Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Capacitors01:15

Capacitors

805
Capacitors play a crucial role in car radios, where they filter and store frequencies to ensure clear signal reception. Essentially serving as energy storage devices, capacitors store energy within their electric field and are composed of two parallel conducting plates separated by a dielectric.
When a voltage source is connected to a capacitor, positive and negative charges accumulate on the opposite plates. This accumulation generates a potential difference that equals the product of the...
805
Capacitor With A Dielectric01:18

Capacitor With A Dielectric

4.8K
Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
4.8K
Capacitors and Capacitance01:18

Capacitors and Capacitance

9.0K
A device consisting of two electrical conductors that are separated by a distance and used to store electrical charges is called a capacitor. The space between the conductors is either a vacuum or an insulating material, called a dielectric. Capacitors have many applications, ranging from filtering static from radio reception to energy storage in heart defibrillators.
When the conductors are two identical parallel plates, it is called a parallel plate capacitor. When battery terminals are...
9.0K
Capacitor in an AC Circuit01:23

Capacitor in an AC Circuit

3.5K
A capacitor is charged by passing an electric current through it, which causes the plates to start accumulating an electrostatic charge. Since the strength of the charging current is maximum when the capacitor plates are uncharged and gradually decreases exponentially until the capacitor is fully charged, the charging process is neither instantaneous nor linear. The property of a capacitor to store a charge on its plates is called its capacitance.
Consider a purely capacitive circuit consisting...
3.5K
Capacitors in Series and Parallel01:19

Capacitors in Series and Parallel

5.6K
Multiple capacitors connected serve as electrical components in various applications. These multiple capacitors behave as a single equivalent capacitor, and its total capacitance depends on the capacitance of individual capacitors and the type of connections. Capacitors can be arranged in two - orientations, either in series or parallel connections.
Suppose the capacitors are connected one after the other such that the negative terminal of the first connects to the positive terminal of the...
5.6K
MOS Capacitor01:25

MOS Capacitor

1.4K
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
1.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Development and Validation of the 3PDQ: A Self-Reported Questionnaire for Diagnosing Primary Pain in Parkinson's Disease.

Movement disorders : official journal of the Movement Disorder Society·2026
Same author

Building public health leadership: design, implementation and outcomes of the WHO European autumn school on quality of care and patient safety.

Frontiers in public health·2026
Same author

Differentiating Upper Tract Urothelial Carcinoma with Synchronous or Metachronous Bladder Cancer.

Current issues in molecular biology·2026
Same author

Blood-based biomarkers of ferroptosis in Parkinson's disease.

Neurobiology of disease·2026
Same author

Peripheral Neuropathy during Subcutaneous Foslevodopa/Foscarbidopa Infusion in Parkinson's Disease: A Case Series.

Movement disorders clinical practice·2026
Same author

Is being asymmetric a bad thing? Insights from a longitudinal observational study on STN-DBS Parkinson's disease.

Parkinsonism & related disorders·2026
Same journal

Serum vitamin D level and its association with vertigo frequency and severity in Meniere disease.

Scientific reports·2026
Same journal

PFA-Net: a physics-informed feature enhancement and attention network for interpretable bearing fault diagnosis under strong noise.

Scientific reports·2026
Same journal

Circulating inflammatory, redox, and apoptosis-related alterations in drug-naive idiopathic pulmonary fibrosis: an exploratory case-control study.

Scientific reports·2026
Same journal

A baseline-oriented dynamic aggregation approach for demand-side heterogeneous controllable resources.

Scientific reports·2026
Same journal

Temporal precision and accuracy in schizophrenia: an exploratory study.

Scientific reports·2026
Same journal

Prefrontal EEG spectral and nonlinear signatures of subthreshold depression during resting state and affectively valenced picture/video viewing: a participant-level analysis.

Scientific reports·2026
See all related articles

Related Experiment Video

Updated: Dec 22, 2025

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
06:21

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

Published on: March 13, 2017

10.7K

Carbon threads sweat-based supercapacitors for electronic textiles.

Nuno Lima1, Ana C Baptista2, Bruno M Morais Faustino1

  • 1CENIMAT/i3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, 2829-516, Portugal.

Scientific Reports
|May 9, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed a wearable supercapacitor using sweat as an electrolyte. This flexible device, made from carbon threads and conductive polymers, offers stable power for electronics.

More Related Videos

Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors
10:57

Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors

Published on: November 30, 2021

3.1K
Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment
10:03

Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment

Published on: July 22, 2022

4.8K

Related Experiment Videos

Last Updated: Dec 22, 2025

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
06:21

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

Published on: March 13, 2017

10.7K
Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors
10:57

Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors

Published on: November 30, 2021

3.1K
Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment
10:03

Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment

Published on: July 22, 2022

4.8K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Textile Engineering

Background:

  • Wearable electronics require flexible and stretchable energy storage solutions.
  • Intelligent textiles are an emerging field integrating electronics into fabrics.
  • Supercapacitors offer high power density suitable for many electronic applications.

Purpose of the Study:

  • To develop a symmetrical wire-based supercapacitor for wearable applications.
  • To utilize the wearer's sweat as a sustainable electrolyte.
  • To enhance electrochemical performance using functionalized carbon threads.

Main Methods:

  • Fabrication of a symmetrical wire-based supercapacitor with polypyrrole-functionalized carbon electrodes.
  • Incorporation of electrospun cellulose acetate fibers as a separator.
  • Testing electrochemical performance using a simulated sweat electrolyte.
  • Evaluation of cycle stability and mechanical bendability.

Main Results:

  • The supercapacitor demonstrated a specific capacitance of 2.3 F/g, energy density of 386.5 mWh/kg, and power density of 46.4 kW/kg.
  • The device maintained stable electrochemical performance over 1000 cycles under mechanical deformation.
  • Four interconnected supercapacitors successfully powered an LED.

Conclusions:

  • The developed sweat-electrolyte supercapacitor is a promising energy storage solution for intelligent textiles and wearable electronics.
  • The device's flexibility, stability, and use of sustainable electrolyte offer significant advantages.
  • Further integration of these devices could lead to self-powered wearable systems.