نتایج جستجو برای: آلیاژ ti 6242

تعداد نتایج: 38193  

2017
Morshed Khandaker Shahram Riahinezhad Wendy R. Williams Roman Wolf

The effect of depositing a collagen (CG)-poly-ε-caprolactone (PCL) nanofiber mesh (NFM) at the microgrooves of titanium (Ti) on the mechanical stability and osseointegration of the implant with bone was investigated using a rabbit model. Three groups of Ti samples were produced: control Ti samples where there were no microgrooves or CG-PCL NFM, groove Ti samples where microgrooves were machined...

Journal: :Biomaterials 2011
Sung Eun Kim Sang-Hun Song Young Pil Yun Byung-Joon Choi Il Keun Kwon Min Soo Bae Ho-Jin Moon Yong-Dae Kwon

The aim of this study was to investigate biologic function of bone morphorgenic protein-2 (rhBMP-2) immobilized on the heparin-grafted Ti surface. Ti surfaces were first modified by 3-aminopropyltriethoxysilane (ATPES), followed by grafting of heparin. BMP-2 was then immobilized on the heparin-grafted Ti surfaces. Pristine Ti and functionalized Ti surfaces were characterized by X-ray photoelect...

2015
Soyoung Yang Sujeong Lee Indu Bajpai Sukyoung Kim

BACKGROUND Ti and its alloys have been widely used as orthopedic and dental implants due to their outstanding mechanical properties and biocompatibility. However, long time is required to form bond between Ti implant and surrounding tissues. Therefore, these implants necessitate surface treatment such as mechanical/chemical treatment and coating of bioactive materials for improving the osseoint...

هیدروکسی آپاتیت به علت خواص زیست سازگاری و هدایت استخوانی بالا به عنوان پوشش بر روی آلیاژ تیتانیم استفاده میشود. اما استحکام چسبندگی ضعیف بین هیدروکسی آپاتیت و آلیاژ تیتانیم باعث کاهش  پایداری کاشتنیهایی استفاده شده در بدن به مدت طولانی میشود. در این پژوهش پودر کامپوزیتی هیدروکسی آپاتیت-تیتانیم حاوی 50 درصد وزنی تیتانیم به روش آسیابکاری تهیه و به عنوان ماده اولیه در پلاسما اسپری به منظور ایجاد ...

Journal: :Journal of hazardous materials 2009
Fang Jiang Zheng Zheng Zhaoyi Xu Shourong Zheng

SiO(2) pillared layered titanate (SiO(2)-H(2)Ti(4)O(9)) was prepared via intercalating organosilanes into the interlayers of the layered K(2)Ti(4)O(9) followed by calcination at 500 degrees C. The resulting materials were characterized using XRD, N(2) adsorption-desorption isotherms, UV-vis spectra, IR spectroscopy and Raman spectroscopy. The photocatalytic activity of SiO(2)-H(2)Ti(4)O(9) was ...

2014
Mi-Kyung Han Moon-Jin Hwang Dae-Hee Won Yang-Soo Kim Ho-Jun Song Yeong-Joon Park

In order to investigate the relationship between phase/microstructure and various properties of Ti-xAg alloys, a series of Ti-xAg alloys with Ag contents ranging from 5 to 20 wt% were prepared. The microstructures were characterized using X-ray diffractometry (XRD), optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). All of the Ti-xAg alloys s...

Journal: :Nephrology Dialysis Transplantation 2023

Abstract Background and Aims Chronic kidney disease (CKD) is a leading cause of morbidity mortality worldwide, with African descendants being at increased risk occurrence progression to end-stage renal (ESRD). However, the burden CKD ESRD in continent still largely conjectural access treatment restricted those countries. Africa contributes <10% total replacement therapy (RRT) patients ma...

2017
Tatsumi NOGUCHI Masayuki HATTORI Masao YOSHINARI

fluoride-containing solutien. Commercially pure titanium (CP-Ti) and six titanium-based alloys were used: Ti-O.15Pd, Ti6Al-4V, Ti-7Nb-6Al, Ti-55Ni, Ti-10Cu, and Ti-20Cr. Two test solutions were prepared fbr immersion of polished titanium and titanium alloys: one consisting of O,2% NaF + O,9% NaCl (pH 3.8 with lactic acid) and the other of O.1 mol/1 H202 + O.9% NaCl (pH 5.5). Following immersion...

2013
Hideki Suito Yuki Iwawaki Takaharu Goto Yoritoki Tomotake Tetsuo Ichikawa

OBJECTIVES Ti, which is biocompatible and resistant to corrosion, is widely used for dental implants, particularly in patients allergic to other materials. However, numerous studies have reported on Ti allergy and the in vitro corrosion of Ti. This study investigated the conditions that promote the elution of Ti ions from Ti implants. METHODS Specimens of commercially pure Ti, pure nickel, a ...

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