Brief description of research interests
Dr. Akhremitchev research interests are in experimental
biophysical chemistry and physical chemistry.
Biophysical research focuses on understanding the physico-chemical mechanisms
of the initial stages of amyloid fibril formation and structural properties
of fibrillar aggregates. Single-molecule force spectroscopy and AFM nanoindentation
techniques are employed to investigate forming of supramolecular structures
at different levels of assembly: from single molecules to formed fibrils.
Research in physical chemistry concentrates on experimental quantification
of the potential of mean force responsible for hydrophobic interactions.
In these studies "hydrophobic bonds" between single non-polar
molecules is ruptured by application of external force and kinetic parameters
of dissociation are obtained by statistical data analysis.
The single-molecule research further develops methodology of the dynamic
force spectroscopy to uncover information that is not available by other
techniques. Of related interest is the examination of the systematic errors
in force spectroscopy development of approaches to extract the non-biased
kinetic parameters from the measurements. |
Hydrophobic interactions measured by force spectroscopy
Technical aspects
of force spectroscopy
Measurements of pairwise interactions between amyloidogenic peptides, alkanes,
fullerenes
Nanoscale mechanical properties of supramolecular structures
Nanoindentation by AFM
Nanoscale elasticity of amyloid fibrils and protein crystals
Our research presented at 229th ACS National Meeting in San Diego was highlighted
in news release by EurekAlert!