نتایج جستجو برای: dissolution reprecipitation

تعداد نتایج: 21070  

Journal: :The depositional record 2021

Over the past decades, burial realm, most prolonged and arguably least well-understood diagenetic environment, has received significant research attention. Despite remarkable progress driven by exploratory drilling, outcrop analogue studies experimental work, scientific theories defining sub-domains are inconsistently presented in literature. This paper reviews concepts, processes products that...

Journal: :Crystals 2021

Particles that modify delivery characteristics are a focus of drug-loading research. Hydroxyapatite particles (HAPs) have excellent biocompatibility, shape controllability, and high adsorption, making them potential candidate for drug-delivery carriers. However, there still some defects in the current methods used to prepare HAPs. In order avoid agglomeration improve properties HAPs, present st...

Journal: :Caries research 2007
T Jensdottir B Nauntofte C Buchwald A Bardow

Theoretical calculations have shown that acidic candies may be potentially erosive upon consumption. However, little is known about the protective effect of adding calcium to potentially erosive candies and about the protective effects of saliva that cannot be fully accounted for by theoretical calculations. Therefore, the aims of this study were to (1) determine the erosive potential of acidic...

Journal: :Optics express 2008
Ilkem O Huyal Tuncay Ozel Donus Tuncel Hilmi V Demir

We report on conjugated polymer nanoparticles of polyfluorene that were formed to exhibit higher fluorescence quantum efficiency in film (68%) and reduce undesired emission peak wavelength shifts in film (by 20 nm), compared to the solid-state polymer thin film made directly out of the same polymer solution without forming nanoparticles. Using the facile reprecipitation method, solutions of pol...

Journal: :The Journal of Experimental Medicine 1954
Michael Heidelberger Alan C. Aisenberg William Z. Hassid

Glycogens from various animal and vegetable sources precipitate antipneumococcal horse sera of Types II, VII, IX, XII, XX, and XXII. Fractionated glycogen and glycogen recovered after reprecipitation, acetylation, and deacetylation precipitate the antisera, but glycogen degraded by saliva does not. A fraction of the antibody is precipitated in the antisera by glycogen. Possible chemical relatio...

2015

European Journal of Pharmaceutical Sciences 13 2001 123133 www.elsevier.nllocateejps. Modeling and comparison of dissolution profiles.To compare dissolution profiles between two drug products model dependent curve fitting, statistic analysis and model independent methods can be used. To compare dissolution profiles between two drug products model dependent curve fitting, statistic analysis and ...

Journal: :Journal of the American Chemical Society 2008
Jiaguo Yu Fu-Ren F Fan Shanlin Pan Vincent M Lynch Khalid M Omer Allen J Bard

The single crystalline nanobelts were successfully fabricated with an ionic compound by a simple reprecipitation method. The compound used is the water-insoluble derivative of tris(bipyridine) Ru(II), [Ru(bpy)2(4,4'-(CH3(CH2)14COO)2-bpy)](ClO4)2. The prepared nanobelts show an enhanced fluorescence emission and relatively strong electrogenerated chemiluminescence (ECL), that have potential anal...

Clarithromycin (CLA), a broad-spectrum macrolide, is a poorly soluble drug with dissolution rate limited absorption. The aim of this investigation was to prepare CLA nanoparticles from a ternary ground mixture in the presence of sodium lauryl sulfate (SLS) and polyvinyl pyrrolidone (PVP) as co-grinding water-soluble compounds, in order to improve the drug dissolution rate. Different weight rati...

2011
CARMEN CASTAÑEDA NADINE POURTHIÉ

A high density of local natural and human-induced ground deformation 11 structures resulting from the presence of evaporites occur extensively 12 around Zaragoza (NE Spain), posing risks to infrastructures, buildings and 13 agriculture. We studied the potential of a series of interferograms 14 constructed from 29 ERS -1/2 images to detect different types of ground 15 deformation related to evap...

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