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PreprintCC BYChemRxiv

Temporally decoupled electrochemiluminescence breaks the sensitivity–portability tradeoff in water toxicity sensing

  • Chuan Huang1,2
  • Dan Han3
  • Hong Yang4,5
  • Kaiqing Wu1,2
  • Yanfei Shen
  • Rong Jin1,2
  • Yuanjian Zhang1,2
5 affiliations
  1. 1Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Medical School, Southeast University
  2. 2Southeast University
  3. 3China Institute of Regenerative Medicine and Laboratory Technology Innovation, Qingdao University
  4. 4School of Physical Sciences
  5. 5Great Bay University
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Abstract

Multiple technologies have been developed to reconcile the trade-off between sensitivity and portability, which is a persistent fundamental challenge in chemical sensing. Among them, electrochemiluminescence (ECL) has the advantages of simple device configuration and outstanding sensitivity based on the transduction of electrochemical signals into optical readouts. However, this is based on multi-step interfacial electron transfer, wherein the concomitant efficiency losses and areadependent signal intensity inherently constitute the primary limitations. Herein, a novel photochargeable wireless ECL (PC-Wireless-ECL) system is established based on a bifunctional carbon nitride (CN). This strategy boosts the ECL signal intensity by eliminating the dependence on the electrode dimensions and decoupling the excitation and emission processes temporally. By constructing portable bifunctional CN vials coupled with a miniaturized light intensity sensor, this system revolutionizes the conventional ECL measurement paradigm and realizes on-site, rapid, and highly sensitive screening of water toxicity, thereby offering a new strategy for next-generation in-field analytical technologies.

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Cite

BibTeXRIS
BibTeX
@misc{huang2026temporally,
  title = {{Temporally decoupled electrochemiluminescence breaks the sensitivity–portability tradeoff in water toxicity sensing}},
  author = {Chuan Huang and Dan Han and Hong Yang and Kaiqing Wu and Yanfei Shen and Rong Jin and Yuanjian Zhang},
  howpublished = {ChemRxiv},
  year = {2026},
  month = sep,
  doi = {10.26434/chemrxiv.15008537/v1},
  url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15008537/v1},
  note = {CC BY},
}
RIS
TY  - UNPB
TI  - Temporally decoupled electrochemiluminescence breaks the sensitivity–portability tradeoff in water toxicity sensing
AU  - Chuan Huang
AU  - Dan Han
AU  - Hong Yang
AU  - Kaiqing Wu
AU  - Yanfei Shen
AU  - Rong Jin
AU  - Yuanjian Zhang
PY  - 2026
DA  - 2026/09/09
PB  - ChemRxiv
DO  - 10.26434/chemrxiv.15008537/v1
UR  - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15008537/v1
AB  - Multiple technologies have been developed to reconcile the trade-off between sensitivity and portability, which is a persistent fundamental challenge in chemical sensing. Among them, electrochemiluminescence (ECL) has the advantages of simple device configuration and outstanding sensitivity based on the transduction of electrochemical signals into optical readouts. However, this is based on multi-step interfacial electron transfer, wherein the concomitant efficiency losses and areadependent signal intensity inherently constitute the primary limitations. Herein, a novel photochargeable wireless ECL (PC-Wireless-ECL) system is established based on a bifunctional carbon nitride (CN). This strategy boosts the ECL signal intensity by eliminating the dependence on the electrode dimensions and decoupling the excitation and emission processes temporally. By constructing portable bifunctional CN vials coupled with a miniaturized light intensity sensor, this system revolutionizes the conventional ECL measurement paradigm and realizes on-site, rapid, and highly sensitive screening of water toxicity, thereby offering a new strategy for next-generation in-field analytical technologies.
ER  -