نتایج جستجو برای: cyclodextrin hp

تعداد نتایج: 19428  

Journal: :Journal of chromatography open 2022

Ephedrine and pseudoephedrine can be used as precursors for the illicit synthesis of stimulant drugs, such methamphetamine methcathinone. For this reason, an enantioselective capillary electrokinetic chromatography method was developed separation ephedrine enantiomers. After testing two different charged or chargeable cyclodextrins (β-cyclodextrin sulphate carboxymethyl-β-cyclodextrin) a few mi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1393

متابولیت های باکتری ها می تواند به عنوان ترکیبات دارویی جایگزین در درمان سرطان استفاده شود. امروزه باکتری ها به عنوان کاندید درمانی سرطان مورد توجه قرار گرفته اند. هدف این مطالعه ¬بررسی میانکنش نانوذرات کیتوزان حامل پروتئین نوترکیب hp-nap هلیکوباکترپیلوری بر مدل سرطانی سینه در شرایط آزمایشگاهی و مدل حیوانی بود. پروتئین نوترکیب hp-napa با استفاده از کروماتوگرافی میل ترکیبی با رزین نیکل تخلیص شد....

2006
K. P. R. CHOWDARY VIJAYA SRINIVAS

Complexation of celecoxib with ß-cyclodextrin and hydroxypropyl-ß-cyclodextrin in the presence and absence of polyvinylpyrrolidone and the effect of polyvinylpyrrolidone on the solubilizing efficiency of cyclodextrins and on the dissolution rate of celecoxib from the cyclodextrin complexes were investigated. The phase solubility studies indicated the formation of celecoxib-ß-cyclodextrin and ce...

Journal: :Journal of biomaterials science. Polymer edition 2014
Chau-Minh Phan Lakshman N Subbaraman Lyndon Jones

PURPOSE The antifungal agent natamycin can effectively form inclusion complexes with beta-cyclodextrin (β-CD) and 2-hydroxypropyl-β-cyclodextrin (HP-βCD) to improve the water solubility of natamycin by 16-fold and 152-fold, respectively (Koontz, J. Agric. Food. Chem. 2003). The purpose of this study was to develop contact lens materials functionalized with methacrylated β-CD (MβCD) and methacry...

Journal: :Environmental science & technology 1994
M L Brusseau X Wang Q Hu

The removal of low-polarity organic compounds from soils and aquifers by water flushing is often constrained by sorption interactions. There is great interest in developing systems that can enhance the transport of organic compounds through porous media, thus facilitating remediation. We investigated the potential of hydroxypropylP-cyclodextrin (HPCD), a microbially produced compound, to reduce...

Journal: :The Journal of organic chemistry 2001
Y Liu Y Chen L Li H Y Zhang S X Liu X D Guan

To investigate quantitatively the cooperative binding ability of several beta-cyclodextrin oligomers bearing single or multiligated metal center(s), the inclusion complexation behavior of four bis(beta-cyclodextrin)s (2-5) linked by 2,2'-bipyridine-4,4'-dicarboxy tethers and their copper(II) complexes (6-9) with representative dye guests, i.e., methyl orange (MO), acridine red (AR), rhodamine B...

Bacillus licheniformis RM44 was isolated from hot spring near Karachi and screened forthe production of extracellular amylase Amy RM44. Amy RM44 was purified to homogeneityon a single step by affinity chromatography using insoluble corn starch. The molecular weightof Amy RM44 was estimated to be 66 kDa by SDS–PAGE and zymographic analysis. Nine foldpurification was achieved with the specific ac...

Journal: :Journal of Mathematical Analysis and Applications 1971

Journal: :Comparative biochemistry and physiology. Part A, Molecular & integrative physiology 2001
D Wray-Cahen T J Caperna N C Steele

Fatty acid-free albumin has been the standard carrier for intravenous infusion of fatty acids to study in vivo lipid metabolism. However, subjects can have adverse reactions to infusion of albumin. We sought an alternative to albumin as a carrier for intravenous infusion of fatty acids, using the pig as a model. Cyclodextrins are naturally occurring water-soluble molecules that can serve as car...

Journal: :Organic & biomolecular chemistry 2004
Julia S Lock Bruce L May Philip Clements Stephen F Lincoln Christopher J Easton

The preparation of 6(A)-deoxy-6(A)-(6-(2-(1,4,7,10-tetraoxa-13-azacyclopentadecan-13-yl)acetamido)hexylamino)-alpha-cyclodextrin, 3, 6(A)-deoxy-6(A)-(6-(2-(1,4,7,10,13-pentaoxa-16-azacyclooctadecan-16-yl)acetamido)hexylamino)-alpha-cyclodextrin, 4, and their beta-cyclodextrin analogues, 5 and 6, are described. (1)H (600 MHz) ROESY NMR spectra of the C(6) substituted beta-cyclodextrins, 5 and 6,...

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