Direction Controlled Driving of Tiny Water Drops on Bioinspired Artificial Spider Silks

Inspired by spider silk, a series of artificial spider silks with spindle-knots are fabricated. Tiny water drops (tens of picoliters) are driven with controllable direction on the fiber surfaces. The study will help the future design of smart materials and devices to drive tiny water drops in a controllable manner. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.