Navigation Links
Buckyballs could keep water systems flowing
Date:3/5/2009

pped up quickly. If we could increase the time between membrane replacements by 50 percent, for example, that would be a huge cost savings."

According to Chae, the addition of buckyballs to treatment membranes had a two-fold effect. First, treated membranes showed less bacterial attachment than non-treated membranes. After three days, the membranes treated with buckyballs had on average 20 colony forming units, the method by which bacterial colonies are counted.

"In contrast, the number of bacterial colonies on the untreated membrane was too numerous to count," Chae said.

Chae also found that the presence of the buckyballs inhibited respiration, or the ability of the bacteria to use oxygen to fuel its activities.

"As the concentration of buckyballs increased, so did the inhibition of respiration," Chae said. "This respiratory inhibition and anti-attachment suggests that this nanoparticle may be useful as an anti-fouling agent to prevent the biofouling of membranes or other surfaces."

Gunsch said the mechanisms involved are not well-understood.

Both Gunsch and Chae believe that since buckyballs are one of the most widely used nanoparticles, additional research is needed to determine if they have any detrimental effects on the environment or to humans. This is one of many issues being studied at Duke's Center for Environmental Implications of Nanotechnology.

"We need to figure out how resistant these coatings will be to long-term use," Gunsch said. "If they can indeed prevent fouling, they will last longer. If they slough off over time, we need to know what the effects will be."

The current experiments in the laboratory were conducted with Escherichia coli K12, a strain of the bacteria that is widely used in laboratory experiments.

"We focused on a quite specific microorganism, so the next stage of our research will to see if these nanoparticles will have the same effects on bacteria com
'/>"/>

