From: Rita Kay Calhoun <r.calhoun**At_Symbol_Here**MOREHEADSTATE.EDU>
Subject: Re: [DCHAS-L] Occupational handling of nickel nanoparticles: A case report
Date: Tue, 20 May 2014 17:35:03 +0000
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 081D54673FDDB347BC1F77943BC7C7FA019219B0**At_Symbol_Here**
In-Reply-To <0834dd67757645f1b6905385a8b92dcb**At_Symbol_Here**>

The original report indicated that one of the reactions she had was to her earrings. This suggests that previously she had had no reaction to the nickel in the earring posts, so the sensitization does appear to be related to the material being in nano form.
Just a guess.

-----Original Message-----
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Ralph B. Stuart
Sent: Tuesday, May 20, 2014 12:34 PM
Subject: Re: [DCHAS-L] Occupational handling of nickel nanoparticles: A case report

> Does the report indicate that the exposure was exacerbated the material being in the nano form?

The report is based on a single case and the fact that the symptoms arose after work with Ni nano-particle began; she had previously worked with non-nano Ni. For a particular incident, I'm not sure how you would determine whether the nano aspect exacerbated the situation. It's more of a suggestive data point report than a conclusive study...

- Ralph

Ralph Stuart CIH
Chemical Hygiene Officer
Department of Environmental Health and Safety Cornell University


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