• A 2.5-dimensional dynamic structural color based on nanogratings of heterogeneous materials was proposed by interweaving a pH-responsive hydrogel with IP-L photoresist.

• The nanogrid structures exhibit brilliant tuneable structural color, high sensitivity, and ultrafast recovery speeds in response to pH.

• The 4D printing-based grayscale design approach was proposed for the patterned encoding and array printing of dynamic structural colors, promoting their application in patterned printing, information encryption, and microfluidic chip sensing.

中文翻译：

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使用异质材料的基于纳米光栅的动态结构色

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  通过将 pH 响应水凝胶与 IP-L 光刻胶交织，提出了一种基于异质材料纳米格栅的 2.5 维动态结构色。

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  纳米网格结构表现出明亮的可调节结构颜色、高灵敏度和响应 pH 的超快恢复速度。

• 
  提出了基于 4D 打印的灰度设计方法，用于动态结构色的图案化编码和阵列打印，促进了它们在图案化打印、信息加密和微流控芯片传感中的应用。