نتایج جستجو برای: novel bio ceramic

تعداد نتایج: 869083  

Journal: :Nano letters 2007
X D Han Y F Zhang K Zheng X N Zhang Z Zhang Y J Hao X Y Guo J Yuan Z L Wang

Large strain plasticity is phenomenologically defined as the ability of a material to exhibit an exceptionally large deformation rate during mechanical deformation. It is a property that is well established for metals and alloys but is rarely observed for ceramic materials especially at low temperature ( approximately 300 K). With the reduction in dimensionality, however, unusual mechanical pro...

Journal: :Orthopedics 2013
Om Prakash Sharma Jasjit Lochab Yaron Berkovich Oleg A Safir Allan E Gross

This article describes a case of severe metallosis in a 67-year-old woman who initially underwent primary total hip arthroplasty with a ceramic-on-ceramic articular bearing. This was subsequently revised to a metal-on-polyethylene articulation due to ceramic liner fracture. She presented with severe hip pain and a pelvic mass. Infective workup was negative. Perforation of the cobalt-chrome femo...

1998
Ji-Cheng Lin Kuo-Ning Chiang Hsin Chu

1 Graduate Assistant 2 Associate Professor, Corresponding author ABSTRACT This research describes a novel ceramic thin-small-outline package (C-TSOP) to meet the thermal performance and long-term reliability considerations of today’s low-pin-counts and high-performance electronic devices, especially for memory devices. To improve the disadvantages of molding compound and to simplify fabrication...

2014
Jana Markhoff Enrico Mick Aurica Mitrovic Juliane Pasold Katharina Wegner Rainer Bader

Ceramic materials show excellent esthetic behavior, along with an absence of hypersensitivity, making them a possible alternative implant material in dental surgery. However, their surface properties enable only limited osseointegration compared to titanium implants. Within this study, a novel surface coating technique for enhanced osseointegration was investigated biologically and mechanically...

2017
Zheng Chen

A novel actuating material, which is lightweight, soft, and capable of generating large flapping motion under electrical stimuli, is highly desirable to build energy-efficient and maneuverable bio-inspired underwater robots. Ionic polymer-metal composites are important category of electroactive polymers, since they can generate large bending motions under low actuation voltages. IPMCs are ideal...

ژورنال: علوم آب و خاک 2016
ستوده‌فر, علیرضا, مختاری, احسان, میرمحمدصادقی, مسعود,

Improvement of soils is among the major concerns in civil engineering, therefore a variety of approaches have been employed for different soil types. The annual budget of implementing the projects of this kind in countries clearly implies the importance of the subject. The loose granular soils and sediments have always imposed challenges due to their low strength and bearing capacity. Bio-media...

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...

2011
Amir Reza Rokn Mohammad Amin Khodadoostan Amir Ali Reza Rasouli Ghahroudi Puria Motahhary Mohammad Javad Kharrazi Fard Hugo De Bruyn Rose Afzalifar Ehsan Soolar Ahmad Soolari

BACKGROUND Although autogenous bone grafts are considered the gold standard for bone regeneration, they have certain limitations, including patient morbidity at the harvest site. Synthetic bone substitutes have been developed to overcome some of these limitations. The present study aimed to compare the osteogenic properties of Straumann Bone Ceramic (SBC), which is a biphasic calcium phosphate,...

Journal: :Journal of biomedical materials research. Part B, Applied biomaterials 2007
Claire Brockett Sophie Williams Zhongmin Jin Graham Isaac John Fisher

Metal-on-ultra-high molecular weight polyethylene (UHMWPE) total hip replacements have been the most popular and clinically successful implants to date. However, it is well documented that the wear debris from these prostheses contributes to osteolysis and ultimate failure of the prosthesis, hence alternative materials have been sought. A range of 28 mm diameter bearings were investigated using...

1997
Zhiqi Shen Robert Gay Chunyan Miao Tin Wee Tan Chong Sean Kuay Hui Mien Lee

Recently there is a great demand for extending high throughput life science research to biomanufacturing. However, there is a gap from life science research to bio-manufacturing. Most of existing Bio-workflow tools/systems only provide an isolated solution to help bioscientist to orchestrate bio-R&D operations such as bio-database query, bio-computation and analysis etc for specific small bio-p...

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