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. Author manuscript; available in PMC: 2022 Oct 1.
Published in final edited form as: Chem Eng J. 2021 Oct 1;421(1):10.1016/j.cej.2021.129816. doi: 10.1016/j.cej.2021.129816

Fig. 6.

Fig. 6.

(a–b): Raman spectra of NPs with a diameter of 600 nm; (c) spectra of NPs with 300 nm diameter prepared on gold slide surface; (d) Raman spectra of NPs with 100 nm of size [99] (reproduced with permission from Elsevier).