Navigation Links
Bones at the nanoscale

Scientists from Max Planck Institute (Germany) and the ESRF have just discovered the way deformation at the nanoscale takes place in a bone by studying it with the synchrotron X-rays. This study explains the enor-mous stability and deformability of bones. The hierarchical structure of bones makes them able to sustain large strains without breaking, de-spite being made of essentially rigid units at the molecular level. The re-sults are published this week in the PNAS online edition.

A bone is made up of two different elements: half of it is a stretchable fibrous protein called collagen and the other half a brittle mineral phase called apatite. These com-ponents make this biomineralized tissue highly strong and tough. at the same time, In order to understand how this construction is achieved and functions, scientists from the Max Planck Institute of Colloids and Interfaces in Potsdam (Germany) came to the ESRF. Using X-rays they were able to see for the first time the simultaneous re-arrangement of organic and inorganic components at a micro and nanoscale level under tensile stress.

The scientists realised that when strain/pressure is applied to a bone, this is ab-sorbed by soft layers at successively lower length scales, and less than a fifth of the strain is actually noticed in the mineral phase. The soft structures form a single rigid unit at the next level and so on, enabling the tissue to sustain large strains. This is why the brittle apatite remains shielded from excessive loads and does not break.

The results also showed that the mineral crystallites are nonetheless very strong, ca-pable of carrying more than 2 ?3 times the fracture load of bulk apatite. Their small size preserves them from large cracks. This is the first experimental evidence for this effect in biomaterials ?small particles resist failure better.

Scientists carried out experiments on ID2 beamline at the ESRF. They tracked the molecular and supramolecular
'"/>

Source:European Synchrotron Radiation Facility


Page: 1 2

Related biology news :

1. Bones from blood: Scientists aim to break new ground on fractures
2. Bones hold the key to blood renewal
3. Bones in motion: Brown scientists to create new 3-D X-ray system
4. Spelling out cancer on the nanoscale
5. Penn researcher shows that DNA gets kinky easily at the nanoscale
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Bones the nanoscale

