Issue 20, 2023

Advances in the ratiometric combination of quantum dots for their use in sensing applications

Abstract

Quantum dots (QDs) are a novel nanomaterial and have long piqued scientific curiosity. As a result of their nanoscale size, they exhibit a variety of chemical and physical characteristics. They are low-cost materials having good photoluminescence properties and rich surface functional groups. The use of quantum dots as a visual sensor is widely studied. Here, in this review, we summarize some commonly used quantum dots in sensing applications and how they can be used in ratiometric combinations to achieve a higher limit of detection (LOD). From metal ions to biomolecules and from explosives to organic quantum dots have been used widely as a sensor. In the later sections, some basic sensing mechanisms were also discussed. Finally, we suggest future prospects for how quantum dots could be industrially upscaled and be used to create sensor devices for use as field test kits.

Graphical abstract: Advances in the ratiometric combination of quantum dots for their use in sensing applications

Article information

Article type
Review Article
Submitted
29 iyn 2023
Accepted
06 avq 2023
First published
08 avq 2023
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2023,4, 4646-4664

Advances in the ratiometric combination of quantum dots for their use in sensing applications

S. Santra, S. Dutta and A. Adalder, Mater. Adv., 2023, 4, 4646 DOI: 10.1039/D3MA00340J

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