Navigation Links
NIST issues first reference material for tissue engineering
Date:5/8/2009

The National Institute of Standards and Technology (NIST) last week issued its first reference materials to support the new and growing field of tissue engineering for medicine. The new NIST materials are samples of a typical tissue scaffold material that have been measured and documented by NIST for three different degrees of porosity.

Three-dimensional tissue scaffolds, under development for some years, are biodegradable materials that are meant to be implanted in the body to provide a structurally sound framework for the patients cells to implant and grow, in time repairing damaged tissue. The scaffolds are meant to be absorbed gradually by the body and replaced by normal tissue. Today they are used most commonly to help repair damaged bone, but other applications being studied.

In addition to biocompatibility and biodegradability, successful 3-D tissue scaffolds have a number of physical requirements. Porosity or pore size is one key factor. The pores in the scaffold must be large enough to permit cells to infuse the structure and receive nutrients, but healthy cell growth also depends on the cells immediate surroundings. If the pores are too large or spaced too far apart, cells will be unable to build the proper connections.

The three new NIST reference materials are disks approximately 20 millimeters across and 5 millimeters high formed of crisscrossed layers polyester struts approximately 200 micrometers in diameter. Varying the spacing of the struts in each layer resulted in three different average porosities for the disks: 47 percent (average strut spacing of 200 micrometers), 60 percent (300 micrometers), and 69 percent (450 micrometers). These span the common range of pore sizes typically required for tissue engineering applications.

The biodegradable polymer, polycaprolactone, originally was used for sutures, and was chosen for being relatively strong and stable when not exposed to water or sunlight. The materia
'/>"/>

