Multicomponent complex formation between pyrimethamine, cyclodextrins and water-soluble polymers
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چکیده
منابع مشابه
Multicomponent complex formation between vinpocetine, cyclodextrins, tartaric acid and water-soluble polymers monitored by NMR and solubility studies.
This work deals with multicomponent complex formation of vinpocetine (VP) with beta-cyclodextrin (betaCD), sulfobutyl ether beta-cyclodextrin (SBEbetaCD) and tartaric acid (TA), in the presence or absence of water-soluble polymers, in aqueous solution. Complexation was monitored by phase-solubility and proton nuclear magnetic resonance ((1)H NMR) studies. TA demonstrated a synergistic effect on...
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Both deoxyribonucleic and ribonucleic acids appear to possess a secondary structure, by virtue of the fact that the purine and pyrimidine bases can undergo hydrogen bonding with each other. In the case of DNA, this secondary structure takes the form of a long, highly ordered helix composed of two strands held to each other by hydrogen bonds between the bases (l-3). The secondary structure of RN...
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Interactions between 4-thiothymidine and water-soluble cyclodextrins: Evidence for supramolecular structures in aqueous solutions
Since several years the inclusion of organic compounds (guests) within the hydrophobic cavity (host) of cyclodextrins (CDs) has been the subject of many investigations. Interestingly, the formation of inclusion complexes could affect the properties of the guest molecules and, for example, the influence of the delivery system can be a method to improve/change the photochemical behavior of the gu...
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ژورنال
عنوان ژورنال: Brazilian Archives of Biology and Technology
سال: 2011
ISSN: 1516-8913
DOI: 10.1590/s1516-89132011000500014