Abstract：
:Titration calorimetry was used to investigate the interaction between a model antigen, bovine serum albumin (BSA), and a model particulate carrier, polystyrene (PS). The binding enthalpy was much higher than reported in the literature for a similar system and did not display a sigmoidal binding curve. These experiments may have accessed low coverage surface sites due to the irreversible nature of protein binding and stepwise titration. An important correction is the heat of dilution of the protein solution. Two regimes were observed: at low concentrations of BSA (below ca. 0.3% (w/v)) an exothermic dilution enthalpy of ca. -100 mJ mg-1 was determined, whereas at higher concentrations of BSA values of ca. -20 mJ mg-1 were obtained. Solution rheological data also showed a change at 0.3% (w/v) BSA, so we hypothesise that the fraction of the BSA as monomers, dimers and polymers in solution changes at approximately 0.3% (w/v).
journal_name
Int J Pharmjournal_title
International journal of pharmaceuticsauthors
Pollitt MJ,Buckton G,Brocchini S,Alpar HOdoi
10.1016/j.ijpharm.2005.02.037keywords:
subject
Has Abstractpub_date
2005-07-25 00:00:00pages
333-8issue
2eissn
0378-5173issn
1873-3476pii
S0378-5173(05)00240-1journal_volume
298pub_type
杂志文章abstract：:The purpose of this work was to investigate the influence of dissolution medium composition on the in vitro release of ketoprofen from a series of ER products and the impact of the different buffer media on the in vivo-in vitro (IVIV) relationship. The products investigated were coated micro bead preparations having i...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(03)00004-8
更新日期：2003-03-26 00:00:00
abstract：:Many fabrication methods for microneedle (MN) involve harsh conditions and long drying time. This study aims to fabricate a dissolving MN patch in a simple and efficient manner under mild conditions, using a combination of thermal and photo polymerisation. The MN patch was fabricated by pre-polymerisation of vinylpyrr...
journal_title：International journal of pharmaceutics
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abstract：:The log-linear cosolvency model was applied for estimating the solubility of four drugs: ritonavir, griseofulvin, itraconazole and ketoconazole in poly(vinylpyrrolidone) (PVP). Cosolvent mixtures consisted of PVP mixed in different proportions with N-ethylpyrrolidone, which served as the monomeric analogue of the repe...
journal_title：International journal of pharmaceutics
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更新日期：2015-10-15 00:00:00
abstract：:In this work, we present a novel approach for the development of models for prediction of aqueous solubility, based on the implementation of an algorithm for the automatic adjustment of descriptor's relative importance (AARI) in counter-propagation artificial neural networks (CPANN). Using this approach, the interpret...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2012.08.022
更新日期：2012-11-01 00:00:00
abstract：:In this study, a blend mixture of chitosan-ethylenediaminetetraacetic acid (CS 2 wt%-EDTA) at a weight ratio of 30/70 and polyvinyl alcohol (PVA) solution (10 wt%) was electrospun to produce fibrous mats with lysozyme (10, 20 and 30 wt%) used for wound healing. The morphology and diameter of the electrospun fiber mats...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2012.02.010
更新日期：2012-05-10 00:00:00
abstract：:Poorly soluble drug molecules often have low bioavailability issues and absorption problems in the clinical setting. As the number of poorly soluble drugs increases from discovery, developing technologies to enhance their solubility, while also controlling their release is one of the many challenges facing the pharmac...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章,评审
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abstract：:Powder filled sachets containing a 3:1 (w/w) powder mixture of diacetylmorphine base and caffeine anhydrate were developed as a dosage form for smokable heroin used for the treatment of chronic, treatment-resistant heroin addicts. The powder mixture was filled into sachets using a micro dose auger filler machine. The ...
