The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Label-free protein assay based on a nanomechanical cantilever array
Abstract
We demonstrate continuous label-free detection of two cardiac biomarker proteins (creatin kinase and myoglobin) using an array of microfabricated cantilevers functionalized with covalently anchored anti-creatin kinase and anti-myoglobin antibodies. This method allows biomarker proteins to be detected via measurement of surface stress generated by antigen–antibody molecular recognition. Reference cantilevers are used to eliminate thermal drifts, undesired chemical reactions and turbulences from injections of liquids by calculating differential deflection signals with respect to sensor cantilevers. The sensitivity achieved for myoglobin detection is below 20 µg ml −1 . Both myoglobin and creatin kinase could be detected independently using cantilevers functionalized with the corresponding antibodies, in unspecific protein background. This approach permits the use of up to seven different antigen–antibody reactions simultaneously, including an additional thermomechanical and chemical in situ reference. Applications lie in the field of early and rapid diagnosis of acute myocardial infarction.
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Antman, E. M., Tanasijevic, M. J., Thompson, B., Schactman, M., McCabe, C. H., Cannon, C. P., Fischer, G. A., Fung, A. Y., Thompson, C., Wybenga, D., et al. (1996) · New England Journal of Medicine · doi:10.1056/nejm199610313351802 · Cited by 1,749
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Waggoner, P. S., & Craighead, H. G. (2007) · Lab on a Chip · doi:10.1039/b707401h · Cited by 678
Jianrong, C., Yuqing, M., Nongyue, H., Xiaohua, W., & Sijiao, L. (2004) · Biotechnology Advances · doi:10.1016/j.biotechadv.2004.03.004 · Cited by 573
Biosensors based on nanomechanical systems
Tamayo, J., Kosaka, P. M., Ruz, J. J., San Paulo, Á., & Calleja, M. (2013) · Chem. Soc. Rev. · doi:10.1039/c2cs35293a · Cited by 391
Aponte, V. M., Finch, D. S., & Klaus, D. M. (2006) · Life Sciences · doi:10.1016/j.lfs.2006.04.007 · Cited by 51
Metadata
- Authors
- Arntz, Y., Seelig, J. D., Lang, H. P., Zhang, J., Hunziker, P., Ramseyer, J. P., Meyer, E., Hegner, M., & Gerber, C.
- Venue
- Nanotechnology
- Publisher
- IOP Publishing
- Published
- 2002-12-20
- Volume
- 14
- Issue
- 1
- Pages
- 86-90
- ISSN
- 0957-4484 (ISSN-L)
- OpenAlex
- W2099582861
- Cited by
- 409
- References
- 1
- FWCI
- 5.18
- Type
- journal article
- Language
- en
- Open access
- closed
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- Arntz, Y., Seelig, J. D., Lang, H. P., Zhang, J., Hunziker, P., Ramseyer, J. P., Meyer, E., Hegner, M., & Gerber, C. (2003). Label-free protein assay based on a nanomechanical cantilever array. Nanotechnology. https://doi.org/10.1088/0957-4484/14/1/319
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