Tag Archives: Nanotechnology

A simple, rapid test to help ensure safer meat

(American Chemical Society 18 November 2015) Deciding whether to cook or toss a steak that’s been in the fridge for a few days calls for a sniff test. This generally works well for home cooks. But food manufacturers that supply tons of meats to consumers require more reliable measures. In a new journal called ACS Sensors, scientists report a simple method that uses nanotubes to quickly detect spoilage. It could help make sure meats are safe when they hit store shelves.

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New sensing tech could help detect diseases, fraudulent art, chemical weapons

(University at Buffalo 12 June 2015) Discovered in the 1970s, SERS is a sensing technique prized for its ability to identify chemical and biological molecules in a wide range of fields. It has been commercialized, but not widely. That may soon change. An international research team led by University at Buffalo engineers has developed nanotechnology that promises to make SERS simpler and more affordable.

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Gold nanoparticles show promise for early detection of heart attacks

(New York University Polytechnic School of Engineering 15 January 2015) A novel colloidal gold test strip is demonstrating great potential for early detection of certain heart attacks. Researchers are developing the strip to test for cardiac troponin I (cTn-I); its level is several thousand times higher in patients experiencing myochardial infarctions. The new strip uses microplasma-generated gold nanoparticles. Compared to AuNPs produced by traditional chemical methods, the surfaces of thesenanoparticles attract more antibodies, which results in significantly higher detection sensitivity.

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Australian authorities admit knowledge gaps on nanopesticides, but insist they can be properly regulated.

ABC Rural News James Bennett 29 October 2014

Australia’s current system for approving agricultural chemicals can effectively assess the safety of ‘nano’ products, the Australian Pesticides and Veterinary Medicines Authority (APVMA) says.
Nano materials are said to offer farmers major benefits like more effective, targeted use of pesticides that mean lower doses and the ability to develop better controlled-release chemicals and livestock medicines.
The APVMA’s CEO Kareena Arthy said the organisation’s existing criteria for assessing the safety of agricultural chemicals is adequate,

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Researchers invent a microchip to diagnose type 1 diabetes

ScienceAlert Australia Gabriella Munoz 14 July 2014

Diagnosing type 1 diabetes has never been easier thanks to a new device that, when approved, could have a production cost of US$20.  The chip relies on a fluorescence-based method for detecting antibodies in the blood and has a special coating with an array of nanoparticle-sized islands of gold that intensifies the fluorescent response, helping doctors identify the antobodies faster

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NNI releases progress review on environmental, health, & safety research

EurekAlert June 26, 2014  Marlowe Newman

The National Nanotechnology Initiative (NNI) released today a Progress Review on the Coordinated Implementation of the National Nanotechnology Initiative 2011 Environmental, Health, and Safety Research Strategy, a document that demonstrates the wide range of research activities, accomplishments, and collaborations of Federal agencies working toward the responsible development of nanotechnology.

The National Nanotechnology Coordination Office (NNCO) will be hosting a webinar to highlight the release of this document, describe key advances, and answer questions from stakeholders and the public on the contents of the report. Details will be provided when available on Nano.gov.  Continue reading…

Breathalyzer test may detect deadliest cancer

EurekAlert 18-Jun-2014

Lung cancer causes more deaths in the U.S. than the next three most common cancers combined (colon, breast, and pancreatic). The reason for the striking mortality rate is simple: poor detection. Lung cancer attacks without leaving any fingerprints, quietly afflicting its victims and metastasizing uncontrollably – to the point of no return.
Now a new device developed by a team of Israeli, American, and British cancer researchers may turn the tide by both accurately detecting lung cancer and identifying its stage of progression. The breathalyzer test, embedded with a “NaNose” nanotech chip to literally “sniff out” cancer tumors, was developed by Prof. Nir Peled of Tel Aviv University’s Sackler Faculty of Medicine, Prof. Hossam Haick (inventor) of the Technion – Israel Institute of Technology, and Prof. Fred Hirsch of the University of Colorado School of Medicine in Denver.

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