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. 2020 Mar 16;10(3):25. doi: 10.3390/bios10030025

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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(a) SERS spectra of 4MBA on the Fe₃O₄@TiO₂@Au nanocomposites synthesized with different volumes of Au seeds; and (b) columnar distribution of the SERS intensity at 1078 cm⁻¹; (c) SERS spectral change of 4MBA on Fe₃O₄@TiO₂@Au nanocomposites synthesized with 100 mL of Au seed soluiton during UV light irradiation; (d) Photocatalytic degradation of 4MBA (exampled by I/I₀ of SERS peak at 1078 cm⁻¹) in aqueous suspension of Au, Fe₃O₄@TiO₂, and various Fe₃O₄@TiO₂@Au nanocomposites with and without UV irradiation.