Results 161 to 170 of about 6,345 (212)

Cationic β-cyclodextrin bilayer vesicles

Chem. Commun., 2002
Cationic amphiphilic beta-cyclodextrins, substituted with hydrophobic n-alkylthio chains at the primary hydroxyl side and hydrophilic omega-amino-oligo(ethylene glycol) units at the secondary side, form bilayer vesicles with a diameter of 30-35 nm (when alkyl = hexadecyl) or nanoparticles with a diameter of ca. 120 nm (when alkyl = hexyl) in water.
DONOHUE R, MAZZAGLIA A, RAVOO BJ, DARCY R   +3 more
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Toxicity Studies of Beta-Cyclodextrin

1982
The acute oral and parenteral LD-50 of beta-cyclodextrin was established on rats, mice and dogs.
Vera Gergely, G. Sebestyén, S. Virág
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Bitterness Reduction with Beta-Cyclodextrin

1988
The reduction of bitternes of three drugs having different but scarcerly tolerable bitterness (libexine hydrochloride, =LBX, pinaverium bromide =PVB and acetaminophen, =AAP) was studied by beta-cyclodextrin (βCD) complexation in solution and in solid state.
V. Weiszfeiler, J. Szejtli
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Stabilisierung fettlöslicher Vitamine mit beta‐Cyclodextrin

Starch - Stärke, 1980
AbstractDie Stabilität und Dispergierbarkeit der wichtigsten fettlöslichen Vitamine D3, K3, A und E können durch Cyclodextrin‐Komplexierung wesentlich verbessert werden. Zwei Moleküle ß‐Cyclodextrin bilden eine “Kapsel” für ein Molekül Cholecalciferol.
J. Szejtli, E. Bolla
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Photochemistry of benzophenone-capped .beta.-cyclodextrin

The Journal of Organic Chemistry, 1991
The photochemistry of 6 A ,6 C -(3,3'-benzophenonedisulfonyl)-β-cyclodextrin (1) is explored. Irradiation of 1 in H 2 O or aqueous CH 3 CN results in regioselective oxidation of a glucose C6 hydroxymethyl group, giving 2a and 2 b via intramolecular H-abstraction by the excited benzophenone group.
Karen L. Berger, Alexandra L. Nemecek, Christopher J. Abelt   +2 more
openaire   +1 more source

Inclusion complexes of sulfanilamide with beta-cyclodextrin and 2-hydroxypropyl-beta-cyclodextrin

2014
Sulfanilamide belongs to the group of drugs that have a bacteriostatic effect on different pathogenic microorganisms. This activity originates from the competitive antagonism with p-aminobenzoic acid, which is an integral part of folic acid. The safe use of sulfanilamide is limited due to poor solubility in the aqueous medium.
Tacić, Ana, Savić, Ivan, Nikolić, Vesna, Savić, Ivana, Ilić-Stojanović, Snežana, Ilić, Dušica, Petrović, Slobodan, Popsavin, Mirjana, Kapor, Agneš   +8 more
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Biomimetic artificial ion channels based on beta-cyclodextrin

Chemical Communications, 2013
Star polymers based on β-cyclodextrin were synthesized by a ''click-chemistry'' process and characterized by NMR, SEC and BLM. The resulting triazole functional groups create, at a specific pH range, electrostatic hindrance between pores inserted in lipid bilayers, preventing their aggregation, allowing formation of well-defined isolated unitary pores ...
El Ghoul, Yassine, Renia, Ruddy, Faye, Ibrahima, Rassou, Soumassoudrane, Badi, Nezha, Bennevault-Celton, Véronique, Huin, Cécile, Guégan, Philippe   +7 more
openaire   +2 more sources

Improved bioavailability from a spironolactone beta-cyclodextrin complex

European Journal of Clinical Pharmacology, 1991
The relative bioavailabilty of spironolactone from a complex with beta-cyclodextrin has been evaluated. Capsules containing 100 mg micronised spironolactone powder were compared with 100 mg spironolactone beta-cyclodextrin complex in 8 healthy volunteers by a single dose, double blind, crossover pharmacokinetic study.
N T, Yusuff, P, York, H, Chrystyn, P N, Bramley, R D, Swallow, B R, Tuladhar, M S, Losowsky   +6 more
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Effects of beta-cyclodextrin and hydroxypropyl-beta-cyclodextrin on minoxidil solutions

The effects of beta-cyclodextrin (β-CD) and hydroxypropyl-beta-cyclodextrin (HP-β- CD) on solubility, stability and membrane permeation of minoxidil were investigated. From the solubility diagrams showed that β-CD increased minoxidil solubility by Bs- type complex formation while HP-β-CD gave AL-type complex formation.
openaire   +1 more source

[Study on the inclusions of xindonin A-beta-cyclodextrin and xindonin B-beta-cyclodextrin].

Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 2002
The inclusions compounds of Xindonin A-beta-cyclodextrin and Xindonin B-beta-cyclodextrin were prepared by the liquid-phase method in aqueous solution. They were confirmed by thin layer chromatography, differential thermal analysis and specific rotation. Changes of ultraviolet spectrum were determined. The composition ratios of inclusion compounds were
Y, Zhang, H, Xue, X, Kou, G, Wang
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