Toxicity of Carbon Nanotubes - Protection Mask

[NanoDude]

Hi guys!

I am new here. I was wondering if someone knows anything about what kind of respiratory mask that is recommended when working with carbon nanotubes as the particles that may be produced due to grinding or drilling on a material containing carbon nanotubes are in nanoscales? I would appreciate if someone could help me with this question.

[WayneFrancis]

I don't know any reason they would be toxic. As far as a respiratory hazard I think it could be treated much like any other dust.

[DrRocket]

Hi guys!

I am new here. I was wondering if someone knows anything about what kind of respiratory mask that is recommended when working with carbon nanotubes as the particles that may be produced due to grinding or drilling on a material containing carbon nanotubes are in nanoscales? I would appreciate if someone could help me with this question.

If you are working with such a material I suggest asking the manufacturer for an MSDS (material safety data sheet).

[SolusLupus]

I don't know any reason they would be toxic. As far as a respiratory hazard I think it could be treated much like any other dust.

http://www.i-sis.org.uk/nanotubestoxic.php


The results are alarming. Five of the mice treated with high dose of one kind of nanotubes died within 7 days. All nanotube products induced epitheliod granulomas – tumour-like nodules of bloated white blood cells in the lining of the lungs - and in some cases inflammation of the lungs at 7 days. These persisted and became more pronounced in animals that were sacrificed at 90days. The lungs of some animals also showed inflammation around the bronchi, and extensive necrosis (tissue death).

As to the OP:

According to this (http://www.nanowerk.com/spotlight/spotid=1600.php), it depends on what kind of nanotubes you're actually working with and how.

I'm no expert, so I don't know how to respond :)

[Metricyard]

If you are working with such a material I suggest asking the manufacturer for an MSDS (material safety data sheet).

Actually, your employer is required to have that information readily available to you (assuming you're working in the US of A). I'd ask your boss or supervisor for that information, and if they don't have it, request it.

[astromark]

All of the above is good sound advice.. take it. Do ask for the work place safety data sheets for that substance you are working with... Often when working with fine particles a water mist is one of the best ways to lessen the hazard. BUT firstly identify if there is a hazard at all. What is it you are working with. What are you doing to it and with it. Are you in a well ventilated environment and, is equipment provided ... and...?
This is in no way a astronomy related question. That is what this forum is.
I will welcome your question only because you safety could be compromised. and I care... So, welcome Nanodude.

[mugaliens]

Often when working with fine particles a water mist is one of the best ways to lessen the hazard.

If they're hydrophallic, yes. If they're hydrophobic, not so much.

The cytotoxicity of nanotubes (http://en.wikipedia.org/wiki/Carbon_nanotubes_in_medicine#Toxicity_Issues)has been researched, and here (http://en.wikipedia.org/wiki/Carbon_nanotube#Toxicity), and the toxicity has been shown to be quite real, and severe, with inhalation tending to produce mesothelioma similar to that of abestos, so if you're working with CNTs, portions of which become airborne, do insist on an appropriate level of protection, not only for your lungs, but for your eyes and skin, as well. Asbestos workers have to wear full body suits, and if you're smart, you'll insist on that, as well.

Or quit! I would, as my long-term health isn't worth the few extra bucks today.

[WayneFrancis]

Thanks for the link Lonewulf. Very interesting read.

[SolusLupus]

Thanks for the link Lonewulf. Very interesting read.

No problem. :D

[PetersCreek]

Moderator's note: I've moved this thread to the Science & Technology forum since this question isn't directly related to Q&A's target subjects of space or astronomy.