Journal
ANALYTICAL CHEMISTRY
Volume 90, Issue 5, Pages 3005-3008Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.7b05374
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Funding
- Sao Paulo Research Foundation (FAPESP) [2012/22820-7, 2013/07600-3, 2015/02343-8]
- CAPES
- CNPq
- Royal Society under the Newton Advanced Fellowship scheme
- BBSRC [BB/J001694/2, BB/J001694/1] Funding Source: UKRI
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Electrochemical immunosensors offer much in the potential translation of a lab based sensing capability to a useful real world platform. In previous work we have introduced an impedance-derived electrochemical capacitance spectroscopic analysis as supportive of a reagentless means of reporting on analyte target capture at suitably prepared mixed-component redox-active, antibody-modified interfaces. Herein we directly integrate receptive aptamers into a redox charging peptide support in enabling a label-free low picomolar analytical assay for C-reactive protein with a sensitivity that significantly exceeds that attainable with an analogous antibody interface.
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