نتایج جستجو برای: controlled release system

تعداد نتایج: 2712692  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1392

nowadays, air pollution is a global problem that has had significant growth by technology development, population growth andindustrial development. industrial development brought natural resources deterioration, more manufacturing products, and more environmental pollutants. if pollutant won’t be controlled, human-being and wildlife will face the critical risks. significant release and critical...

Journal: :Journal of Japan Oil Chemists' Society 1985

Gowrav MP Shivakumar H.G. Umme Hani,

Hydrogel Based Metronidazole Bioadhesive Tablet (HMBT) was prepared as a novel vaginal delivery system to achieve Controlled release of drug from the tablet for vaginal candidiasis. The highly swollen hydrogel were prepared by dissolving chitosan in acetic acid solution containing drug, followed by neutralisation with sodium hydroxide and characterized by SEM, DSC and FT-IR and evaluated for % ...

2014
Christian Plewnia Andrej Dyck

A successful release engineering should allow for a fast and controlled release process. Consequently, shipping features earlier than competitors or avert damages more quickly might be beneficial for a software’s reputation. In this paper, we investigated the influence of release engineering on the user’s perception of software. To this end, we analyzed the release engineering practices and mar...

Journal: :research in pharmaceutical sciences 0

terbutaline sulfate exhibits extensive first pass metabolism and a short elimination half life which makes frequent oral administration of the drug inevitable. a novel buccoadhesive controlled delivery system of the drug can easily overcome the problem. a two-layered core tablet composed of a fast release layer made of mannitol, lactose, peg and the drug attached to a sustained release layer co...

Journal: :nanomedicine journal 0
mitra amoli-diva department of chemistry, payam noor university (pnu), tehran, iran kamyar pourghazi department of novel medical technologies, darupakhsh pharmaceutical co., tehran, iran

objective(s): pharmaceutical industries are leading to improved medications that can target diseases more effectively and precisely. researchers have intended to reformulate drugs so that they may be more safely used in human body. the more targeted a drug is, the lower its chance of triggering drug resistance, a cautionary concern surrounding the use of broad-spectrum antibiotics. the aim of t...

Journal: :journal of reports in pharmaceutical sciences 0
ehsan ahmadi behzad shabazi komail sadr javadi ali fattahi

a great challenge in using natural polysaccharide as drug delivery system is their fast drug release. the purpose of the present study was to prepare and evaluate chitosan oligosaccharide (cho)-de-estrifiedtragacanth (det) core-shell nanoparticles for controled release of water soluble drugs. cho-det nanoparticles were prepared by microemulsion method and characterized by ft-ir spectroscopy. si...

Journal: :physical chemistry research 0
massomeh ghorbanloo chemistry department, faculty of science, university of zanjan, zanjan, iran ali heydari department of chemistry, faculty of science, university of zanjan, 45371-38791 zanjan, ira

hydrogels, due to their unique potentials such as high-water content and hydrophilicity are interest for the controlled release of drug molecules. the present study aims to create a controlled-release system through the preparation and characterization of hydrogels based on ph-sensitive polymers such as poly (acrylic acid). poly (acrylic acid), p(aa), hydrogel has been synthesized by radical po...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2013
Alireza Abbaspourrad Sujit S Datta David A Weitz

We report a microfluidic approach to produce monodisperse pH-responsive microcapsules with precisely controlled release behavior. The solid microcapsule shells are composed of a biocompatible pH-responsive polymer and robustly encapsulate an active material; however, when exposed to a trigger pH, the shells degrade and ultimately release the microcapsule contents. We control the trigger pH by u...

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