Contact: Richard Merritt
richard.merritt@duke.edu
919-660-8414
Duke University
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. How buckyballs hurt cells
2. Video shows buckyballs form by shrink wrapping
3. MIT: Nanostitching could strengthen airplane skins, more
4. Genetic discovery could lead to advances in dental treatment
5. Cheaper materials could be key to low-cost solar cells
6. NPL research shows there could be no end in sight for Moore’s Law
7. Michigan Company Founded upon What Could Be History's Most Important Breakthrough in AI and Robotics
8. Cold atoms could replace hot gallium in focused ion beams
9. Could Database Software Help Cure Alzheimers and Save the Earth?
10. A new material could act as a nanofridge for microchips
11. New knowledge about thermoelectric materials could give better energy efficiency
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Buckyballs could keep water systems flowing
(Date:8/19/2014)... 19, 2014 Research and ... the "Spectroscopy Equipment and Accessories - ... their offering. This report ... and Accessories in US$ Thousands by the ... Raman Spectrometers, NMR-EPR Spectrometers, Near Infrared (NIR) ...
(Date:8/19/2014)... Sales Horizons, a leader in sales ... sales skills training course to help companies develop ... staff spend the majority of their time on client ... or physician practice – providing support and education to ... Sales Horizons believes clinical staff are and should be ...
(Date:8/18/2014)... 2014   Sterne, Kessler, Goldstein & Fox P.L.L.C. ... Washington, DC , announced today that it has ... (IPR) with the U.S. Patent and Trademark Office (USPTO) ... Laboratories, Inc. (Nasdaq: BRLI).  These IPR petitions aim to ... Genetics, Inc. These patents have been asserted against GeneDx ...
(Date:8/18/2014)... , Aug. 18, 2014 TNI BioTech, Inc. ... pioneering the manufacturing and marketing of innovative therapies for ... Company is providing a second notice of TNI BioTech,s ... making the announcement, Noreen Griffin , founder and ... advance for your participation in the Annual Meeting. On ...
Breaking Biology Technology:Global Spectroscopy Equipment and Accessories - Strategic Business Report 2014 2Sales Horizons Launches a New Online Sales Training Course for MedTech Clinical Staff to Develop Their Sales Skills 2Sales Horizons Launches a New Online Sales Training Course for MedTech Clinical Staff to Develop Their Sales Skills 3Sterne Kessler Files 11 IPR Petitions On Behalf Of GeneDx, Inc., Subsidiary Of BioReference Laboratories, Inc. 2Sterne Kessler Files 11 IPR Petitions On Behalf Of GeneDx, Inc., Subsidiary Of BioReference Laboratories, Inc. 3TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 2TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 3TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 4
... Ariz., April 23 ImaRx Therapeutics,Inc. (Nasdaq: ... into an agreement,with Abbott Laboratories pursuant to which ... non-recourse promissory note with Abbott issued in,connection with ... title to,the urokinase assets, including the remaining inventory ...
... (NYSE: SGP ) today announced two agreements ... in Europe. These agreements are,in connection with conditions ... its October 2007 clearance of Schering-Plough,s acquisition of ... In two separate agreements, Pfizer and Virbac, ...
... today,announced that on April 22, 2008 its management ... Emerging Business Awards, known as the "Bennies.",BioNanomatrix won ... group of growing entrepreneurial firms in the Philadelphia ... the,award on behalf of the company., The ...
Cached Biology Technology:ImaRx Therapeutics Satisfies Abbott Note Obligation Associated With the Acquisition of Urokinase 2ImaRx Therapeutics Satisfies Abbott Note Obligation Associated With the Acquisition of Urokinase 3Schering-Plough Announces Planned Divestiture of Select Animal Health Products in Europe 2BioNanomatrix Named 'Best Management Team' at the 2008 Ben Franklin Emerging Business Awards 2
(Date:8/19/2014)... other science courses are increasingly being asked to ... have a new textbook to help them do ... month by Princeton Press and co-authored by scientists ... Synthesis (NIMBioS), teaches readers about basic mathematical and ... and explain biological phenomena. , Suitable for entry-level ...
(Date:8/19/2014)... LIVERPOOL, UK 19 August 2014: An engineer at ... around, despite not having a brain to communicate with ... at Harvard, Professor L Mahadevan, has developed a mathematical ... traditional view of how these soft bodied animals get ... of the central pattern generator (CPG) which states that ...
(Date:8/19/2014)... to treat pain, but its effect on pain ... a recent study reported on the Neural ... rat models of an avulsion injury to the ... neuropathic pain) were given electroacupuncture stimulation at bilateral ... (GB34). After electroacupuncture therapy, chronic neuropathic pain in ...
Breaking Biology News(10 mins):New textbook introduces undergraduates to mathematics for the life sciences 2Secrets of how worms wriggle uncovered 2
... have elucidated a key mechanism by which cancer cells ... and raw materials required to sustain runaway growth. ... Ludwig Cancer Research study also reveals how the aggressive ... therapies that should disrupt this capabilityknown as the Warburg ...
... animals will choose to steer clear of dirt but their ... risk of disease as a result. A study of ... near to used nesting material and droppings left by other mice. ... opportunity to eat outweighs an increased risk of disease from other ...
... to learn that individual "molecular muscles" within cells respond to ... cells "feel" the environment and appropriately adapt their shapes and ... 20 in the journal Nature Materials , specifically sheds ... internal signals. A computer model the researchers developed, ...
Cached Biology News:Targeting cancer's sweet tooth 2Targeting cancer's sweet tooth 3Clean living is a luxury wild animals can't afford, study suggests 2Cells' 'molecular muscles' help them sense and respond to their environments 2Cells' 'molecular muscles' help them sense and respond to their environments 3
... kit for stabilizing 1.5mg of purified RNA ... for the stabilization of aqueous RNA samples ... such as guanidine, phenol/chloroform, silica, oligo dT ... Kits contain all the necessary components for ...
Human SEAP ORF, provided in a pORF plasmid. pORF is an expression plasmid selectable with Ampicillin....
...
... culture flask is designed for culturing organisms requiring ... can also be used in serum production. Triple ... maximal oxygen transfer to culture medium. Beaded neck ... plugs or No. 13 rubber stoppers. This flask ...
Biology Products: