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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...
Cells of the Epidermis01:24

Cells of the Epidermis

The epidermis is made of four or five layers of epithelial cells, depending on its location in the body. From deep to superficial, these layers are the stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum.
The cells in all these layers except the stratum basale are called keratinocytes, a type of cell that manufactures and stores the protein keratin. The keratinocytes in the stratum corneum are dead and regularly slough away, being replaced by cells from...
Renewal of Skin Epidermal Stem Cells01:12

Renewal of Skin Epidermal Stem Cells

The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular cells,...
Clinical Applications of Epidermal Stem Cells01:19

Clinical Applications of Epidermal Stem Cells

Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own EpiSCs...
Electrochemical Systems01:24

Electrochemical Systems

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...
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...

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Related Experiment Video

Updated: May 30, 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

Published on: September 2, 2015

Epidermal electronics.

Dae-Hyeong Kim1, Nanshu Lu, Rui Ma

  • 1Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.

Science (New York, N.Y.)
|August 13, 2011
PubMed
Summary
This summary is machine-generated.

Researchers developed new electronic systems that perfectly match the skin's properties for comfortable, invisible wear. These epidermal electronics can monitor vital signs and even control devices, offering a glimpse into future human-computer interfaces.

Related Experiment Videos

Last Updated: May 30, 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

Published on: September 2, 2015

Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Electronics Engineering

Background:

  • Traditional electronic systems are rigid and bulky, limiting their integration with the human body.
  • Epidermal electronics aim to overcome these limitations by mimicking the mechanical properties of skin.

Purpose of the Study:

  • To develop electronic systems with properties matched to the epidermis for seamless skin integration.
  • To demonstrate the functionality of these epidermal electronics for sensing and control applications.

Main Methods:

  • Fabrication of electronic systems with tailored thickness, elastic modulus, bending stiffness, and areal mass density.
  • Lamination of devices onto the skin utilizing van der Waals interactions for adhesion.
  • Integration of various sensors (electrophysiological, temperature, strain) and electronic components (transistors, LEDs, diodes, etc.).

Main Results:

  • Achieved conformal contact and adhesion to the skin without mechanical hindrance.
  • Successfully integrated diverse electronic functionalities including sensing, signal processing, and power supply.
  • Demonstrated the capability to measure cardiac, neural, and muscular electrical activity.
  • Showcased potential for use as an unconventional computer game controller.

Conclusions:

  • Epidermal electronic systems offer a new paradigm for wearable technology, enabling unobtrusive health monitoring and novel human-computer interaction.
  • The developed technology paves the way for advanced bio-integrated electronics with diverse applications.