journal_title：International journal of pharmaceutics
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更新日期：2004-11-05 00:00:00
abstract：:Peptides and polypeptides have important pharmacological properties but only a limited number have been exploited as therapeutics because of problems related to their delivery. Most of these drugs require a parenteral delivery system which introduces the problems of pain, possible infection, and expertise required to ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2011.11.046
更新日期：2012-02-28 00:00:00
abstract：:An increasing human population requires a secure food supply and a cost effective, oral vaccine delivery system for livestock would help facilitate this end. Recombinant antigen adsorbed onto silica beads and coated with myristic acid, was released (∼15% (w/v)) over 24 h at pH 8.8. At pH 2, the myristic acid acted as ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
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更新日期：2014-07-01 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章,评审
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
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更新日期：2015-11-30 00:00:00
abstract：:The objective of the present study was to evaluate three formulation parameters for the application of polymethacrylic films from aqueous dispersions in order to obtain multiparticulate sustained release of diclofenac sodium. Film coating of pellet cores was performed in a laboratory fluid bed apparatus. The chosen in...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(03)00061-9
更新日期：2003-04-30 00:00:00
abstract：:Symprove, a multi-strain probiotic, has been shown to exert a mild anti-inflammatory effect in patients with ulcerative colitis (UC). We examined stool samples from 3 patients with UC in order to create microbiotas in an in-vitro gut model. The effects of Symprove on bacterial diversity and metabolic activity in the m...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
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更新日期：2020-09-25 00:00:00
abstract：:The objective of this study was to investigate the integrtity and stability of oral liposomes containing glycocholate (SGC-Lip) in simulated gastrointestinal (GI) media and ex vivo GI media from rats in comparison with conventional liposomes (CH-Lip) composed of soybean phosphatidylcholine and cholesterol. Membrane in...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2012.10.025
更新日期：2013-01-30 00:00:00
abstract：:Twenty diclofenac sodium buccoadhesive discs containing Cp974p, polycarbophil, PEO, SCMC-medium viscosity (SCMC-MV), SCMC-ultrahigh viscosity (SCMC-UHV) or their combinations were prepared. These buccoadhesive discs were evaluated for release pattern, swelling capacity, surface pH, mucoadhesion performance, and in vit...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2004.07.033
更新日期：2004-11-22 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(00)00493-2
更新日期：2000-08-25 00:00:00
abstract：:The current work aimed to develop novel composite sponges of chitosan (CH)-chondroitin sulfate (CS) as a low-density gastroretentive delivery system for lornoxicam (LOR). This triple anti-inflammatory therapy-loaded matrices are expected to expand and float upon contact with gastric fluids for prolonged times. CH and ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2014.06.013
更新日期：2014-09-10 00:00:00
abstract：:The six fragrances, camphor, citronellal, eucalyptol, limonene, menthol and 4-tert-butylcyclohexyl acetate, which represent different chemical functionalities, were encapsulated with a polymer-blend of ethylcellulose (EC), hydroxypropyl methylcellulose (HPMC) and poly(vinyl alcohol) (PV(OH)) using solvent displacement...
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更新日期：2010-05-31 00:00:00
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pub_type： 杂志文章
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更新日期：2008-08-06 00:00:00
abstract：:The breast cancer resistance protein (BCRP) is an efflux transporter expressed at the apical surface of human brain endothelial cells of the blood-brain barrier (BBB). It was proposed as one of the transporters responsible for the development of drug resistance to several central nervous system (CNS) drugs, including ...
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journal_title：International journal of pharmaceutics
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更新日期：2009-05-08 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章,评审
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更新日期：2017-11-30 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
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更新日期：2006-04-07 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
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更新日期：2003-05-12 00:00:00
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journal_title：International journal of pharmaceutics
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更新日期：2019-02-25 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2017.03.037
更新日期：2017-05-15 00:00:00
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journal_title：International journal of pharmaceutics
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更新日期：2020-02-25 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
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更新日期：2012-10-15 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
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更新日期：2019-01-30 00:00:00
abstract：:The effect of the elasticity of various pharmaceutical materials on the interfacial adhesion in bilayer tablets was investigated. The elastic properties of five pharmaceutical products were characterized by their total elastic recovery. To test the interfacial strength of the bilayer tablets a new flexural test was pr...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2013.09.009
更新日期：2013-11-30 00:00:00
