Janus structures have unique properties due to their distinct functionalities on opposing faces, but have yet to be realized with flowing liquids. We demonstrate such Janus liquids with a customizable distribution of nanoparticles (NPs) throughout their structures by joining two aqueous streams of NP dispersions in an apolar liquid. Using this anisotropic integration platform, different magnetic, conductive, or non-responsive NPs can be spatially confined to opposite sides of the original interface using magnetic graphene oxide (mGO)/GO, Ti₃C₂T_x/GO, or GO suspensions. The resultant Janus liquids can be used as templates for versatile, responsive, and mechanically robust aerogels suitable for piezoresistive sensing, human motion monitoring, and electromagnetic interference (EMI) shielding with a tuned absorption mechanism. The EMI shields outperform their current counterparts in terms of wave absorption, i.e., SE_T ≈ 51 dB, SE_R ≈ 0.4 dB, and A = 0.91, due to their high porosity ranging from micro- to macro-scales along with non-interfering magnetic and conductive networks imparted by the Janus architecture.

由于两面性结构在相对面上具有独特的功能，因此具有独特的性质，但尚未通过流动液体来实现。我们通过将两股纳米颗粒分散体的水流加入非极性液体中，证明了这种 Janus 液体在其整个结构中具有可定制的纳米颗粒 (NP) 分布。_{使用这种各向异性集成平台，可以使用磁性氧化石墨烯 (mGO)/GO、Ti 3} C ₂ T _x /GO 或 GO 悬浮液将不同的磁性、导电或非响应 NP 在空间上限制在原始界面的相对两侧。所得的 Janus 液体可用作多功能、响应灵敏且机械坚固的气凝胶的模板，适用于压阻传感、人体运动监测和具有调谐吸收机制的电磁干扰 (EMI) 屏蔽。EMI 屏蔽在波吸收方面优于当前的同类产品，即 SE _T  ≈ 51 dB、SE _R  ≈ 0.4 dB 和 A = 0.91，因为它们具有从微观到宏观尺度的高孔隙率以及非干扰性Janus 架构赋予的磁性和传导网络。