Posts tagged with "FTIR"



08. October 2016
Abstract The number of topical fungal infections is growing, mostly owing to immunosuppressive therapy. Several topical fungal infections, such as eye mycoses, can be treated by local administration of antimycotic drugs. One major group of the antifungal agents is triazole, such as voriconazole (VCZ), which is used as the first line treatment of aspergillosis. A disadvantage of VCZ is its low water solubility making the drug difficult to administer in a liquid preparation. The lipid-based...
26. September 2016
Abstract The synthesis of pectin-silica gels for controlled drug release in gastrointestinal tract (GIT) using low methoxyl (LM) and high methoxy (HM) pectins and tetraethoxysilane (TEOS) as precursor is described. The FTIR spectra of the pectin-silica gels show intense absorption bands at 1246 cm−1 and 802 cm−1 corresponding to the vibrations single bondCsingle bondOsingle bondSisingle bond bonds, which absent in the FTIR spectra of the native pectins that indicate the formation covalent...
22. September 2016
Surface energies and dynamic vapour sorption (DVS) plays an imparative role in drug polymer interaction in the formulation development for a number of applications. Powdered films of two pH sensitive polymers namely hypromellose phthalate (HPMCP) and methacrylic acid copolymer NF (Eudragit L30-55) were studied for surface energy analysis employing inverse-phase gas chromatography (IGC) which is a well-known physi- cal technique in acquiring significant information about surfaces of...
24. June 2016
ABSTRACT Objective: The objective of this study is to develop extended release matrix tablet by taking mixture of chitosan and anionic polymers and then to study the drug release pattern for a low solubility drug Tramadol Hydrochloride (TH). TH has mean elimination half-life is ~6 hrs and requires dosing every 6 hrs in order to maintain optimal relief of chronic pain. So once-daily extended-release tablets are formulated by taking Chitosan (CS) and anionic polymers Eudragit-L100-55. Methods:...
26. December 2015
Dalbergia sissoo gum was purified by ethanol precipitation. The purified gum was modified and hydrolyzed. Gum was modified by performing polyacrylamide grafting and carboxymethylation methods. The hydrolysis was carried out by using mannanase, barium hydroxide and trifluoroacetic acid. More
29. July 2015
By: Ming Huang, Research Investigator IIRobert Wethman, Senior Research ScientistJohn Wasylyk, Principal ScientistBristol-Myers Squibb More