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. 2022 May 2;13:2372. doi: 10.1038/s41467-022-30124-x

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — a Schematic representation of glucose/GOx/AuCl₄^-/seed AuNP cascade reaction. Here the colored pattern is generated from the in suit grown AuNPs. GOx: glucose oxidase, AuNP: gold nanoparticle. b Pattern generated without applying audible sound (scale bar is 1.5 cm). c Time-dependent changes of circular pattern generation with applying 30 Hz of audible sound. d TEM images of AuNP solutions taken at the antinodal (top) and nodal (bottom) positions of the colored pattern at 4, 6, 8, and 11 min, respectively (scale bar is 50 nm). e Plots for the time-dependent changes in the average size with standard deviation (N = 100) of the nanoparticles obtained from the TEM images from samples at the antinodal and nodal positions of the solution, respectively.