Enhancing anti-adhesion properties by designing microstructure - the microscopy and spectroscopy study of the intercellular bacterial response.

This study is the first one that investigates in detail the bacterial intercellular response to the high density of crystallographic defects including vacancies created in Cu by high pressure torsion. To this aim, samples were deformed by high pressure torsion and afterward, their antibacterial properties against Staphylococcus aureus were analyzed in adhesion tests. As a reference an annealed sample was applied.

New biologically active ionic liquids with benzethonium cation-efficient SAR inducers and antimicrobial agents.

Background: An urgent need to find new methods for crop protection remains open due to the withdrawal from the market of the most toxic pesticides and increasing consumer awareness. One of the alternatives that can be used in modern agriculture is the use of bifunctional compounds whose actions towards plant protection are wider than those of conventional pesticides.

Results: In this study, we present the investigation of the biological efficacy of nine dual-functional salts containing a systemic acquired resistance (SAR)-inducing anion and the benzethonium cation.

Application of Salicylic Acid Derivative in Modifying the Iron Nutritional Value of Lettuce ( L.).

The present experiment addressed the effects of foliar sprays of different iron (Fe) concentrations (mg L), i.e., 2.

Influence of Magnetron Sputtering-Deposited Niobium Nitride Coating and Its Thermal Oxidation on the Properties of AISI 316L Steel in Terms of Its Medical Applications.

An NbN coating was produced on AISI 316L steel using reactive DC magnetron sputtering. The effects of oxidation of the NbN coating in air on the microstructure, mechanical properties, corrosion resistance, contact angle and bioactivity were investigated. Phase composition was determined using X-ray diffraction (XRD), the coatings' cross-sectional microstructure and thickness including surface morphology using a scanning electron microscope (SEM), microhardness via the Vickers method, corrosion by means of a potentiodynamic polarisation test in Ringer's solution and bioactivity by observation in an SBF solution, while the contact angle was studied using a goniometer.

From Poly(glycerol itaconate) Gels to Novel Nonwoven Materials for Biomedical Applications.

Electrospinning is a process that has attracted significant interest in recent years. It provides the opportunity to produce nanofibers that mimic the extracellular matrix. As a result, it is possible to use the nonwovens as scaffolds characterized by high cellular adhesion.

Resistance Inducers for the Protection of Pedunculate Oak ( L.) Seedlings against Powdery Mildew .

Oak powdery mildew caused by (Griffon and Maubl.; U. Braun & S.

A New Benzothiadiazole Derivative with Systemic Acquired Resistance Activity in the Protection of Zucchini () against Viral and Fungal Pathogens.

The ability of plant resistance inducers to provide protection against viral diseases is one of their main advantages over conventional pesticides. In the case of viral diseases that cannot be controlled directly with pesticides, insecticides are used to control the vectors of viruses. However, the effectiveness of such treatments is strictly dependent on the time of application.

Synthesis, characterization and biological activity of bifunctional ionic liquids based on dodine ion.

Background: Development of new plant protection strategies has become an urgent matter in modern agriculture, in view of the evidently proved negative effect of currently used active ingredients of pesticides. In recent years, much effort has been made to eliminate the use of pesticides established to be toxic to pollinators.

Results: In this study, we present a group of new bifunctional ionic liquids based on dodine (N-dodecylguanidine) cation whose physical and biological properties have been modified relative to those of the commercially available N-dodecylguanidine acetate.

Push-Out Method for Micro Measurements of Interfacial Strength in Aluminium Alloy Matrix Composites.

The main goal of this work was the evaluation of the interfacial strength of the carbon fibres/aluminium matrix interface dependently on the utilised composite fabrication method, namely high pressure die casting and gas pressure infiltration. In addition, the influence of a Ni-P coating on the C-fibres was investigated. The proposed measurements of the interfacial strength were carried out by means of the "push-out" method.

Changes in the expression level of genes encoding transcription factors and cell wall-related proteins during Meloidogyne arenaria infection of maize (Zea mays).

Background: Meloidogyne arenaria is an economically important root-knot nematode (RKN) species whose hosts include maize (Zea mays). The plant response to RKN infection activates many cellular mechanisms, among others, changes in the expression level of genes encoding transcription and elongation factors as well as proteins related to cell wall organization.

Methods And Results: This study is aimed at characterization of expression of selected transcription and elongation factors encoding the genes WRKY53, EF1a, and EF1b as well as the ones encoding two proteins associated with cell wall functioning (glycine-rich RNA-binding protein, GRP and polygalacturonase, PG) during the maize response to M.

Hydrostatic Extrusion and Nano-Hardness of Nanocrystalline Grade 2 Titanium.

The structure and corrosion resistance of Grade 2 titanium subjected to the hydroextrusion processes were examined. The microstructure was characterized using optical microscopy and transmission electron microscopy. The corrosion resistance was determined using the impedance and potentiodynamic methods, in 0.