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

Group Polarization01:01

Group Polarization

39.2K
Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
39.2K
Hedgehog Signaling Pathway02:33

Hedgehog Signaling Pathway

10.1K
The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
10.1K
Molecular Shape and Polarity03:37

Molecular Shape and Polarity

76.0K
Dipole Moment of a Molecule
76.0K
Lumber Defects01:23

Lumber Defects

562
Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability.
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
562
Polar Coordinates01:24

Polar Coordinates

384
The polar coordinate system offers an alternative to the Cartesian coordinate system for specifying points in a plane, using a distance and an angle instead of x and y coordinates. This system is particularly advantageous in situations involving circular or rotational symmetry, such as in physics or engineering problems involving waves, oscillations, or orbital paths.Defining Polar CoordinatesIn polar coordinates, a point is represented as P(r, ��), where r is the radial distance...
384
Polarity of the Cytoskeleton01:18

Polarity of the Cytoskeleton

25.3K
The intrinsic polarity of cells can be primarily attributed to two factors- i) the asymmetric accumulation of mobile components such are regulatory molecules and subcellular components across the cell and ii) the orientation of polar cytoskeletal filaments that make up the cytoskeletal networks, specifically microfilaments, and microtubules arranged along the axis of polarity. Interactions between the cytoskeletal filaments are crucial for the establishment and maintenance of the polar nature...
25.3K

You might also read

Related Articles

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

Sort by
Same author

A covalently adaptive polymer welding strategy enabling integrated electronics for pre-hospital monitoring of myocardial infarction.

Materials horizons·2026
Same author

Improper geometric ferroelectricity at the monolayer limit.

Science advances·2026
Same author

A "high-entropy + dilute" design strategy delivers a strong and ductile refractory alloy from 77 to 1,373 K.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Evolution and Suppression of Spin Cycloid in Epitaxial BiFeO<sub>3</sub> Thin Films.

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

Interfacial Electronic Modulation and Sensing Mechanisms of CO, C<sub>2</sub>F<sub>4</sub>, and COF<sub>2</sub> on MO<sub>x</sub>-Modified V<sub>2</sub>CF<sub>2</sub> MXene for C<sub>4</sub>F<sub>7</sub>N Decomposition Gas Monitoring.

Inorganic chemistry·2026
Same author

Polar nano-regions enable large spin Hall conductivity in metallic PtCoO<sub>2</sub>.

Nature materials·2026

Related Experiment Video

Updated: Feb 11, 2026

Quantitative PCR-based Assay to Measure Sonic Hedgehog Signaling in Cellular Model of Ciliogenesis
07:26

Quantitative PCR-based Assay to Measure Sonic Hedgehog Signaling in Cellular Model of Ciliogenesis

Published on: January 31, 2025

1.1K

Defect-Induced Hedgehog Polarization States in Multiferroics.

Linze Li1,2, Xiaoxing Cheng3, Jacob R Jokisaari2

  • 1Department of Chemical Engineering and Materials Science, University of California-Irvine, Irvine, California 92697, USA.

Physical Review Letters
|April 26, 2018
PubMed
Summary

Researchers engineered nanoscale defects in bismuth ferrite (BiFeO3) thin films to create complex electrical polarization structures. These engineered defects act as nano-building blocks for novel multiferroic materials.

More Related Videos

Rapid and Robust Analysis of Cellular and Molecular Polarization Induced by Chemokine Signaling
10:03

Rapid and Robust Analysis of Cellular and Molecular Polarization Induced by Chemokine Signaling

Published on: December 12, 2014

8.5K
A Laser-induced Mouse Model of Chronic Ocular Hypertension to Characterize Visual Defects
07:00

A Laser-induced Mouse Model of Chronic Ocular Hypertension to Characterize Visual Defects

Published on: August 14, 2013

13.6K

Related Experiment Videos

Last Updated: Feb 11, 2026

Quantitative PCR-based Assay to Measure Sonic Hedgehog Signaling in Cellular Model of Ciliogenesis
07:26

Quantitative PCR-based Assay to Measure Sonic Hedgehog Signaling in Cellular Model of Ciliogenesis

Published on: January 31, 2025

1.1K
Rapid and Robust Analysis of Cellular and Molecular Polarization Induced by Chemokine Signaling
10:03

Rapid and Robust Analysis of Cellular and Molecular Polarization Induced by Chemokine Signaling

Published on: December 12, 2014

8.5K
A Laser-induced Mouse Model of Chronic Ocular Hypertension to Characterize Visual Defects
07:00

A Laser-induced Mouse Model of Chronic Ocular Hypertension to Characterize Visual Defects

Published on: August 14, 2013

13.6K

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Nanotechnology advancements necessitate innovative materials synthesis for novel functional structures.
  • Multiferroic materials like bismuth ferrite (BiFeO3) are crucial for advanced electronic applications.

Purpose of the Study:

  • To investigate the role of nanoscale defects in forming complex electrical polarization structures.
  • To explore the potential of engineering defects for creating functional nanodevices.

Main Methods:

  • Synthesis of BiFeO3 thin films with tunable substrate temperatures to introduce nonstoichiometric nanoregions (NSNRs).
  • Atomic-scale scanning transmission electron microscopy (STEM) for imaging polarization patterns.
  • Phase-field simulations to understand the influence of charged defects on polarization.

Main Results:

  • Charged nonstoichiometric nanoregions (NSNRs) were successfully produced in BiFeO3 thin films.
  • Exotic polarization rotation patterns (hedgehog/vortex topologies) were observed around NSNRs.
  • These patterns induced local lattice symmetry changes, forming mixed-phase structures with enhanced piezoelectricity.

Conclusions:

  • Nonstoichiometric nanoregions (NSNRs) serve as effective nano-building blocks for complex electrical polarization.
  • Engineered defects in multiferroic materials offer a new pathway for developing advanced nanodevices.
  • Controlled defect engineering can tailor material properties for specific applications.