Publications by authors named "V O Koroteev"

The article presents a literature review on the prevalence, relevance, social significance, and principles of medical rehabilitation of children with different types of scoliosis in scoliotic disease. The current classification, diagnostics features, and clinical course of the disease are addressed. Current approaches to the choice of medical rehabilitation methods for scoliotic disease in children are described: therapeutic exercise, hydrokinesiotherapy, massage, physiotherapeutic treatment, kinesiotaping, and corseting.

View Article and Find Full Text PDF

Single-walled carbon nanotubes (SWCNTs) are a perfect host for the formation of one-dimensional phosphorus structures and to obtain hybrid materials with a large P-C ratio. This work presents a procedure for high-yield phosphorus filling of commercial Tuball SWCNTs and efficient removal of phosphorus deposits from the external nanotube surface. We probed white and red phosphorus as precursors, varied the synthesis temperature and the ampoule shape, and tested three solvents for sample purification.

View Article and Find Full Text PDF

We identify the "missing" 1D-phosphorus allotrope, red phosphorus chains, formed in the interior of tip-opened single-walled carbon nanotubes (SWCNTs). Via a comprehensive experimental and theoretical study we show that in intermediate diameter cavities (1.6-2.

View Article and Find Full Text PDF

We investigated the insertion-extraction behaviors of Li and Na ions in graphitic materials using solid-state NMR. A unique advantage of high-degree C-isotope enrichment of graphitic material allowed sensitive and metastable graphite intercalation compounds to be measured in a short time. Ex situ C magic-angle spinning NMR spectra of C fine-grained graphite are presented as a function of state-of-charge.

View Article and Find Full Text PDF

Double-walled carbon nanotubes (DWCNTs) are fluorinated using (1) fluorine F at 200 °C, (2) gaseous BrF at room temperature, and (3) CF radio-frequency plasma functionalization. These have been comparatively studied using transmission electron microscopy and infrared, Raman, X-ray photoelectron, and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. A formation of covalent C-F bonds and a considerable reduction in the intensity of radial breathing modes from the outer shells of DWCNTs are observed for all samples.

View Article and Find Full Text PDF