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Electro-mechanical Systems

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Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...

Mechanically-gated Ion Channels

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Mechanically-gated ion channels are proteins found in eukaryotic and prokaryotic cell membranes that open in response to mechanical stress. Tension, compression, swelling, and shear stress can alter the conformation of the protein, opening a transmembrane channel that allows the passage of ions for signal transmission. In eukaryotes, mechanically-gated channels are distributed in several regions like the neurons, lungs, skin, bladder, and heart, where they play critical roles in numerous...

Mechanically-gated Ion Channels

Mechanically-gated Ion Channels

Mechanically-gated ion channels are proteins found in eukaryotic and prokaryotic cell membranes that open in response to mechanical stress. Tension, compression, swelling, and shear stress can alter the conformation of the protein, opening a transmembrane channel that allows the passage of ions for signal transmission. In eukaryotes, mechanically-gated channels are distributed in several regions like the neurons, lungs, skin, bladder, and heart, where they play critical roles in numerous...

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Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution, the Zn metal, composed...

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Related Experiment Video

Updated: May 22, 2026

Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing

Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing

Published on: March 17, 2023

Nanoelectromechanical contact switches.

Owen Y Loh¹, Horacio D Espinosa

¹Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3111, USA.

Nature Nanotechnology

|May 1, 2012

Summary

Nanoelectromechanical (NEM) switches offer superior performance in extreme environments compared to semiconductor switches. This review explores NEM switch technology

Area of Science:

Materials Science
Electrical Engineering
Nanotechnology

Background:

Nanoelectromechanical (NEM) switches function as relays, transistors, logic devices, and sensors.
NEM switches operate on principles distinct from conventional semiconductor switches.
NEM switches exhibit enhanced performance in extreme environments.

Purpose of the Study:

To review the potential of NEM switch technologies.
To assess NEM switches as a complement or replacement for complementary metal-oxide semiconductor (CMOS) technology.
To identify challenges in the large-scale manufacture of NEM-based devices.

Main Methods:

Review of existing literature on NEM switch technologies.
Comparative analysis of NEM switches and semiconductor switches.

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Last Updated: May 22, 2026

Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing

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Published on: March 17, 2023

Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators

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Identification of manufacturing challenges for NEM devices.

Main Results:

NEM switches provide advantages in specific applications, particularly extreme environments.
Semiconductor switches benefit from a more established manufacturing infrastructure.
Significant challenges exist in the large-scale production of NEM devices.

Conclusions:

NEM switch technology holds promise to augment or replace aspects of CMOS technology.
Overcoming manufacturing hurdles is crucial for widespread NEM adoption.
Further research and development are needed to bridge the gap between NEM potential and industrial application.