Glycosylation improves α-chymotrypsin stability upon encapsulation in poly(lactic-co-glycolic)acid microspheres
نویسندگان
چکیده
منابع مشابه
Glycosylation improves α-chymotrypsin stability upon encapsulation in poly(lactic-co-glycolic)acid microspheres
Enhancing protein stability upon encapsulation and release from polymers is a key issue in sustained release applications. In addition, optimum drug dispersion in the polymer particles is critical for achieving release profiles with low unwanted initial "burst" release. Herein, we address both issues by formulating the model enzyme α-chymotrypsin (α-CT) as nanoparticles to improve drug dispersi...
متن کاملEncapsulation of Naja –Naja Oxiana Snake venom into Poly (lactide-co-glycolide) microspheres
One small-scale double emulsion technique for incorporation of Naja- Naja oxiana venom into Poly (lactide-co-glycolide) (PLGA) microspheres were developed and optimized. The effects of high speed homogenization on the double emulsion stability, microsphere size, entrapment efficiency and In vitro release of venom were studied. A stable double emulsion was verified by homogenization method. Slow...
متن کاملApplication of a novel approach to prepare biodegradable polylactic-co-glycolic acid microspheres: surface liquid spraying.
A novel approach which had foreground of industrialization, surface liquid spraying, was studied in this paper to prepare biodegradable polylactic-co-glycolic acid (PLGA) microspheres for controlled release drug delivery system. To compare with the normal methods, the microspheres prepared by this approach were characterized by particle size distribution and photograph of microscope. The relati...
متن کاملMoisture-induced solid state instabilities in α-chymotrypsin and their reduction through chemical glycosylation
BACKGROUND Protein instability remains the main factor limiting the development of protein therapeutics. The fragile nature (structurally and chemically) of proteins makes them susceptible to detrimental events during processing, storage, and delivery. To overcome this, proteins are often formulated in the solid-state which combines superior stability properties with reduced operational costs. ...
متن کاملEncapsulation and release of -chymotrypsin from poly(glycerol adipate-co-- pentadecalactone) microparticles
Polymer based microparticles are increasingly becoming of interest for a variety of applications including drug delivery. Recently poly(glycerol adipate) (PGA) and poly(glycol adipate-co--pentadecalactone) have shown promise for delivery of dexamethasone phosphate and ibuprofen. In this paper the copolyester poly(glycol adipate-co--pentadecalactone) was evaluated as a colloidal delivery syste...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Results in Pharma Sciences
سال: 2012
ISSN: 2211-2863
DOI: 10.1016/j.rinphs.2012.08.001