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Title: Chemiresistive sensing with functionalized carbon nanotubes
Chemical sensing has a vital role in promoting security and welfare. Functionalized carbon nanotubes (CNTs) possess unique electronic, mechanical and chemical properties, rendering them as exceptional transducers for developing highly sensitive, selective and robust chemical sensors. In this Primer, we discuss the progress and challenges associated with chemiresistive sensing using functionalized CNTs, providing an introductory overview, spanning from theoretical to experimental aspects. Various covalent and non-covalent CNT functionalization strategies that contribute to enhancing the sensitivity and selectivity of chemiresistive sensors are discussed, along with their respective merits and drawbacks. Additionally, this Primer focuses on the critical facets of experimental design, including material selection, device architecture and fabrication and best practices for sensor testing. This Primer also discusses the significance of rigorous data interpretation, analysis and reporting, ensuring reproducibility and reliability. Finally, this Primer highlights the existing limitations of CNT-based chemiresistive sensors and investigates potential strategies for enhancing sensor selectivity and sensitivity that may broaden their applicability in diverse fields, from environmental monitoring to biomedical diagnostics. By emphasizing the need to understand the molecular interactions between the sensor and target analyte to improve selectivity, this Primer aims to offer a comprehensive understanding of the current state of CNT-based chemiresistive sensing.  more » « less
Award ID(s):
2207299
PAR ID:
10517319
Author(s) / Creator(s):
;
Publisher / Repository:
Springer Nature
Date Published:
Journal Name:
Nature Reviews Methods Primers
Volume:
3
Issue:
1
ISSN:
2662-8449
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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