A measurement of the unstirred aqueous boundary layer in a Franz diffusion cell.

abstract：:The objective of the present work is to investigate the presence or absence of a critical concentration of maize starch according to the percolation theory for a truly ternary system with respect to a minimum disintegration time. The results of this study show that the application of percolation theory is not limited ...

journal_title：Pharmaceutical development and technology

authors： Kimura G,Puchkov M,Betz G,Leuenberger H

更新日期：2007-01-01 00:00:00

abstract：:The main objective of the present study was to improve bioavailability of diltiazem hydrochloride and decrease the frequency of dosage form administration by increasing the encapsulation efficiency of the drug, residence time of the dosage form at the site of absorption and sustained release of the drug from the deliv...

journal_title：Pharmaceutical development and technology

authors： Sultana Y,Mall S,Maurya DP,Kumar D,Das M

更新日期：2009-01-01 00:00:00

abstract：:The general solubility equation (GSE) is the state-of-the-art method for estimating the aqueous solubilities of organic compounds. It is an extremely simple equation that expresses aqueous solubility as a function of only two inputs: the octanol-water partition coefficient calculated by readily available softwares lik...

journal_title：Pharmaceutical development and technology

authors： Alantary D,Yalkowsky S

更新日期：2018-09-01 00:00:00

abstract：:Ranitidine tablets USP showed variable intra- and inter-lab dissolution results. In order to ascertain the reason for this behavior, ranitidine tablets USP produced by (BIPI) Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT, and Zantac Tablets (brand of ranitidine USP), Glaxo Inc., Research Triangle, NC, were...

journal_title：Pharmaceutical development and technology

authors： Cappola ML

更新日期：2001-01-01 00:00:00

abstract：:Starches obtained from four different Dioscorea species namely White (D. rotundata), Bitter (D. dumetorum), Chinese (D. oppositifolia) and Water yam (D. alata), were modified by acid hydrolysis and the physicochemical, material and tablet formation properties of the starches were investigated with the aim of determini...

journal_title：Pharmaceutical development and technology

authors： Odeku OA,Picker-Freyer KM

更新日期：2009-01-01 00:00:00

abstract：:Effects of various factors, such as light intensity, polarizability of n-alcohol solvents, addition of colorants, and viscosity of solutions on the kinetics of the photoisomerization of therapeutically effective E-isomer of sorivudine to its less effective Z-isomer were studied. Solutions of known concentrations of E-...

journal_title：Pharmaceutical development and technology

authors： Desai D,Li D,Janjikhel R,Lang B,Jain N

更新日期：2001-01-01 00:00:00

abstract：:The utility of microcalorimetry as a rapid screening tool for assessing the solution stability of high molecular weight pharmaceutical proteins was evaluated by using model recombinant antibodies, Protein I and Protein II. Changes in the transition midpoint, T(m), were monitored as a function of pH and/or in the prese...

journal_title：Pharmaceutical development and technology

authors： Burton L,Gandhi R,Duke G,Paborji M

更新日期：2007-01-01 00:00:00

abstract：:Several processing and shipping stresses were investigated for their effect on the physical stability of recombinant human growth hormone (rhGH). These included exposure to air/water interfaces, adsorption to hydrophobic surfaces, freeze-thaw cycles, and temperature. The interfacially and thermally denatured hormone w...

journal_title：Pharmaceutical development and technology

authors： Katakam M,Banga AK

更新日期：1997-05-01 00:00:00

abstract：:The aim of the present investigation was to develop and study topical gel delivery of curcumin for its anti-inflammatory effects. Carbopol 934P (CRB) and hydroxypropylcellulose (HPC) were used for the preparation of gels. The penetration enhancing effect of menthol (0-12.5% w/w) on the percutaneous flux of curcumin th...

journal_title：Pharmaceutical development and technology

authors： Patel NA,Patel NJ,Patel RP

更新日期：2009-01-01 00:00:00

abstract：:Pulmonary delivery of peptides remains an important, noninvasive route of administration that is attractive because it offers high bioavailability and patient compliance. Optimization of particle characteristics for deposition in the deep regions of the lung after inhalation and retention of peptide stability are key ...

journal_title：Pharmaceutical development and technology

authors： Poursina N,Vatanara A,Rouini MR,Gilani K,Rouholamini Najafabadi A

更新日期：2017-09-01 00:00:00

abstract：:The main objective of this research is to use the near-infrared diffuse reflectance method to evaluate and quantify the effects of hardness and porosity on the near-infrared spectras of tablets. To develop a model equation, validate the model and test the model predictive ability. Seven theophylline tablet formulation...

