Navigation Links
Citrate appears to control buckyball clumping but environmental concerns remain
Date:4/8/2008

Blacksburg, Va. -- Fullerenes, also fondly known as buckyballs, are showing an ugly side. Since being discovered in 1985, the hollow carbon atoms have been adapted for nanotechnology and biomedical applications ranging from electronics to carriers of imaging materials.

It appears that the hydrophobic, or water hating, carbon molecules clump together in water, forming aggregates of thousands of molecules. And there are reports that these aggregates can be toxic to microorganisms and even fish, should they escape from processing into surface water and ground water.

Now researchers at Virginia Tech have demonstrated that this behavior can be changed by the addition of citric acid although the good news and bad news of this recent discovery has yet to be determined. They will report on their research to both environmental chemists and colloidal chemists at the American Chemical Society 235th national meeting in New Orleans on April 6 to 10, 2008.

Our group and other research groups worldwide are examining what makes these fullerene aggregates tick and how they form, said Peter Vikesland, associate professor of civil and environmental engineering at Virginia Tech. Once they clump, they dont settle out. People dont know why they remain suspended. And we dont really know how many molecules are in a clump. We use the term nC60 where N means some number that is extremely large.

What Vikeslands group has done that is different and novel is, instead of mixing the molecules with water, they have added citric acid, a naturally occurring and readily available acid. The result is that instead of unstructured clumps, we get reproducible sphere-shaped aggregates, he said.

They discovered, for example, that in the presence of a little bit of acid, which emulates the environment in the case of an accidental release of fullerenes, the aggregates are similar to those formed in water alone. But when more acid is added,
'/>"/>

