نتایج جستجو برای: coacervation
تعداد نتایج: 376 فیلتر نتایج به سال:
Nanoparticles removal from seawage water is a health and environmental challenge, due to the increasing use of these materials excellent colloidal stability. Herein we hypothesize reach this objective through complex coacervation, straightforward, low-cost process, normally accomplished with non-toxic biodegradable macromolecules. Highly dense polymer-rich droplets (the coacervates) obtained re...
Microspheres (MS) of Ketorolac Tromethamine (KT) for oral delivery were prepared by complex coacervation (method-1) and simple coacervation (method-2) methods without the use of chemical crossâlinking agent (glutaraldehyde) to avoid the toxic reactions and other undesirable effects of the chemical cross-linking agents. Alternatively, ionotropic gelation was employed by using sodium-tripolyphosp...
Complex coacervation is defined as associative interactions between oppositely charged functional groups of proteins and polysaccharides, which on separation, form a phase rich in polymeric compounds in equilibrium with another aqueous phase. So coacervates are macro-ionic hydrated complexes of two charged neutralized bioploymers. Voorn and Overbeek developed the first model on complex coacerva...
The objectives of this study were to fabricate cefixime-loaded chitosan microspheres with the ultimate goal of prolonging drug release and to analyze the influence of various process variables on the properties of microspheres such as mode of drug release. The cefixime-loaded chitosan microspheres were fabricated using a coacervation technique. Various process variables like volume of solvent f...
Omega-3 oil from fish can be stabilised against oxidation using a variety of microencapsulation technologies. Complex coacervation has been used and found to be commercially useful for fortifying foods and beverages with long-chain omega-3 containing oils. Here we report a comparative human bioavailability study of microencapsulated omega-3 fish oil and standard fish-oil soft-gel capsules. Phos...
A new method of preparing ionically cross-linked polyphosphazene hydrogel microspheres which enables effective control over microsphere size distribution has been developed. The synthesized microspheres can be used in protein delivery and, especially, as vaccine delivery vehicles. A new technique utilizes the ability of aqueous solutions of poly[di(carboxylatophenoxy)phosphazene] (PCPP) to form...
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