Formation of polysaccharide multilayer coatings on emulsion droplets
نویسندگان
چکیده
The sequential deposition of chitosan and pectin on a supported phospolipid bilayer was examined using a quartz crystal microbalance. Multilayer formation was observed. The coating of phospholipid-stabilized emulsion droplets through centrifugation in a stepped sucrose gradient, containing successive layers of pectin and chitosan, was then investigated. Microelectrophoresis of the emulsion droplets at different stages in the centrifugation revealed that the sign of the surface charge reversed on passing through each polymer layer, and was indicative of multilayer formation.
منابع مشابه
Stable nano-sized emulsions produced from soy protein and soy polysaccharide complexes.
In this research, a simple, green and effective strategy was developed to produce long-term stable oil in water emulsion from soy protein and soy polysaccharide. Soy protein and soy polysaccharide formed dispersible complexes at pH around 3.25 aqueous solution through electrostatic and hydrophobic interactions. A high pressure homogenization produced the protein/polysaccharide complex emulsion ...
متن کاملStudy of multilayer and multi-component coatings deposited using cathodic Arc technique on H-13 hot work steel for die-casting applications
Die casting process is used since long, but even today problems like erosion, corrosion, soldering and sticking affect die life. These dies undergo thermal cyclic loads from 70 oC to 600 oC during processing. Physical Vapor Deposition (PVD) hard coating can play an important role in such extreme applications. In the present work, we report the use of Chromium based multila...
متن کاملFormation and stability of Vitamin E nano-emulsion based delivery systems by spontaneous emulsification method: Glycerol as a co-solvent
There is considerable interest in using nano-emulsions (NEs) as delivery systems for lipophilicbioactive ingredients. In this study, the influence of G on the properties of vitamin E (VE) enriched NEsprepared using spontaneous emulsification (SE) method, were investigated. The particle size and optical clarityof the NEs depended strongly on the co-solvent presence, absence, an...
متن کاملA Review on Titanium Nitride and Titanium Carbide Single and Multilayer Coatings Deposited by Plasma Assisted Chemical Vapor Deposition
In this paper, we reviewed researches about the titanium nitride (TiN) and titanium carbide (TiC) single and multilayer coatings. These coatings were deposited by the plasma assisted chemical vapor deposition (PACVD) technique. Plasma-based technologies are used for the processing of thin films and coatings for different applications such as automobile and aerospace parts, computer disc drives,...
متن کاملEvaluation of Tool Performance With Nanocrystalline Multilayer Coatings on the Machinability of Superalloy Inconel 718
In this paper, the performance of the cutting tool with nanocrystalline multilayer coatings (TiN+TiAlN) for machining of superalloy Inconel 718 in the dry and wet conditions was studied. The multi layer TiN and TiAlN with nanocrystalline structure was applied by physical vapor deposition technique (arc evaporation) on the WC-Co inserts. The results of the ball on disc wear test and the machinin...
متن کامل