Fluids

Fluids are amorphous substances, mostly liquids or gases, that flow under an applied shear stress and have the tendency to assume the shape of their container.

Latest Research and Reviews

  • Research | | open

    We propose an innovative skin-over-liquid system made of a periodic array of highly compliant microbumps actuated through an electrode-free electrohydrodynamic (EHD) pressure. We demonstrate that these structures are highly repeatable and are capable to swell and deflate easily under a simple thermal stimulation driven by pyroelectric effect, thus providing a challenging platform that can be actively controlled at microscale. We show the proof of principle by swelling these microbumps for stimulating mechanically live cells in vitro, thus opening the route to more reliable and easy to accomplish assays in the field of mechanobiology.

    • O. Gennari
    • , R. Rega
    • , M. Mugnano
    • , E. Oleandro
    • , L. Mecozzi
    • , V. Pagliarulo
    • , E. Mazzon
    • , A. Bramanti
    • , A. Vettoliere
    • , C. Granata
    • , P. Ferraro
    •  & S. Grilli
  • Research | | open

    Surfaces with adsorbed and arrested colloids are of interest for the engineering of advanced mesostructured materials. Here the authors demonstrate a method for producing particle-stabilised droplets with controlled surface coverage and composition.

    • Greet Dockx
    • , Steffen Geisel
    • , David G. Moore
    • , Erin Koos
    • , Andre R. Studart
    •  & Jan Vermant
  • Research |

    Liquid repellent coatings are important for several applications. Now, a coating that repels ultralow surface tension liquids and simultaneously shows robustness and transparency is reported.

    • Shuaijun Pan
    • , Rui Guo
    • , Mattias Björnmalm
    • , Joseph J. Richardson
    • , Ling Li
    • , Chang Peng
    • , Nadja Bertleff-Zieschang
    • , Weijian Xu
    • , Jianhui Jiang
    •  & Frank Caruso
    Nature Materials 17, 1040-1047
  • Research |

    Dense suspensions of hard particles readily display discontinuous shear thickening under shear but not reversible shear jamming. Here it is shown that the formation of interparticle hydrogen bonds is crucial for the shear jamming of these suspensions.

    • Nicole M. James
    • , Endao Han
    • , Ricardo Arturo Lopez de la Cruz
    • , Justin Jureller
    •  & Heinrich M. Jaeger
    Nature Materials 17, 965-970
  • Research | | open

    Bubbles tend to burst and retract into droplets. Here the authors show how a droplet can be turned into a bubble by levitating the droplets acoustically and exploiting their buckling to form gas bubbles.

    • Duyang Zang
    • , Lin Li
    • , Wenli Di
    • , Zehui Zhang
    • , Changlin Ding
    • , Zhen Chen
    • , Wei Shen
    • , Bernard P. Binks
    •  & Xingguo Geng

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