DNA origami-designed 3D phononic crystals

Abstract Moulding the flow of phononic waves in three-dimensional (3D) space plays a critical role controlling sound and thermal properties matter. To this end, 3D crystals (PnCs) have been considered gold standard because their complete bandgap (PnBG) enables omnidirectional inhibition wave propagation. Nevertheless, achieving PnBG high-frequency regime is still challenging, as attaining correspondingly demanded mesoscale consisting continuous frame networks with conventional fabrications difficult. Here, we report that DNA origami-designed-3D crystal can serve hypersonic PnC exhibiting widest PnBG. origami crystallization unprecedentedly provide such at are realizable. Furthermore, lattice symmetry be molecularly programmed to highest level hierarchy groups numbers, which facilitate widening More importantly, conformal silicification render origami-3D rigid. Overall, predict achieved origami-designed optimal geometry silica fraction; our work blueprint for design fabrication PnCs champion