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Related Concept Videos

Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

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A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
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Tactile and Chemical Senses01:27

Tactile and Chemical Senses

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Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex.
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Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing
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3D Printed Stretchable Tactile Sensors.

Shuang-Zhuang Guo1, Kaiyan Qiu1, Fanben Meng1

  • 1Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455, USA.

Advanced Materials (Deerfield Beach, Fla.)
|May 6, 2017
PubMed
Summary
This summary is machine-generated.

Researchers developed a 3D printing method for multifunctional tactile sensors. This innovation enables conformal, wearable electronics for advanced bionic skin and human-machine interfaces.

Keywords:
3D printingbionic skinstretchable electronicstactile sensorswearable devices

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Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Robotics

Background:

  • Advancements in stretchable electronics and functional materials are crucial for wearable devices.
  • Traditional microfabrication has limitations in biointegration due to mechanical and thermal restrictions.
  • Novel strategies are needed for intimate skin integration of electronic devices.

Purpose of the Study:

  • To develop a multimaterial, multiscale, and multifunctional 3D printing approach for fabricating tactile sensors.
  • To demonstrate the fabrication of 3D tactile sensors conformally onto freeform surfaces under ambient conditions.
  • To showcase the sensor's capability in detecting and differentiating human movements.

Main Methods:

  • Utilized a multimaterial, multiscale, and multifunctional 3D printing technique.
  • Fabricated 3D tactile sensors under ambient conditions.
  • Achieved conformal printing onto freeform surfaces.

Main Results:

  • Successfully fabricated customized 3D tactile sensors.
  • Demonstrated the sensors' ability to detect and differentiate human movements, including pulse and finger motions.
  • Showcased the potential for biointegration with human skin.

Conclusions:

  • Custom 3D printing of functional materials and devices offers new pathways for wearable sensor integration.
  • This approach advances the development of bionic skin and human-machine interfaces.
  • The developed method bypasses traditional microfabrication limitations for enhanced biointegration.