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A Conducting Polymer Nanojunction Sensor for Glucose Detection
Abstract
This paper presents a glucose sensor using conducting polymer/enzyme nanojunctions and demonstrates that unique features can arise when shrinking a sensor to the nanometer scale. Each nanojunction is formed by bridging a pair of nanoelectrodes separated with a small gap (20−60 nm) with polyaniline/glucose oxidase. The signal transduction mechanism of the sensor is based on the change in the nanojunction conductance as a result of glucose oxidation induced change in the polymer redox state. Due to the small size of the nanojunction sensor, the enzyme is regenerated naturally without the need of redox mediators, which consumes minimal amount of oxygen and at the same time gives very fast response (<200 ms). These features make the nanojunction sensor potentially useful for in vivo detection of glucose.
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Citations
Cited by
Electrochemical Glucose Biosensors
Wang, J. (2008) · Chemical Reviews · doi:10.1021/cr068123a · Cited by 3,498
Graphene Oxide: Intrinsic Peroxidase Catalytic Activity and Its Application to Glucose Detection
Song, Y., Qu, K., Zhao, C., Ren, J., & Qu, X. (2010) · Advanced Materials · doi:10.1002/adma.200903783 · Cited by 2,024
Hierarchical nanostructured conducting polymer hydrogel with high electrochemical activity
Pan, L., Yu, G., Zhai, D., Lee, H. R., Zhao, W., Liu, N., Wang, H., Tee, B. C.-K., Shi, Y., Cui, Y., et al. (2012) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1202636109 · Cited by 1,216
A Comprehensive Review of Glucose Biosensors Based on Nanostructured Metal-Oxides
Rahman, M. M., Ahammad, A. J. S., Jin, J.-H., Ahn, S. J., & Lee, J.-J. (2010) · Sensors · doi:10.3390/s100504855 · Cited by 762
Recent advances in polyaniline based biosensors
Dhand, C., Das, M., Datta, M., & Malhotra, B. D. (2011) · Biosensors and Bioelectronics · doi:10.1016/j.bios.2010.10.017 · Cited by 522
Metadata
- Authors
- Forzani, E. S., Zhang, H., Nagahara, L. A., Amlani, I., Tsui, R., & Tao, N.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2004-08-11
- Volume
- 4
- Issue
- 9
- Pages
- 1785-1788
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2088420689
- Cited by
- 293
- References
- 0
- FWCI
- 10.46
- Type
- journal article
- Language
- en
- Open access
- closed
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- Forzani, E. S., Zhang, H., Nagahara, L. A., Amlani, I., Tsui, R., & Tao, N. (2004). A Conducting Polymer Nanojunction Sensor for Glucose Detection. Nano Letters. https://doi.org/10.1021/nl049080l
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
