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Updated: Feb 4, 2026

Precision Milling of Carbon Nanotube Forests Using Low Pressure Scanning Electron Microscopy
Published on: February 5, 2017
Interfacing porphyrins and carbon nanotubes through mechanical links
Leire de Juan-Fernández1, Peter W Münich2, Arjun Puthiyedath2
1IMDEA Nanoscience , C/ Faraday 9, Ciudad Universitaria de Cantoblanco , 28049 Madrid , Spain .
Abstract:
We describe the synthesis of rotaxane-type species composed of macrocyclic porphyrin rings mechanically interlocked with SWCNT threads. The formation of mechanically interlocked SWCNTs (MINTs) proceeds with chiral selectivity, and was confirmed by spectroscopic and analytical techniques and adequate control experiments, and corroborated by high-resolution electron microscopy. From a thorough characterization of the MINTs through UV-vis-NIR absorption, fluorescence, Raman, and transient absorption spectroscopy we analyse in detail the electronic interactions of the porphyrins and the SWCNTs in the ground and excited states.
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