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

Sperm Structure and Semen Composition01:22

Sperm Structure and Semen Composition

11.3K
During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
11.3K
The Nucleosome Core Particle02:10

The Nucleosome Core Particle

14.5K
Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins.
The paradox
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...
14.5K
The Nucleosome Core Particle01:12

The Nucleosome Core Particle

2.4K
Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins.
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their primary aim is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. On the other hand, they must allow polymerase enzymes to access histone-bound DNA during...
2.4K
Classifying Matter by Composition03:35

Classifying Matter by Composition

90.6K
Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures. 
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated. 
A mixture is composed of two or...
90.6K
Structural Isomerism02:34

Structural Isomerism

21.7K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
21.7K
Viral Structure00:56

Viral Structure

74.6K
Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
74.6K

You might also read

Related Articles

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

Sort by
Same author

Near-Theoretical-Limit Doping of Poly(benzodifurandione) through Carbonyl-Driven Aminoalkylsilane Attachment.

Journal of the American Chemical Society·2026
Same author

Printable carbon nanotube superplastics for thermal management.

National science review·2026
Same author

AI-driven green processing and life cycle assessment for sustainable perovskite solar cells.

Nature communications·2026
Same author

A Highly Porous Nanofibrillar PEDOT:PSS Matrix for Beyond-Surface Precious-Metal Utilization and Volumetric Electrocatalysis.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Creating Nanoknot-Like Domains for Robust Artificial Spider Silk Toward High Twistocaloric Performance.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Left buttock pain in an 87-year-old woman: a clinical vignette.

Journal of Yeungnam medical science·2026
Same journal

A tri-axis optomechanical accelerometer with plasmonic MIM waveguide and structural direction-dependent optical signatures.

Scientific reports·2026
Same journal

Holographic leaky-wave antennas with independently controlled multiple counter-rotating vortex beams.

Scientific reports·2026
Same journal

Differential associations of longitudinal hearing and vision trajectories with dementia and mild cognitive impairment in older adults.

Scientific reports·2026
Same journal

Abdominal obesity and leisure-time sedentary behavior in relation to gastroesophageal reflux disease risk: a prospective cohort study from the UK Biobank.

Scientific reports·2026
Same journal

Effect of nitrogen-rich COF incorporation on the structure and separation performance of polyamide nanofiltration membranes.

Scientific reports·2026
Same journal

Withanolide A inhibits hIAPP aggregation: An In silico, biophysical, and drosophila-based In vivo validation.

Scientific reports·2026
See all related articles

Related Experiment Video

Updated: Feb 5, 2026

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
12:00

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

14.7K

Ag/MnO2 Composite Sheath-Core Structured Yarn Supercapacitors.

Ji Hwan Kim1, Changsoon Choi1,2, Jae Myeong Lee1

  • 1Center for Self-powered Actuation, Department of Biomedical Engineering, Hanyang University, Seoul, 04763, Korea.

Scientific Reports
|September 8, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed high-performance fiber supercapacitors using manganese dioxide and silver layers on carbon nanotube yarn. This design enhances energy storage for wearable electronics and medical devices.

More Related Videos

Optimizing Extracellular Vesicle Delivery Using a Core-Sheath 3D-Bioprinted Scaffold for Chronic Wound Management
09:17

Optimizing Extracellular Vesicle Delivery Using a Core-Sheath 3D-Bioprinted Scaffold for Chronic Wound Management

Published on: February 28, 2025

852
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

3.2K

Related Experiment Videos

Last Updated: Feb 5, 2026

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
12:00

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

14.7K
Optimizing Extracellular Vesicle Delivery Using a Core-Sheath 3D-Bioprinted Scaffold for Chronic Wound Management
09:17

Optimizing Extracellular Vesicle Delivery Using a Core-Sheath 3D-Bioprinted Scaffold for Chronic Wound Management

Published on: February 28, 2025

852
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

3.2K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Wearable electronics and micro-devices require compact, high-strength power sources.
  • One-dimensional (1D) yarn or fiber-based supercapacitors offer solutions due to their small diameter and volume.

Purpose of the Study:

  • To fabricate a novel composite sheath-core yarn supercapacitor.
  • To enhance energy storage performance by maximizing pseudocapacitive material loading while maintaining rate capability.

Main Methods:

  • Alternating deposition of manganese dioxide (MnO2) and silver (Ag) layers onto a carbon nanotube (CNT) yarn substrate.
  • Fabrication of a composite sheath on the CNT core fiber electrode.

Main Results:

  • Achieved synergistic effects between high loading of pseudocapacitive MnO2 and improved rate capability.
  • Demonstrated interconnected networks for electrical contact and reduced charge diffusion length via Ag interlayers.
  • Exhibited excellent specific areal capacitance (322.2 mF/cm2) and energy density (18.3 µWh/cm2).

Conclusions:

  • The composite sheath-core yarn supercapacitor design enables high loading of MnO2 without significant rate degradation.
  • This technology is promising for powering next-generation wearable and implantable electronic devices.