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Graphene Oxide Based Photoinduced Charge Transfer Label-Free Near-Infrared Fluorescent Biosensor for Dopamine
Abstract
While the super fluorescence quenching capacity of graphene and graphene oxide (GO) has been extensively employed to develop fluorescent sensors, their own unique fluorescence and its potential for chemo-/biosensing have seldom been explored. Here we report a GO-based photoinduced charge transfer (PCT) label-free near-infrared (near-IR) fluorescent biosensor for dopamine (DA). The multiple noncovalent interactions between GO and DA and the ultrafast decay at the picosecond range of the near-IR fluorescence of GO resulted in effective self-assembly of DA molecules on the surface of GO, and significant fluorescence quenching, allowing development of a PCT-based biosensor with direct readout of the near-IR fluorescence of GO for selective and sensitive detection of DA. The developed method gave a detection limit of 94 nM and a relative standard deviation of 2.0% for 11 replicate detections of 2.0 μM DA and was successfully applied to the determination of DA in biological fluids with quantitative recovery (98-115%).
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Cited by
Graphene-based smart materials
Yu, X., Cheng, H., Zhang, M., Zhao, Y., Qu, L., & Shi, G. (2017) · Nature Reviews Materials · doi:10.1038/natrevmats.2017.46 · Cited by 796
A review on graphene-based nanocomposites for electrochemical and fluorescent biosensors
Krishnan, S. K., Singh, E., Singh, P., Meyyappan, M., & Nalwa, H. S. (2019) · RSC Advances · doi:10.1039/c8ra09577a · Cited by 785
Chemical sensing with 2D materials
Anichini, C., Czepa, W., Pakulski, D., Aliprandi, A., Ciesielski, A., & Samorì, P. (2018) · Chemical Society Reviews · doi:10.1039/c8cs00417j · Cited by 756
Graphene Oxide as an Optical Biosensing Platform
Morales‐Narváez, E., & Merkoçi, A. (2012) · Advanced Materials · doi:10.1002/adma.201200373 · Cited by 508
Zhang, X.-L., Zheng, C., Guo, S.-S., Li, J., Yang, H.-H., & Chen, G. (2014) · Analytical Chemistry · doi:10.1021/ac500336f · Cited by 414
Metadata
- Authors
- Chen, J.-L., Yan, X.-P., Meng, K., & Wang, S.-F.
- Venue
- Analytical Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-10-27
- Volume
- 83
- Issue
- 22
- Pages
- 8787-8793
- ISSN
- 0003-2700 (ISSN-L)
- 1520-6882
- OpenAlex
- W2045224025
- Cited by
- 308
- References
- 0
- FWCI
- 11.31
- Type
- journal article
- Language
- en
- Open access
- closed
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- Chen, J.-L., Yan, X.-P., Meng, K., & Wang, S.-F. (2011). Graphene Oxide Based Photoinduced Charge Transfer Label-Free Near-Infrared Fluorescent Biosensor for Dopamine. Analytical Chemistry. https://doi.org/10.1021/ac2023537
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