Hi all,
There has been an explosion of published methods on how to isolate specific SWCNT chiralities, but has this been translated into commercial products?
Do you know of any companies that sell isolated SWCNT chiral species based on these isolation procedures?
(Full disclosure. I tried some of the published isolation protocols. They don't work for me).
Dear Steingrimur,
According to the publication by Sigma-Aldrich the answer is NOT YET:
Conclusion Despite early excitement about SWNTs materials and the extraordinary amount of research inspired by their discovery, to date commercial exploitation of the technology has been limited. However, momentum is now building, driven by substantial recent progress in several fundamental areas. We can expect to see a dramatic expansion of applications as the barriers are now being overcome. Listed below are CoMoCAT® high purity SWNTs manufactured by SouthWest
NanoTechnologies (SWeNT®), Inc. and available in research quantities exclusively from Aldrich® Materials Science. - See more at: http://www.sigmaaldrich.com/materials-science/nanomaterials/comocat-carbon-nanotubes.html#sthash.8hd7tQbq.dpuf
To view the full publication, please use the following link:
http://www.sigmaaldrich.com/materials-science/nanomaterials/comocat-carbon-nanotubes.html
Hoping this will add some thing to the discussion on this topic,
Rafik
In the following paper, a simple and effective method for the large-scale chirality separation of SWCNTs using a single-surfactant multicolumn gel chromatography method utilizing one surfactant and a series of vertically connected gel columns.
Large-scale single-chirality separation of single-wall carbon nanotubes by simple gel chromatography
Nature CommunicationsVolume:2,Article number:309DOI:doi:10.1038/ncomms1313.
What is your isolation procedures ?
Hi Rafik, thanks for the links. I got some samples from Southwest Nanotech some years ago, but last year they filed for bankruptcy:
http://newsok.com/article/5462649
Hi Shen, I am not challenging the validity of large scale purification of chiral CNT species. There are a number of researchers that have isolated different CNT species.
I am only asking if any companies have commercialized these products.
The closest we have tried is with Nanointegris:
http://www.nanointegris.com/en/about-our-products
Although I recently heard that there's a startup company in Dresden, Germany working on cloning of SWCNT with high chirality selectivity.
Hi Raul, thanks for the info. Hopefully more CNT chiralities will be commercialized and available.
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