Navigation Links
Cracking a tooth
Date:1/12/2011

Teeth and bone are important and complex structures in humans and other animals, but little is actually known about their chemical structure at the atomic scale. What exactly gives them their renowned toughness, hardness and strength? How do organisms control the synthesis of these advanced functional composites?

Now, using a highly sophisticated atomic-scale imaging tool on a sea creature's tooth, two Northwestern University researchers have peeled away some of the mystery of organic/inorganic interfaces that are at the heart of tooth and bone structure. They are the first to produce a three-dimensional map of the location and identity of millions of individual atoms in the complex hybrid material that allows the animal to literally chew rock.

Demonstrating that atom-probe tomography (APT) can be used to interrogate such materials opens up the possibility of tracking fluoride in teeth and cancer and osteoporosis drugs in bone (at previously inaccessible length scales). The detailed knowledge of organic/inorganic interfaces also will help scientists rationally design useful new materials -- flexible electronics, polymers and nanocomposite materials, such as organic photovoltaics -- that combine the best properties of organic and inorganic materials.

The results will be published Jan. 13 by the journal Nature.

"The interface between the organic and inorganic materials plays a large role in controlling properties and structure," said Derk Joester, senior author of the paper. "How do organisms make and control these materials? We need to understand this architecture on the nanoscale level to design new materials intelligently. Otherwise we really have no idea what is going on."

Joester is the Morris E. Fine Junior Professor in Materials and Manufacturing at the McCormick School of Engineering and Applied Science. Lyle Gordon, a doctoral student in Joester's lab, is the other author of the paper.

The two
'/>"/>

Contact: Megan Fellman
fellman@northwestern.edu
847-491-3115
Northwestern University
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Cracking the Code: Exclusive Conference to Reveal Secrets of Chinese Pharmaceutical Industry
2. Cracking a tough nut for the semiconductor industry
3. Lastest graphene research could lead to improvements in bluetooth headsets and other devices
4. Diabetics: 3tailer Partners with MyGlucoHealth on World's 1st Blood Glucose Meter with Wireless Bluetooth for Diabetes
5. First high-resolution images of bone, tooth and shell formation
6. Bluegiga Provides Health Device Profile for its Bluetooth OEM Modules
7. Newly Available To Medical Device Manufacturers - Bluetooth Testing Equipment
8. Newly Available To Medical Device Manufacturers - Bluetooth Testing Equipment
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/15/2014)... 2014  Bill Jacobs Automotive, a group of car dealerships headquartered ... the Heartland Blood Center and offering free oil change coupons ... place Saturday, Jan. 18 at the Bill Jacobs Cadillac and ... (Photo: http://photos.prnewswire.com/prnh/20140115/MN46637 )  The Bill Jacobs ...
(Date:1/15/2014)... SAN JOSE, California , January 15, 2014 ... for cancer, today announced the appointment of Thomas C Reynolds ... over 20 years, development experience gained in the biotechnology industry, ... "I am delighted to welcome Tom at this transformative ...
(Date:1/15/2014)... Two champions of science, technology, engineering, ... an annual competition for middle and high school students ... STEM study. The competition presents students with real-world problems ... Aptitude, Mathematics, and Sciences is a program administered ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 AudioNotch is ... new therapy for the treatment of tinnitus. Patients listen ... frequency, and over a period of weeks to months, their ... Therapy in two forms: Notched Music and Notched White Noise. ...
Breaking Biology Technology:Join the Bill Jacobs Auto blood drive and receive a free oil change 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5
... ... Prize in Chemistry published papers on their award-winning work based on data collected at the ... ... Nobel Prize in Chemistry published papers on their award-winning work based on data collected at ...
... Inc. (Nasdaq: LXRX ) today announced that it ... conditions, 27,500,000 shares of its common stock pursuant to ... are being offered through the underwriters and 11,087,387 shares ... Lexicon also intends to grant the underwriters a ...
... ... President Obama , ... Argonne, Ill. (Vocus) October 7, 2009 -- The IBM Blue Gene series of energy-efficient ... President Barack Obama as a Medal of Technology and Innovation award-winner on October 7 ...
Cached Biology Technology:Argonne's Advanced Photon Source Lit the Way to Chemistry Nobel 2Argonne's Advanced Photon Source Lit the Way to Chemistry Nobel 3Lexicon Announces Proposed Offering of 27,500,000 Shares of Common Stock 2Lexicon Announces Proposed Offering of 27,500,000 Shares of Common Stock 3DOE Labs Take Pride in Award-Winning IBM Blue Gene Series 2DOE Labs Take Pride in Award-Winning IBM Blue Gene Series 3DOE Labs Take Pride in Award-Winning IBM Blue Gene Series 4
(Date:4/16/2014)... in museum collections two new species of yellow-shouldered bats have been ... The Field Museum of Natural History and described in the open ... to the genus Sturnira are part of a recent ... the third one still waiting to be officially announced. , Up ...
(Date:4/16/2014)... leaf looks like one seamless surface; however, up close, ... patchwork of cells in a variety of shapes and ... their own unique forms, Caltech biologist Elliot Meyerowitz, postdoctoral ... shape-controlling factors in pavement cells, which are puzzle-piece-shaped epithelial ...
(Date:4/16/2014)... , Professor Nicolas Doucet of the Centre INRSInstitut Armand-Frappier has ... Health (NIH) in the amount of nearly US$600,000. The 5-year ... tiny proteins called RNases and to explore their biomedical potential ... and asthma. , "Receiving a grant at this ...
Breaking Biology News(10 mins):Two new species of yellow-shouldered bats endemic to the Neotropics 2For cells, internal stress leads to unique shapes 2High-level NIH grant goes to professor Nicolas Doucet of INRS 2
... BEDFORD, Mass., July 16 Aware, Inc. (Nasdaq: ... scheduled a conference call to discuss the company,s operating results for the ... Time. CEO Michael Tzannes and CFO Rick Moberg will host the earnings ... being webcast by Thomson and can be accessed on the Investor Relations ...
... Blacksburg, Va. -- Ten articles describing how a universal ... study of the microbial world have been published in ... co-edited by Virginia Bioinformatics Institute professor Brett Tyler. The ... a shared vocabulary to describe disease-related and beneficial interactions ...
... early-life experience sticks with them into adulthood and may render ... aging, according to a new UBC study. A team ... genome-wide profiling in 103 healthy adults aged 25-40 years. ... high in early-life socioeconomic circumstances related to income, education and ...
Cached Biology News:Aware, Inc. Announces Q2'09 Earnings Conference Call 2Reviews of microbial gene language published in special issue of Trends in Microbiology 2Reviews of microbial gene language published in special issue of Trends in Microbiology 3Reviews of microbial gene language published in special issue of Trends in Microbiology 4Early-life experience linked to chronic diseases later in life: UBC research 2
Agarose II (Low Melt)...
...
... I can be used in intracellular staining ... cells and to serve as an antibody ... cell permeabilization is a reversible process, it ... the presence of saponin during intracellular staining. ...
... antibody raised against a partial ... Immunogen: PPP4C (NP_002711, 218 ... recombinant protein with GST tag. ... NM_002720 ...
Biology Products: