Currently, tissue engineering technologies are promising for the restoration of damaged organs and tissues. For regeneration of electrically conductive tissues or neural interfaces, it is necessary to provide electrical conductivity for the transmission of electrophysiological signals. The developed biocomposite structures presented in this article possess such properties.
View Article and Find Full Text PDFA technology for the formation and bonding with a substrate of hybrid carbon nanostructures from single-walled carbon nanotubes (SWCNT) and reduced graphene oxide (rGO) by laser radiation is proposed. Molecular dynamics modeling by the real-time time-dependent density functional tight-binding (TD-DFTB) method made it possible to reveal the mechanism of field emission centers formation in carbon nanostructures layers. Laser radiation stimulates the formation of graphene-nanotube covalent contacts and also induces a dipole moment of hybrid nanostructures, which ensures their orientation along the force lines of the radiation field.
View Article and Find Full Text PDFObjective: To optimize selection of patient for surgical treatment of comorbidities and complications of liver cirrhosis (LC) via analysis of perioperative risk factors.
Material And Methods: There were 610 patients with LC and comorbidities who underwent surgical treatment between 2015 and 2021 at the Regional Clinical Hospital No. 2.
Introduction: Oral cavity squamous cell carcinoma (OC-SCC) is the most common and aggressive malignancy of the oral cavity. Recent studies have revealed infections with human papilloma virus (HPV) as an additional risk factor for oral squamous cell carcinoma development, while distinguished role of Epstein-Barr virus (EBV) remains still uncertain. However, the evidence for association between virus infection and risk of oral squamous cell carcinoma is controversially and varies significantly by geographic regions and race.
View Article and Find Full Text PDFAim: To demonstrate the efficacy of endoscopic ligation in treatment and prevention of bleeding from esophageal varices in patients with liver cirrhosis and portal hypertension.
Material And Methods: We performed a retrospective analysis of 338 patients with liver cirrhosis who underwent ligation for the period 2009 - May 2016. There were 209 (61.