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Related Concept Videos

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...
Papillary Dermis01:11

Papillary Dermis

Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen and...
Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at the...

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Related Experiment Video

Updated: Jun 20, 2026

Hollow Microneedle-based Sensor for Multiplexed Transdermal Electrochemical Sensing
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Robust Skin-Conformal Nano-Electrodes for Sustainable Health and Performance Monitoring.

Jinyoung Kim1, Sehyun Park1, Jisoo Jeon1

  • 1School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.

ACS Nano
|August 12, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a nanoscale skin-conformal electrode for resilient electrophysiological signal monitoring. The novel design suppresses noise and motion artifacts, offering superior performance to commercial gel electrodes.

Keywords:
flexible nanoscale filmshealth and performance monitoringlow-motion artifactskin-conformal nano-electrodesunderwater monitoringwearable sensors

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Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment
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Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment

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Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Wearable Technology

Background:

  • Skin-conformal electrodes offer a second-skin-like experience for high-quality electrophysiological signal recording.
  • Current electrodes face limitations due to motion artifacts in real-life conditions.
  • Commercial gel electrodes struggle with long-term stability and challenging environments.

Purpose of the Study:

  • To develop a nanoscale skin-conformal electrode for continuous, resilient electrophysiological signal monitoring.
  • To overcome limitations of existing electrodes, specifically excessive motion artifacts and low water-resilience.
  • To achieve stable signal acquisition with suppressed noise and high signal-to-noise ratio.

Main Methods:

  • Fabrication of 300 nm nano-electrodes with dual hydrophilicity (hydrophilic MXene conductor, hydrophobic parylene layer).
  • Integration of nanoscale 2D MXene conductor and cross-linked parylene for mechanical and electrical stability.
  • Testing of conformal skin-electrode interface under repeated dynamic stress (5000 cycles).

Main Results:

  • Achieved highly conformal contact and long-term stable adherence to skin.
  • Demonstrated mechanical and electrical stability under repeated dynamic stress.
  • Recorded high-quality electrocardiogram (ECG) and electromyogram (EMG) signals with suppressed noise and low motion artifacts.
  • Showcased high water-resilience, outperforming commercial gel electrodes.
  • Successfully monitored ECG and concurrent EMG/ECG during treadmill walking, proving long-term signal acquisition capability.

Conclusions:

  • The nanoscale skin-conformal electrode enables continuous, resilient electrophysiological monitoring with suppressed noise and motion artifacts.
  • The dual hydrophilic design ensures mechanical/electrical stability and high water-resilience.
  • This technology offers a significant advancement over commercial gel electrodes for reliable, long-term monitoring in demanding conditions.