Abstract The emerging antibiotic resistance in pathogenic bacteria is a key problem modern medicine that has led to search for novel therapeutic strategies. A potential approach managing such involves the use of their natural killers, namely lytic bacteriophages. Another effective method metal nanoparticles with antimicrobial properties. However, phages armed as an strategy, particularly respect biofilms, remains unexplored. Here, we show T7 silver exhibit greater efficacy terms controlling...

Solar-driven photocatalysis has shown great potential as a sustainable wastewater treatment technology that utilizes clean solar energy for pollutant degradation. Consequently, much attention is being paid to the development of new, efficient and low-cost photocatalyst materials. In this study, we report photocatalytic activity NH4V4O10 (NVO) its composite with rGO (NVO/rGO). Samples were synthesized via facile one-pot hydrothermal method successfully characterized using XRD, FTIR, Raman,...

Two series of unsymmetrical 4,4′-dialkylazoxy compounds: have been obtained, where K = C m H2m+l with 2 to 10. The method their synthesis and the results measurements phase transition temperatures, dielectric constants, refractive indices densities are presented. Compounds I in a lesser degree compounds II low-melting nematics small positive anisotropy constant. In both strong alteration was observed clearing point, constant Δε birefringence Δn number ofcarbon atoms alkyl radical.

Abstract Glassy carbon electrodes modified with films composed of a network single‐wall nanotubes (SWCNTs) and liquid‐crystalline cubic phase were used for dioxygen reduction catalyzed by laccase. In the presence pristine SWCNTs, overpotential was decreased 0.5 V ( E 1/2 =−0.09 V). Adding laccase to system shifted potential oxygen +0.52 vs. Ag/AgCl reference electrode. Carbon increased electrode working area improved conductivity film. The current density further enhanced using common...

Hybrid nanoflowers are structures consisting of organic (enzymes, proteins, nucleic acids) and inorganic components (mostly metal phosphates) with a flower-like hierarchical structure. Novel hybrid based on bovine serum albumin (BSA) hydroxyapatite (HA) were obtained characterized. Study BSA-HA as potential drug delivery system is reported for the first time.Embedding ciprofloxacin in structure was confirmed by ATR-FTIR thermogravimetric analysis. The phase determined X-ray diffraction....

A new solid-contact potentiometric ion-selective electrode for the determination of SCN− (SCN-ISE) has been described. Synthesized phosphonium derivative calix[4]arene was used as a charged ionophore. The research included selection membrane composition, ISEs metrological parameters and SCN-ISE application thiocyanate in human saliva. Preparation plasticizer composition type material. study carried out using ISE with liquid internal electrolyte (LE-ISE) electrodes made glassy carbon (GC-ISE)...

Carbon nanotubes were successfully functionalized for the first time in a free radical phosphonylation reaction. Three synthetic protocols proposed. and diethylphosphite reacted presence of known initiator, such as azobisisobutyronitrile, single electron oxidant—Mn(OAc)3, or under UV radiation. The material was fully characterized by means spectroscopic methods, together with microscopic, surface area thermogravimetric analyses. UV-illumination found to be most effective approach introducing...

The construction of nanostructured biocatalytic electrode for the reduction dioxygen to water is described. novelty approach relies in application single-walled carbon nanotubes (SWCNTs) covalently modified with redox mediator 2,2-azinobis-(3-ethylbenzothiazoline)-6-sulfonate) (ABTS) communicate electronically laccase active sites electrode. were either at ends/defect or on side walls. ABTS moiety was connected by sulfonamide bond, which did not disrupt its electrochemical activity....

Ammonium metavanadate, NH4VO3, plays an important role in the preparation of vanadium oxides and other ammonium compounds, such as NH4V3O8, (NH4)2V3O8, NH4V4O10, which were found to possess interesting electrochemical properties. In this work, a new route for synthesis NH4VO3 is proposed by mixing organic salt V2O5 suitable solvent. The one-step procedure carried out at room temperature. Additionally, need pH control use oxidants necessary known methods eliminated. mechanism formation...

There is growing interest for bioanalytical tools that might be designed a specific user, primarily research purposes. In this perspective, new, highly stable potentiometric sensor based on glassy carbon/polyazulene/NH4+-selective membrane was developed and utilized urease activity determination. Urease-urea interaction studies were carried out the Michaelis-Menten constant established enzymatic reaction. Biofunctionalization of ammonium ion-selective with lead to urea biosensor remarkably...

This paper presents a novel biosensor for detecting the active metabolite of irinotecan, SN38, with high selectivity and sensitivity. The utilizes dsDNA decamer (5'-GCGTTGTCGC-3') that selectively interacts SN38. biosensor, consisting screen-printed graphite electrode as recognition layer, demonstrates stability, sensitivity, towards SN38 through electrochemical studies. It offers wide linear range 1-200 nM, comparable to high-performance liquid chromatography (HPLC) method, sensitivity 57...

The influence of different solvents, including aqueous and nonaqueous types, on the physicochemical properties V2O5 nanostructures was thoroughly investigated. Various characterization techniques, such as XRD, XPS, FTIR, Raman spectroscopy, UV-vis DRS, SEM, TEM, BET, were employed to analyze obtained materials. Additionally, adsorption synthesized for methylene blue examined, kinetic parameters calculated. results demonstrate that morphology crystals can be finely controlled by manipulating...