(Date:7/29/2014)... bacteria and algae, propel themselves using whip-like appendages ... a millimetre long, function like tiny oars, helping ... cilia are found on the surfaces of many ... liquids over the cell. , Flagella and ... expel pathogens from our airways, they establish the ...
(Date:7/28/2014)... by the U.S. Food and Drug Administration (FDA) for ... bacterial pathogens inside human cells, including those that cause ... published in mBio , the online open-access journal ... way of identifying non-antibiotic drugs that could one day ... drugs on the list inhibit the growth of at ...
(Date:7/28/2014)... reached the South Pole in 1911, but new research ... human. , Using data from 16 ice cores collected ... the South Pole, a group led by Joe McConnell ... created the most accurate and precise reconstruction to date ... record, described in an article published today in the ...
Breaking Biology News(10 mins):Microscopic rowing -- without a cox 2Microscopic rowing -- without a cox 3New route to identify drugs that can fight bacterial infections 2Lead pollution beat explorers to South Pole, persists today 2Lead pollution beat explorers to South Pole, persists today 3
... ranging from the shellfish Swedish people eat at traditional ... their millions in both freshwater and saltwater. One of ... crustacean to have its genome sequenced. A researcher from ... The sequencing has been done in an international ...
... of cancer deaths resulted from metastasis, the spread of ... exploration of the possible mechanical factors that promote metastasis ... is expanding the scientific understanding of what makes malignant ... fibrous matrix that surrounds cancer cells. Karen ...
... SPRING HARBOR, N.Y. (March 22, 2011) - An ... to scientists and nonscientists alike. Its behavior involves processes ... those external to itenvironment and social surroundings. According to ... tapestry of biology: It is sparked when neurons fire ...
Cached Biology News:Surprising results in the first genome sequencing of a crustacean 2WSU proves extracellular matrix tugging creates come hither stimulus for cancer migration 2New book on animal behavior provides integrated view 2
(Date:7/29/2014)... SPRING, Md., July 29, 2014  United Therapeutics ... announced its financial results for the second ... continued growth shows that our medicines are ... pulmonary arterial hypertension (PAH)," said Martine Rothblatt, ... Officer. "The commercial launch this quarter of ...
(Date:7/29/2014)... The prestigious "Discovery or Exploration in History ... to Juliana Hillis and Kaylie O’Connell, students at Stoneham ... an Egg, Everything: America’s First IVF Baby". This project ... National History Day program during a week-long final competition ... Washington, D.C. , The growing popularity of the assisted ...
(Date:7/29/2014)... July 29, 2014 ... (LBS) zur Erfassung biologischer Daten in Verbindung ... und patentiert. Das LBS nimmt gleichzeitig mehrere ... des Patienten und sucht erhöhte biologische Aktivitäten ... Potenzial, die Entdeckung und Entwicklung neuer Medikamente ...
(Date:7/28/2014)... “2014 Deep Research Report ... a professional and in-depth research report on ... introduces Lubricant basic information, including Lubricant definition, ... industry overview. This research covers the international ... well as global industry analysis covering macroeconomic ...
Breaking Biology Technology:United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 2United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 3United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 4United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 5United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 6United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 7United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 8United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 9United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 10United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 11United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 12United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 13In Vitro Fertilization (IVF) was the Subject of This Year’s Winning Entry for the Prestigious Library of Congress “Discovery or Exploration in History Award” 2In Vitro Fertilization (IVF) was the Subject of This Year’s Winning Entry for the Prestigious Library of Congress “Discovery or Exploration in History Award” 3PlaqueTec sichert sich CE-Kennzeichnung für Liquid Biopsy System - bahnbrechende Innovation zur Erfassung neuer biologischer Informationen aus erkranktem Herzkranzgefäß 2PlaqueTec sichert sich CE-Kennzeichnung für Liquid Biopsy System - bahnbrechende Innovation zur Erfassung neuer biologischer Informationen aus erkranktem Herzkranzgefäß 3PlaqueTec sichert sich CE-Kennzeichnung für Liquid Biopsy System - bahnbrechende Innovation zur Erfassung neuer biologischer Informationen aus erkranktem Herzkranzgefäß 4Lubricant Market & Adhesion Promoter Industry (Globa, China) Analysis Now Available at DeepResearchReports.com 2Lubricant Market & Adhesion Promoter Industry (Globa, China) Analysis Now Available at DeepResearchReports.com 3Lubricant Market & Adhesion Promoter Industry (Globa, China) Analysis Now Available at DeepResearchReports.com 4
... Rice University,s award-winning undergraduate summer research program NanoJapan ... $4 million grant from the National Science Foundation ... from all U.S. universities, combines a traditional study-abroad ... internship in nanotechnology. The program was created in ...
... Sept. 21 Oxford Resource Partners, LP (NYSE: ... today announced their collaborative agreement to develop a pilot ... previously reclaimed from mining operations by Oxford. The goal ... economic viability of biomass production from dedicated energy crops ...
... JERUSALEM, Sept. 21 Chiasma, Inc., a privately ... CEO, will present an overview of the Company at the ... York, New York, on Wednesday, September 22, 2010 at 11:00 ... clinical trial of the investigational new drug Octreolin™, an oral ...
Cached Biology Technology:Rice University's award-winning NanoJapan program wins $4M grant 2Rice University's award-winning NanoJapan program wins $4M grant 3Oxford Resource Partners, LP and Mendel Biotechnology, Inc. Announce a Miscanthus Biomass Pilot Project in Ohio 2Oxford Resource Partners, LP and Mendel Biotechnology, Inc. Announce a Miscanthus Biomass Pilot Project in Ohio 3Oxford Resource Partners, LP and Mendel Biotechnology, Inc. Announce a Miscanthus Biomass Pilot Project in Ohio 4Chiasma to Present at the UBS Global Life Sciences Conference 2Chiasma to Present at the UBS Global Life Sciences Conference 3
... custom peptide synthesis with a wide variety of ... your research needs. Purity: IG(>50%), ... 2mg-1g Sequence Length: Up to ... N-acetylation, C-amidation, phosphorylation, D-amino acids, MAPs, KLH/BSA conjugation, ...
... liquid handling system from Molecular Devices provides ... one instrument. The system handles a variety ... washing96-, 384- and 1536-welland is the first ... has been optimized to dispense from four ...
A univariate (peak height or area) quantitative multi-component analysis package....
... dramatic breakthrough in accurate, small-volume bulk dispensing. Dispensing ... micro 1 has unique advantages not found in ... never needs re-calibration as do other 1mL dispensers. ... LCD Display , Graphical Row Selection , 96-,384- ...
Biology Products: