Comments on: Nano “Trojan Horse” Study Gets Top Billing http://blogs.edf.org/nanotechnology/2008/03/07/nano-%e2%80%9ctrojan-horse%e2%80%9d-study-gets-top-billing/ Our experts' views on chemical and nano news Tue, 16 Mar 2010 15:07:26 -0700 http://wordpress.org/?v=2.9.2 hourly 1 By: Cal Baier-Anderson http://blogs.edf.org/nanotechnology/2008/03/07/nano-%e2%80%9ctrojan-horse%e2%80%9d-study-gets-top-billing/comment-page-1/#comment-17 Cal Baier-Anderson Mon, 10 Mar 2008 14:18:15 +0000 http://blogs.edf.org/nanotechnology/2008/03/07/nano-%e2%80%9ctrojan-horse%e2%80%9d-study-gets-top-billing/#comment-17 Good question! Yes, equimolar amounts of metals were tested. According to the <a href="http://pubs3.acs.org/acs/journals/supporting_information.page?in_manuscript=es062629t" rel="nofollow">supporting information</a> provided by the authors on the ES&T website (subscription required), the following concentrations were tested, noting that since there are no known titania salts soluble in neutral, aqueous media, titanium was not tested in this component of the study: FeCl3 was tested at 0.371 mM, corresponding to 30 ppm Fe2O3, MnCl2 was tested at 0.393 mM, corresponding to 30 ppm Mn3O4, and CoCl2 was tested at 0.374 mM, corresponding to 30 ppm Co3O4. Good question!

Yes, equimolar amounts of metals were tested. According to the supporting information provided by the authors on the ES&T website (subscription required), the following concentrations were tested, noting that since there are no known titania salts soluble in neutral, aqueous media, titanium was not tested in this component of the study:

FeCl3 was tested at 0.371 mM, corresponding to 30 ppm Fe2O3,
MnCl2 was tested at 0.393 mM, corresponding to 30 ppm Mn3O4, and
CoCl2 was tested at 0.374 mM, corresponding to 30 ppm Co3O4.

]]> By: Steven Fowkes http://blogs.edf.org/nanotechnology/2008/03/07/nano-%e2%80%9ctrojan-horse%e2%80%9d-study-gets-top-billing/comment-page-1/#comment-14 Steven Fowkes Sat, 08 Mar 2008 18:17:34 +0000 http://blogs.edf.org/nanotechnology/2008/03/07/nano-%e2%80%9ctrojan-horse%e2%80%9d-study-gets-top-billing/#comment-14 Was a oxidative-damage comparison made with an equimolar exposure of the metal oxide as a simple salt? Was a oxidative-damage comparison made with an equimolar exposure of the metal oxide as a simple salt?

]]>