Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > News > Nanostructure will become design variable for materials engineers

June 25th, 2007

Nanostructure will become design variable for materials engineers

Abstract:
Bone is one of the most fascinating materials that has evolved in nature. There are 206 bones in your body - did you know that a newborn has 350 bones but they fuse together as you grow? - more than half of them in your hands and feet. These bones not only protect your organs, support your body against gravity's pull and allow you to move but they also are living tissues that produce blood cells and store important minerals. Not only important for humans, bones are the essential part of the endoskeleton of all vertebrates. Bone is a composite material of the mineral calcium hydroxyapatite and tropocollagen molecules (the fragile and soluble form of collagen when first synthesized by fibroblasts). It forms an extremely tough, yet lightweight material and its properties and behavior are of great interest to scientists and materials engineers. For instance, very little is known about the fracture behavior of bone and all such studies have been conducted at scales much larger than the nanoscale that explicitly considers individual tropocollagen molecules and mineral particles. New research at MIT has discovered a previously unknown toughening mechanism of bone that operates at the nanoscale - the level of individual collagen molecules and nano-platelets of hydroxyapatite. This breakthrough work lays the foundation for new materials design that includes the nanostructure as a specific 'design variable' and may help engineers to design materials from the bottom up by including hierarchies as a design parameter.

Source:
nanowerk.com

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

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

Nanoscale worms provide new route to nano-necklace structures March 29th, 2015

Solving molybdenum disulfide's 'thin' problem: Research team increases material's light emission by twelve times March 29th, 2015

A first glimpse inside a macroscopic quantum state March 28th, 2015

Novel nanoparticle therapy promotes wound healing March 27th, 2015

Nanobiotechnology

Designer's toolkit for dynamic DNA nanomachines: Arm-waving nanorobot signals new flexibility in DNA origami March 27th, 2015

Dolomite’s microfluidics technology ideal for B cell encapsulation March 24th, 2015

Tiny bio-robot is a germ suited-up with graphene quantum dots March 24th, 2015

TGAC's take on the first portable DNA sequencing 'laboratory': First remote laboratory allows researchers to conduct real-time anaylsis March 19th, 2015

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







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE