We report new enzyme-containing siloxane membranes for biosensor elaboration. Lactate oxidase immobilization from water-organic mixtures with a high concentration of organic solvent (90%) leads to advanced lactate biosensors. The use of the new alkoxysilane monomers-(3-aminopropyl)trimethoxysilane (APTMS) and trimethoxy[3-(methylamino)propyl]silane (MAPS)-as the base for enzyme-containing membrane construction resulted in a biosensor with up to a two times higher sensitivity (0.
View Article and Find Full Text PDFWe report on hydrogen peroxide sensors made through a single printing step with carbon ink containing catalytically synthesized Prussian blue nanoparticles. Despite their reduced sensitivity, the resulting bulk-modified sensors displayed both a wider linear calibration range (5 × 10-1 × 10 M) and an approximately four times lower detection limit versus the surface-modified sensors due to the dramatically decreased noise resulting in, on average, a six times higher signal-to-noise ratio. The corresponding glucose and lactate biosensors demonstrated similar and even higher sensitivities compared to those of biosensors based on surface-modified transducers.
View Article and Find Full Text PDFProbl Sotsialnoi Gig Zdravookhranenniiai Istor Med
December 2022
The need to preserve and promote health of children determine one of the basic directions of development of public social policy. It is the most important strategic purpose of modern children health care, since from it depend health of the nation, increasing of life expectancy and national economic potential.Purpose of the study is to assess health status of children of adolescent age born at term with diagnosis "fetus with low birth weight for gestational age" and with large body mass.
View Article and Find Full Text PDFProbl Sotsialnoi Gig Zdravookhranenniiai Istor Med
July 2021
The formation of code of normative legal documents ensuring activities of perinatal service is one of the most important, basic organizational technologies that determine activities of obstetrics and childhood services, contributing to increasing of natality, decreasing of maternal and infant morbidity, and maternal and childhood health care in general. The article presents analysis of formation of normative legal base that regulates functioning of perinatal service in the Russian Federation in 2000-2020. Actually, there is no objective prerequisites for fundamental alterations in the three-level system of medical care of women during pregnancy, labor, postpartum period and newborns.
View Article and Find Full Text PDFObjective: The aim of the study was to expand the understanding of pathogenesis of adenomyosis-associated pelvic pain.
Material And Methods: We studied 30 (n = 30) biopsy samples obtained after hysterectomy in women with diffuse adenomyosis of grade II-III, accompanied by severe pain syndrome, who did not receive hormonal therapy. The morphologic comparison group comprised 30 (n = 30) biopsy samples obtained from women with adenomyosis, without pain syndrome, operated on for abnormal uterine bleeding, who also did not receive hormone therapy.