this paper focused on a novel method of electroless plating ruthenium (ru) on solid or porous substrates like porous stainless steel (pss) discs or ceramic tubes. a novel complexing plating bath of ru was developed. it is proven that ru can be deposited directly on these substrates by the bath at a temperature of 328 k and strong alkaline environment. tga, sem, edx and xrd confirmed the success...

Journal of Medical Sciences 2011;14(2):68-70 expression for CD99 (MIC2), with characteristic membranous pattern and an IMPRESSION drawn was Conformation of diagnosis of EWINGS SARCOMA. Bone Scan was also advised which revealed Reduced uptake over the body of left mandible without rim of enhanced uptake. No evidence of distal bone involvement. A surgical procedure was performed to resect the mal...

Since dental implants are used in contact with many different tissues, it is necessary to have optimum surface compatibility with the host bone tissues and soft tissues. Furthermore, dental implant surfaces exposed to the oral cavity must remain plaque-free. Such materials can be created under well-controlled conditions by modifying the surfaces of metals that contact those tissues. “Tissue-com...

The improvement of titanium diboride (TiB2) coatings over the molybdenum substrate was investigated by comparing the electrochemical techniques of continuous current plating (CCP) and periodically interrupted current (PIC). The solvent used was a eutectic Flinak mixture (LiF–NaF– KF, 46.5:11.5:42molar ratio) with solutes K2TiF6 andKBF4 with the electrochemically-active components in themolar ra...

The anterior cervical plate fixation systems have been widely used in treatment of complex spinal disorders such as traumatic lesion, disc hernination, tumor, spondylosis, arthritides, and others. Combined with bone graft or other fusion techniques the satisfactory outcomes were higher than 88% (Clements 1990, Naito 1993,Bose 1998, Schneeberger 1999). Among the screw plate fixation systems, Cas...

Titanium and its alloys with various porous structures are one of the most important metals used in orthopaedic implants due to favourable properties as replacement for hard tissues. However, surface modification is critical to improve the osteointegration of titanium and its alloys. In this study, a bioactive magnesium coating was successfully fabricated on porous Ti6Al4V by means of arc ion p...

INTRODUCTION Nonunion following surgical stabilization of humeral shaft fractures, although infrequent, remains a challenge as limited surgical options are available. The difficulties in re-fixation are due to osteolysis produced by the loose implant components and disuse osteopenia of the entire bone segment. We share our experience in the management of a long standing diaphyseal nonunion of h...

Purpose. The object of research in this work was the creation a bimetallic material with increased mechanical and operational properties by rolling asymmetric packages. According to preliminary results structure research, optimal compositions base cladding layer workpiece smallest difference thermal expansion coefficients were selected. With help packages – steel 14Х17Н13КМБх + layer-steel 03Х1...

Langerhans cell histocytosis (LCH) in spine is a benign disorder that rare adults and mainly affects children. We report the case of 16 year-male presented to us with severe pain nape region upper limb radiculopathy along limbs weakness for 4 months. He had history fall injury 6month ago. Radiological investigation revealed have solitary osteolytic lesion pathological fracture at C6 vertebral b...