Abstract
Electrochemical logical operations utilizing biological molecules (protein or DNA), which can be used in disease diagnostics and bio-computing, have attracted great research interest. However, the existing logic operations, being realized on macroscopic electrode, are not suitable for implantable logic devices. Here, we demonstrate DNA-based logic gates with electrochemical signal as output combined with gold flower microelectrodes. The designed logic gates are of fast response, enzyme-free, and micrometer scale. They perform well in either pure solution or complex matrices, such as fetal bovine serum, suggesting great potential for in vivo applications.
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Acknowledgements
Ali Aldalbahi acknowledges the support by the Deanship of Scientific Research, College of Science Research Center at King Saud University.
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This work was supported by the National Natural Science Foundation of China (Nos. 31470960 and 21422508).
Authors Tao Wei and Min Li contributed equally to this work.
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Wei, T., Li, M., Zhang, YY. et al. Construction of DNA-based logic gates on nanostructured microelectrodes. NUCL SCI TECH 28, 35 (2017). https://doi.org/10.1007/s41365-017-0191-1
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DOI: https://doi.org/10.1007/s41365-017-0191-1