Szabolcs Tallósy

University of Szeged · Institute of Surgical Research

Here we report a facile sulfation of TiO2 semiconductor photocatalyst by simply grinding and calcination method using elemental sulfur from desulfurisation of petroleum. The successful sulfation of the prepared visible light active was proved by FT‐IR and XPS measurements, as well. The photocatalytic tests revealed that the S‐TiO2‐2 is the most eff...

The COVID-19 pandemic has highlighted the importance of air sterilization and disinfection. Besides the regular cleaning and disinfection of surfaces it is at least as important to reduce the number of airborne microorganisms as they are known to play an important role in the spreading of different infections. Herein, we report a facile preparation...

Layered double oxide (LDO) photocatalyst microparticles were synthetized with special radial lamellar orientation. We presented that the 25.31 ± 2.34 μm LDO particles with rough surface can incorporated in fluoropolymer solution and resulted a composite layer with dual superhydrophobic and photocatalytic properties with high bacterial adhesion and...

Introduction Sepsis can lead to organ dysfunctions with disturbed oxygen dynamics and life-threatening consequences. Since the results of organ-protective treatments cannot always be transferred from laboratory models into human therapies, increasing the translational potential of preclinical settings is an important goal. Our aim was to develop a...

Despite their clinical effectiveness, a growing body of evidence has shown that many classes of antibiotics lead to mitochondrial dysfunction. Ceftriaxone and Rifaximin are first choice perioperative antibiotics in gastrointestinal surgery targeting fundamental processes of intestinal bacteria; however, may also have negative consequences for the h...

A number of studies have demonstrated explicit bioactivity for exogenous methane (CH 4 ), even though it is conventionally considered as physiologically inert. Other reports cited in this review have demonstrated that inhaled, normoxic air-CH 4 mixtures can modulate the in vivo pathways involved in oxidative and nitrosative stress responses and key...

We hypothesized that the composition of sepsis-inducing bacterial flora influences the course of fecal peritonitis in rodents. Saline or fecal suspensions with a standardized dose range of bacterial colony-forming units (CFUs) were injected intraperitoneally into Sprague–Dawley rats. The qualitative composition of the initial inoculum and the ascit...

Background and aims: The systemic host response in sepsis is frequently accompanied by central nervous system (CNS) dysfunction. Evidence suggests that excessive formation of neutrophil extracellular traps (NETs) can increase the permeability of the blood-brain barrier (BBB) and that the evolving mitochondrial damage may contribute to the pathogen...

Introduction: Sepsis is a dysregulated host response to infection with macro- and microhemodynamic deterioration. Kynurenic acid (KYNA) is a metabolite of the kynurenine pathway of tryptophan catabolism with pleiotropic cell-protective effects under pro-inflammatory conditions. Our aim was to investigate whether exogenously administered KYNA or the...

The hypoxia-sensitive endothelin (ET) system plays an important role in circulatory regulation through vasoconstrictor ETA and ETB2 and vasodilator ETB1 receptors. Sepsis progression is associated with microcirculatory and mitochondrial disturbances along with tissue hypoxia. Our aim was to investigate the consequences of treatments with the ETA re...

Introduction Surfaces with attached semiconductor photocatalyst content can kill numerous microorganisms because of their photocatalytic properties. There are various techniques to develop antimicrobial surfaces, but only a few optimize the structure and the chemical properties. Objectives Both the TiO2/HAp composites and the TiO2/polymer hybrid m...

In the search for highly active and stable photocatalysts, significant efforts are devoted to find both new materials and innovative synthetic methods. In this study, an environmentally friendly and sustainable approach, dry reactive milling, was employed to synthesize two different semiconducting oxide nanomaterials, namely TiO2 and ZnO using poly...

Aqueous suspensions of spherical ZnMgAl-layered double hydroxides [LDH(sph)] and antibacterial silver nanoparticles (AgNPs) deposited on the lamellae of montmorillonite were used for the synthesis, of composites, which behave like coherent gels at low pH (<~4.5) and incoherent sols at higher pH values (>~4.5). The composition of the composite was c...

Poly(methacrylic acid-co-butyl methacrylate) copolymer was synthesized which showed more than tenfold swelling above the pH of 4.5 within a narrow (0.5) pH range with the monomer composition of 85 mol% MAA and 15 mol% BMA. The water uptake properties of the prepared copolymers were adjustable by the monomer composition. Thin films were prepared con...

Nanosilver-modified TiO2 and ZnO photocatalysts were studied against methicillin-resistant Staphylococcus aureus on the surface and against naturally occurring airborne microorganisms. The photocatalysts/polymer nanohybrid films were prepared by spray coating technique on the surface of glass plates and on the inner surface of the reactive light so...

Silver functionalized TiO2/poly(etyl-acrylate co methyl-methacrylate) nanohybrid films were proved to inactivate nosocomial bacteria. The films were prepared on glass plates by spray coating technique and their thickness were 1.48±0.1 μm. During photocatalysis, the films were illuminated with visible LED-light source (λ = 405 nm). The optical and p...

Phosphate and silver co-functionalized TiO2 catalysts were prepared by varying amount of silver (0-1 wt.%) with constant phosphate content (0.25 wt.%). Two methods, the well-know photodeposition and a new simple method, i.e. heterocoagulation, are presented for preparing Ag-TiO2 and the optical, photochemical and photobiological properties of the d...