Properties of adsorption of vitamin B12 on nanoclay as a versatile carrier
| Autor: | Mozhgan Akbari Alavijeh, Mehdi Nasiri Sarvi, Zahra Ramazani Afarani |
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| Rok vydání: | 2016 |
| Předmět: |
Kinetics
Nanoparticle 020101 civil engineering 02 engineering and technology 0201 civil engineering Analytical Chemistry Diffusion chemistry.chemical_compound Adsorption Cations Polymer chemistry Surface charge chemistry.chemical_classification Chemistry Biomolecule Cationic polymerization General Medicine 021001 nanoscience & nanotechnology Vitamin B 12 Montmorillonite Chemical engineering Bentonite Nanoparticles 0210 nano-technology Food Science |
| Zdroj: | Food chemistry. 219 |
| ISSN: | 1873-7072 |
| Popis: | In this study properties of adsorption of vitamin B12 onto nanoclay were investigated. Results of kinetics of adsorption were used to investigate the structural formation and nature of interaction of vitamin B12 onto montmorillonite as a carrier. The results showed that at the early stages of adsorption with migration of interlayer cations of montmorillonite (Ca2+and Na+) to the edges a cationic bridge was formed and the vitamin biomolecules were adsorbed at the edges of montmorillonite. By increasing the adsorption duration, vitamin B12 molecules gradually diffused in between montmorillonite layers. Such diffusion was facilitated when enough interaction existed between montmorillonite surface charges and vitamin biomolecules. The results of this study provided information about controlling the adsorption properties of biomolecules to the montmorillonite for preparation of nano-engineered nano/biomaterials for food and pharmaceutical applications. |
| Databáze: | OpenAIRE |
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