Binary mixture of short and long chain glycolipids and its enhanced surface activity
| Autor: | Vinita Solanki, Divya Patel, Snehal Ashokrao Holey, Kanaparedu P. C. Sekhar, Rati Ranjan Nayak |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Chemistry
02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Surface pressure 01 natural sciences 0104 chemical sciences carbohydrates (lipids) Surface tension Colloid and Surface Chemistry Glycolipid Pulmonary surfactant Chemical engineering Critical micelle concentration Amphiphile lipids (amino acids peptides and proteins) Wetting Solubility 0210 nano-technology |
| Zdroj: | Colloids and Surfaces A: Physicochemical and Engineering Aspects. 601:125008 |
| ISSN: | 0927-7757 |
| Popis: | Biocompatible amphiphiles with high surface activity have received immense importance in the area of surfactant science with allied applications. Preparation of bio-based amphiphiles with predefined surface properties is not always economically viable. The structural variations in the glycolipid molecule like increase in hydrophobic chain length or headgroup size leads to low solubility or less surface activity issues at the air–water interface. In this work, we made an attempt to prepare a mixture of two glycolipids at various hydrophobic chain lengths. The air–water interfacial behaviors of mixed glycolipid systems were investigated by surface tension (ST) and Langmuir–Blodgett (LB) techniques. Surface parameters like critical micellar concentration (CMC), surface pressure, and area per molecule of the mixed glycolipids at air–water interface obtained from ST and LB studies were discussed. Surface-active properties, such as foaming, wetting, emulsification, and solubilization capacity were employed at different mole fraction of short chain glycolipid (χSGL) to explore synergistic and antagonistic interactions between the hydrophobic chains of glycolipids. At χSGL = 0.25, few mixed glycolipid systems exhibited significantly better surface properties than the corresponding pure glycolipids. The mixed glycolipid system provided enhanced surface activity at air–water interface. The mixing ratio at χSGL = 0.25 exhibited synergism in interfacial properties by inducing the chain length compatibility between glycolipids. The outcomes provide basis for glycolipids to select as mixed surfactants with improved interfacial efficiency. |
| Databáze: | OpenAIRE |
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