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

Fig. 4. Audible sound mediated spatiotemporal control over glucose/GOx/TA-AuNP cascade reaction.

Fig. 4

a Schematic representation of glucose/GOx/TA-AuNP cascade reaction. Here the color pattern is generated from the blue-colored aggregates of TA-AuNPs. GOx: glucose oxidase, TA-AuNP: thioctic acid-functionalized gold nanoparticle. b Random shaped pattern generated without applying audible sound (scale bar is 1.5 cm). c Time-dependent changes of a concentric ring pattern generated with applying 30 Hz of audible sound. d Time-dependent TEM images of TA-AuNP solution taken at the antinodal (top) and nodal (bottom) positions of the colored pattern at 30, 70, 130, and 210 s, respectively (scale bar is 200 nm).