Journal
ACS SENSORS
Volume 4, Issue 7, Pages 1732-1748Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssensors.9b00514
Keywords
carbon quantum dots; graphene quantum dots; optical property; luminescence; sensing
Funding
- Natural Science Foundation of China [51173087]
- Qingdao Innovation Leading Expert Program
- Taishan Scholars Program
- Australian Research Council Centre of Excellence in Convergent Bio-Nano Science and Technology [CE140100036]
- ARC Australian Laureate Fellowship [FL150100060]
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Carbon and graphene quantum dots (CQDs and GQDs), known as zero-dimensional (0D) nanomaterials, have been attracting increasing attention in sensing and bioimaging. Their unique electronic, fluorescent, photo luminescent, chemiluminescent, and electrochemiluminescent properties are what gives them potential in sensing. In this Review, we summarize the basic knowledge on CQDs and GQDs before focusing on their application to sensing thus far followed by a discussion of future directions for research into CQDs- and GQD-based nanomaterials in sensing. With regard to the latter, the authors suggest that with the potential of these nanomaterials in sensing more research is needed on understanding their optical properties and why the synthetic methods influence their properties so much, into methods of surface functionalization that provide greater selectivity in sensing and into new sensing concepts that utilize the virtues of these nanomaterials to give us new or better sensors that could not be achieved in other ways.
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