Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Iranian Scientists Improve Properties of Nano Hydroxyapatite Coatings in Implants

Abstract:
Iranian materials engineering experts studied the mechanism to increase the stability of hydroxyapatite nanoparticles' suspension by using triethanolamine (TEA) additive, its effect on the electrophoretic deposition process and the properties of the obtained coatings.

Iranian Scientists Improve Properties of Nano Hydroxyapatite Coatings in Implants

Tehran, Iran | Posted on December 30th, 2013

Results of the research can be used in the cost-effective production of nanostructured hydroxyapatite (HA) coatings on metallic implants. Among other applications of the research, mention can be made of the creation of colloid suspensions of HA nanoparticles with high stability in processes, including slurry casting or tape and pressure casting.

The research consisted of the following steps; HA nanopowder was firstly synthesized through wet chemistry method and the suspensions of the nanoparticles in isopropanol were prepared at various concentrations of TEA. Zeta potential of the particles were measured in the prepared suspensions and the in-situ kinetics of deposition formation in the suspensions were measured by using a scale with accuracy of 0.1 mg at 60 V. Wet density of the produced coatings were measured through Archimedes method. The microstructure of the coatings was investigated by using optic and electron microscopes. Finally, the resistance against corrosion in the produced coatings was calculated through electrochemical polarization method.

The use of nanoparticles in electrophoretic process creates more homogenous coatings that agglomerate at lower sintering temperature. The suspension made of nanoparticles has higher stability but lower rate of sedimentation in comparison with micrometric particles, which is a result of the lower weight of nanoparticles compared to that of microparticles.

Results of the research have been published in Ceramics International, vol. 39, February 2013, pp. 7007-7013.

####

For more information, please click here

Copyright © Fars News Agency

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Ultracold atom waves may shed light on rogue ocean killers: Rice quantum experiments probe underlying physics of rogue ocean waves April 27th, 2017

Looking for the quantum frontier: Beyond classical computing without fault-tolerance? April 27th, 2017

Metal nanoparticles induced visible-light photocatalysis: Mechanisms, applications, ways of promoting catalytic activity and outlook April 27th, 2017

Arrowhead Pharmaceuticals to Webcast Fiscal 2017 Second Quarter Results April 27th, 2017

Affordable STM32 Cloud-Connectable Kit from STMicroelectronics Puts More Features On-Board for Fast and Flexible IoT-Device Development April 26th, 2017

Chemistry

Metal nanoparticles induced visible-light photocatalysis: Mechanisms, applications, ways of promoting catalytic activity and outlook April 27th, 2017

Discoveries

Ultracold atom waves may shed light on rogue ocean killers: Rice quantum experiments probe underlying physics of rogue ocean waves April 27th, 2017

Looking for the quantum frontier: Beyond classical computing without fault-tolerance? April 27th, 2017

Metal nanoparticles induced visible-light photocatalysis: Mechanisms, applications, ways of promoting catalytic activity and outlook April 27th, 2017

Geoffrey Beach: Drawn to explore magnetism: Materials researcher is working on the magnetic memory of the future April 25th, 2017

Announcements

Ultracold atom waves may shed light on rogue ocean killers: Rice quantum experiments probe underlying physics of rogue ocean waves April 27th, 2017

Looking for the quantum frontier: Beyond classical computing without fault-tolerance? April 27th, 2017

Metal nanoparticles induced visible-light photocatalysis: Mechanisms, applications, ways of promoting catalytic activity and outlook April 27th, 2017

Arrowhead Pharmaceuticals to Webcast Fiscal 2017 Second Quarter Results April 27th, 2017

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Ultracold atom waves may shed light on rogue ocean killers: Rice quantum experiments probe underlying physics of rogue ocean waves April 27th, 2017

Looking for the quantum frontier: Beyond classical computing without fault-tolerance? April 27th, 2017

Metal nanoparticles induced visible-light photocatalysis: Mechanisms, applications, ways of promoting catalytic activity and outlook April 27th, 2017

Video captures bubble-blowing battery in action: Researchers propose how bubbles form, could lead to smaller lithium-air batteries April 26th, 2017

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project