نتایج جستجو برای: β cyclodextrin sulfuric acid

تعداد نتایج: 911766  

Journal: :Organic & biomolecular chemistry 2012
Babak Kaboudin Yaghoub Abedi Tsutomu Yokomatsu

We report here the one-pot synthesis of 1,2,3-triazoles of arylboronic acids in water. An efficient method has been developed for the synthesis of 1,2,3-triazoles via a one-pot reaction of an arylboronic acid with sodium azide in the presence of Cu(2)-β-CD (CD = Cyclodextrin) as a nanocatalyst in water followed by a click cyclization reaction with an alkyne at room temperature in air without an...

2014
Anxo Fernández-Ferreiro Noelia Fernández Bargiela María Santiago Varela Maria Gil Martínez Maria Pardo Antonio Piñeiro Ces José Blanco Méndez Miguel González Barcia Maria Jesus Lamas FranciscoJ Otero-Espinar

Fluconazole was studied with two different hydrophilic cyclodextrins (hydroxypropyl-β-cyclodextrin (HPBCD) and sulfobutyl ether-β-cyclodextrin (SBECD)) for the formation of inclusion complexes. HPBCD and SBECD showed low cell cytotoxicity in human keratocytes as assessed by the label-free xCELLigence system for real-time monitoring. The fluconazole-HPBCD complex was incorporated into an ion-sen...

Journal: :Molecules 2018
Eunae Cho Seunho Jung

The poor water solubility of paclitaxel causes significant problems in producing cancer therapeutic formulations. Here, we aimed to solubilize paclitaxel using biocompatible cyclic carbohydrates. Generally recognized as safe, labeled β-cyclodextrin (β-CD), a cyclic α-1,4-glucan consisting of seven glucoses, was prepared, and bio-sourced cyclosophoraoses (CyS), which are unbranched cyclic β-1,2-...

Journal: :British journal of pharmacy 2022

Disulfiram (DS) has an excellent anti-viral activity; however, its low water-solubility and first-pass metabolism are limiting clinical applications. Cyclodextrins (CDs) have been used as solubility enhancers carriers of DS proposed for inhalation to treat SARS-CoV-19. Two types CDs (hydroxypropyl β-cyclodextrin sulfobutyl ether β-cyclodextrin) were form inclusion complexes wi...

Journal: :Processes 2023

The influence of oligosaccharides (α-cyclodextrin, β-cyclodextrin and γ-cyclodextrin), a polysaccharide, sodium hyaluronate (NaHy), on the diffusion aqueous solutions cobalt chromium chlorides has been investigated. Cobalt are constituents metal alloys for biomedical use, including dental prostheses. Thus, release these ions in human body can lead to harmful biological effects. interaction with...

2017
Iryna Trofymchuk Nadiia Roik Lyudmila Belyakova

In this research, we report on the synthesis of mesoporous silicas with various quantities of immobilized oligosaccharide groups and different pore ordering degree. The hydrothermal co-condensation of tetraethyl orthosilicate and β-cyclodextrin-containing organosilane in the presence of cetyltrimethylammonium bromide template was employed. The purpose of this investigation was to show the oppor...

Journal: :Radiation research 1960
C M HENDERSON N MILLER

Ferric Species Standard ferric sulfate solutions were prepared by dissolving spectrographically pure iron rod (Johnson Matthey) in sulfuric acid and oxidizing with hydrogen peroxide. The decadic molar extinction coefficient of ferric ion in 0.8 N sulfuric acid at 24.9?C was found to be 2199 ? 4 liters mole-' cm-l at 304 m,/. The effect of a decrease of acidity and of added ferrous and cupric su...

Journal: :Journal of drug targeting 2015
Craig Russell Sumyra Begum Yasar Hussain Majad Hussain David Huen Ayesha S Rahman Yvonne Perrie Afzal R Mohammed

Ramipril is used mainly for the treatment of hypertension and to reduce incidence of fatality following heart attacks in patients who develop indications of congestive heart failure. In the paediatric population, it is used most commonly for the treatment of heart failure, hypertension in type 1 diabetes and diabetic nephropathy. Due to the lack of a suitable liquid formulation, the current stu...

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