articleAnalytical ChemistryOct 25, 2023Closed access

Cation Exchange Reaction-Mediated Photothermal and Polarity-Switchable Photoelectrochemical Dual-Readout Biosensor

LLLiling LuRZRuijin ZengQLQianyun LinXHXue HuangDTDianping Tang

Fuzhou University

PubMed
Indexed incrossrefpubmed

Abstract

Cation exchange (CE) is a burgeoning method for controlled crystal synthesis; however, its applications in bioanalysis are still in their infancy. Herein, we explored the transformation of ZnIn2S4 in properties after the CE reaction with Cu2+ ions; furthermore, the discrepancy was employed to design a dual-readout detection system of photothermal and polarity-switchable photoelectrochemical (PEC) immunoassays to realize reliable detection of carcinoembryonic antigen (CEA). In the presence of CEA, the CuO nanoparticles (CuO NPs) employed as dual-signal response probes would bond to the microplates and be acidolyzed by HCl to release Cu2+, which could replace Zn2+ and In3+ via the CE reaction. After the CE…

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206
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FWCI
29.88
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100%
References
34
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Authors

5

Topics & keywords

Topics
Keywords
  • Chemistry
  • Polarity (international relations)
  • Biosensor
  • Photothermal therapy
  • Dual (grammatical number)
  • Photoelectrochemistry
  • Nanotechnology
  • Electrode
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