Table 2.
Separation of SWNTs by density gradient ultracentrifugation (DGU).
| Reference | Separated object | SWNTs | Chemicals |
| [40,64,65,68,69,70,71,72,73,74,75,76] | M/S, diameter, (6,5), (7,5) | CoMoCAT, LV, HiPco, AD | SDS, SC/iodixanol in water, DNA/iodixanol in water |
| [77,78] | M/S | LV, HiPco, CoMoCAT | sodium deoxycholate (SDC)/ iodixanol in water |
| [25] | handedness, (6,4), (6,5) | CoMoCAT, AD | SC/iodixanol in water |
| [30] | handedness, (6,4), (6,5), (7,3), (9,1), (8,3), (9.2), (7,5), (8,4), (10,2), (7,6) | HiPco | SC, SDS/iodixanol in water |
| [66] | (7,5), (7,6), (10,5), (9,7) | LV, HiPco, CoMoCAT | fluorene-based polymer/chlorobenzene + tribromotoluene |
| [79] | M/S, diameter | HiPco | SDS, NaCl/iodixanol in water |
| [80] | M/S, diameter | AD | sodium taurodeoxycholic acid, SDS, SC/iodixanol in water |
| [81] | M/S | AD | SC, SDS/sucrose in water |
| [82] | (6,5) | Co-MCM-41 | SC, SDS/iodixanol in water |
| [83] | diameter | HiPco | SDS, PVP/water |
| [84,85] | diameter | AD | SC/iodixanol in water |
| [86] | DWNTs | Mixture of SWNTs, DWNTs and MWNTs | SC/iodixanol in water |
| [87] | short length (about 7.5 nm) | HiPco | PL-PEG/iodixanol in water |
| [88] | length | CoMoCAT, HiPco, LV | SDC/iodixanol in water |
| [53,67] | M/S | LV, AD, HiPco | SDS/agarose gel |
| [89] | (n, m) | CoMoCAT, HiPco, LV | SC/iodixanol in water |
| [90] | length | CoMoCAT, HiPco, LV | SDC/iodixanol in water |