An embedded 3D printing technique — which uses an alginate–polyacrylamide hydrogel supporting matrix and a conductive silver–hydrogel ink — can be used to fabricate hydrogel electronic devices containing various different embedded circuits.

中文翻译：

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水凝胶电子产品的 3D 打印

嵌入式 3D 打印技术——使用藻酸盐-聚丙烯酰胺水凝胶支撑基质和导电银-水凝胶墨水——可用于制造包含各种不同嵌入式电路的水凝胶电子设备。