Document Type
Article
Publication Date
2020
Keywords
Aqueous Two-phase Systems, Partitioning, Organic Compounds, Drugs, Proteins, Blood–tissue Distribution
Digital Object Identifier (DOI)
https://doi.org/10.3390/polym12071452
Abstract
Analysis of the partition coefficients of small organic compounds and proteins in different aqueous two-phase systems under widely varied ionic compositions shows that logarithms of partition coefficients for any three compounds or proteins or two organic compounds and one protein are linearly interrelated, although for protein(s) there are ionic compositions when the linear fit does not hold. It is suggested that the established interrelationships are due to cooperativity of different types of solute–solvent interactions in aqueous media. This assumption is confirmed by analysis of distribution coefficients of various drugs in octanol-buffer systems with varied ionic compositions of the buffer. Analysis of the partition coefficients characterizing distribution of variety of drugs between blood and different tissues of rats in vivo reported in the literature showed that the above assumption is correct and enabled us to identify the tissues with the components of which the drug(s) may engage in presumably direct interactions. It shows that the suggested assumption is valid for even complex biological systems.
Rights Information
This work is licensed under a Creative Commons Attribution 4.0 License.
Was this content written or created while at USF?
Yes
Citation / Publisher Attribution
Polymers, v. 12, issue 7, art. 1452
Scholar Commons Citation
da Silva, Nuno R.; Ferreira, Luisa A.; Madeira, Pedro P.; Teixeira, José A.; Uversky, Vladimir N.; and Zaslavsky, Boris Y., "Linear Relationships Between Partition Coefficients of Different Organic Compounds and Proteins in Aqueous Two-phase Systems of Various Polymer and Ionic Compositions" (2020). Molecular Medicine Faculty Publications. 883.
https://digitalcommons.usf.edu/mme_facpub/883
