Simple-easy electrochemical sensing mode assisted with integrative carbon-based gel electrolyte for in-situ monitoring of plant hormone indole acetic acid.

Developing a pragmatic pattern for timely learning crop growth information is significant in promoting high-quality agricultural production. Herein, an electrochemical sensing mode is designed for in-situ monitoring plant hormone (indole acetic acid as a typical example). To simplify the available electrochemical procedure with separate division of sensing interface decoration and liquid electrolyte addition, a bi-functional electrolyte, with superior quality of electron conduction and ion mass transfer, is built by exploiting the excellent conductivity of carbon-based nanostructures and the dynamic redox cycle between phenols and metal ions, endowed with the integration between conductive medium and semi-solid electrolyte. Since the one-step decoration of gel electrolyte, the sensing interface greatly simplifies the testing procedure without adding liquid electrolytes. With fascinating merits of integrative carbon-based gel electrolyte, electrochemical sensing toward in-situ tracing indole acetic acid with attractive simplicity and practicability, fulfilling the goal of acquiring information on plant growth status in timely manner.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Jiyong Shi reports financial support was provided by Jiangsu University. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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