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Related Concept Videos

Thermosensation01:43

Thermosensation

Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Assessing Body Temperature - Axilla01:14

Assessing Body Temperature - Axilla

Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
Sensory Functions of the Skin01:16

Sensory Functions of the Skin

The skin is the largest organ of the human body and plays a crucial role in our sensory perception. It contains a vast network of sensory receptors that contribute to the skin's protective function by perceiving physical, biological, and environmental cues and generating relevant responses.
There are two main categories of receptors on the skin: capsulated and non-capsulated. The non-capsulated ones are mainly the pain receptors. The capsulated ones can be further categorized based on the...
Thermoregulation01:26

Thermoregulation

The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
Tactile and Chemical Senses01:27

Tactile and Chemical Senses

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. This...

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Related Experiment Video

Updated: Jun 11, 2026

Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management
08:50

Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management

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A Flexible Skin Bionic Thermally Comfortable Wearable for Machine Learning-Facilitated Ultrasensitive Sensing.

Pengju Di1, Yue Yuan1, Mingyue Xiao1

  • 1College of Materials Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|June 26, 2024
PubMed
Summary

This study presents a new flexible electronic skin inspired by human touch. It offers high sensitivity, a wide sensing range, and excellent durability, while also improving thermal comfort for wearers.

Keywords:
MXeneadvanced thermal managementflexible electronicsmachine learning‐facilitated human‐interactive sensingskin bionic microstructure

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Area of Science:

  • Materials Science
  • Flexible Electronics
  • Wearable Sensors

Background:

  • Flexible electronics are popular for applications like electronic skins and healthcare sensing.
  • Existing flexible sensors often lack high sensitivity, wide sensing range, and durability simultaneously.
  • Poor thermal management in wearable electronics can cause discomfort due to heat buildup.

Purpose of the Study:

  • To develop a flexible, wearable electronic skin with enhanced sensing capabilities and thermal comfort.
  • To mimic the microstructure of human skin for improved tactile perception.
  • To address the limitations of current flexible electronics in sensitivity, range, stability, and thermal management.

Main Methods:

  • Fabrication of a flexible electronic skin using a polyurethane elastomer matrix.
  • Incorporation of thermally conductive boron nitride nanosheets for heat dissipation.
  • Creation of microdome structures coated with MXene nanosheets on the surface, mimicking skin layers.
  • Assembly with interdigitated electrodes for signal transmission.

Main Results:

  • Achieved ultrasensitive sensing performance with a sensitivity of approximately 288.95 kPa⁻¹.
  • Demonstrated a wide sensing range up to 300 kPa and robust cycling stability up to 20,000 cycles.
  • Exhibited efficient thermal dissipation, ensuring thermal comfort for skin contact.
  • The sensing mechanism relies on variations in contact area between microdome structures and electrodes.

Conclusions:

  • The bioinspired flexible electronic skin offers superior sensing performance and thermal management.
  • It shows significant promise for applications in wearable artificial electronic skins, human-interactive sensing, and personal health monitoring.
  • The design effectively addresses key limitations of current flexible electronic devices.