Supramolecular And Nanobiomimetic Approach To Optimization Of Analytical Reactions | 18674
Journal of Analytical & Bioanalytical Techniques
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The base for this approach is spontaneous and self-assembly formation in the solution of different kinds of liquid
nanoreactors (micelles, microemulsions, vesicles, cyclodextrins, calixarenes, LB, L-B-L films) simultaneously with
the analytes and analytical reagents i.e. supramolecular effect. As a result of inclusion of the analytes and reagents into the
nanoreactors, the guest microenvironment changes and provokes the change of their protolytic, tautomeric, complexing and
a reactivity properties, hydration and analytical characteristics. Several features of liquid nanosystems, which are the base
for their biomimetic behavior and enhancement of the analytical and metrological characteristics in chemical analysis and
separation, are as follows:
The ability to concentrate and bring close together the components of analytical reaction in the nanoreactor
pseudophase even though they are considerably different in hydrophobicity;
The multicenter and multifunctional noncovalent interactions of the components of nanophase with solubilized
substrate; among these interactions, the hydrophobic ones plays a predominant role;
The pronounced oriented sorption and cavity effect, in which the nature and geometric compatibility of the host and
guest are the decisive factors for the binding of a substrate;
The considerable microheterogeneity of the medium within nanopseudophase which manifests itself in dramatic
changes in the dielectric constant, micropolarity, microacidity, microviscosity and other physicochemical properties
of the unique medium with gradient of these properties.
As a result, dramatic enhancements of all kinds of analytical signals in many methods takes place, and new methods
The work was supported by RFBR, project no. 12-03-00450a.
Sergei Shtykov has completed his PhD from Saratov State University (SSU) in 1980 and Doctorate dissertation (Habilitation) from the SSU in 1990. From 1993 he is a Full Professor on the chair of Analytical Chemistry and Chemical Ecology of SSU. From 2005 he is a member of Division of Analytical Chemistry of the European Association for Chemical and Molecular Sciences (DAC EuCheMS). He has published more than 250 papers in academic journals and was Supervisor of 20 PhD and 8 Doctorate dissertations. His scientific direction is an application of nanoobjects, nanotechnologies and supramolecular principles in the chemical analysis.
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