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:6/23/2015)... , June 23, 2015   MedNet ... that supports the entire spectrum of clinical research, ... ™ , the company,s intuitive, flexible ... awarded a Silver 2015 Stevie® Award by the ... Products & Services Website category.  The American Business ...
(Date:6/23/2015)... June 23, 2015   Valencell, a ... results of a recent study that illustrates its ... wrist during activity. In a study conducted at ... along with the Apple Watch against a chest ... rate during activity. The study demonstrated that Valencell,s ...
(Date:6/18/2015)... 18, 2015 This report analyzes the worldwide ... following Product Segments, which includes Immunoassay Analyzers and Reagents: ... Radio Immunoassay Systems, and Nephelometric Immunoassay Systems. The report ... Canada , Japan , ... Latin America , and Rest of ...
Breaking Biology News(10 mins):MedNet Solutions' iMedNet eClinical Wins Silver Stevie Award 2Valencell Delivers Breakthrough Heart Rate Accuracy on the Wrist 2Valencell Delivers Breakthrough Heart Rate Accuracy on the Wrist 3Global Immunoassay Systems Market 2Global Immunoassay Systems Market 3Global Immunoassay Systems Market 4Global Immunoassay Systems Market 5Global Immunoassay Systems Market 6Global Immunoassay Systems Market 7Global Immunoassay Systems Market 8Global Immunoassay Systems Market 9Global Immunoassay Systems Market 10Global Immunoassay Systems Market 11Global Immunoassay Systems Market 12Global Immunoassay Systems Market 13Global Immunoassay Systems Market 14Global Immunoassay Systems Market 15Global Immunoassay Systems Market 16Global Immunoassay Systems Market 17Global Immunoassay Systems Market 18Global Immunoassay Systems Market 19Global Immunoassay Systems Market 20Global Immunoassay Systems Market 21Global Immunoassay Systems Market 22Global Immunoassay Systems Market 23Global Immunoassay Systems Market 24Global Immunoassay Systems Market 25Global Immunoassay Systems Market 26Global Immunoassay Systems Market 27Global Immunoassay Systems Market 28Global Immunoassay Systems Market 29
(Date:7/2/2015)... July 2, 2015  Spherix Incorporated (Nasdaq: SPEX ... and monetization of intellectual property, today announced a litigation ... Incorporated v. Verizon Services Corp. et al. , Case ... the Eastern District of Virginia , ... 2015 interpreting certain key claims in favor of the ...
(Date:7/1/2015)... RESEARCH TRIANGLE PARK, N.C. and ... -- Leading agricultural research firm AgBiome, and Genective, key ... partnership to accelerate the discovery of new generations ... new traits for insect control to counter the ... to partner with Genective, aligning AgBiome,s unique insect ...
(Date:7/1/2015)... 1, 2015  Axovant Sciences Ltd. (NYSE:  AXON), ... treatment of dementia, today announced that the company ... at 5:45 p.m. EDT following its presentation of ... Conference 2015 (AAIC). The event ... Dr. Lawrence Friedhoff , Chief Development Officer, ...
(Date:7/1/2015)... STRATFORD, CONNECTICUT (PRWEB) , ... July 01, 2015 ... ... disinfected or sterilized to combat pathogen transmission. CTI’ new Medical Joysticks have ... of medical devices now have an operator control device that will increase healthcare ...
Breaking Biology Technology:Spherix Issues A Litigation Update 2Spherix Issues A Litigation Update 3AgBiome and Genective collaborate to create novel insect-resistant crops 2Axovant Sciences To Host Investor Briefing And Live Webcast During AAIC 2015 Meeting 2Axovant Sciences To Host Investor Briefing And Live Webcast During AAIC 2015 Meeting 3Sanitized Medical Joysticks for a Safer and Healthier Work Environment 2
Cached News: