Navigation Links
Stanford researchers develop biodegradable substitutes for wood, plastic bottles and other materials
Date:3/18/2009

egrades quickly, and is reprocessed into new material that stays in a nice, stable form."

Recycling methane

Unlike wood scraps that can sit in landfills for months or years, hemp-PHB biocomposites decompose a few weeks after burial. As they degrade, they release methane gas that can be captured and burned for energy recovery or re-used to make more biocomposites.

"It dawned on us that there are microbes that can make PHB from methane," Criddle said. "So now we're combining two natural processes: We're using microbes that break down PHB plastics and release methane gas, and different organisms that consume methane and produce PHB as a byproduct."

It's the ultimate in recycling, he said: "In our lab, we create conditions where only those organisms that accumulate the most plastic can reproduce. We call the process 'survival of the fattest,' and we have a patent application for it."

Capturing methane has the added benefit of combating climate change, Criddle said, noting that methane gas from landfills and other sources is a powerful global warming agent, 22 times more potent than carbon dioxide gas.

One reason that biodegradable plastics aren't widely used is cost. "We're competing with polypropylene and polyethylene, two really cheap petrochemical products," Criddle said. "Most bioplastics are made using sugar from corn and other relatively expensive materials. But our process uses methane in the biogas from landfills and wastewater treatment plants, which is essentially free."

The potential of producing low-cost, recyclable biocomposites has caught the attention of the private sector. In the next few months, the researchers expect to form a new startup company with venture capital funding.

Biodegradable bottles

Interest in the hemp-PHB biocomposites has moved beyond artificial wood products. In 2008, the research team was awarded a three-year, $1.5 million grant from the C
'/>"/>

Contact: Mark Shwartz
mshwartz@stanford.edu
650-723-9296
Stanford University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Americans remain pessimistic about the environment, Stanford-AP survey finds
2. Stanford/Packard researchers find disease genes hidden in discarded data
3. Stanford researchers say climate change will significantly increase impending bird extinctions
4. Stanfords nanowire battery holds 10 times the charge of existing ones
5. Stanford researchers publish review of US medical device regulation
6. Stanford researchers make first direct observation of 3-D molecule folding in real time
7. Stanford researchers say living corals thousands of years old hold clues to past climate changes
8. Group led by Stanford physicist says theres an urgent need for nuclear detectives
9. Stanford researchers developing 3-D camera with 12,616 lenses
10. Clues to ancestral origin of placenta emerge in Stanford study
11. Inflammation triggers cell fusions that could protect neurons, Stanford research shows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/19/2014)... VEGAS , Dec. 18, 2014   LaunchKey ... built for the post-password and Internet of Things era, ... seed funding. The venture round was led by Metamorphic ... Capital, Rimrock Venture Partners, VegasTechFund, and others.  LaunchKey has ... new funding to expand its team and bring LaunchKey ...
(Date:12/17/2014)...  HITLAB SM announced today its completion ... confirm its adherence to current U.S. Food and ... to conduct regulated smart device and smart phone ... safety and research quality. "HITLAB is ... delivery with innovative technology," said Laura Pugliese ...
(Date:12/17/2014)...  Automation is fundamentally transforming the travel experience ... international borders. Over the past decade, ePassports, biometric ... travelers to self process through border control via ... an increasing number of airports, seaports, and land ... to Maxine Most , Principal at Acuity ...
Breaking Biology News(10 mins):LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2
... of Manchester funded by the Fungal Research Trust have ... - in our pillows. , ... pillows, is most likely to cause disease; and the ... of death in leukaemia and bone marrow transplant patients. ...
... Left untreated, prostate cancer cells often metastasize, or spread, ... extremely painful. , More than 80 percent of ... disease in their bones. But scientists know very little ... in bone tissue and produce the dense bony lesions ...
... money from Johns Hopkins Institute of Cell Engineering, a Johns ... between the health of stem cells and the length of ... are repetitive stretches of DNA that protect chromosomes in much ... fabric from fraying. Each time a cell divides, its chromosome ...
Cached Biology News:Pillows - a hot bed of fungal spores 2Prostate cancer uses Wnt signaling proteins to promote growth of bone tumors 2Prostate cancer uses Wnt signaling proteins to promote growth of bone tumors 3A little telomerase isn't enough 2A little telomerase isn't enough 3A little telomerase isn't enough 4
(Date:12/24/2014)... (PRWEB) December 23, 2014 Nashville Fertility ... was elected treasurer for the American Society for Reproductive ... knowledge and research in reproductive medicine. In his ... seat on the executive board and will have a ... Dr. Hill has actively supported ASRM since 1984 when ...
(Date:12/24/2014)... 2014 China Biologic Products, Inc. (NASDAQ: ... fully integrated plasma-based biopharmaceutical company in ... subsidiary, Shandong Taibang Biological Products Co. Ltd., has ... China Food and Drug Administration (the "CFDA") for ... disclosed in the Company,s public filings, the CFDA ...
(Date:12/24/2014)... 23, 2014 Sigma-Aldrich Corporation (NASDAQ: ... period under the Hart-Scott-Rodino Antitrust Improvements Act (HSR ... December 22, 2014, thereby completing the U.S. HSR ... acquisition of the Company by Merck KGaA, Darmstadt, ... another condition to closing the transaction, which remains ...
(Date:12/22/2014)... The Center for Professional Innovation ... training across the life sciences industry, has partnered with ... to provide the organization's members with discounted classroom courses, ... the more than 350 sessions across 80 course titles. ... when registering for a public course at ...
Breaking Biology Technology:Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 2Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 3China Biologic Receives GMP Certification for New Coagulation Factor Facility 2China Biologic Receives GMP Certification for New Coagulation Factor Facility 3Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 2Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 3CfPIE Announces Partnership with the Society for Clinical Data Management 2CfPIE Announces Partnership with the Society for Clinical Data Management 3
... Immtech Pharmaceuticals, Inc. (NYSE Alternext US: IMM.BC) today ... & Company, LLP as its independent registered public ... the Company,s independent registered public accounting firm was ... The appointment will result in cost savings for ...
... AND EUROPE FOR TECHNOLOGY USED IN CORGENIX NEXT ... Corgenix Medical Corporation (OTC Bulletin Board: CONX), ... kits, has received notification of two new patents ... licensing rights outside of Japan. The technology ...
... 20 /PRNewswire-Asia/ -- TaiGen Biotechnology Co., Ltd., ... drugs to treat infectious diseases, cancer and diabetes-related ... USD through the private placement of preferred C ... including MPM Capital, National Development Fund, YFY group, ...
Cached Biology Technology:Immtech Announces Appointment of Virchow Krause as Independent Registered Public Accounting Firm 2Corgenix Receives Two Additional Patents on AtherOx(R) Technology 2Corgenix Receives Two Additional Patents on AtherOx(R) Technology 3TaiGen Biotechnology Secures 37 Million USD in Series C Round Financing 2
... Activity Kit ADAM17 Activity Kit TNF-α Converting ... PROTECT FROM LIGHT. AVOID FREEZE/THAW CYCLES. The ... and sensitive assay designed to measure human ... samples and for screening enzyme inhibitors. An ...
... unique agarose-digesting enzyme developed by Promega for ... or RNA from agarose gels. The enzyme ... (LMP) agarose melted at 6575C does not ... temperature before hydrolysis. Simply place the tube ...
...
... FREEZE. Nuclear matrix proteins (NMPs) make up the ... associated with such functions as DNA replication, RNA ... matrix has been shown to be highly insoluble ... that cell death releases soluble nuclear matrix proteins ...
Biology Products: