Abstract：
:Aerosolization behavior of carrier-free l-leucine coated salbutamol sulphate inhalable powders has been studied. L-Leucine coatings were formed by physical vapour deposition (PVD) on the surface of the spherical particles in the gas phase. While depositing L-leucine formed pointy crystalline asperities whose size and density increased with the increased content of L-leucine in the gas phase. The asperity size changed from few nanometers to hundreds of nanometers. Due to the rough surface, all these coated fine powders were well-flowable and could be fed without the aid of coarser carriers. The aerosolization characteristics of the powders were studied with 'Inhalation Simulator' under ascending and fast inhalation profiles. When detected on-line by infrared light attenuation, the emission of the coated powders from an inhaler (Easyhaler) was distinctively dependent on the inhalation flow rate less than 30 l/min whereas that of micronized salbutamol sulphate powder solely depended on the studied inhalation flow rate range up to 100 l/min. Gravimetric measurements showed that emitted doses (ED) and fine particle fractions (FPF) of the coated powders were 5.1-7.1 mg/dose and 42-47%, respectively, which were 3-4 times higher than those of the micronized powder. The ED and FPF of the coated powders decreased as the surface roughness increased which is hypothesized as mechanical interlocking between the surface asperities.
journal_name
Int J Pharmjournal_title
International journal of pharmaceuticsauthors
Raula J,Lähde A,Kauppinen EIdoi
10.1016/j.ijpharm.2008.08.017subject
Has Abstractpub_date
2009-01-05 00:00:00pages
18-25issue
1-2eissn
0378-5173issn
1873-3476pii
S0378-5173(08)00557-7journal_volume
365pub_type
杂志文章abstract：:Spherical hydroxyapatite cores were prepared by using carboxylic acid terminated half-generation poly(amidoamine) (PAMAM) dendrimer as templates or crystal modifiers. The hydroxyapatite cores were characterized by infrared spectroscopy (IR), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The spher...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(02)00235-1
更新日期：2002-07-08 00:00:00
abstract：:Different types of ibuprofen- and lidocaine-loaded, poly(lactic-co-glycolic acid) (PLGA)-based microparticles and thin, free films of various dimensions were prepared and physico-chemically characterized in vitro. The obtained experimental results were analyzed using mathematical theories based on Fick's second law of...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2007.10.030
更新日期：2008-04-16 00:00:00
abstract：:Microneedle systems have gained attention as having many advantages over transdermal patches and hypodermic needles. The procedure provides adequate skin permeation rates without pain or severe infection. To obtain information for designing a microneedle system, macroneedles were used instead of microneedles to invest...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
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更新日期：2006-06-19 00:00:00
abstract：:Benzimidazole 2-carbamates, such as albendazole (ABZ) and mebendazole (MBZ), used for the treatment of helmintic infections, have low aqueous solubility and poor bioavailability, both of which lead to high interindividual variability when used for human systemic helmintiosis; therefore, it is necessary to search for n...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2007.05.013
更新日期：2007-10-01 00:00:00
abstract：:This work presents a technique for shape modelling of cylindrical and spherical tablets subject to compression. This technique is based on the use of partial differential equations (PDEs), the biharmonic equation in particular. The deformation of the compressed elastic-plastic tablet of both shapes was obtained using ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2012.01.053
更新日期：2012-05-10 00:00:00
abstract：:Pellets coated with a new aqueous polyvinyl acetate dispersion, Kollicoat SR 30 D, could be compressed into tablets without rupture of the coating providing unchanged release profiles. In contrast, the compression of pellets coated with the ethylcellulose dispersion, Aquacoat ECD 30, resulted in rupture of the coating...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2004.03.019
更新日期：2004-07-26 00:00:00
abstract：:Idiopathic pulmonary fibrosis (IPF) is a progressive interstitial lung disease with high mortality and poor prognosis. Curcumin shows anti-inflammatory effect by suppressing pro-inflammatory cytokines and inhibiting NF-κB mediated inflammation. Here, we developed inhalable curcumin-loaded poly(lactic-co-glycolic)acid ...
journal_title：International journal of pharmaceutics
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doi：10.1016/j.ijpharm.2018.09.031
更新日期：2018-11-15 00:00:00
abstract：:Oxidative stress has been implicated in the progression of age-related macular degeneration (AMD). Treatment with antioxidants seems to delay progression of AMD. In this study, we suggested an antioxidant delivery system based on redox-sensitive liposome composed of phospholipids and a diselenide centered alkyl chain....
