Navigation Links
Nano-velcro clasps heavy metal molecules in its grips
Date:9/9/2012

Mercury, when dumped in lakes and rivers, accumulates in fish, and often ends up on our plates. A Swiss-American team of researchers led by Francesco Stellacci at the Ecole Polytechnique Fdrale de Lausanne (EPFL) and Bartosz Grzybowski at Northwestern University has devised a simple, inexpensive system based on nanoparticles, a kind of nano-velcro, to detect and trap this toxic pollutant as well as others. The particles are covered with tiny hairs that can grab onto toxic heavy metals such as mercury and cadmium. This technology makes it possible to easily and inexpensively test for these substances in water and, more importantly, in the fish that we eat. Their new method can measure methyl mercury, the most common form of mercury pollution, at unprecedentedly small attomolar concentrations. The system is outlined in an article appearing September 9, 2012 in the journal Nature Materials.

Methyl mercury, toxic and difficult to monitor

Researchers are particularly interested in detecting mercury. Its most common form, methyl mercury, accumulates as one goes up the food chain, reaching its highest levels in large predatory fish such as tuna and swordfish. In the US, France and Canada, public health authorities advise pregnant women to limit fish consumption because mercury can compromise nervous system development in the developing fetus.

"The problem is that current monitoring techniques are too expensive and complex," explains Constellium Chair holder at EPFL and co-author Francesco Stellacci. "We periodically test levels of mercury in drinking water, and if those results are good, we make the assumption that levels are acceptable in between those testing periods." But industrial discharge fluctuates.

A simple, inexpensive new technology

The technology developed by the Swiss-American team is simple to use. A strip of glass covered with a film of "hairy" nanoparticles is dipped into the water. When an ion
'/>"/>

