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:8/29/2014)... of the Tibetan plateau -- the largest topographic anomaly ... both its profound effect on climate and its reflection ... GSA Bulletin , Katharine Huntington and colleagues employ a ... modern and fossil snail shells to investigate the uplift ... , Views range widely on the timing of surface ...
(Date:8/28/2014)... of bacterial culprits that may drive inflammatory bowel diseases ... patients, own intestinal immune responses as a guide. , ... Cell . , Trillions of bacteria exist within ... in the development and progression of IBD. Yet it,s ... affect a person,s susceptibility to IBD and its potential ...
(Date:8/28/2014)... E-cigarettes are healthier for your neighbors than traditional ... according to a new study from USC. , ... overall 10-fold decrease in exposure to harmful particles, ... of exposure to some harmful metals in second-hand ... , While tobacco smoke contains high levels of ...
Breaking Biology News(10 mins):Snails tell of the rise and fall of the Tibetan Plateau 2Snails tell of the rise and fall of the Tibetan Plateau 3Snails tell of the rise and fall of the Tibetan Plateau 4Snails tell of the rise and fall of the Tibetan Plateau 5Snails tell of the rise and fall of the Tibetan Plateau 6Snails tell of the rise and fall of the Tibetan Plateau 7Yale study identifies possible bacterial drivers of IBD 2Second-hand e-cig smoke compared to regular cigarette smoke 2
(Date:8/28/2014)... MA (PRWEB) August 28, 2014 “This kit ... test to screen from 0 to 150 ppb,” said Mark ... is a significant benefit to plant owners and USDA-GIPSA inspection ... and other commodities. Testing can take place in a matter ... only can the plant test the feed and grain before ...
(Date:8/28/2014)... 28, 2014  Next month, executives from clinical trial marketing ... events beginning with Patient-Centered Clinical Trials 2014 , to ... Boston , September 4-5. Patient recruitment experts Bonnie ... Fleishman will share insights on the benefits of employing ... tactics – from media to mobile apps – can be ...
(Date:8/28/2014)... Washington, USA (PRWEB) August 27, 2014 ... next month for SPIE Laser Damage 2014 ... optical materials for high-power lasers will run 14-17 September. ... society for optics and photonics . , The premier ... for understanding laser damage to optical materials will engage ...
(Date:8/28/2014)... NY (PRWEB) August 28, 2014 Whitehouse ... its long term partnership with PTI Inspection Systems ... clients with state of the art leak testing method ... the art instruments currently available. As part of this ... High Voltage Leak Detection Instrument developed and ...
Breaking Biology Technology:BBK Worldwide Leads Sessions at Key September Events 2Laser Damage to Draw Researchers, Engineers, Scientists to 46th Annual Conference 2Laser Damage to Draw Researchers, Engineers, Scientists to 46th Annual Conference 3Whitehouse Labs Renews Partnership with PTI Inspection Systems 2Whitehouse Labs Renews Partnership with PTI Inspection Systems 3
Cached News: