HOME >> BIOLOGY >> NEWS
Want to petrify wood without waiting a few million years? Try this

RICHLAND, Wash.--California has Silicon Valley. Could a Silicon Forest in Washington be next? A team of materials scientists from Pacific Northwest National Laboratory is on it.

Yongsoon Shin and colleagues at the Department of Energy lab have converted wood to mineral, achieving in days what it takes nature millions of years to do in such places as the Gingko Petrified Forest, an hour up the Columbia River. There, trees likely felled in a cataclysmic eruption and, buried without oxygen beneath lava, leached out their woody compounds and sponged up the soil's minerals over the eons.

Shin's petrified wood journey began in a less dramatic fashion, a few minutes away at Lowe's, Shin's group reports in the current issue of the journal Advanced Materials, in the do-it-yourselfer chain's lumberyard,. There they picked up their raw material: pine and poplar boards. Back at PNNL, they gave a 1 centimeter cube of wood a two-day acid bath, soaked it in a silica solution for two more (for best results, repeat this step up to three times), air-dried it, popped it into an argon-filled furnace gradually cranked up to 1,400 degrees centigrade to cook for two hours, then let cool in argon to room temperature.

Presto. Instant petrified wood, the silica taking up permanent residence with the carbon left in the cellulose to form a new silicon carbide, or SiC, ceramic. The material "replicates exactly the wood architecture," according to Shin.

Although SiC chips are unlikely to replace computer chips, materials scientists are interested in the novel properties of ceramics built on templates of wood and, in Shin's lab, other natural materials such as pollen and rice hulls. The intricate network of microchannels and pores in plant matter provide enormous surfaces--in wood, 1 gram of material flattened out would cover a football field--that may prove useful in industrial chemical separations or filtering pollutants from gaseous effluents.

The acid-
'"/>

Contact: Bill Cannon
cannon@pnl.gov
509-375-3732
DOE/Pacific Northwest National Laboratory
24-Jan-2005


Page: 1 2

Related biology news :

1. Coming soon -- Protein synthesis without amino acids?
2. Research without borders: Head of Santa Fe Institute to address NSF
3. 2-protein team would be lost without each other
4. Preventing cancer without killing cells
5. Moral judgment fails without feelings
6. Study: Chest compressions without mouth-to-mouth better for out-of-hospital cardiac arrest
7. Bacterium could treat PCBs without the need for dredging
8. New therapeutic target for Alzheimers could lead to drugs without side effects
9. Genetic hearing loss may be reversible without gene therapy
10. Cypress replanting unsuccessful without dual cultivation with lavender or mycorrhizal fungi
11. Preventing graft-versus-host disease disease after bone marrow transplant -- without toxicity

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Want petrify wood without waiting few million years Try this

(Date:4/17/2014)... hundred births, Down syndrome - or trisomy 21 - ... It results from a chromosomal abnormality where cells of ... (1% of the human genome). A study conducted by ... Genetic Medicine and Development at the University of Geneva ... shed light on how the extra chromosome 21 upsets ...
(Date:4/17/2014)... Rajendra Singh Thursday as a "Champion of Change" ... deployment in the residential, commercial and industrial sectors. ... Electrical and Computer Engineering and director of Clemson,s ... hero leading the charge across the country to ... and driving policy changes at the local level ...
(Date:4/17/2014)... channels are implicated in many serious conditions such as ... potential target for drug therapies. Unfortunately, there is still ... Cambridge research provides fresh and unexpected insight into the ... components - β-subunit molecules - which are responsible for ... published in the most recent edition of the ...
Breaking Biology News(10 mins):Trisomy 21: How an extra little chromosome throws the entire genome off balance 2Trisomy 21: How an extra little chromosome throws the entire genome off balance 3White House honors Clemson professor as 'Champion of Change' for solar deployment 2Structure of sodium channels different than previously believed 2
(Date:1/15/2014)... Toronto, Canada (PRWEB) January 15, 2014 ... perspectives on nonclinical and clinical safety assessment in biosimilars. ... a path for biosimilar drug development, however the complex ... regards to quality, safety and efficacy extremely challenging. Based ...
(Date:1/15/2014)... 2014 Two champions of science, technology, ... of an annual competition for middle and high school ... innovative STEM study. The competition presents students with real-world ... Engineering Aptitude, Mathematics, and Sciences is a program ...
(Date:1/15/2014)... 2013 was a banner year of continued ... saw continued independent research led by the team at ... $1 million grant from the Susanne Marcus Collins Foundation, ... peer reviewed journal, Amy Grant highlighted Brainwave Optimization® in ...
(Date:1/15/2014)... TaiGen Biotechnology Company, Limited ("TaiGen") today announced that they ... Russian pharmaceutical company, to develop and commercialize nemonoxacin (Taigexyn ... , Turkey and other members ... antibiotic for the treatment of bacterial infections including those ...
Breaking Biology Technology:Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2Technology 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 5Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4
Cached News: