2024
DOI: 10.21203/rs.3.rs-4893497/v1
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Dual Metal-Organic-Frameworks Mediated Resonance Energy Transfer for Ultrasensitive Electrochemiluminescence Immunosensing

Chun Wang,
Gaoxing Cheng,
Guixin Li
et al.

Abstract: In this paper, an electrochemiluminescent (ECL) biosensor for carcinoembryonic antigen (CEA) based on electrochemiluminescence resonance energy transfer (ECL-RET) was designed. Tris(2,2′-bipyridine)ruthenium(II) (Ru(bpy)32+) was used as an energy donor for ECL-RET, and an Au nanoparticle-modified MOF framework (AuCoFe MOF) was used as an energy receptor for ECL-RET. The ECL emission spectra of Ru(bpy)32+ were in the range of 550 nm to 680 nm, and a zinc oxalate MOF encapsulating Ru(bpy)32+ (Ru@ Zn oxalate MOF)… Show more

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