نتایج جستجو برای: controlled release profile
تعداد نتایج: 789107 فیلتر نتایج به سال:
Mesoporous phosphosilicate nanoparticles of hollow sphere architecture have been prepared hydrothermally for the first time under acidic pH conditions and this material is found to be efficient in encapsulating an antibiotic drug and its controlled release at physiological pH for possible cargo delivery applications.
The aim of the study presented is to formulate and evaluate Acarbose controlled release matrix tablets by means of different grades of polymer Ethocel and different co-excipients with the intention to see their effects on drug release profile during in vitro dissolution studies. Controlled release dosage forms is gaining rapid popularity due to its positive aspect of reduction in dosage frequen...
An unprecedented enantioselective oxetane opening with chloride provides access to a range of highly functionalized three-carbon building blocks. The excellent enantiocontrol is enabled not only by a new catalyst, but also by the unusual use of wet molecular sieves for the controlled release of HCl.
Controlled release (CR) formulations have generally been considered as follow-ons to conventional immediate release formulations to manage the life cycle of a product. Although significant opportunities exist to use CR as an enabling technology for certain exploratory drug candidates, they have not been fully exploited. However, progress made in assessing CR feasibility based on the physicochem...
ficial outdoor pond to maintain constant temperature. Technical grade nonylphenol (Sigma, Aldrich) was applied using a controlled release technique (Pfister et al. 1999) to maintain different levels of nonylphenol concentrations (9 to 112 gg/L) in the water column. The microcosms were set up in May. The application period started in June and lasted 45 days, followed by a period without applicat...
We have performed a comparison of magnetoresistance and structure of epitaxial and textured Fe/Cr superlattices grown by molecular-beam epitaxy ~MBE! and magnetron sputtering with either ~110! and ~100! orientations on a variety of substrates. MBE samples grown along the ~100! orientation, exhibit narrower rocking curves ~mosaic spread! and lower saturation resistivities than sputtered samples....
this study was performed to design bilayer regioselective floating tablets of atenolol and lovastatin to give immediate release of lovastatin and sustained release of atenolol. bilayer floating tablets comprised two layers, i.e immediate release and controlled release layers. the immediate release layer comprised sodium starch glycollate as a super disintegrant and the sustained release layer c...
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