دورية أكاديمية
Can the Isothermal Calorimetric Curve Shapes Suggest the Structural Changes in Micellar Aggregates?
| العنوان: | Can the Isothermal Calorimetric Curve Shapes Suggest the Structural Changes in Micellar Aggregates? |
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| المؤلفون: | Katarzyna Łudzik, Sebastian Woloszczuk, Wojciech Zając, Monika Jazdzewska, Andrey Rogachev, Alexander Ivanowicz Kuklin, Anna Zawisza, Małgorzata Jóźwiak |
| المصدر: | International Journal of Molecular Sciences, Vol 21, Iss 16, p 5828 (2020) |
| بيانات النشر: | MDPI AG, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Biology (General) LCC:Chemistry |
| مصطلحات موضوعية: | SANS, SAXS, ITC curve shape, micellar aggregates, gemini surfactants, structural changes, Biology (General), QH301-705.5, Chemistry, QD1-999 |
| الوصف: | Inspired by the unusual shapes of the titration curve observed for many surfactants and mixed colloidal systems, we decided to extend the analysis to isothermal titration calorimetric curves (ITC) by paying special attention to potential structural changes in micellar aggregates. In this paper, we used isothermal titration calorimetry in conjunction with Scanning Transmission Electron Microscopy (STEM), Small-Angle Neutron Scattering (SANS) and X-ray Scattering (SAXS) methods support by Monte Carlo and semiempirical quantum chemistry simulations to confirm if the isothermal calorimetric curve shape can reflect micelle transition phenomena. For that purpose, we analysed, from the thermodynamic point of view, a group of cationic gemini surfactants, alkanediyl-α,ω-bis(dimethylalkylammonium) bromides. We proposed the shape of aggregates created by surfactant molecules in aqueous solutions and changes thereof within a wide temperature range. The results provide evidence for the reorganization processes and the relationship (dependence) between the morphology of the created aggregates and the conditions such as temperature, surfactant concentration and spacer chain length which affect the processes. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1422-0067 1661-6596 |
| Relation: | https://www.mdpi.com/1422-0067/21/16/5828; https://doaj.org/toc/1661-6596; https://doaj.org/toc/1422-0067 |
| DOI: | 10.3390/ijms21165828 |
| URL الوصول: | https://doaj.org/article/bc8ef4766e99437d9c76cee72b75f532 |
| رقم الأكسشن: | edsdoj.bc8ef4766e99437d9c76cee72b75f532 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 14220067 16616596 |
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| DOI: | 10.3390/ijms21165828 |