Introduction. This mini-review examines the mechanisms of damage to bacterial biofilms (BB) by particles metals (Au, Ag, Fe, Cu, Zn, Mg) and their oxides (AuО, SiO, Fe2О3, Ag2O, CuO, TiO2, ZnO, MgO). Emphasis is placed on mechanism which includes formation reactive oxygen species that affect redox state cell and, as a result, its death. The antibacterial action particles, well effect porosity d...

Metal oxide-based resistive random access memory devices are highly attractive candidates for next-generation nonvolatile memories, but the switching phenomena remain poorly understood. This article focuses on microscopic understanding of initial forming step, which is decisive process. The integrated effect in Ti/ HfO2/ TiWN metal insulator structures studied. After forming, transmission elect...

Lymphocyte function-associated antigen 1 (LFA-1), a member of beta2-integrin family, exerts multiple roles in host T cell immunity and has been identified as a useful drug-development target for inflammatory and autoimmune diseases. Applying the findings that primary resting T cells absorb nanometric membrane vesicles derived from antigen presenting cells (APC) via dual receptor/ligand interact...

New issues come from the advent nanometric devices: defect and fault tolerance -at the physical, circuit and most importantly at the system levelis an enabling technology for building reliable nanoelectronic systems. Semiconductor manufacturers are responding to these challenges by introducing a variety of technical innovations, including new manufacture testing methodologies, virtual testing, ...

Extracellular vesicles (EVs) are a family of cell-derived membrane that present in almost all body fluids. EVs have gained significant interest over the last decades as mediators key functions numerous patho-physiological condition (clearance, signalling, trophic support, cargo delivery) and potential prognostic or diagnostic biomarkers. The endogenous delivery capacities these nanometric entit...

Archaea, bacteria, and eukarya secrete membrane microvesicles (MVs) as a mechanism for intercellular communication. We report the isolation and characterization of MVs from the probiotic strain Lactobacillus casei BL23. MVs were characterized using analytical high performance techniques, DLS, AFM and TEM. Similar to what has been described for other Gram-positive bacteria, MVs were on the nanom...

We have investigated the effect of sphingomyelin (SM) to ceramide enzymatic conversion on lipid bilayers using Giant Unilamellar Vesicles (GUVs). Sphingomyelinase was added externally to GUVs containing various proportions of SM. In situ asymmetrical SM conversion to ceramide reduced the area of one leaflet. In the absence of equilibration of all the lipids between the two leaflets, a mismatch ...