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(actuator)
4,381 results
  • Handheld volumetric manual compression-based quantitative micro-elastography. [Journal Article]
    J Biophotonics 2020Fang Q, Frewer L, … Kennedy BF
  • Compression optical coherence elastography typically requires a mechanical actuator to impart a controlled uniform strain to the sample. However, for handheld scanning, this adds complexity to the design of the probe and the actuator stroke limits the amount of strain that can be applied. In this work, we present a new volumetric imaging approach that utilises bidirectional manual compression via…
  • Review: Electrochemical DNA sensing - Principles, commercial systems, and applications. [Review]
    Biosens Bioelectron 2020; 154:112069Trotter M, Borst N, … von Stetten F
  • Driven by the vision of robust and portable, yet sensitive DNA detection systems for point-of-need applications, the development of electrochemical DNA sensing principles has been of high interest. Many different principles have been developed and these are regularly reviewed. However, the maturity of electrochemical principles and their ability to produce competitive real-world applications is r…
  • A Dual pH-Responsive Hydrogel Actuator for Lipophilic Drug Delivery. [Journal Article]
    ACS Appl Mater Interfaces 2020Han Z, Wang P, … Yang W
  • As one of the most promising drug delivery carriers, hydrogels have received considerable attention in recent years. Many previous efforts focused on diffusion-controlled release which allows hydrogels to load and release drugs in vitro and/or in vivo. However, it hardly applies to lipophilic drug delivery due to their poor compatibility with hydrogels. Herein, we propose a novel method for lipop…
  • Multipolar spatial electric field modulation for freeform electroactive hydrogel actuation. [Journal Article]
    Sci Rep 2020; 10(1):2482Choi MY, Shin Y, … Na JH
  • Electroactive hydrogels that exhibit large deformation in response to an electric field have received significant attention as a potential actuating material for soft actuators and artificial muscle. However, their mechanical actuation has been limited in simple bending or folding due to uniform electric field modulation. To implement complex movements, a pre-program, such as a hinge and a multil…
  • Bioreactor With Electrically Deformable Curved Membranes for Mechanical Stimulation of Cell Cultures. [Journal Article]
    Front Bioeng Biotechnol 2020; 8:22Costa J, Ghilardi M, … Carpi F
  • Physiologically relevant in vitro models of stretchable biological tissues, such as muscle, lung, cardiac and gastro-intestinal tissues, should mimic the mechanical cues which cells are exposed to in their dynamic microenvironment in vivo. In particular, in order to mimic the mechanical stimulation of tissues in a physiologically relevant manner, cell stretching is often desirable on surfaces wit…
  • 3DOF Ultrasonic Motor With Two Piezoelectric Rings. [Journal Article]
    Sensors (Basel) 2020; 20(3)Jūrėnas V, Kazokaitis G, Mažeika D
  • A novel design of a multiple degrees of freedom (multi-DOF) piezoelectric ultrasonic motor (USM) is presented in the paper. The main idea of the motor design is to combine the magnetic sphere type rotor and two oppositely placed ring-shaped piezoelectric actuators into one mechanism. Such a structure increases impact force and allows rotation of the sphere with higher torque. The main purpose of …
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