Rapid progress toward smart membranes
has been made in the past
few decades, of which the liquid gating membranes have attracted increasing
attention because of their smart permeability. However, the current
liquid gating membranes are mainly focused on the control of transmembrane
performance, whereas the motion behaviors of such membranes that respond
to ambient gas pressure are also very important for many applications
in industry. Here, we developed a mobile liquid gating membrane system
driven by dynamic changes in ambient gas pressure that can move as
a piston depending on gas pressure. We further investigated the influences
of membrane pore sizes and gating liquid types on the motion behavior
of mobile liquid gating membranes. By incorporating with pneumatic
elastomers, the liquid gating membrane system shows bistable gas transport
properties that can serve as a smart valve. We believe the mobile
liquid gating membrane system can provide a new platform for integrating
simple control and logic function of soft actuators and robots.
Here, a piezoresistive sensor was fabricated by combining graphene and the veins of Magnolia henryi. The sensor displayed a high sensitivity, with a gauge factor of 238.09, and a wide...
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