journal_title：Pharmaceutical development and technology

authors： Donoso M,Kildsig DO,Ghaly ES

更新日期：2003-01-01 00:00:00

abstract：:This work aimed to incorporate Dexibuprofen (DXI), the pharmacologically active and more potent form of ibuprofen, into polymeric micelles based tablets with enhanced oral bioavailability. Thin film hydration technique was employed to prepare DXI polymeric micelles using Pluronic® F127 and/or P123 solutions in differe...

journal_title：Pharmaceutical development and technology

authors： Abdelbary G,Makhlouf A

更新日期：2014-09-01 00:00:00

abstract：:Magnesium stearate (MgSt) is a widely used pharmaceutical lubricant in tablet manufacturing. However, batch-to-batch variability in hydrate form and surface area can lead to inconsistency in tablet performance. In this work, several unique MgSt samples were studied: traditional monohydrate samples with high surface ar...

journal_title：Pharmaceutical development and technology

authors： Calahan JL,Paul S,Yanez EG,DeNeve D,Sun CC,Munson EJ

更新日期：2021-02-01 00:00:00

abstract：:This study reports on the impact of cyclodextrin addition on the phase behavior of microemulsion systems. Three distinct oil-in-water microemulsions were formulated and subjected to increasing concentrations of various cyclodextrins. The prepared formulations underwent visual, textural and microscopic characterization...

journal_title：Pharmaceutical development and technology

authors： Thakur SS,Solloway J,Stikkelman A,Seyfoddin A,Rupenthal ID

更新日期：2018-02-01 00:00:00

abstract：:A comprehensive analytical solution that accounts for many factors and assumptions affecting drug concentration profile in the gastrointestinal tract was presented. A sensitivity analysis approach was utilized in order to investigate the importance of different parameters in the model. The partition coefficient is fou...

journal_title：Pharmaceutical development and technology

authors： Idkaidek NM,Abdel-Jabbar N

更新日期：2001-01-01 00:00:00

abstract：:A redox-responsive docetaxel (DTX) prodrug consisting of a disulfide linkage between DTX and vitamin E (DTX-SS-VE) was synthesized in our laboratory and was successfully formulated into liposomes. The aim of this study was to optimize the formulation and investigate the cellular uptake of DTX prodrug-loaded liposomes ...

journal_title：Pharmaceutical development and technology

authors： Ren G,Jiang M,Guo W,Sun B,Lian H,Wang Y,He Z

更新日期：2018-01-01 00:00:00

abstract：:The objective of this study was to develop a floating, pulsatile, multiparticulate drug delivery system intended for chronopharmacotherapy of arthritis. The floating pulsatile drug delivery has the advantage that a drug can be released in the upper gastrointestinal tract after a definite time period of no drug release...

journal_title：Pharmaceutical development and technology

authors： Gaikwad M,Belgamwar VS,Tekade A,Gattani S,Surana S

更新日期：2010-03-01 00:00:00

abstract：:The aim of the present work was the development of vaginal sponge-like dressings based on chitosan ascorbate (CS) and on hyaluronic acid sodium salt/lysine acetate (HAS) combination. Sponge-like dressings were prepared by freeze-drying and characterized for mechanical resistance and mucoadhesion. CS dressings show hig...

journal_title：Pharmaceutical development and technology

authors： Rossi S,Marciello M,Ferrari F,Puccio A,Bonferoni C,Sandri G,Caramella C

更新日期：2012-03-01 00:00:00

abstract：:The physicochemical properties and enzymatic stability of esters of phenylephrone, synthesized on the basis of the chemical delivery system (CDS) concept, were studied as a new class of mydriatic agents. Potentiometrically determined ionization constants (pKa) of the novel compounds were in the range 7.19-7.21. The th...

journal_title：Pharmaceutical development and technology

authors： Goskonda VR,Khan MA,Bodor NS,Reddy IK

更新日期：1999-05-01 00:00:00

abstract：:The objective of this investigation was to formulate ocular inserts of gatifloxacin sesquehydrate to achieve controlled drug release. Drug reservoir was prepared using hydrophilic polymers, namely polyvinyl alcohol and polyvinyl pyrrolidone. The rate controlling membrane was prepared using hydrophobic ethyl cellulose ...

journal_title：Pharmaceutical development and technology

authors： Patel UL,Chotai NP,Nagda CD

更新日期：2012-01-01 00:00:00

abstract：:The hygroscopicity of Brequinar sodium, an organ transplant immunosuppressant, at 75% relative humidity highly depends on the crystal form or crystallinity of the drug substance. Hygroscopicity and ease of water uptake of three lots of Brequinar sodium were investigated. Those lots contained different impurities at le...

