Bionic microchannels for step lifting transpiration

Highlights Various cross-sectional bionic microchannels were fabricated by P µ SL based 3D printing technique. Strong precursor effects are induced by sharp corners of those bionic microchannels. Ultra-long distance antigravity step lifting of water is realized by employing bionic microchannels. Mimicked transpiration based on step lifting of bionic microchannels is well achieved.