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. 2021 Mar 5;16:1901–1911. doi: 10.2147/IJN.S293042

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© 2021 Yu et al.

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SERS spectra of 4-MBA for (A) Aβ-amyloid and (B) Tau-181 with different concentration and the calibration curves of the peak intensity at 1585 cm⁻¹ changed with the lg value of protein concentration of (C) Aβ-amyloid and (D) Tau-181.