Ferrofluidic Manipulator: Automatic Manipulation of Nonmagnetic Microparticles at the Air–Ferrofluid Interface

Manipulation of small-scale matter is a fundamental topic in micro and nanorobotics. Numerous magnetic robotic systems have been developed for the manipulation microparticles an ambient environment, liquid, as well on air-liquid interface. These move intrinsically or magnetically tagged objects by inducing torque force. However, most materials found nature are nonmagnetic. Here, we report ferrofluidic manipulator automatic 2-D nonmagnetic floating top ferrofluid. The system employs 8-cm-scale solenoids, which can particles deforming air-ferrofluid Using linear programming, control motion with predefined trajectory line, square, circle precision 25.1 ± 19.5, 34.4 28.4, 33.4 26.6 μm, respectively. versatile shapes under manipulation. We successfully manipulated made polyethylene, polystyrene, silicon chip, poppy sesame seeds. This article shows promising venue living nonliving at