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Showing 1-30 of 33 results for "200654" within Papers
Xin Li et al.
Die Pharmazie, 67(8), 695-700 (2012-09-11)
A novel osmotic pump tablet with ethyl cellulose (EC) and polyvinyl pyrrolidone (PVP) as the semipermeable membrane and isosorbide-5-mononitrate (5-ISMN) as the model drug was formulated in this study. Zero order release kinetics were attained by avoiding aging during storage.
Nahla S Barakat et al.
Drug development and industrial pharmacy, 39(2), 352-362 (2012-05-01)
Gliclazide (GLZ)-loaded microparticles made with a polymeric blend were prepared by a solvent evaporation technique. Organic solutions of two polymers, poly(ε-caprolactone) (PCL) and Eudragit RS (E RS) or ethyl cellulose (EC), in different weight ratios, and 33.3% of GLZ were
Daniela Traini et al.
International journal of pharmaceutics, 438(1-2), 150-159 (2012-09-12)
The potential of excipient coating to enhance aerosol performance of micronized drugs in carrier excipient-drug blends, used in dry powder inhalers, was investigated. Both EC (ethyl cellulose) and PVP (polyvinylpyrrolidone) were used as coating agents. Carriers were prepared via sieve
Tazin Mahnaj et al.
Pharmaceutical development and technology, 18(5), 982-989 (2011-08-25)
Ethyl cellulose (EC) polymer was characterized for its property before considering the interactions with the plasicizer. Ethocel Std.10 FP Premium from Dow chemical company USA was tested for its solubility, morphology and thermal properties. Seven percentage of EC solution in
Anurag Verma et al.
Acta pharmaceutica (Zagreb, Croatia), 62(2), 237-250 (2012-07-04)
Chitosan has become a focus of major interest in recent years due to its excellent biocompatibility, biodegradability and non-toxicity. Although this material has already been extensively investigated in the design of different types of drug delivery systems, it is still
Helene Andersson et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 48(1-2), 240-248 (2012-11-20)
Films of ethyl cellulose (EC) and water-soluble hydroxypropyl cellulose (HPC) can be used for extended release coatings in oral formulations. The permeability and microstructure of free EC/HPC films with 30% w/w HPC were studied to investigate effects of EC molecular
Amornset Tachaprutinun et al.
International journal of pharmaceutics, 441(1-2), 801-808 (2012-12-29)
The method to prepare mucosa-plates, glass slides covalently coated with mucin, is demonstrated. The use of the plate to evaluate mucoadhesion of nanocarriers made from different four polymeric materials, N-succinylchitosan (NS-chitosan), alginate (ALG), ethylcellulose (EC), and a blend of EC
Claire Gendre et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 81(3), 657-665 (2012-05-09)
The dissolution method is still widely used to determine curing end-points to ensure long-term stability of film coatings. Nevertheless, the process of curing has not yet been fully investigated. For the first time, joint techniques were used to elucidate the
Hosseinali Tabandeh et al.
Pakistan journal of pharmaceutical sciences, 27(3), 495-503 (2014-05-09)
This study was performed to achieve sustained-release Ibuprofen matrix tablets with a zero-order release kinetic while most of the previous formulations have shown Higuchi release kinetic. Considering the results from previous studies, ethyl cellulose, Carbopol 934P, Carbopol 974P, and Pemulen
K Rehman et al.
Drug research, 63(12), 657-662 (2013-07-12)
The increase in diseases of the colon underscores the need to develop cost-effective site-directed therapies. We formulated a polysaccharide-based matrix system that could release ibuprofen under conditions simulating those in the colon by employing a wet granulation method. Tablets were
Syed Umer Jan et al.
Pakistan journal of pharmaceutical sciences, 25(4), 751-756 (2012-09-27)
The aim and objective of the present study was to formulate and evaluate controlled release polymeric tablets of ibuprofen with determinations of formulation factors using various grades and types of polymer ethocel i.e. ethocel standard 10P; 10FP, 100P and100FP for
Muhammad K Shahzad et al.
Advances in clinical and experimental medicine : official organ Wroclaw Medical University, 22(2), 177-183 (2013-05-28)
The aim of the present work was to formulate flurbiprofen (FLB) loaded microspheres of hydroxypropylmethycellulose and ethylcellulose polymers to study the effect of different proportions of the polymer mixture on the release behavior of the drug. A series of microspheres
N Suwannateep et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 82(3), 485-490 (2012-09-08)
The phytochemical curcumin possesses antioxidant activity; however, it becomes unstable after being exposed to light or heat or loses activity during storage. This is especially important when curcumin is applied to the skin within a cosmetic or pharmaceutical formulation, since
Dace Gao et al.
Nanoscale horizons, 5(4), 730-738 (2020-02-18)
The design and construction of 3D architectures enabled by stimuli-responsive soft materials can yield novel functionalities for next generation soft-bodied actuating devices. Apart from additive manufacturing processes, origami inspired technology offers an alternative approach to fabricate 3D actuators from planar
H V Adikane et al.
Applied biochemistry and biotechnology, 169(3), 1026-1038 (2013-01-09)
The chemical modification of developed ethyl cellulose-based membrane was carried out to make it suitable for bioseparation. The different reagents were used for the modification of membrane to couple protein A (PA) to study the purification of immunoglobulin G (IgG)
Gaurav Tolia et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 82(3), 518-525 (2012-07-24)
Matrix tablets of a model drug acetaminophen (APAP) were prepared using a highly compressible low glass transition temperature (T(g)) polymer silicone pressure sensitive adhesive (PSA) at various binary mixtures of silicone PSA/APAP ratios. Matrix tablets of a rigid high T(g)
Li-Ya Huang et al.
