Abstract
As the total annual production of carbon nanotubes is expected to increase, this highlights an ever-increasing need to have a tool for the detection of nanotubes. By identifying predefined criteria for the detection platform, it is evident that the current general nanoparticle sensing technologies will not meet several important requirements like high sensitivity and selectivity. We therefore explore other techniques (based on microscopic and spectroscopic technologies) that have the potential to meet more stringent detection requirements. Although we have mainly focused on the features of the analytical techniques concerned, other issues that would determine their suitability for routine measurements (such as ease of calibration and sampling issues) are also summarized. It is clear from our review that no ‘perfect’ technique exists and ways to improve current technologies or develop/explore future technology for CNT detection are still very much needed.
Acknowledgements
This work is financed under MET 3.1 (Measurement for Emerging Technologies), a DTI (Department of Trade and Industry) supported programme. Authors would like to thank Dr Ian Gilmore for helpful comments and encouragement.