The paper presents an in-depth study of the bio-tribological performance on silicon nitride matrix ceramic composites containing hexagonal boron (hBN) with different content. Ultra-high molecular weight polyethylene (UHMWPE) under simulated body fluid lubrication, and fluid-lubricated sliding tests were performed a universal friction wear tester. results showed that incorporation hBN into reduc...

Ceramic/fiber composite armor is a hot research topic of bulletproof equipment. The lightweight design ceramic materials and structures has attracted much attention. In this work, in the light remarkable performance against elastic oblique penetration, novel honeycomb panel with hexagonal prism spherical body was designed. splicing ceramic/fiber plate bonded PE plate. prepared, target test cond...

Rapid prototyping by means of stereolithography using different types of photopolymers has gained increasing interest because cellular structures can be built at a high resolution with sub-lm feature sizes. Structures made with digital light processing and microstereolithography and rapid prototyping based on two-photon absorption photopolymerization techniques are presented. Soluble photopolym...

Since melanocytes are the origin of melanoma and some skin disorders such as melasma, they are important cells from the perspective of medicinal chemistry. Therefore, a medication that can simultaneously overcome these diseases will be a successful potential therapeutic agent. Arbutin with phenolic structure is a powerful natural anti-tyrosinase agent. Hence, the phenolic structure of this drug...

Moving towards a bio-based and circular economy implies a major focus on the responsible and sustainable utilization of bio-resources. The emergence of nanotechnology has opened multiple possibilities, not only in the existing industrial sectors, but also for completely novel applications of nanoscale bio-materials, the commercial exploitation of which has only begun during the last few years. ...

Glucose uptake in the heart is mediated by specific glucose transporters (GLUTs) present on cardiomyocyte cell surface membranes. Metabolic stress and insulin both increase glucose transport by stimulating the translocation of glucose transporters from intracellular storage vesicles to the cell surface. Isolated perfused transgenic mouse hearts are commonly used to investigate the molecular reg...

Dental enamel is a bio-ceramic formed through a cascade of intra and extra-cellular events among which protein self-assembly is a critical step. Amelogenin selfassembly into nanospheres has been proposed as a key factor in controlling the oriented and elongated growth of enamel crystals. This manuscript is a short review of our recent in vitro study on the process of amelogenin selfassembly int...

than equivalent ceramic restorations for the treatment of both anterior and posterior teeth.1-3 Moreover, composite restorations allow for minimally invasive preparations or no preparation at all when modifying existing tooth anatomy or assuming the replacement of decayed tissues; this constitutes an unparalleled advantage of “free-hand bonding” also due to its relative simplicity. This rationa...

We present a case of a 71-year-old woman with unexplained instability of her total hip arthroplasty 12 years after implantation due to loosening of the ceramic component of a sandwich ceramic in polyethylene liner. She experienced in total 2 dislocations in 6 months. These events occurred without fracture of the ceramic liner. Sandwich ceramic liners were introduced with the idea of combining t...

An 18-year-old male presented severe hypodontia due to hypohidrotic ectodermal dysplasia was treated with Le Fort I maxillary osteotomy with simultaneous sinus floor augmentation using the mixture of cortical autogenous bone graft harvested from iliac crest and organic Bio-Oss to position the maxilla in a right occlusal plane with respect to the mandible, and to construct adequate bone volume a...