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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kaur, Rajwinder Sanan, Reshu Mahajan, Rakesh Kumar |
| Description | Country affiliation: India Author Affiliation: Kaur R ( Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India.); Sanan R ( P.G. Department of Chemistry, Khalsa College, Amritsar 143001, India.); Mahajan RK ( Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India. Electronic address: rakesh_chem@yahoo.com.) |
| Abstract | Keeping in view the role of neurotransmitters (NTs) in central nervous system diseases and in controlling various physiological processes, present study is aimed to study the binding of neurotransmitters (NTs) such as norepinephrine hydrochloride (NE) and serotonin hydrochloride (5-HT) with twin tailed surfactant sodium bis(2-ethylhexyl)sulfosuccinate (AOT). Spectroscopic and electrochemical measurements combined with microcalorimetric measurements were used to characterize the interactions between AOT and NTs. Meteoric modifications to emission profile and absorption spectra of NTs upon addition of AOT are indicative of the binding of NTs with AOT. Distinct interactional states such as formation of ion-pairs, induced and regular micelles with adsorbed NTs molecules have been observed in different concentration regimes of AOT. The formation of ion-pairs from oppositely charged NTs and AOT is confirmed by the reduced absorbance, quenched fluorescence intensity and decrease in peak current (ipa) as well as shifts in peak potential (Epa) values. The stoichiometry and formation of the NTs-AOT complexes has been judged and the extent of interactions is quantitatively discussed in terms of binding constant (K) and free energy of binding (ΔG°). The enthalpy (ΔH°mic) and free energy of micellization (ΔG°mic) for AOT in presence and absence of NTs are determined from the enthalpy curves. |
| ISSN | 00219797 |
| Journal | Journal of Colloid and Interface Science |
| Volume Number | 469 |
| e-ISSN | 10957103 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-05-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Colloid & Interface Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Colloid and Surface Chemistry Biomaterials Electronic, Optical and Magnetic Materials |
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