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View Full Version : Graphene as a hair dye someday?



akurah
March 22nd, 2018, 02:18 PM
http://bigthink.com/paul-ratner/graphene-hair-dye-scientists-use-miracle-nanomaterial-to-make-non-toxic-dye

Excuse me while I geek out.

lapushka
March 22nd, 2018, 03:13 PM
Promising for my future grays! And if it stays 30 washes, that's 30 weeks for me. I will have major roots by that time. :) It is promising, though! :D

Thanks for sharing, akurah!

Beckstar
March 22nd, 2018, 03:37 PM
Promising for my future grays! And if it stays 30 washes, that's 30 weeks for me. I will have major roots by that time. :) It is promising, though! :D

Thanks for sharing, akurah!

You can touch up roots. ;)

Nightshade
March 22nd, 2018, 03:50 PM
I was reading this Anjeactually sent it to me. Super cool and the way it mitigates static is wild.

lapushka
March 22nd, 2018, 04:00 PM
You can touch up roots. ;)

Yes but if this dissipates after 30 washes, I don't want to do that. :)

JadedByEntropy
March 22nd, 2018, 07:13 PM
graphene is a conductor that can turn hair into electrodes

um no. no thank you. the static in my house would literally kill me. Plus, if its a Spray-on [aren't aerosols 'evil' in anti-chemical land?], then no, it IS small enough to enter the body and we don't know yet how toxic it is since we just invented it...want another asbestos incident? miracle in a bottle it is not. i don't want anything to do with it, and i'd love a great way to have black hair 'chemical' free...but everything is a chemical. science.

pailin
March 22nd, 2018, 09:27 PM
It sounds cool! And graphene is basically carbon, just a one molecule thick sheet. Chemically it ought to be pretty inert. And anti-static sounds great for my hair.

hobbitlocks
March 22nd, 2018, 09:46 PM
I think this is pretty cool! The article I read mentioned that theyíve also developed it in brown, although the picture was only black. That would be really awesome, since itís so difficult (impossible?) to get brown without red undertones without conventional hair dye.

akurah
March 23rd, 2018, 01:24 AM
graphene is a conductor that can turn hair into electrodes

um no. no thank you. the static in my house would literally kill me. Plus, if its a Spray-on [aren't aerosols 'evil' in anti-chemical land?], then no, it IS small enough to enter the body and we don't know yet how toxic it is since we just invented it...want another asbestos incident? miracle in a bottle it is not. i don't want anything to do with it, and i'd love a great way to have black hair 'chemical' free...but everything is a chemical. science.

Graphene is not a new invention...

HaMalka
March 23rd, 2018, 10:11 AM
graphene is a conductor that can turn hair into electrodes

um no. no thank you. the static in my house would literally kill me. Plus, if its a Spray-on [aren't aerosols 'evil' in anti-chemical land?], then no, it IS small enough to enter the body and we don't know yet how toxic it is since we just invented it...want another asbestos incident? miracle in a bottle it is not. i don't want anything to do with it, and i'd love a great way to have black hair 'chemical' free...but everything is a chemical. science.

According to the actual study the dye can be sprayed or brushed on. "This is a much simpler and safer formulation than organic hair dyes because it does not contain any toxic molecular or volatile components. GO- and r-GO-based dyes can be formulated in water without hazardous ingredients or solvents and can be applied to hair by spraying or brushing to yield various shades of brown to black colors."
They do not claim it is chemical free. They claim it does not chemically change your hair permanently. They say "Graphene-based hair dyes can be formulated without hazardous additives or volatile components and do not impart permanent chemical and structural changes to hair. Therefore, they should be safer to use than molecular dyes."

DOI: https://doi.org/10.1016/j.chempr.2018.02.021

MidnightMoon
March 23rd, 2018, 10:24 AM
I'd love a black that's easy to apply, not damaging to hair, and doesn't fade... all the safe alternatives right now look awesome the first week and then the subtle brown comes out again... jet black and longer lasting would be great.

Beeboo123
March 25th, 2018, 03:14 PM
But but the risks involved... graphene is toxic. =[

https://particleandfibretoxicology.biomedcentral.com/articles/10.1186/s12989-016-0168-y

Reyesuela
March 25th, 2018, 07:57 PM
But but the risks involved... graphene is toxic. =[

https://particleandfibretoxicology.biomedcentral.com/articles/10.1186/s12989-016-0168-y

Itís not a nanoparticle. Thatís the whole point.

This wonít be toxic like nanoparticles, but it could be a lung issue like silica or asbestos. Iíd let other people be guinea pigs.

But there are tons tons of women who get Brazilian blowouts, and thatís a definite carcinogen, soooooo...

HaMalka
March 26th, 2018, 06:46 PM
I found SDS sheets for the ingredients for the dye mentioned in the experiment. The chitosan and the ascorbic acid are not considered toxic for human use in the concentrations used. The chitosan has a lot of long term data missing so it may be harmful over a long time or after repeated exposure. The ascorbic acid is not known whether or not it has chronic effects. The GO sheets do not require respiratory protection when handling them but there is no long term data for GO sheets and there are no known acute toxic aspects. R-GO is not considered hazardous and no respiratory protection is required. For both r-Go and GO you are supposed to avoid the formation of dust. However as the dye is a gel I do not think that is a concern for users. None of these materials are considered carcinogens.

According to the main article “Compared with molecules or nanoparticles, GO- and graphene-based sheets with large micrometer-sized lateral dimensions are much less likely to penetrate the dermal barrier,41–43 especially when they are in a polymer matrix such as the chitosan gel used in this work. GO-derived coatings were applied to enhance the function of textiles, which did not cause irritation in rabbit skin.44”.

Nowhere did I find long term effects as Graphene is a relatively new material. The theory was first explored in 1947 and wasn’t really practically available until the 2000’s.

r-GO SDS:
https://www.sigmaaldrich.com/MSDS/MSDS/DisplayMSDSPage.do?country=US&language=en&productNumber=777684&brand=ALDRICH&PageToGoToURL=https%3A%2F%2Fwww.sigmaaldrich.com%2 Fcatalog%2Fproduct%2Faldrich%2F777684%3Flang%3Den
GO SDS:
https://www.sigmaaldrich.com/MSDS/MSDS/DisplayMSDSPage.do?country=US&language=en&productNumber=763713&brand=ALDRICH&PageToGoToURL=https%3A%2F%2Fwww.sigmaaldrich.com%2 Fcatalog%2Fproduct%2Faldrich%2F763713%3Flang%3Den
Chitosan SDS:
https://www.sigmaaldrich.com/MSDS/MSDS/DisplayMSDSPage.do?country=US&language=en&productNumber=419419&brand=ALDRICH&PageToGoToURL=https%3A%2F%2Fwww.sigmaaldrich.com%2 Fcatalog%2Fsearch%3Fterm%3Dchitosan%26interface%3D All%26N%3D0%2B%26mode%3Dpartialmax%26lang%3Den%26r egion%3DUS%26focus%3Dproduct
Ascorbic Acid SDS:
https://www.mccsd.net/cms/lib/NY02208580/Centricity/Shared/Material%20Safety%20Data%20Sheets%20_MSDS_/MSDS%20Sheets_Ascorbic_Acid_Solution_5pct_68_30.pd f