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Gold Nanoparticle-Graphite-Like C3N4Nanosheet Nanohybrids Used for Electrochemiluminescent Immunosensor
Abstract
Two-dimensional graphite-like carbon nitride nanosheets (g-C3N4 NSs) were hybridized with gold nanoparticles (Au NPs) to construct an electrochemiluminescence (ECL) immunosensor. The prepared Au NP-functionalized g-C3N4 NS nanohybrids (Au-g-C3N4 NHs) exhibit strong and stable cathodic ECL activity compared to g-C3N4 NSs due to the important roles of Au NPs in trapping and storing the electrons from the conduction band of g-C3N4 NSs, as well as preventing high energy electron-induced passivation of g-C3N4 NSs. On the basis of the improved ECL stability and ECL peak intensity of the Au-g-C3N4 NHs, a novel ECL immunosensor was developed to detect carcinoembryonic antigen (CEA) as a model target analyte. The ECL immunosensor has a sensitive response to CEA in a linear range of 0.02-80 ng mL(-1) with a detection limit of 6.8 pg mL(-1). Additionally, the proposed immunosensor shows high specificity, good reproducibility, and long-term stability.
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Cites
Yang, S., Feng, X., Wang, X., & Müllen, K. (2011) · Angewandte Chemie International Edition · doi:10.1002/anie.201100170 · Cited by 1,109
Sadhukhan, M., & Barman, S. (2013) · Journal of Materials Chemistry A · doi:10.1039/c3ta01523h · Cited by 144
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Wang, X., Hong, M., Zhang, F., Zhuang, Z., & Yu, Y. (2016) · ACS Sustainable Chemistry & Engineering · doi:10.1021/acssuschemeng.6b01024 · Cited by 258
Perovskite materials advance the potent sensor exploration
Ouyang, R., Shen, H., Feng, M., Huang, Y., Ma, Y., Zhao, Y., Liu, X., & Miao, Y. (2024) · Journal of the Chinese Chemical Society · doi:10.1002/jccs.202400060 · Cited by 6
Metadata
- Authors
- Chen, L., Zeng, X., Si, P., Chen, Y., Chi, Y., Kim, D.-H., & Chen, G.
- Venue
- Analytical Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-04-17
- Volume
- 86
- Issue
- 9
- Pages
- 4188-4195
- ISSN
- 0003-2700 (ISSN-L)
- 1520-6882
- OpenAlex
- W2329826869
- Cited by
- 421
- References
- 2
- FWCI
- 15.82
- Type
- journal article
- Language
- en
- Open access
- closed
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- Chen, L., Zeng, X., Si, P., Chen, Y., Chi, Y., Kim, D.-H., & Chen, G. (2014). Gold Nanoparticle-Graphite-Like C3N4Nanosheet Nanohybrids Used for Electrochemiluminescent Immunosensor. Analytical Chemistry. https://doi.org/10.1021/ac403635f
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