نتایج جستجو برای: low density polyethyleneclay nanocomposite

تعداد نتایج: 1524237  

2015
Maryam Seyedmajidi Seyedmahmood Rabiee Sina Haghanifar Seyedkamal Seyedmajidi Seyed Gholam ali Jorsaraei Homayoun Alaghehmand Naghmeh Jamaatlu Ali Bijani

Background. Bone defects following tumor resection and osteolysis due to bone lesions, periodontal tissue disorders, and bone reconstruction are challenges that surgeons face. Gass-ceramic-chitosan nanocomposite contains chitosan, a derivative of crustaceans' exoskeleton. Methods. Thirty-two 6-8-week-old male Wistar rats were chosen. One hole on each right and left tibia was made. The right tib...

Azimzadeh, Mostafa , Bagheri, Sahar , Dehghani Tafti, Arefeh , Jafari Nodoushan, Reza ,

Introduction: In recent years tend to use of natural fibers has increased in making sound absorbers. Fiber-based natural materials have low density, low production costs, and are biodegradable. Material and Methods: In this study, the effect of nanoclay and the behavior of the nanocomposite specimens containing tea waste, polypropylene, and nanoclay in the sound absorption coefficient are inve...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1394

مقدمه:بیماری پریودنتال یک عفونت مزمن لثه است که در بافت های احاطه کننده دندان ایجاد و باعث از دست رفتن دندان می شود. بعلاوه این بیماری می تواند سبب تغییر در فیزیولوژی سیستمیک شود .فردی با التهاب مزمن، مستعد پیشرفت وسیع تخریب بافت و کاهش ظرفیت ترمیم بافتی می باشد. مطالعات مختلف ارتباط بین پریودنتیت ، هایپرلیپیدمی c-reactive protein, و fasting blood sugarرا نشان داده است. این مطالعه با هدف تأثیر ...

2012
Dimitris Lamprou Peter Zhdan Fatima Labeed Constantina Lekakou

This study involves the preparation, microstructural, physical, mechanical and biological characterization of novel gelatine and gelatine/elastin gels for their use in the tissue engineering of vascular grafts. Gelatine and gelatin/elastin nanocomposite gels were prepared via a sol-gel process, using soluble gelatine. Gelatine was subsequently crosslinked by leaving the gels in 1% glutaraldehyd...

Journal: :Nanoscale 2014
Gill Sang Han Sangwook Lee Jun Hong Noh Hyun Suk Chung Jong Hoon Park Bhabani Sankar Swain Jeong-Hyeok Im Nam-Gyu Park Hyun Suk Jung

TiO2 nanoparticle (NP)/ITO nanowire (NW) nanocomposites for use as photoelectrode materials were fabricated to improve the charge collection efficiency in solid state dye sensitized solar cells (ss-DSSCs). The average current density for ss-DSSCs containing TiO2 NP/ITO NW arrays was 7.2 mA cm(-2) that was 98% higher than that for the conventional TiO2 NP ss-DSSCs. The intensity modulated photoc...

2008
G. Li

In this paper, a multilevel component mode synthesis (MCMS) approach is presented for the calculation of the phonon density of states (PDOS) of nanocomposite structures. In this approach, the nanocomposite structures are described by hierarchical levels of substructures. The phonon frequencies and modes are first computed for the bottom level substructures by using the theory of lattice dynamic...

Journal: :Physical chemistry chemical physics : PCCP 2014
Wei Chen Lujiang Huang Jun Hu Tengfei Li Feifei Jia Yu-Fei Song

Carbon nanotubes (CNTs) possess excellent structural and electronic properties and have been widely investigated as anode materials. Polyoxometalates (POMs) exhibit superior physical properties such as electronic versatility, redox characteristics and unique molecular structures. In this paper, we report the covalent modification of carbon nanotubes (CNTs) with organosilica-containing polyoxome...

2015
Rusi S. R. Majid

This paper presents the preparation of in situ electrodeposited rGO/MnO2 nanocomposite as a binder-free electrode for supercapacitor application. The work describes and evaluates the performance of prepared electrode via green and facile electrodeposition technique of in situ rGO/MnO2-glucose carbon nanocomposites. The carbon content in the composite electrode increased after GO and D (+) gluco...

2017
Arun Kumar Solarajan Vignesh Murugadoss Subramania Angaiah

Different weight percentages of ZrO2 (0, 3, 5, 7 and 10 wt%) incorporated electrospun PVDF-HFP nanocomposite polymer membranes (esCPMs) were prepared by electrospinning technique. They were activated by soaking in 1 M LiPF6 containing 1:1 volume ratio of EC : DMC (ethylene carbonate:dimethyl carbonate) to get electrospun nanocomposite polymer membrane electrolytes (esCPMEs). The influence of Zr...

2014
Othman Y Alothman H Fouad S M Al-Zahrani Ayman Eshra Mohammed Fayez Al Rez S G Ansari

BACKGROUND High Density Polyethylene (HDPE) is one of the most often used polymers in biomedical applications. The limitations of HDPE are its visco-elastic behavior, low modulus and poor bioactivity. To improve HDPE properties, HA nanoparticles can be added to form polymer composite that can be used as alternatives to metals for bone substitutes and orthopaedic implant applications. METHOD I...

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