Gel electrophoresis and Raman mapping for determining the length distribution of SWCNTs

Abstract

A simple method (GEP-SRSPL) combines gel electrophoresis and simultaneous Raman scattering and photoluminescence spectroscopy for length distribution measurements of SWCNTs.

Ultrathin SWCNT Films Enabled Multi-modal Fiber Sensors

“…Given the promise of SWCNT-FibSen, its large scale production and deployment requires a fundamental understanding of the sensor processing-structure-property relationships. To this regard, we have developed a series of techniques [34,35,36,37,38] that enables the determination of the length and length distribution, diameter, molecular mass, mass density, defect density of SWCNTs in the dispersion. With assistance of these methods, the particular interesting and important questions to be answered regarding the processingstructure-property relationship of SWCNT-FibSen sensors are: how do the structures of SWCNTs in the dispersion affect the piezoresistive behavior of SWCNT-FibSen?…”

Controlling Size‐Dispersion of Single Walled Carbon Nanotubes by Interaction with Polyoxometalates Armed with a Tryptophan Tweezer

“…Although several methods for the selective synthesis of specific type of SWCNTs were devised, there are still problems of size heterogeneity. Therefore, post growth separation approaches, such as density gradient ultracentrifugation, electrophoresis, chromatography and selective extractions are currently employed to control the SWCNTs size dispersion. Building on our recent observation, we have further explored the effect of a tailored POM‐tweezer on the selective recognition of SWCNTs, in order to tune binding properties and size‐dispersion effects as a function of the organic tweezer anchored on the POM surface.…”