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2018.05.056
更新日期：2018-09-05 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
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更新日期：2019-02-25 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 临床试验,杂志文章
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更新日期：2004-05-19 00:00:00
abstract：:The self-organizing complexes with hyaluronic acid (HA) and polydopamine (PDA), an adhesion mediator via hydrogen bonding, were investigated for use as protein drug carriers. The complexes were prepared with HA of different molecular weights (20 kDa and 200 kDa) and various molar ratios of dopamine and lysozyme, a mod...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2018.03.007
更新日期：2018-05-05 00:00:00
abstract：:Paclitaxel is widely used to treat several types of solid tumors. The commercially available paclitaxel formulation contains Cremophor/ethanol as solubilizers. This study evaluated the effects of D-alpha-tocopheryl polyethylene glycol 400 succinate (TPGS 400) on the oral absorption of paclitaxel in mice. Mice were giv...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2008.04.013
更新日期：2008-07-09 00:00:00
abstract：:A sensitive atmospheric pressure chemical ionization liquid chromatographic-mass spectrometric (APCI-LC-MS) assay with positive ion mode has been developed for the determination of nifedipine in human plasma. In this method, nifedipine was extracted from human plasma using diethyl ether with dimethoxanate as the inter...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ijpharm.2007.03.053
更新日期：2007-08-16 00:00:00
abstract：:Polymer microcapsules offer a possibility of storing increased amounts of drugs. Appropriate design and composition of the microcapsules allow tuning of the drug-release process. In this paper, we report on synthesis of hydrogel microcapsules sensitive to temperature and pH and degradable by glutathione and hydrogen p...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2019.118589
更新日期：2019-10-05 00:00:00
abstract：:A range of 17 ternary formulations of itraconazole (ITZ), HPMCP and Soluplus have been manufactured using spray drying. These amorphous solid dispersions (ASDs) were very stable against crystallisation and ITZ was found to be amorphous in all formulations after one year at 40°C/75% RH. A number of solid state analytic...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2017.01.043
更新日期：2017-03-15 00:00:00
abstract：:The electrochemical reduction of ornidazole was studied at a glassy carbon electrode activated by applying a new pretreatment. The dependence of intensities of currents and potentials on pH, concentration, scan rate, nature of the solvent (aqueous media, mixed aqueous-organic systems) and surfactant was investigated. ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(97)00208-1
更新日期：1997-11-28 00:00:00
abstract：:This study focused on the design, biometric simulation and optimization of an intracranial nano-enabled scaffold device (NESD) for the site-specific delivery of dopamine (DA) as a strategy to minimize the peripheral side-effects of conventional forms of Parkinson's disease therapy. The NESD was modulated through biome...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2009.08.021
更新日期：2009-12-01 00:00:00
abstract：:Porphyrin and their derivatives are being systematically studied as photosensitizers for photodynamic therapy. The ability to predict their membrane partition properties is of key importance to unveil their in vivo activity and applications. Several n-octanol/water partition coefficients (logP(OW)) of porphyrin deriva...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2006.08.008
更新日期：2007-02-01 00:00:00
abstract：:d-β-hydroxybutyrate and melatonin (BHB/MLT) infusion improves survival in hemorrhagic shock models. The original BHB/MLT formulation contains dimethyl sulfoxide (DMSO) to increase melatonin solubility. We formulated BHB/MLT solutions wherein DMSO was replaced either with 10% polyvinylpyrrolidone (BHB/MLT/PVP) or with ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2018.06.046
更新日期：2018-09-05 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2003.10.018
更新日期：2004-03-01 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2013.12.053
更新日期：2014-03-10 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2015.03.015
更新日期：2015-05-15 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2018.07.061
更新日期：2018-10-05 00:00:00
abstract：:Solid lipid nanoparticles (SLN) containing a novel potential sunscreen n-dodecyl-ferulate (ester of ferulic acid) were developed. The preparation and stability parameters of n-dodecyl-ferulate-loaded SLN have been investigated concerning particle size, surface electrical charge (zeta potential) and matrix crystallinit...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2005.02.005
更新日期：2005-05-13 00:00:00
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journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2015.08.062
更新日期：2015-10-15 00:00:00
abstract：:Three rapid and sensitive, colorimetric and atomic absorption spectrometric methods were developed for the determination of aztreonam. The proposed methods depend upon the reaction of cobaltthiocyanate (I) or reineckate (II) ions with the drug to form stable ion-pair complexes which extractable with chloroform. The gr...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(00)00467-1
更新日期：2000-09-15 00:00:00
abstract：BACKGROUND:The photodegradation of drugs obeying unimolecular mechanisms such as that of nifedipine (NIF) were usually characterised in the literature by zero-, first- and second-order kinetics. This approach has been met with varying success. This paper addresses this issue and proposes a novel approach for unimolecul...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2013.07.075
更新日期：2013-11-01 00:00:00
abstract：:We report here the synthesis, in vitro and in vivo investigation of magnetic resonance imaging (MRI) active nanoparticles, which target folate receptor overexpressing tumor cells. Self-assembled nanoparticles with a hydrodynamic size of 50-200 nm were prepared from poly-γ-glutamic acid and chitosan biopolymers with Gd...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2012.11.038
更新日期：2013-01-30 00:00:00
abstract：:Di-isononyl phthalate (DINP) is a general-purpose plasticizer for polyvinyl chloride. However, this industrial chemical plasticizer used as a clouding agent has recently contaminated food and beverages that had been inspected by Taiwan Food and Drug Administration. This study develops a sensitive and specific method c...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2013.04.033
更新日期：2013-06-25 00:00:00
