Formulation and in vitro characterization of poly(dl-lactide-co-glycolide)/Eudragit RLPO or RS30D nanoparticles as an oral carrier of levofloxacin hemihydrate.

abstract：:In this study, we designed a polymersome system for the controlled release of methotrexate (MTX) as an anticancer drug with the objective of improving the loading efficiency of the drug in polymersomes as well as achievement of an efficient control on the release rate of drug from nanocarriers. We synthesized mono met...

journal_title：Pharmaceutical development and technology

authors： Nosrati H,Adinehvand R,Manjili HK,Rostamizadeh K,Danafar H

更新日期：2019-01-01 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：:Supercritical fluid extraction (SFE), with carbon dioxide as the solvent, was tested for its ability to remove common reactive impurities from several pharmaceutical excipient powders including starch, microcrystalline cellulose (MCC), hydroxypropylcellulose (HPC), polyethylene oxide (PEO), and polyvinylpyrrolidone (P...

journal_title：Pharmaceutical development and technology

authors： Ashraf-Khorassani M,Taylor LT,Waterman KC,Narayan P,Brannegan DR,Reid GL

更新日期：2005-01-01 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：:The aim of this study was to investigate early formulation screening in small scale with a miniaturized fluid bed device. Altogether eight different batches were granulated in a Multipart Microscale Fluid bed Powder processor (MMFP) with constant process conditions using electrostatic atomization. Atomization voltage ...

journal_title：Pharmaceutical development and technology

authors： Kivikero N,Murtomaa M,Antikainen O,Hatara J,Juppo AM,Sandler N

更新日期：2011-08-01 00:00:00

abstract：:The purpose of this study was to investigate the effect of the composition of a binary powder mixture on the bonding index, the brittle fracture index, and the strain index, as defined by Hiestand. The studies involved tensile strength and dynamic indentation hardness determinations of square compacts, the solid fract...

journal_title：Pharmaceutical development and technology

authors： Majuru S,Wurster DE

更新日期：1997-11-01 00:00:00

abstract：:The purpose of this study was to improve the sensitivity and accuracy of quantitative analysis of polymorphic mixtures. Various techniques such as hand grinding and mixing (in mortar and pestle), air jet milling and ball milling for micronization of particle and mixing were used to prepare binary mixtures. Using these...

journal_title：Pharmaceutical development and technology

authors： Alam S,Patel S,Bansal AK

更新日期：2010-09-01 00:00:00

abstract：:Bupivacaine lipid microparticles were prepared and evaluated as a parenteral sustained-release dosage form for postoperative pain management. Bupivacaine free base was incorporated into a molten tristearin matrix and lipid micro-particles were subsequently formed from this molten mixture by a spray-congealing process....

journal_title：Pharmaceutical development and technology

authors： Li LC,Zhu L,Song JF,Deng JS,Bandopadhyay R,Wurster DE

更新日期：2005-01-01 00:00:00

abstract：:To improve the solubility and bioavailability of oridonin (ORI), glycerol monooleate lipid (GMO)- or phytantriol (PYT)-Poloxamer 407-propylene glycol-water systems were firstly used to develop cubosomes containing ORI for oral delivery. These cubosomes prepared through the fragmentation of bulk gels under homogenizati...

journal_title：Pharmaceutical development and technology

authors： Shi X,Peng T,Huang Y,Mei L,Gu Y,Huang J,Han K,Li G,Hu C,Pan X,Wu C

更新日期：2017-05-01 00:00:00

abstract：:Co-solvent solubilization approach has been used to enhance the solubility of seven antidiabetic drugs: gliclazide, glyburide, glipizide, glimepiride, repaglinide, pioglitazone, and roziglitazone. Solubility in water, phosphate buffer (pH 7.4), six co-solvent solutions prepared in water as well as phosphate buffer (pH...

journal_title：Pharmaceutical development and technology

authors： Seedher N,Kanojia M

更新日期：2009-01-01 00:00:00

abstract：:The physical-chemical processing variables affecting particle size following precipitation using the supercritical antisolvent (SAS) method were investigated by varying both the composition of the feed solvent and the structure of the solute, using a series of steroids. The key factor influencing particle size in thes...

journal_title：Pharmaceutical development and technology

authors： Sacha GA,Schmitt WJ,Nail SL

更新日期：2006-01-01 00:00:00

abstract：:This paper assesses the cause of particulate formation in vials of the experimental antitumor agent bisnafide and investigates pharmaceutical techniques to reduce the number of particulates in the product. Solution preparation and particulate isolation were performed under Class 100 laminar air flow. Reversed-phase HP...

journal_title：Pharmaceutical development and technology

authors： Rubino JT,Chan LL,Walker JT,Segretario J,Everlof JG,Hussain MA

更新日期：1999-08-01 00:00:00

abstract：CONTEXT:The recent US Food and Drug Administration (FDA) legislation has introduced the evaluation of the Design Space of critical process parameters in manufacturing processes. In freeze-drying, a "formulation" is expected to be robust when minor deviations of the product temperature do not negatively affect the final...

journal_title：Pharmaceutical development and technology

authors： Schneid SC,Stärtzel PM,Lettner P,Gieseler H

更新日期：2011-11-01 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：:Seven potential impurities, including by-products, starting materials and intermediates were identified in pharmaceutical substance quetiapine fumarate and characterized by spectroscopic methods (MS, IR, NMR). Based on these methods the structures of the impurities were assigned or confirmed as: impurity I: 2-(phenylt...

