Nano-silver: Old problems or new challenges?

September 9, 2008

Project on Emerging Nanotechnologies

The blogging community is no stranger to the use (and possible abuse) of nanometre-scale silver—products ranging from silver-enhanced socks and toothpaste to plush toys and cure-alls have all appeared in the spotlight recently. With each passing month, the number of nano-silver gizmos on the market is growing.

Back in March 2006 when the Project on Emerging Nanotechnologies Consumer Products Inventory was launched, there were 25 products claiming to use nanoscale silver. In contrast, the August 2008 update of the inventory brought the number of nano-silver containing products to 235—an increase of nearly ten times over two and a half years!

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Smart materials; smart choices?

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 back into perspective.  For me, a paper just published on-line in the journal Nano Letters did exactly that. Read the rest of this entry »