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PostPosted: Wed May 21, 2008 5:46 pm 
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no apparent danger except to the workers, but carbon fiber nanotubes are apparently as dangerous as asbestos.

http://www.nytimes.com/2008/05/21/science/21nano.html

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Posted: Wed May 21, 2008 5:46 pm 


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PostPosted: Wed May 21, 2008 5:55 pm 
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I saw that. My Bianchi boasts Nano Technology. No need to worry unless as you say someone is working on the frame.

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PostPosted: Thu May 22, 2008 12:18 am 
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I glad you posted this news!

Recently the relationship with my Bianchi has gotten serious. This last week we have moved from just talking and kissing to heavy petting. I was planning to have sex with her this weekend. Guess I'm going to have to break up with her tonight.

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PostPosted: Thu May 22, 2008 2:43 am 
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There is a concern at the Ferrari F1 factory that working with carbon fibre may have led to an outbreak of tuberculosis:

http://www.manipef1.com/news/2008/index.php?id=1163


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PostPosted: Tue Jun 03, 2008 4:55 am 
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Shhhhh!!!!! The price of CF frames is "somewhat" manageable :?


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PostPosted: Wed Jun 04, 2008 1:34 am 
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Hyde wrote:
Shhhhh!!!!! The price of CF frames is "somewhat" manageable :?

lovin' my Ti frame even more :wink:

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PostPosted: Wed Jun 04, 2008 3:54 am 
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Nano anything is cancerous. Among other things, I work with SiO2, gold, and some microbiological cells for laser tweezer research. Anything that small, especially on the nano scale, is cancerous.


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PostPosted: Wed Jun 04, 2008 2:54 pm 
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stigg wrote:
There is a concern at the Ferrari F1 factory that working with carbon fibre may have led to an outbreak of tuberculosis:

http://www.manipef1.com/news/2008/index.php?id=1163


Amazing how you got that from that article, they say nothing about CF.
Tuberculosis is caused by a mycobacterial infection.

I stopped drinking water after I read about all those drownings.

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PostPosted: Wed Jun 04, 2008 3:07 pm 
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iliveonnitro wrote:
Nano anything is cancerous. Among other things, I work with SiO2, gold, and some microbiological cells for laser tweezer research. Anything that small, especially on the nano scale, is cancerous.


Nonsense. We've been injecting colloidal gold into arthritic joints for 40 years in people. Many drug delivery matrices are nanoscale, and completely safe.

There is a potential to lead to lung damage upon the inhalation of any small fibrous particles, but you need a LOT of inhalation. This manifests in construction workers as silicosis from cement dust, wood workers with sawdust, miners with coal dust, asbestos etc.

Unless you work with powder all day long, this is not an issue, if you do, there are N95 masks.

This myth started when a biopsy revealed that the F1 driver Mika Salo had CF particles in his lungs and he developed lung cancer. However, there was no pathology to conclude that one had to do with the other.
He is the only F1 driver to develop lung cancer, even though his career in F1 was relatively short. Oh, small detail: he smoked like a chimney. This fact was downplayed by the F1 administration and PR because of the irony that he was sponsored by cigarette companies.

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PostPosted: Wed Jun 04, 2008 6:21 pm 
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There's a big difference between injecting nano-scale particles that have been formulated for special use, and inhaling foreign objects that are on the nano scale. Sorry for not clarifying. All the beads I work with are not in a safe, injectable form.

The idea that you need a "lot" to cause some lung damage is somewhat misleading, as there are even a lot of particles floating around on something the size of a pinhead.

Also, isn't colloidal gold more along the lines of micro-scale? I was under the impression that it is around .2-.3um, whereas the particles I'm working with (not the ones previously listed) are closer to 10nm...


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PostPosted: Wed Jun 04, 2008 8:33 pm 
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If you read the original article, the problem was with the size and shape of the CF nano particles: they are long and needle-shaped -- similar to asbestos particles -- so when the immune system reacts the macrophages are not able fully to engulf the particles and lesions form.

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PostPosted: Wed Jun 04, 2008 9:14 pm 
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iliveonnitro wrote:
There's a big difference between injecting nano-scale particles that have been formulated for special use, and inhaling foreign objects that are on the nano scale. Sorry for not clarifying. All the beads I work with are not in a safe, injectable form.

The idea that you need a "lot" to cause some lung damage is somewhat misleading, as there are even a lot of particles floating around on something the size of a pinhead.

Also, isn't colloidal gold more along the lines of micro-scale? I was under the impression that it is around .2-.3um, whereas the particles I'm working with (not the ones previously listed) are closer to 10nm...


There are lots of people working around nanoscale particles in construction that don't get sick. They will see a lot more than a bike maker. Don't forget we have lung mucosa that is evolved to deal with clearing this. Buckyballs are being used for drug delivery.


Reminds me of the scandalous lead in window blinds scare of the 90s, boy, I stopped chewing on window blinds after that one.

Colloidal gold is sub-micrometer, any bigger, and it won't form a colloid.

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