journal_title：Pharmaceutical development and technology

authors： Stolarczyk EU,Kaczmarek L,Eksanow K,Kubiszewski M,Glice M,Kutner A

更新日期：2009-01-01 00:00:00

abstract：:The purpose of this study was to assess the usefulness of waxy corn (maize) starch as a cofiller and diluent in pellets produced by aqueous extrusion-spheronization. Waxy corn starch was combined with microcrystalline cellulose (MCC) in the range of 20-50% of the entire composition. Pellets containing ordinary corn st...

journal_title：Pharmaceutical development and technology

authors： Junnila R,Palviainen P,Heinämäki J,Myllärinen P,Forssell P,Yliruusi J

更新日期：2000-01-01 00:00:00

abstract：:The aim of this study was to investigate intravitreal injection of silk fibroin nanoparticles (SFNs) encapsulating bio-macromolecules, achieving enhanced drug bioavailability, and extended retention in retina. SFNs were prepared with regenerated silk fibroin using desolvation method with fluorescein isothiocyanate lab...

journal_title：Pharmaceutical development and technology

authors： Yang P,Dong Y,Huang D,Zhu C,Liu H,Pan X,Wu C

更新日期：2019-06-01 00:00:00

abstract：:Objective: Tanshinone IIA (TSN) and Tetramethylpyrazine (TMP) were combined in a composite, oil-in-water nanoemulsions (TSN/TMP O/W NEs) was prepared to prolong in vitro and vivo circulation time, and enhance the bioavailability of TSN. Material and methods: Physicochemical characterization of TSN/TMP O/W NEs was char...

journal_title：Pharmaceutical development and technology

authors： Wang B,Hong L,Liu Y,Bedingfield SK,Zhang C,Peng C,Qian J,Zha L

更新日期：2019-12-01 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 biopharmaceutical assessment of new drug candidates based on their chemical structure is important in drug discovery and development. The scope of this study is to focus on lipophilic drugs and to clarify the role of their chemical predictors on oral bioavailability in humans. First their chemical properties were ...

journal_title：Pharmaceutical development and technology

authors： Kuentz MT,Arnold Y

更新日期：2009-01-01 00:00:00

abstract：:Microgels were prepared by cinnamic acid-gelatin (type B) conjugate (CA-GelB) and cinnamic acid-Pluronic F127 conjugate (CA-Plur). (1)H NMR confirmed that CA was conjugated to gelatin and the gelatin to CA residue molar ratio was estimated to be 1:4.7 by a colorimetric method. CA-Plur of which the CA residue to Plur m...

journal_title：Pharmaceutical development and technology

authors： Zhang H,Kim JC

更新日期：2016-01-01 00:00:00

abstract：:In the current study, we demonstrate a structured approach to downstream process development for spray dried amorphous solid dispersions. Direct compression is generally not suitable due to typically poor flow of spray dried powders in tablets. Roller compaction (RC) is therefore the method of choice to enable spray d...

journal_title：Pharmaceutical development and technology

authors： Henriques J,Moreira J,Doktorovová S

更新日期：2021-01-04 00:00:00

abstract：:A colchicine release system utilizing biodegradable poly(phosphazenes) was investigated in vitro for intra-articular administration. Polymer degradation and drug release studies were performed on colchicine-loaded poly(phosphazenes) containing either imidazolyl (I-PPHOS) or ethyl glycinato (EG-PPHOS) side chain substi...

journal_title：Pharmaceutical development and technology

authors： Ibim SM,el-Amin SF,Goad ME,Ambrosio AM,Allcock HR,Laurencin CT

更新日期：1998-02-01 00:00:00

abstract：:The present study was aimed to optimize capsulated unfolding type gastroretentive bilayer film constituting immediate release (IR) layer of amlodipine besylate and sustained release (SR) layer of atorvastatin calcium. A three-factor, three-level Box-Behnken-design was used to optimize bilayer film with dual-release ch...

journal_title：Pharmaceutical development and technology

authors： Porwal A,Dwivedi H,Pathak K

更新日期：2020-04-01 00:00:00

abstract：:Due to their light consistency and good spreadability, aqueous foams are considered as convenient and highly accepted drug carrier systems that are of great importance in the field of topical drug delivery. The production of a stable, easy to dose, preferably environmentally harmless foam formulation is challenging. T...

journal_title：Pharmaceutical development and technology

authors： Farkas D,Kállai-Szabó N,Sárádi-Kesztyűs Á,Lengyel M,Magramane S,Kiss É,Antal I

更新日期：2020-12-27 00:00:00

abstract：:The formulation of betamethasone-17-valerate (BV) into topical medicines presents a significant challenge for the formulation chemist. The substance is susceptible to acid and base catalyzed isomerization in aqueous environments, which results in valerate transesterification from carbon 17 to carbon 21 of the steroid ...

journal_title：Pharmaceutical development and technology

authors： Byrne J,Wyraz A,Velasco-Torrijos T,Reinhardt R

更新日期：2017-06-01 00:00:00

abstract：PURPOSE:Aerodynamically stable, nebulized aerosols are desirable to achieve optimum asthma therapy. Stabilizing droplet size using gel-forming polymers may assist in achieving this goal. Semisolid particles may be generated through aerosolization of a polymer solution. Gelatin was employed as a model polymer in a proce...

journal_title：Pharmaceutical development and technology

authors： Deaton AT,Jones LD,Dunbar CA,Hickey AJ,Williams DM

更新日期：2002-05-01 00:00:00

abstract：:The contact time of a vehicle on the cornea is of utmost importance for ophthalmic drug delivery. The poor bioavailability and therefore poor therapeutic response exhibited by the conventional ophthalmic solutions due to pre-corneal elimination of a drug may be overcome by the use of the in situ gel forming systems, w...

journal_title：Pharmaceutical development and technology

authors： Gupta S,Samanta MK

更新日期：2010-07-01 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：: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