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  • New carbon nanotube study raises the health impact stakes

    From 2020 Science:I’m looking at an electron microscope image of a carbon nanotube - as I cannot show it here, you’ll have to imagine it.  It shows a long, straight, multi-walled carbon nanotube, around 100 nanometers wide and 10 micrometers long.  There is nothing particularly unusual about this.  What is unusual is that the ...
    Posted to Andrew Maynard (Weblog) by andrew.maynard@physics.org on March 26, 2009
  • Working safely with carbon nanotubes

    So you want to make or use carbon nanotubes, but you are worried about handling then safely.  What do you do?  The good news is that the UK Health and Safety Executive has just published an information sheet that addresses just this question.  Risk management of carbon nanotubes is (according to the blurb) “specifically about the ...
    Posted to Andrew Maynard (Weblog) by andrew.maynard@physics.org on March 17, 2009
  • Resolving the carbon nanotube identity crisis

    From 2020Science.org: Twelve months ago today I held a bag of multi-walled carbon nanotubes up before a hearing of the U.S. House Science Committee.  I wanted to emphasize the discrepancy between the current state of the science on carbon nanotubes, and a tendency to classify this substance as the relatively benign material graphite from ...
    Posted to Andrew Maynard (Weblog) by andrew.maynard@physics.org on November 3, 2008
  • Smart materials; smart choices?

    Why nano?  Why care?  For non-nanotech initiates, an obsession with nanotechnology must sometimes seem a bizarre occupation of the sad and lonely.  And even within the nanotechnology community, who hasn’t had occasional doubts over the legitimacy of singling out “nano” as something special?  Yet occasionally a piece of work ...
    Posted to Andrew Maynard (Weblog) by andrew.maynard@physics.org on May 31, 2008
  • Carbon nanotubes: the new asbestos? Not if we act fast.

    Mix carbon nanotubes and asbestos together (metaphorically) and you get an explosive mix—at least if news coverage of the latest publication coming out of Professor Ken Donaldson’s team is anything to go by.  The research—published on-line today in Nature Nanotechnology—is the first to explicitly test the hypothesis that long carbon nanotubes ...
    Posted to Andrew Maynard (Weblog) by andrew.maynard@physics.org on May 21, 2008
  • The passing of a science hero

    On March 18th, the science fiction writer Arthur C. Clarke died in his home in Sri Lanka at the age of 90.  A master developer and assembler of ideas, Clarke will be remembered fondly by many for igniting their enthusiasm for science, and how it might be used to better our lives.  His passing leaves a hole in the ranks of science heroes ...
    Posted to Andrew Maynard (Weblog) by andrew.maynard@physics.org on March 19, 2008
  • Invest in nano applications, and the risks will take care of themselves?

    I have on my desk a plastic bag of carbon nanotubes—2 grams of dry, 60% purity single walled carbon nanotubes to be precise—bought from Cheap Tubes Inc. for the princely sum of $80.  And I am wondering what to do with them.  Despite the cosy assurances of the Manufacturers Safety Data Sheet that these are no more harmful than pencil ...
    Posted to Andrew Maynard (Weblog) by andrew.maynard@physics.org on November 4, 2007