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

Fig. 5. Preparation of TA-AuNP-patterned hydrogel and its application to region-specific cell growth.

Fig. 5

a Schematic representation of sound assisted patterned hydrogel formation and selective cell growth. GOx: glucose oxidase, TA-AuNP: thioctic acid-functionalized gold nanoparticle, PEG-DA: poly(ethylene glycol)-diacrylate. b Time-dependent images during the formation of a concentric ring pattern obtained by applying 40 Hz of audible sound and preparation of patterned hydrogel (scale bar is 10 mm). c A photograph of the patterned hydrogel (scale bar is 10 mm). d HeLa cell growth pattern on the hydrogel (scale bar is 5 mm). e 3D fluorescence intensity plot of the region-specific cell growth pattern.