Open AccessEffect of quercetin on micellization behaviour of Tween-20 in hydro-ethanolic solvent system: An electrolyte induced thermodynamic study
Author(s) -
Vikrant Abbot,
Poonam Sharma
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1451/1/012013
Subject(s) - chemistry , electrolyte , enthalpy , thermodynamics of micellization , critical micelle concentration , pulmonary surfactant , quercetin , micelle , gibbs free energy , thermodynamics , solvent , ionic bonding , inorganic chemistry , aqueous solution , organic chemistry , ion , biochemistry , physics , electrode , antioxidant
The thermodynamic studies for non-ionic surfactant Tween-20 has been performed in presence of a well known flavonoid quercetin. The conductivity studies have been carried out with different concentrations of quercetin in 30% v/v ethanolic solution at five different temperatures (20 °C to 40 °C with difference of 5 °C). Since Tween-20 is non-ionic in nature, 1% w/v sodium chloride solution has been added as an electrolyte. Critical micelle concentration (CMC) and X CMC values as a function of temperature have been determined from conductance studies. Furthermore, various thermodynamic parameters viz . change in enthalpy (ΔH° m ), entropy (ΔS° m ) and Gibb’s free energy (ΔG° m ) of micellization have been calculated. Overall, the changes in micellization process of Tween-20 in presence of quercetin has been studied and reported.