DLC coatings have low adhesive bond strength with the substrate and a high level of residual stresses. This paper is devoted to researching complex characteristics DLC-Si coating deposited on samples SiAlON ceramics intermediate (CrAlSi)N pre-formed improve employing vacuum-plasma spraying. were formed by chemical vapor deposition in gas mixture acetylene, argon, tetramethylsilane supplied thro...

We report on experiments on the underlying physical mechanisms in the Dry(DLC) and Steam Laser Cleaning (SLC) process. Using a frequency doubled, Q-switched Nd:YAG laser (FWHM=8 ns) we removed polystyrene (PS) particles with diameters from 110-2000 nm from industrial silicon wafers by the DLC process. The experiments have been carried out both in ambient conditions as well as in high vacuum (10...

Diamond-like carbon (DLC) films had been formed as a surface treatment for intracorporal device decreasing the coefficient of friction. DLC film showed significant stability without being damaged during acid immersion and high-pressure steam sterilization. However, bacteria that adhere to medical devices lead induction infectious diseases associated with therapeutic actions. Therefore, maintena...

Based on the methods of non-equilibrium thermodynamics, it was found that implementation spontaneous processes with positive entropy production during friction leads to an increase in wear intensity. Non-spontaneous negative lead a decrease The tribological characteristics diamond-like carbon (DLC) different silicon content were studied. intensity practically does not correlate coefficient. It ...

Abstract Diamond-like carbon (DLC) films are deposited on rubber surfaces to protect the components, and surface pretreatment of substrates prior film deposition can improve adhesion between DLC rubber. Thus, principal purpose this work concentrates determining effects argon (Ar), oxygen (O 2 ), nitrogen (N hydrogen (H ) plasma pretreatments friction performance (DLC/rubber). The results indica...

The tribological behaviour of diamond-like carbon (DLC) and graphene nanoplatelets (GNP) nanocomposite has not been previously explored in a lubricated environment, with some previous studies reporting only on materials the surface DLC. In this study DLC-GNP films various GNP coverages were synthesised by 3 step process: spin coating suspension, heat treatment, DLC deposition. study, effect cov...

BACKGROUND We previously showed that phospholipase C (PLC)-δ1 activity was enhanced by 3-fold in patients with coronary spastic angina (CSA). We also reported that p122Rho GTPase-activating protein/deleted in liver cancer-1 (p122RhoGAP/DLC-1) protein, which was discovered as a PLC-δ1 stimulator, was upregulated in CSA patients. We tested the hypothesis that p122RhoGAP/DLC-1 overexpression cause...

The aim of this study was to quantify the extent of abutment screw loosening and thus understand the role of frictional and wear factors in abutment screw loosening by using a cyclic loading device to compare Diamond Like Carbon (DLC)-coated and non-coated implants. The properties of DLC films, including hardness, wear resistance, chemical stability, and biocompatibility, are similar to those o...

PUF family translational repressors are conserved developmental regulators, but the molecular function provided by the regions flanking the PUF RNA-binding domain is unknown. In C. elegans, the PUF proteins FBF-1 and FBF-2 support germline progenitor maintenance by repressing production of meiotic proteins and use distinct mechanisms to repress their target mRNAs. We identify dynein light chain...

NMDA receptors interact directly with postsynaptic density-95 (PSD-95), a scaffold protein that organizes a cytoskeletal- signaling complex at the postsynaptic membrane. The molecular mechanism by which the PSD-95-based protein complex is trafficked to the postsynaptic site is unknown but presumably involves specific motor proteins. Here we demonstrate a direct interaction between the PSD-95-as...