Upconversion luminescence–infrared absorption nanoprobes for the detection of prostate-specific antigen

Aiming to the ongoing challenge of accurate and sensitive detection for cancer biomarkers, antibody-functionalized NaYF 4 :Yb 3+ , Er 3+ @SiO 2 nanorods were developed as upconversion luminescence (UCL)–infrared absorption (IRA) nanoprobes. Benefiting from the shielding effect of the SiO 2 shell, an...

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