journal_title：Pharmaceutical development and technology

authors： Wu LS,Pang J,Hussain MA

更新日期：1996-04-01 00:00:00

abstract：:The aim of this research was to develop and assess a new dissolution apparatus for orodispersible films (ODFs). The new apparatus was based on a flow-through cell design which requires only a limited amount of dissolution medium and can automatically collect samples in short-time intervals. Compared with the dissoluti...

journal_title：Pharmaceutical development and technology

authors： Xia Y,Chen F,Zhang H,Luo C

更新日期：2015-05-01 00:00:00

abstract：:This study examines the effect of the degree of methoxylation (DM) and particle size on compression properties and compactibility of pectin powders. A powder classification system based on sequential handling of compression parameters was applied. A single size fraction (90-125 μm) of pectin powders with DM values ran...

journal_title：Pharmaceutical development and technology

authors： Salbu L,Bauer-Brandl A,Alderborn G,Tho I

更新日期：2012-05-01 00:00:00

abstract：:The objective of this study was to prepare pellets of thyme (Thymus vulgaris L.), stinging nettle (Urtica dioica L.) and sage (Salvia officinalis L.) dry extracts by extrusion-spheronization technique to improve technological properties and investigate dissolution profiles of pellets covered different levels of pH-sen...

journal_title：Pharmaceutical development and technology

authors： Kaledaite R,Bernatoniene J,Dvořáčková K,Gajdziok J,Muselík J,Pečiūra R,Masteikova R

更新日期：2015-11-01 00:00:00

abstract：:Two types of casein hydrolysates, casein A (mean peptide length 3.3) and casein B (mean peptide length 17.4) were prepared by the enzymatic hydrolysis of casein, and their effects on in vitro dissolution rates and oral bioavailability of drugs were evaluated. The in vitro dissolution behavior of the kneaded mixture of...

journal_title：Pharmaceutical development and technology

authors： Imai T,Nishiyama T,Shameem M,Otagiri M

更新日期：1998-05-01 00:00:00

abstract：:Multivesicular liposomes (MVLs) have been widely studied for encapsulation of hydrophilic drugs due to their structural properties and large aqueous inner cavities. In this study, to investigate MVLs and their potential application for incorporation of hydrophobic drugs, new drug delivery system for fluocinolone aceto...

journal_title：Pharmaceutical development and technology

authors： Vafaei SY,Dinarvand R,Esmaeili M,Mahjub R,Toliyat T

更新日期：2015-11-01 00:00:00

abstract：:Alendronate sodium (ALD) is a bisphosphonate medication used in the treatment and prevention of osteoporosis. Absorption of ALD as oral formulation is very poor (0.5%-1%). Its bioavailability can decrease with food effect. It has some gastrointestinal adverse effects such as gastritis, gastric ulcer, and esophagitis. ...

journal_title：Pharmaceutical development and technology

authors： Asikoğlu M,Ozguney I,Ozcan I,Orumlu O,Guneri T,Koseoğlu K,Ozkilic H

更新日期：2008-01-01 00:00:00

abstract：:The object of this study was to enhance the solubility, dissolution rate, and oral bioavailability of rutin by complexation with 2-hydroxypropyl-beta-cyclodextrin (HP-beta-CyD). The interaction of rutin with cyclodextrins (CyDs) was evaluated by the solubility, and ultraviolet (UV) and circular dichroism (CD) spectrop...

journal_title：Pharmaceutical development and technology

authors： Miyake K,Arima H,Hirayama F,Yamamoto M,Horikawa T,Sumiyoshi H,Noda S,Uekama K

更新日期：2000-01-01 00:00:00

abstract：:Novel buccal adhesive system (NBAS) containing Nimodipine (N) was prepared and evaluated by different parameters such as weight uniformity, thickness, hardness, surface pH, swelling index, mucoadhesive strength (MS), in vitro drug release and ex vivo drug permeation. Different formulations containing 5-20% Carbopol 93...

journal_title：Pharmaceutical development and technology

authors： Hassan N,Ali M,Ali J

更新日期：2010-03-01 00:00:00

abstract：:Drug solubility testing in biorelevant media has become an indispensable tool in pharmaceutical development. Despite this importance, there is still an incomplete understanding of how poorly soluble compounds interact with these media. The aim of this study was to apply the concept of the apparent solubilization capac...

journal_title：Pharmaceutical development and technology

authors： Schwebel HJ,van Hoogevest P,Leigh ML,Kuentz M

更新日期：2011-06-01 00:00:00