Contact: Michael Baum
michael.baum@nist.gov
301-975-2763
National Institute of Standards and Technology (NIST)
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Global alliance of leading technological universities to address global societal issues
2. 3 Woods Hole scientific institutions forge alliance to address societal issues
3. Latest research on childrens issues featured at SRCD meeting
4. A new way to assemble cells into 3-D microtissues
5. High Performance, Low-Cost VoIP Chips Address Critical Performance Issues Such as Echo, Latency, and Packet Loss
6. SectorWatch.biz Issues Commentary for Investors of Homeland Defense Companies FOUR, MAGS, NSSC, PNTR, BCO, and CKP
7. Substantial work ahead for water issues, say scientists at ACS Final Report briefing
8. Stanford launches $100 million initiative to tackle energy issues
9. Issues at intersection of climate change and health impact global well-being
10. UD researchers show that plants can accumulate nanoparticles in tissues
11. Human genes sing different tunes in different tissues
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
NIST issues first reference material for tissue engineering
(Date:7/30/2014)... The use of iodine-125 (125I) in cancer treatment ... dorsal root ganglia are critical for neural transmission ... Tengda Zhang and colleagues from Institute of Radiation ... that 125I could be implanted into rat dorsal ... pain. 125I seeds with different radioactivity (0, 14.8, ...
(Date:7/30/2014)... analysis of the roughly 3,000 pieces is still in ... the results will be of major significance. "Amazingly often, ... species in Fushun amber that we found in Baltic ... , The Baltic amber comes from the Baltic Sea ... rich in finds are, e.g., the coastal regions of ...
(Date:7/30/2014)... journal Scientific Reports , published by Nature ... that while global temperature is indeed increasing, so too ... each year,s average hottest and coldest temperatures will likely ... a wider range of potential high and low temperate ... even as overall temperatures rise, we may still continue ...
Breaking Biology News(10 mins):Chinese mosquitos on the Baltic Sea 2Big data confirms climate extremes are here to stay 2
... LONDON , April 27, 2010 Dominio Amigo S.A.S ... the .CO domain name launch. , , ... Julio Camacho , CEO, Dominio Amigo S.A.S , ... have consistently performed,at both ccTLD and gTLD launches, securing the very best Internet ...
... LONDON , April 27, 2010 ... backdrop. In,a video interview with online financial broadcaster http://www.cantos.com ,Chief Executive ... which,demonstrates the resilience of our business and the success of our enhanced,focus ... ...
... , April 27 The PMI Group, Inc. (NYSE: ... sell in concurrent underwritten public offerings an aggregate of 77,765,000 shares ... $6.15 per share and $261 million aggregate ... connection with the offerings, PMI has granted the underwriters 30-day options ...
Cached Biology News:Dominio Amigo Announce Domainmonster as .CO Technical Partner 2Dominio Amigo Announce Domainmonster as .CO Technical Partner 3Imperial Tobacco - 2010 Half Year Results Interviews 2The PMI Group, Inc. Announces Pricing of Common Stock and Convertible Senior Notes Offerings 2The PMI Group, Inc. Announces Pricing of Common Stock and Convertible Senior Notes Offerings 3The PMI Group, Inc. Announces Pricing of Common Stock and Convertible Senior Notes Offerings 4
(Date:7/30/2014)... San Diego, CA (PRWEB) July 30, 2014 ... second contract from the U.S. Environmental Protection Agency ... company’s expertise in developmental toxicity models, including tests ... on neuron formation and the formation of connections ... function. Inhibition of neurodifferentiation and synapse formation by ...
(Date:7/29/2014)... Dallas, Texas (PRWEB) July 30, 2014 ... in Private Equity and Venture Capital Funding” report ... factors shaping the private equity and venture capital ... that these are expected to have significant impact ... the US and globally. Furthermore, the report identifies ...
(Date:7/29/2014)... Can a particle be separated from its properties? On ... published the results of the first Cheshire Cat experiment, ... Chapman University in Orange, CA, and Vienna University of ... without a grin," thought Alice in Wonderland, "but a ... I ever saw in my life!" Alice,s surprise stems ...
(Date:7/29/2014)... generation biofuels are a viable solution to the dilemma of ... is very cheap, this is affecting the biofuels market in ... could be in comparison to natural gas. This, in ... for renewable energy developers to get the economics to work ... certain companies have shifted their focused within renewable energy. ...
Breaking Biology Technology:U.S. Environmental Protection Agency (EPA) Awards Vala Sciences a Second ToxCast Contract 2U.S. Environmental Protection Agency (EPA) Awards Vala Sciences a Second ToxCast Contract 3Strategic Trends of Biotech Investment Industry (Private Equity and Venture Capital Funding) in New Report Available at MarketOptimizer.org 2Strategic Trends of Biotech Investment Industry (Private Equity and Venture Capital Funding) in New Report Available at MarketOptimizer.org 3Strategic Trends of Biotech Investment Industry (Private Equity and Venture Capital Funding) in New Report Available at MarketOptimizer.org 4The quantum Cheshire cat: Scientists separate a particle from its properties 2The quantum Cheshire cat: Scientists separate a particle from its properties 3The quantum Cheshire cat: Scientists separate a particle from its properties 4Renewable Waste Intelligence: Could Renewable Chemicals Be the Future for the Renewable Energy Industry? 2
... Management to discuss positive corporate developments and ... call, SANTA CLARA, Calif., Oct. 14 ... cardiac diagnostic and services company, today,announced that ... discuss,recent corporate developments and provide an update ...
... release date, NATICK, Mass., Oct. 14 ... the following comments reinforcing,the strength of its balance ... and the Company,s stock price,volatility have had no ... performance of the Company. Strong cash flow generation,during ...
... China, Oct. 14 /Xinhua-PRNewswire/ -- WuXi PharmaTech,(Cayman) ... pharmaceutical, biotechnology and,medical device research and development ... United States, today announced preliminary selected,unaudited financial ... 30, 2008,and updated its guidance for the ...
Cached Biology Technology:NewCardio Management to Host Conference Call on October 21 2NewCardio Management to Host Conference Call on October 21 3Boston Scientific Provides Comments Reinforcing Strength of Its Balance Sheet 2Boston Scientific Provides Comments Reinforcing Strength of Its Balance Sheet 3WuXi PharmaTech Announces Preliminary Third Quarter 2008 Results and Updates 2008 Guidance 2WuXi PharmaTech Announces Preliminary Third Quarter 2008 Results and Updates 2008 Guidance 3WuXi PharmaTech Announces Preliminary Third Quarter 2008 Results and Updates 2008 Guidance 4WuXi PharmaTech Announces Preliminary Third Quarter 2008 Results and Updates 2008 Guidance 5WuXi PharmaTech Announces Preliminary Third Quarter 2008 Results and Updates 2008 Guidance 6WuXi PharmaTech Announces Preliminary Third Quarter 2008 Results and Updates 2008 Guidance 7WuXi PharmaTech Announces Preliminary Third Quarter 2008 Results and Updates 2008 Guidance 8
...
... Fully adjustable mixing angle, Variable speed, Digital ... a number of different sized tubes, Spillage ... cultures, keeping biological samples in suspension and ... be used in incubators up to 60C ...
... The DNA Engine Opticon 2 real-time PCR ... LEDs for fluorescence excitation (470-505 nm) and ... nm, 540-700 nm). The Opticon 2 system ... cycler, which includes a thermal gradient feature. ...
... Multicolor capability allows detection of SYBR ... channel, and a range of fluorophores in ... VIC, and TAMRA for a multitude ... discrimination. DNA Engine thermal cycler offers precision ...
Biology Products: