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. 2017 Mar 27;12:2307–2314. doi: 10.2147/IJN.S128172

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© 2017 Zhang et al. This work is published and licensed by Dove Medical Press Limited

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(A) Scheme of Au nanohole substrate with prism coupling for surface plasmon-enhanced fluorescence for the sensing of PSA, upon the molecules binding around Au nanohole. (B) UV–vis transmission spectra of Au nanohole array measured in (1) water and (2) air, and (3) simulated transmission spectra of Au nanohole array in water.

Abbreviations: PSA, prostate-specific antigen; PSP, propagating surface plasmon; LSP, localized surface plasmon; c-Ab, capture antibody; d-Ab, detection antibody; UV–vis, ultraviolet–visible.