Posts tagged as:

Nanomaterials

The safety of nanotechnology-based sunscreens – some reflections

by Andrew Maynard July 18, 2010

A few weeks ago, I set Friends of the Earth a challenge – What is your worst case estimate of the human health risk from titanium dioxide and/or zinc oxide nanoparticles in sunscreens? The challenge came out of an article from FoE on nanomaterials and sunscreens, which I subsequently critiqued on 2020 Science.  Georgia Miller [...]

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Just how risky could nanoparticles in sunscreens be?

by Andrew Maynard June 8, 2010

Following up from my previous post, here’s an open question to Friends of the Earth: What is your worst case estimate of the human health risk from titanium dioxide and/or zinc oxide nanoparticles in sunscreens? What I am interested in is a number – a probability of a specific human health impact being caused by [...]

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TSCA reform and engineered nanomaterials

by Andrew Maynard April 23, 2010

A bit of a wonky blog I’m afraid, but having seen relatively little on the recently introduced Safe Chemicals Act of 2010 and its relevance to engineered nanomaterials on the web, I thought I would post something short and sweet here. Just over a week ago, Senator Lautenberg introduced a bill in the US Senate [...]

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Nanotechnology researchers at sea when it comes to safety

by Andrew Maynard February 2, 2010

If you ever wanted proof that the nanotechnology research community is floundering when it comes to safe working practices, look no further than a paper just published in the journal Nature Nanotechnology.  The paper, written by researchers at the Nanoscience Institute of Aragon (NIA) in Spain, surveys nanosafety practices in labs around the world.  Sadly, [...]

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Is nanotechnology poised for the ride of its life?

by Andrew Maynard August 18, 2009

In the wake of a new study linking “nanotechnology” to two deaths and five additional cases of lung disease, the emerging technology of the ultra-small could be in for a rough ride.  Yet the real risk is that in the rush to use or even abuse the findings, the science and it’s true relevance are [...]

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Nanotechnology: Weighing the risks of regulation

by Andrew Maynard July 8, 2009

I’m often intrigued by the evolution of an article from its early drafts to the final version.  To complement today’s commentary on nanotechnology regulation in the journal Nature, written jointly with David Rejeski, I thought it would be interesting to post an early draft of the same paper here.  This is what the piece looked [...]

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Nanotechnology on Twit TV’s Dr. Kiki’s Science Hour

by Andrew Maynard July 2, 2009

Just a quick post (at least, as far as the text goes). Last week, I had the pleasure of appearing on Twit TV’s Dr. Kiki’s Science Hour with Kristen Sanford and Leo Laporte. The conversation covered nanotechnology from every conceivable angle. I should have known with Leo’s opening question – asking what I thought of [...]

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Nanoscale control: Leveraging biology

by Andrew Maynard June 1, 2009

Part 6 of a series on rethinking science and technology for the 21st century The story so far: We are facing an unprecedented confluence of three factors that are forcing us to rethink how we develop and use science and technology to the benefit of society.  Coupling between our action’s and the Earth’s re-actions is [...]

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Control at the nanoscale: Smallness, strangeness and sophistication

by Andrew Maynard April 29, 2009

Part 5 of a series on rethinking science and technology for the 21st century Last time in this series of occasional blogs, I made the rather bold statement that while science and technology are going to have a highly visible impact on our lives over the next few decades, progress is going to be underpinned [...]

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Control: Gaining mastery over the world at the finest level

by Andrew Maynard April 16, 2009

Part 4 of a series on rethinking science and technology for the 21st century So far in this series of occasional blogs, I’ve covered coupling and communication—two of three “C’s” which together are challenging how science and technology are best used to serve society.  Now it’s the time to delve into the third “C”—control. Because [...]

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Working safely with carbon nanotubes

by Andrew Maynard March 17, 2009

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 [...]

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Nanotechnology risk research, ten years on

by Andrew Maynard March 2, 2009

Ten years ago to the month, one of the first research reports detailing the challenges of ensuring the safe use of engineered nanomaterials was delivered to the UK Health and Safety Executive.  The report wasn’t for general release, and you’ll be hard pressed to find a copy of it in the public domain.  But as [...]

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Sing a song of nanotechnology

by Andrew Maynard February 26, 2009

Explaining nanotechnology to people is tough—as anyone working in the field will tell you.  Clever stuff that’s too small to see with the naked eye doesn’t slot easily into most people’s human-scale view of the world.  So it’s not surprising that many non-experts (and even some “experts”) end up with a rather mangled idea of [...]

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All you wanted to know about nanotechnology, from a pack of Mentos and a bottle of Coke

by Andrew Maynard January 25, 2009

I spend quite a bit of my time talking to different groups about nanotechnology, including its potential and its challenges. And as a result, I’m constantly on the prowl for new ways of illustrating why nanotechnology is important. In particular, I’ve been keeping my eyes peeled for a quick and dirty (and fun) demonstration to [...]

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Getting to grips with nanomaterial toxicity

by Andrew Maynard December 15, 2008

Introducing MINChar—a new community initiative to support effective material characterization in nanotoxicity studies. Here’s a tough one:  Imagine you have a new substance—call it substance X—and you run some tests to see how toxic it is.  But you’re not quite sure what substance X is. You know that it is a powder, and it is [...]

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Taking a fresh look at nanomaterials

by Andrew Maynard November 11, 2008

The Royal Commission on Environmental Pollution report on Novel Materials Imagine for one naïve moment that we have a pretty good handle on managing the environmental impact of existing manufactured “stuff”.  Then someone comes along and invents some “new stuff” that behaves very differently from the “old stuff.” How can we be sure that the [...]

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Value-added nanotechnology

by Andrew Maynard September 3, 2008

Amidst the cacophony of debate swirling around the true meaning of nanotechnology, I head a voice or reason last week.  The voice was that of Dr. Bernd Sachweh of BASF, speaking at the European Aerosol Conference in Thessoloniki. I paraphrase, but the essence of Bernd’s point was this: ‘Nano’ is not a thing or a product.  It has [...]

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Smart materials; smart choices?

by Andrew Maynard May 31, 2008

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 comes along that helps put things [...]

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Nano-silver: Looking a little tarnished?

by Andrew Maynard May 2, 2008

The author Neal Stephenson got it wrong—at least, if this week’s nano-news is anything to go by!   In his landmark 1995 novel “The Diamond Age,” Stephenson described a future built on nano-innovation.  But thirteen years later, nanotechnology seems to be ushering in “The Silver Age.”  And to some it’s looking a little tarnished. First we [...]

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