Polyethylenimine-coated Fe₃O₄ nanoparticles effectively quench fluorescent DNA, which can be developed as a novel platform for protein detection

Long Ma,Nana Sun,Jinyan Zhang,Chunhao Tu,Xiuqi Cao,Demin Duan,Aipo Diao,Shuli Man

Nanoscale（2017）

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摘要

We report a novel assembly of polyethyleneimine (PEI)-coated Fe3O4 nanoparticles (NPs) with single-stranded DNA (ssDNA), and the fluorescence of the dye labeled in the DNA is remarkably quenched.

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Polyethylenimine-coated Fe3O4 nanoparticles effectively quench fluorescent DNA, which can be developed as a novel platform for protein detection

Polyethylenimine-coated Fe₃O₄ nanoparticles effectively quench fluorescent DNA, which can be developed as a novel platform for protein detection