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Updated: Nov 19, 2025

Cardiac Muscle-cell Based Actuator and Self-stabilizing Biorobot - PART 1
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Cardiac Muscle-cell Based Actuator and Self-stabilizing Biorobot - PART 1

Published on: July 11, 2017

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単極ストローク,電解圧ポンプ カーボンナノチューブ糸筋

Hetao Chu1,2, Xinghao Hu1,3, Zhong Wang1,4

  • 1Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75080, USA.

Science (New York, N.Y.)
|January 29, 2021
PubMed
まとめ

研究者は炭素ナノチューブ糸から新しい単極人工筋肉を開発しました. これらの筋肉は,より広範なアプリケーションのための以前のバイポラーデザインの制限を克服して,強化されたストローク,パワー,および効率を提供します.

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関連する概念動画

Motor Unit Stimulation01:20

Motor Unit Stimulation

When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
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Generation of Action Potential in Skeletal Muscles01:24

Generation of Action Potential in Skeletal Muscles

Every cell in the body maintains a membrane potential due to an uneven distribution of positive and negative charges across its plasma membrane. The membrane potential is measured in millivolts and quantifies the difference in charge across the membrane.
Like neurons, muscle cells are also regarded as excitable due to their capacity to change in response to stimuli, primarily due to voltage-gated ion channels embedded in their plasma membranes, which get activated by alterations in the...
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Muscle Stimulation Frequency01:22

Muscle Stimulation Frequency

The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
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