• HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
Monday, August 25, 2025
BIOENGINEER.ORG
No Result
View All Result
  • Login
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
No Result
View All Result
Bioengineer.org
No Result
View All Result
Home NEWS Science News Medical Technology

Generator uses the human body as an electrode to power portable electronics

Bioengineer by Bioengineer
March 26, 2014
in Medical Technology
Reading Time: 2 mins read
1
Share on FacebookShare on TwitterShare on LinkedinShare on RedditShare on Telegram

It’s well-known that the human body is a good conductor of electricity, and now researchers have taken advantage of this fact to create a small generator that uses the body as an electrode to power portable devices without the need for batteries. The “body contact electrode” replaces a grounded electrode that was used in a previous version of the generator, which would have been impractical for portable devices.

Generator uses the human body as an electrode to power portable electronics

The energy harvesting mechanism and equivalent circuit of the STEG with the human body as an electrode. When a finger taps the friction surface, it has a tendency to donate electrons, causing an electric charge to move back and forth between the induction electrode and the charged skin. Credit: Meng, et al. ©2014 AIP Publishing LLC

The researchers, Bo Meng, et al., at Peking University in Beijing, China, have published a paper on the generator using a human body electrode in a recent issue of Applied Physics Letters.

“At present, the generator is more suitable for low-power devices,” coauthor Haixia Zhang, a professor at Peking University, told Phys.org. “In our future plans, we hope it can be used as a back-up power source for portable electronics.”

The device’s full name is a single-friction-surface triboelectric generator, or STEG. Due to the triboelectric effect, when certain materials rub against each other, they can become electrically charged. The most well-known example of the triboelectric effect is static electricity. Activities such as tapping a mobile phone with a STEG covering can also produce these electric charges. The STEG then harvests the electric charges, which can be used to power low-power electronics.

In their study, the researchers covered the front panel of a mobile phone with a flexible, transparent layer of STEG composite material. The body contact electrode—contacted with the palm of the hand or the fingers—was located on either the back side or the border of the phone to complete the electric connection.

The researchers demonstrated that patting the phone with the palm of the hand or tapping the phone with a finger causes electrons to be exchanged between human skin and the STEG material. After repeated patting/tapping, electric charge moves back and forth between the induction electrode and the charged skin.

Although researchers have a good understanding of how the triboelectric effect works, the difficulty lies in designing a generator that can achieve good performance. Somewhat surprisingly, when the researchers replaced the grounded electrode in the STEG with a human body electrode, the STEG achieved an increase in both the output current and the amount of charge transferred.

With these improvements, the STEG has potential applications for low-power portable electronics and wearable devices, which may include implanted medical devices and sensors. The researchers plan to further improve the STEG performance in the future.

“For the STEG devices, we are making efforts to improve the output of the STEG device, attempting to use new materials and fabrication methods,” Zhang said. “The advantage of the human body as a good conductor will be taken to develop several novel triboelectric generator devices as well.”

Story Source:

The above story is based on materials provided by Lisa Zyga.

Share13Tweet8Share2ShareShareShare2

Related Posts

Designing better medical implants

May 18, 2015

A Nano-transistor Assesses Your Health Via Sweat

May 16, 2015

Researchers develop custom artificial membranes to study the molecular basis of disease

May 8, 2015

Thermometer-like device could help diagnose heart attacks

May 7, 2015
Please login to join discussion

POPULAR NEWS

  • blank

    Breakthrough in Computer Hardware Advances Solves Complex Optimization Challenges

    144 shares
    Share 58 Tweet 36
  • Molecules in Focus: Capturing the Timeless Dance of Particles

    142 shares
    Share 57 Tweet 36
  • New Drug Formulation Transforms Intravenous Treatments into Rapid Injections

    115 shares
    Share 46 Tweet 29
  • Neuropsychiatric Risks Linked to COVID-19 Revealed

    81 shares
    Share 32 Tweet 20

About

We bring you the latest biotechnology news from best research centers and universities around the world. Check our website.

Follow us

Recent News

Caspar David Friedrich: Perspectives on Aging and Longevity

MMP-7: Key Diagnostic Marker for Biliary Atresia

New Login System Detects Online Hacks While Preserving User Privacy

  • Contact Us

Bioengineer.org © Copyright 2023 All Rights Reserved.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Homepages
    • Home Page 1
    • Home Page 2
  • News
  • National
  • Business
  • Health
  • Lifestyle
  • Science

Bioengineer.org © Copyright 2023 All Rights Reserved.