Contact: Francesco Stellacci
francesco.stellacci@epfl.ch
41-798-125-213
Ecole Polytechnique Fdrale de Lausanne
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Kinesiology team gets $975,000 Defense grant to study effects of heavy loads on soldiers
2. Handful of heavyweight trees per acre are forest champs
3. Earthworms soak up heavy metal
4. A new avenue to better medicines: Metal-peptide complexes
5. Iowa State, Ames Lab researchers invent new tool to study single biological molecules
6. New model gives hands-on help for learning the secrets of molecules
7. Weighing molecules 1 at a time
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/6/2015)... and TELTOW, Germany , ... 2015 Siggraph Conference, SensoMotoric Instruments (SMI) shows ... reality , based on Epson,s Moverio BT-200 ... tracking platform. With this new solution, unprecedented quality and ... hands-free interaction with context-sensitive displays. For the first time, ...
(Date:8/4/2015)... DUBLIN , Aug. 04, 2015 /PRNewswire/ ... ( http://www.researchandmarkets.com/research/nvh7k2/digital_forensics ) has announced the addition ... Component (Hardware, Software, and Service), Sub-Segment (Computer ... Cloud Forensics), Tool Types, Service, Vertical and ... report to their offering. By ...
(Date:7/31/2015)... , 31 de julho de 2015 A ... www.icg-10.org ) será realizada pela BGI de 22-25 de outubro ... A conferência está celebrando seu 10 o. ... a ICG se tornou uma das reuniões mais influentes ... encontros científicos mais dinâmicos, entusiastas e prazerosos. ...
Breaking Biology News(10 mins):SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 2SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 3Digital Forensics Market - The Market Represents a Compound Annual Growth Rate (CAGR) of 11.3% From 2015 to 2020 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3
... Northwestern University scientist Mary J.C. Hendrix and colleagues ... skin cells nor less aggressive melanoma cells) contain ... stem cells. This groundbreaking work led to ... may help to explain how, by becoming more ...
... feathers may add value to the poultry industry ... plastic waste. , According to the U.S. Environmental ... non-biodegradable plastic waste ends up in landfills each ... engineering at Virginia Tech, is investigating ways to ...
... cells that can repair the most severe damage to the ... lie around and do nothing, but when neighboring cells die, ... report on the discovery will appear online next week in ... Army Reserves of our nose,?explains lead author Randall Reed, Ph.D., ...
Cached Biology News:Reversing cancer cells to normal cells 2Reversing cancer cells to normal cells 3Researcher examines polymers created with poultry feathers 2When smell cells fail they call in stem cell reserves 2
(Date:8/27/2015)... , Aug. 27, 2015 The National ... patient,s eyes—and life—were saved by doctors at Vanderbilt University ... with NNFF, NovaBay Pharmaceuticals and Dr. John Crew ... at Seton Medical Center in Daly ... used a breakthrough approach, pioneered by Dr. Crew, that ...
(Date:8/27/2015)... 27, 2015 HUYA Bioscience International (HUYA) today announced ... Japan Society of HTLV-1, held this week at the ... of the Society is to promote research on HTLV-1 ... medical technology and research related to these fields to ... "HUYA is proud to support this prestigious conference," said ...
(Date:8/27/2015)... ... August 27, 2015 , ... METTLER TOLEDO's web-based ... down the product choices to a manageable shortlist of bench and floor scales ... models that fit best with the customer’s industry and application. , Side-by-side ...
(Date:8/26/2015)... ... August 26, 2015 , ... MediVet Biologics, a leader in ... is to open in Manhattan, Kansas in early October, 2015. The location of ... research and development through collaboration with researchers from Kansas State University’s College of ...
Breaking Biology Technology:Patient's Life and Eyes Saved from Gruesome Flesh-Eating Infection Consuming Her Face 2Patient's Life and Eyes Saved from Gruesome Flesh-Eating Infection Consuming Her Face 3HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 2HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 3HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 4METTLER TOLEDO Updates Online Scale Selection Tool 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 3
... 1 Anadys Pharmaceuticals,Inc. (Nasdaq: ANDS ), ... developing novel medicines in the areas of hepatitis ... the third quarter ended,September 30, 2007 and operational ... an important transition for Anadys,",said Steve Worland, Ph.D., ...
... Growth of 58.9% Year-over-Year, SHENZHEN, China, Nov. ... MR ), a leading developer, manufacturer,and marketer of ... presence, today announced its selected unaudited financial,results for ... Highlights for Third Quarter 2007, -- Third ...
... Healthcare (Nasdaq: MRGE ; TSX: MRG), today,announced that ... Qualifications Panel stating that the panel determined to continue,the ... Stock Market,subject to the Company,s filing of its Form ... later than January 29, 2008. As indicated in the ...
Cached Biology Technology:Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 2Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 3Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 4Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 5Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 6Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 7Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 8Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 9Mindray Medical International Announces Third Quarter 2007 Results 2Mindray Medical International Announces Third Quarter 2007 Results 3Mindray Medical International Announces Third Quarter 2007 Results 4Mindray Medical International Announces Third Quarter 2007 Results 5Mindray Medical International Announces Third Quarter 2007 Results 6Mindray Medical International Announces Third Quarter 2007 Results 7Mindray Medical International Announces Third Quarter 2007 Results 8Mindray Medical International Announces Third Quarter 2007 Results 9Mindray Medical International Announces Third Quarter 2007 Results 10Mindray Medical International Announces Third Quarter 2007 Results 11Mindray Medical International Announces Third Quarter 2007 Results 12Mindray Medical International Announces Third Quarter 2007 Results 13Mindray Medical International Announces Third Quarter 2007 Results 14Mindray Medical International Announces Third Quarter 2007 Results 15Mindray Medical International Announces Third Quarter 2007 Results 16Mindray Medical International Announces Third Quarter 2007 Results 17Mindray Medical International Announces Third Quarter 2007 Results 18Mindray Medical International Announces Third Quarter 2007 Results 19Mindray Medical International Announces Third Quarter 2007 Results 20NASDAQ Panel Grants Merge Technologies Additional Time to Regain Compliance 2NASDAQ Panel Grants Merge Technologies Additional Time to Regain Compliance 3
... stain was developed specifically for reduced mutagenicity ... DNA in agarose or acrylamide gels. SYBR Safe ... bromide but SYBR Safe stain's detection sensitivity is ... stain comes as a premixed solution that can ...
... This exceptionally sensitive nucleic acid gel stain ... low background in gels, making it ideal for ... standard UV transilluminators. SYBR Green I nucleic ... capillary electrophoresis, real-time PCR assays and bandshift ...
... Todays advanced protein cross-linking techniques are ... text, Dr. Shan S. Wong. This valuable ... reaction schemes and current application references. More ... of protein cross-linking and conjugate preparation ...
... proteomic service includes protein separation by ... the PDQuest software package from Bio-Rad ... spectrometry. In order to meet customers ... data analysis and format of the ...
Biology Products: