Enrichment of (8,4) Single-Walled Carbon Nanotubes Through Coextraction with Heparin
Cited 21 times inCited 21 times in
- Enrichment of (8,4) Single-Walled Carbon Nanotubes Through Coextraction with Heparin
- Yan, Liang Yu; Li, Weifeng; Fan, Xiao Feng; Wei, Li; Chen, Yuan; Kuo, Jer-Lai; Li, Lain-Jong; Kwak, Sang Kyu; Mu, Yuguang; Chan-Park, M. B.
- Carbon nanotubes; Chirallty; Heparin sodium salt; Selectivity
- Issue Date
- WILEY-V C H VERLAG GMBH
- SMALL, v.6, no.1, pp.110 - 118
- Heparin sodium salt is investigated as a dispersant for dispersing singlewalled carbon nanotubes (SWNTs). Photoluminescence excitation (PLE) spectroscopy is used for identification and abundance estimation of the chiral species. It is found that heparin sodium salt preferentially disperses larger-diameter Hipeo SWNTs. When used to disperse CoMoCAT nanotube samples, heparin has a strong preference for (8,4) tubes, which have larger diameter than the predominant (6,5) in pristine CoMoCA T samples. PLE intensity due to (8,4) tubes increases from 7% to 60% of the total after threefold extractions. Computer modeling verifies that the complex of (8,4) SWNTs and heparin has the lowest binding energy amongst the four semiconducting species present in CoMoCA T. Network field-effect transistors are successfully made with CoMoCAT/heparin and CoMoCAT/sodium dodecylbenzene sulfonate (SDBS)-heparin (x3), confirming the easy removability of heparin.
- ; Go to Link
- Appears in Collections:
- ECHE_Journal Papers
- Files in This Item:
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.