International journal of pharmaceutics, 436(1-2), 88-96 (2012-07-14)
A drug-loaded nanofiber mesh which could achieve time-engineeringed biphasic release was fabricated through sequential electrospinning. The drug to polymer ratio of each single mesh was allocated and designed before the tri-layered meshes were created. The resultant meshes had the following
Hanzhou Feng et al.
Colloids and surfaces. B, Biointerfaces, 103, 530-537 (2012-12-26)
Genipin-crosslinked complex microspheres made of the combination of two polymers, ethyl cellulose and chitosan, were prepared by spray drying method. Rifabutin, an anti-tuberculosis agent was used as a model drug. Effects of various specifications of ethyl cellulose and chitosan, different
Christianne Mounir Zaki Rizkalla et al.
Pharmaceutical development and technology, 18(1), 196-209 (2012-06-06)
The systemic effect of hydroxyzine hydrochloride following its oral administration or topical application is associated with non compliant anticholinergic effect. Subsequently, the present study aims to prepare microcapsules loaded with hydroxyzine hydrochloride enabling its controlled release into the skin and
Aja Aravamudhan et al.
Journal of biomedical nanotechnology, 9(4), 719-731 (2013-04-30)
Scaffold based bone tissue engineering (BTE) has made great progress in regenerating lost bone tissue. Materials of natural and synthetic origin have been used for scaffold fabrication. Scaffolds derived from natural polymers offer greater bioactivity and biocompatibility with mammalian tissues
Ritesh M Pabari et al.
Expert opinion on drug delivery, 9(12), 1463-1474 (2012-10-16)
To examine the potential of a novel 3-fluid nozzle spray drying technology to formulate differentiated layered microparticles (MPs) of diclofenac sodium (DFS)/ethyl cellulose (EC). DFS/EC MPs were formulated using the inner and/or outer nozzles of a novel 3-fluid nozzle and
D G Yu et al.
Acta biomaterialia, 9(3), 5665-5672 (2012-10-27)
The capability of core/sheath nanofibers prepared using coaxial electrospinning to provide adjustable biphasic drug release was investigated. Using ketoprofen (KET) as the model drug, polyvinylpyrrolidone as the sheath polymer, and ethyl cellulose as the core matrix, the coaxial process could
Tetsuya Ozeki et al.
Biological & pharmaceutical bulletin, 35(11), 1926-1931 (2012-11-06)
Production of drug nanoparticles is an effective strategy to enhance solubility and oral absorption of water-insoluble drugs. The handling of drug nanoparticles has been an important issue in drug formulation because nanoparticles easily aggregate each other and redispersion of these
S K Sahoo et al.
Acta poloniae pharmaceutica, 70(1), 123-127 (2013-04-25)
5-Fluorouracil loaded calcium-zinc-gellan and calcium-zinc-gellan-ethyl cellulose microbeads were successfully prepared by simple ionotropic gelation and oil in water ionotropic gelation technique, respectively. Prepared microbeads were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy and evaluated for particle size, drug
Oguzhan Gunduz et al.
Pharmaceutical research, 30(1), 225-237 (2012-09-08)
To investigate a new microfluidic method for the continuous preparation of hollow-shell nanoparticles of a hydrophobic polymer and the simultaneous encapsulation within these of a hydrophilic active pharmaceutical ingredient. A specially designed and constructed microfluidic device which facilitates at a
Mohan Thakare et al.
Pharmaceutical development and technology, 18(5), 1213-1219 (2011-10-14)
Altering the combined hydrophilic-lipophilic balance (CHLB), by varying the ratio of dual surfactants, on formulation parameters and in vitro drug release of ethyl cellulose microspheres was examined. Theophylline, a xanthine bronchodilator was used to model controlled release owing to its
Anna Wattanasatcha et al.
International journal of pharmaceutics, 434(1-2), 360-365 (2012-06-16)
Among thymol, carvacrol, citronellal, eugenol and terpinen-4-ol, thymol showed the highest antibacterial activity against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. Thymol was then encapsulated into water dispersible submicron sized ethylcellulose/methylcellulose spheres, attaining the relatively high thymol loading level of
Ghulam Murtaza
Acta poloniae pharmaceutica, 69(1), 11-22 (2012-05-12)
Ethylcellulose (EC) based microencapsulated drug delivery systems are being extensively studied throughout the world for achieving extended drug release and protecting the core substance from degradation. The in vitro evaluation of EC microcapsules have elucidated that their particle characteristics are
Shivaan Cooppan et al.
Pharmaceutical development and technology, 18(5), 1066-1077 (2012-05-18)
This study aimed at developing double crosslinked isoniazid (INH)-loaded polymethyl-methacrylate-ethylcellulose (PMMA-EC) polyspheres for rate-controlled enteric drug delivery. A PMMA solution was manipulated with the addition of EC to produce polyspheres by drop-wise extrusion into a primary crosslinking solution of AlCl3
Joseph D Roy-Mayhew et al.
ACS applied materials & interfaces, 4(5), 2794-2800 (2012-05-03)
Several techniques for fabricating functionalized graphene sheet (FGS) electrodes were tested for catalytic performance in dye-sensitized solar cells (DSSCs). By using ethyl cellulose as a sacrificial binder, and partially thermolyzing it, we were able to create electrodes which exhibited lower
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