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Interaction of cetyltrimethylammonium bromide with drug in aqueous/electrolyte solution:A combined conductometric and molecular dynamics method study

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Chinese Journal of Chemical Engineering 2018年第1期26卷 159-167页

作者： Md.Anamul Hoque Md.Masud Alam Mohammad Robel Molla shahed rana Malik Abdul Rub Mohammad A.Halim Mohammed Abdullah Khan Farida Akhtar Department of Chemistry Jahangirnagar UniversitySavarDhaka 1342Bangladesh Chemistry Department Faculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia Center of Excellence for Advanced Materials Research King Abdulaziz UniversityJeddah 21589Saudi Arabia Division of Quantum Chemistry BICCBThe Red-Green Computing Centre218 Elephant RoadDhaka 1205Bangladesh Institut Lumière Matière Université Lyon 1-CNRSUniversitéde Lyon69622 Villeurbanne CedexFrance

Interaction between beta-lactum antibiotic drug ciprofloxacin hydrochloride(CFH)and cationic surfactant cetyltrimethylammonium bromide(CTAB)was performed conductometrically in aqueous as well as in the occurrence of different salts(NaCl,KCl as well as NH_4Cl)over the temperature range of 298.15–323.15 K at the regular interval of 5 *** drug has been suggested for the treatment of bacterial infections such as urinary tract infections and acute sinusitis.A clear critical micelle concentration(CMC)was obtained for pure CTAB as well as(CFH+CTAB)mixed *** decrease in CMC values of CTAB caused by the addition of CFH reveals the existence of the interaction between the components and therefore it is the indication of micelle formation at lower concentration of CTAB and their CMC values further decrease in attendance of salts.A nonlinear behavior in the CMC versus T plot was observed in all the *** ΔG_m^0 values are found to be negative in present study systems demonstrated the stability of the *** values of ΔH_m^0 and ΔS_m^0 reveal the existence of hydrophobic and electrostatic interactions between CFH and *** thermodynamic properties of transfer for the micellization were also evaluated and discussed in *** dynamic simulation disclosed that environment of water and salts have impact on the hydrophobic interaction between CFH and *** water and salts,CTAB adopts spherical micelle in which charged hydrophilic groups are interacted with waters whereas hydrophobic tails form the core of the *** hydrophobic core region is highly conserved and *** addition,micelle formation is more favorable in aqueous Na Cl solution than other solutions.

关键词： Ciprofloxacin hydrochloride Cetyltrimethylammonium bromide Molecular dynamics Flydrophobic interaction Salt effect

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