in different compositions: Effect of temperatures and electrolytes/urea
- Chinese Journal of Chemical Engineering Vol. 29, Issue 1, Pages: 279-287(2021)
- Affiliations：
  
  1. Department of Chemistry, Jahangirnagar University, Savar,Dhaka,Bangladesh,1342
  2. Department of Chemistry & Physics, Gono Bishwabidyalay, Savar,Dhaka,Bangladesh,1344
  3. Department of Environmental Sciences, Jahangirnagar University, Savar,Dhaka,Bangladesh,1342
  4. Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Viet Nam
  5. Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Viet Nam
  6. Department of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University, 2460, Riyadh 11451, Saudi Arabia
  7. Industrial Engineering Department, College of Engineering, King Saud University, P. O. Box 800, Riyadh 11421, Saudi Arabia
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2021
- Accepted：
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Joynal Abedin, Shamim Mahbub, Mohammad Majibur Rahman, Anamul Hoque, Dileep Kumar, Javed Masood Khan, Ahmed M. El-Sherbeeny. Interaction of tetradecyltrimethylammonium bromide with bovine serum albumin in different compositions: Effect of temperatures and electrolytes/urea[J]. Chinese Journal of Chemical Engineering, 2021, 29(1): 279-287.
DOI：

Joynal Abedin, Shamim Mahbub, Mohammad Majibur Rahman, Anamul Hoque, Dileep Kumar, Javed Masood Khan, Ahmed M. El-Sherbeeny. Interaction of tetradecyltrimethylammonium bromide with bovine serum albumin in different compositions: Effect of temperatures and electrolytes/urea[J]. Chinese Journal of Chemical Engineering, 2021, 29(1): 279-287. DOI：

摘要

Abstract

Herein

the interaction of a protein

bovine serum albumin (BSA)

with tetradecyltrimethylammonium bromide (TTAB

a cationic surfactant)

has been investigated using the conductivity measurement technique in pure water and some sodium salts (NaCl

and Na

) solutions at temperature range of 295.15-320.15 K. Results reveal that

in the plot of specific conductivity

versus

the concentration of TTAB

only a single critical micelle concentration (

cmc

) was found for the TTAB + BSA mixed system in all solvents media studied. The addition of BSA in aqueous TTAB solution

the value of

cmc

undergoes a change from its pure form

which indicates the presence of strong interaction operating between the BSA and TTAB molecules. In aqueous system

the

cmc

values of the TTAB + BSA mixtures are obtained higher compared to the values found for single TTAB surfactant. However

the addition of salt decreases the

cmc

value of mixed TTAB + BSA system. The values of

cmc

of the BSA + TTAB mixed system at 310.15 K and 1.00 mmol·kg

-1

ionic strength of salt followed the order:

cmc

NaCl

cmc

. The

cmc

values of TTAB + BSA mixture were found to be lowered in urea solution within the concentrations studied. The values of degree of dissociation (

) and fraction of counter ion binding (

) were found to be dependent on additives and temperature. The free energy of micellization (△

) is negative for all the systems

which manifests that the micellization phenomenon is energetically spontaneous. The enhancement of the negative value of △

in aqueous salt solutions reveals an increase of spontaneity of the TTAB + BSA micellization process. The values of △

also reveal that the spontaneity of micelle formation is enhanced at higher temperatures in all media studied. The values of free energy of transfer (△

) were also determined for numerous solvent media used in the present study and described with appropriate reasoning.

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