Fluidics

Fluidics is the application of flowing substances, such as liquids and gases, to system control and logic operations. Fluidics is analogous to electronics but uses flow and pressure instead of electrical charge. While slower, fluidics can operate in situations where electromagnetic interference prohibits the use of electronics.

Latest Research and Reviews

  • Research |

    Tuning ionic permeation across nanoscale pores is important for areas ranging from nanofluidic computing to drug delivery. Complex formation between crown ethers and dissolved metal ions is used to demonstrate graphene-based ion channels with high mechanosensitivity.

    • A. Fang
    • , K. Kroenlein
    • , D. Riccardi
    •  & A. Smolyanitsky
    Nature Materials 18, 76-81
  • Research | | open

    Light can be used to rotate micrometric turbines that usually rely on scattering to redistribute optical momentum and generate a mechanical torque. Here, 3D microfabricated light guiding structures can reroute an incoming flow of optical energy to generate a strong, uniform and controllable torque.

    • Silvio Bianchi
    • , Gaszton Vizsnyiczai
    • , Stefano Ferretti
    • , Claudio Maggi
    •  & Roberto Di Leonardo
  • Research | | open

    We visualize an electric-field-induced collective propagation of oxygen vacancies spontaneously contained in Ca-substituted BiFeO3 films, using the fact that the oxygen-rich and poor regions have different color contrasts and thus they are optically distinguishable forming a sharp boundary. We quantitatively determine the drift velocity to be of the order of 100 μm s−1 with an activation barrier of 0.79 eV indicating a significantly large ionic mobility 2 × 10−6 cm2 s−1 V−1 at a remarkably low temperature of 390 °C. Furthermore, U-shaped propagation and turbulence under backward electric field provide insights into fluidic defects in crystalline solids.

    • Ji Soo Lim
    • , Jin Hong Lee
    • , Heung-Sik Park
    • , Ran Gao
    • , Tae Yeong Koo
    • , Lane W. Martin
    • , Ramamoorthy Ramesh
    •  & Chan-Ho Yang
    NPG Asia Materials 10, 943-955
  • Research | | open

    Some animals have multimodal locomotive capabilities to survive in different environments. Inspired by nature, Chen et al. build a centimeter-scaled robot that is capable of walking on water, underwater, on land, and transiting among all three, whose ‘feet’ break water by modifying surface tension.

    • Yufeng Chen
    • , Neel Doshi
    • , Benjamin Goldberg
    • , Hongqiang Wang
    •  & Robert J. Wood
  • Research | | open

    A hybrid optofluidic technique was developed to achieve fluid transport with controllable modes and tunable strength. The switch of the optofluidic mode from buoyancy to thermocapillary convection is employed for three-dimensional manipulation. The strong confinement and torque in the convection are capable of trapping and rotating/spinning particles. The buoyancy convection provides a trapping circle to achieve collective trapping and vertical rotation/spin, while the thermocapillary convection offers a trapping lattice to achieve distributed trapping and horizontal rotation/spin. Further investigations in optofluidic arrangement, mixing, and synthesis will broaden its potential applications in the fields of lab-on-a-chip.

    • Jiapeng Zheng
    • , Xiaobo Xing
    • , Jianxin Yang
    • , Kezhang Shi
    •  & Sailing He
    NPG Asia Materials 10, 340-351

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