Contact: Susan Trulove
STrulove@vt.edu
540-231-5646
Virginia Tech
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. OncoVista, Inc. Closes on $6.8 Million Financing and Acquires Control of a Public Shell Company
2. Probiotic good bugs may control gut infections
3. Debiopharm Receives cGMP Certification for Quality Control of its Drug Products
4. The International Diabetes Federation (IDF) Recommends Tighter Control of Blood Glucose Levels After Meals in People With Diabetes
5. Actress Aida Turturro Tells Americans to Start Now to Talk With Their Healthcare Provider About Taking Control of Their Diabetes
6. Thermo Fisher Scientific Selected by China Doping Control Center to Supply Testing Instrumentation for the 2008 Olympic Games in Beijing
7. Nastech Enters Into Feasibility Study to Develop a Non-Injectable Dosage Form of Factor IX to Control Bleeding
8. Free White Paper Helps Biotech Laboratories Maintain a High Level of Infection Control
9. International team identifies 480 genes that control human cell division
10. White Paper Details Infection Control Challenges Hospitals Must Address During Construction
11. The Centers for Disease Control & Prevention Signs Vaccine Storage and Distribution Contract with Sentry Logistic Solutions
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/26/2015)... SQI Diagnostics Inc. ("SQI" or the "Company") (TSX-V: SQD; ... commercializes proprietary technologies and products for advanced microarray diagnostics, ... fiscal first quarter ended December  31, 2014. All figures ... unless otherwise stated. "During the quarter ... existing customers and add to our sales pipeline," said ...
(Date:2/26/2015)... 2015   Regulus Therapeutics Inc . (NASDAQ: ... and development of innovative medicines targeting microRNAs, today announced ... Chief Executive Officer of Regulus, will present a company ... Annual Healthcare Conference on Wednesday, March 4, 2015 at ... the Boston Marriott Copley Place.  The ...
(Date:2/26/2015)... FT. LAUDERDALE, Fla. , Feb. 26, 2015 /PRNewswire/ ... discussed growth priorities driven by key research advancements ... Health segments at today,s Bank of America Merrill Lynch ... worldwide met the challenge of building grain supplies the ... expected to continue at the pace of the last ...
(Date:2/26/2015)... February 26, 2015 On behalf of ... affiliated companies, Wilentz, Goldman & Spitzer, P.A. ... secrets lawsuit against Genewiz Inc. in excess of $10 ... utilized GenScript’s trade secrets, and that it improperly hired ... entered an order denying motions for judgment notwithstanding the ...
Breaking Biology Technology:SQI Diagnostics Reports First Quarter Financial Results 2SQI Diagnostics Reports First Quarter Financial Results 3SQI Diagnostics Reports First Quarter Financial Results 4SQI Diagnostics Reports First Quarter Financial Results 5SQI Diagnostics Reports First Quarter Financial Results 6Regulus to Present at Cowen and Company 35th Annual Healthcare Conference 2Regulus to Present at Cowen and Company 35th Annual Healthcare Conference 3DuPont Leader Outlines Path for Growth in Agriculture and Nutrition & Health Segments 2DuPont Leader Outlines Path for Growth in Agriculture and Nutrition & Health Segments 3DuPont Leader Outlines Path for Growth in Agriculture and Nutrition & Health Segments 4DuPont Leader Outlines Path for Growth in Agriculture and Nutrition & Health Segments 5Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 2Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 3
... Thailand, Sept. 8 Don Margolis, Chairman of,The ... ) based in,Bangkok, Thailand told The Wall Street ... that future profits inside the stem cell,research sector ... next five years, even for,companies specializing in Repair ...
... PRINCETON, New Jersey and SAN DIEGO,California, September 8 , ... for Continuous Process,Chemistry Technologies and for Further Global Expansion, ... investment of $3.3M,by a group of private and financial ... Graphisoft and Dave Tapolczay, CEO of Medical,Research Council Technology ...
... Sept. 8 /PRNewswire-FirstCall/,-- Concuity, a healthcare division ... a leading,provider of contract management and revenue ... today announced that Valley Baptist Health,System has ... more,accurately calculate payments from managed care and ...
Cached Biology Technology:Stem Cell Profits Five Years Away, Says Repair Stem Cell Institute Chairman to The Wall Street Transcript 2World Leader in Bench-Top Flow Chemistry Instruments ThalesNano, Inc. Closes Funding Round 2Valley Baptist Health System Selects Concuity's ClearContracts to More Accurately Calculate Payments from Managed Care and Government Payers 2Valley Baptist Health System Selects Concuity's ClearContracts to More Accurately Calculate Payments from Managed Care and Government Payers 3Valley Baptist Health System Selects Concuity's ClearContracts to More Accurately Calculate Payments from Managed Care and Government Payers 4
(Date:2/12/2015)... Minn. , Feb. 12, 2015   ... company specializing in clinical study management systems, has ... Program , further distinguishing iMedNet ... Clinical Research Organizations (CROs) and healthcare consultants.  Building ... support, prospective customer referrals and numerous co-marketing opportunities), ...
(Date:2/9/2015)... , Feb. 9, 2015  Lintec of America recently ... for carbon nanotube (CNT) macrostructures, including sheets, yarns and ... (UTD). Leveraging the vast industrial resources of ... Japan , Lintec of America is forming the ... TX , focusing on scaling up the manufacturing ...
(Date:2/5/2015)... Conn. , Jan. 26, 2015 NXT-ID, Inc. ... the "Company"), a biometric authentication company focused on the ... new corporate website ( http://www.nxt-id.com/ ) as part of ... smart wallet. The Company launched its new consumer website ... Gino Pereira , CEO of NXT-ID said, "Our new ...
Breaking Biology News(10 mins):MedNet Solutions Announces Key Enhancements To Its iMedNet Partner Program 2Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 2Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 3Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 4NXT-ID, Inc. Launches New Corporate Website As Part Of Ongoing 2015 Branding Initiatives For Wocket Smart Wallet 2NXT-ID, Inc. Launches New Corporate Website As Part Of Ongoing 2015 Branding Initiatives For Wocket Smart Wallet 3
... companies could economically convert their operations to wood boilers ... forestry researchers. The conversion to wood-powered burners would make ... in areas that have access to large timber resources ... professor of wood operations, Penn State. Wood is ...
... University biology professor Chris Martine has discovered and described ... City. Martine, who named the plant Solanum cowiei , ... . Martine described the plant as "gender bending," ... by producing pollen. "What they,re really doing is ...
... Professor Keon Jae Lee and Professor ... Science and Engineering at KAIST has developed the biotemplated ... Nature has its own capabilities to spontaneously ... as shells, sea sponges, and bone minerals. For instance, ...
Cached Biology News:Companies could make the switch to wood power 2Unlikely collaboration leads to discovery of 'gender-bending' plant 2Unlikely collaboration leads to discovery of 'gender-bending' plant 3
This issue concentrated on the purification of proteins for specific purposes (i.e. large-scale purification, purification for therapeutic use, etc.)...
... A.D. Smith et.al. (1997) ... entries on current biochemistry & ... than 17,000 headwords. Entries give ... the processes in which they ...
Edited by D.M. Gersten (1996) Provides comprehensive descriptions of the techniques available for analytical gel electrophoresis of proteins and offers clear step-by-step protocols for all of the m...
The Protein Kinase Factsbooks (2 Volume Set)...
Biology Products: