Flexible pressure sensors (FPS) have shown wide applications in artificial robotics, wearable devices, electronic skins, and biomedical systems; however, complicated procedures like micromachining and micromolding are often involved to achieve high performance of the sensor. In this work, a novel capacitive FPS was prepared by using silver nanowire (AgNW)-paper substrates as electrodes and polydimethylsiloxane (PDMS) as dielectrics, and results revealed that the sensitivity and dynamic range of the as-prepared sensor were 1.05 kPa
−1
and 1 Pa to 2 kPa, respectively, which were comparable to the state-of-the-art ones; practical application measurements further indicated that the capacitive FPS was capable of detecting bending, finger tap, and human speech as well as identifying object profile; therefore, it shows good potential for applying in artificial skin and wearable devices.
An interface displacement model for critical wetting in three dimensions with shortrange forces is studied using Monte Carlo methods. Both hard-and soft-wall potentials are considered and it is shown that the critical behaviour is independent of the detailed form of the wall potential. On the other hand, linear renormalization group treatments of the model are found t o yield the correct result only for certain choices of the wall potential.Wetting belongs to a class of interfacial phase transitions associated with the unbinding (or delocalization) of (two) interfaces or domain walls. This view of the wetting transition has been developed by Lipowsky, Kroll and Zia [l] and by Brezin, Halperin and Leibler [2] who considered an effective Hamiltonian
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