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DOI: 10.1002/elps.201900169
The cover picture shows the accelerated capture of copper ions by l‐cysteine modificated interdigital electrode. Microflows induced by AC electrothermal effect convect copper ions toward the electrodes to enhance the capture of target analytes by L‐cysteine probes. By monitoring the interfacial capacitance of the sensor, this sensor reaches a limit of detection at femtomolar...
Copper is an indispensable trace element for human health. Too much or too little intake of copper ion (Cu2+) can lead to its own adverse health conditions. Therefore, detection of Cu2+ is always of vital importance. In this work, a simple sensor was developed for rapid detection of trace Cu2+ in water, in which L‐cysteine (Cys) as a molecular probe was self‐assembled on a gold interdigital electrode...
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