Issue 3, 2023

Single-chirality of single-walled carbon nanotubes (SWCNTs) through chromatography and its potential biological applications

Abstract

The separation of highly pure single-chirality single-walled carbon nanotubes (SWCNTs) is challenging and also in demand due to their intrinsic physical, optical, and electronic properties. The use of single-chirality and their performance characteristics makes them a selective candidate for multifunctional applications and opens a new front in nanotube development. It has previously been reported that SWCNTs can be separated in various ways by employing direct control and post-synthesis approaches. Herein, we review the separation of single-chiralities of SWCNTs on account of simplicity and time/cost effectiveness by using gel chromatography. The most recent progress in the controlled synthesis of SWCNTs is comprehensively reviewed in terms of selective-diameter, single-chirality, and specific geometric shape. The method to achieve the single-chirality of SWCNTs is also highlighted. Besides addressing COVID-19 characteristics, epidemiology, and pathology, we also review the most recent developments in nano-biosensors for the rapid and early detection of COVID-19. Furthermore, the photothermal/bioimaging response of single-chirality is reviewed in order to enhance the cytotoxicity of drugs against cancer cells over simple carbon nanotubes (CNTs). The single-chirality allows for precise imaging (due to efficient absorption and emission) of tumors/blood vessels up to ∼10-fold higher by injecting a low dose. We hope this review stimulates further study on single-chirality controlled SWCNTs for practical applications.

Graphical abstract: Single-chirality of single-walled carbon nanotubes (SWCNTs) through chromatography and its potential biological applications

Article information

Article type
Perspective
Submitted
15 aug 2022
Accepted
27 nov 2022
First published
23 dec 2022

New J. Chem., 2023,47, 992-1022

Single-chirality of single-walled carbon nanotubes (SWCNTs) through chromatography and its potential biological applications

A. Khalid, W. Yi, S. Yoo, S. Abbas, J. Si, X. Hou and J. Hou, New J. Chem., 2023, 47, 992 DOI: 10.1039/D2NJ04056E

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