Biology; Chemistry and chemical biology; Chemical and biological engineering; Biomedical engineering
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Conductive cable fibers with insulating surface prepared by coaxial electrospinning of multi-walled nanotubes and cellulose, M. Miyauchi, J. Miao, T. J. Simmons, J.-W. Lee, T. V. Doherty, J. S. Dordick, R. J. Linhardt, Biomacromolecules, 11, 2440–2445, 2010.
Core−sheath multiwalled carbon nanotube (MWNT)−cellulose fibers of diameters from several hundreds of nanometers to several micrometers were prepared by coaxial electrospinning from a nonvolatile, nonflammable ionic liquid (IL) solvent, 1-methyl-3-methylimidazolium acetate ([EMIM][Ac]). MWNTs were dispersed in IL to form a gel solution. This gel core solution was electrospun surrounded by a sheath solution of cellulose dissolved in the same IL. Electrospun fibers were collected in a coagulation bath containing ethanol−water to remove the IL completely and dried to form core−sheath MWNT−cellulose fibers having a cable structure with a conductive core and insulating sheath. Enzymatic treatment of a portion of a mat of these fibers with cellulase selectively removed the cellulose sheath exposing the MWNT core for connection to an electrode. These MWNT−cellulose fiber mats demonstrated excellent conductivity because of a conductive pathway of bundled MWNTs. Fiber mat conductivity increased with increasing ratio of MWNT in the fibers with a maximum conductivity of 10.7 S/m obtained at 45 wt % MWNT loading.;
Biomacromolecules, 11, 2440–2445; Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
The Linhardt Research Labs.; The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS);
American Chemical Society (ACS)
The Linhardt Research Labs Online Collection; Rensselaer Polytechnic Institute, Troy, NY; https://harc.rpi.edu/;