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

The Electrical Double Layer01:30

The Electrical Double Layer

123
In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
123
Induced Electric Dipoles01:28

Induced Electric Dipoles

5.0K
A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
5.0K
Valence Bond Theory02:42

Valence Bond Theory

11.6K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
11.6K
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

903
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
903
Molecular Shape and Polarity03:37

Molecular Shape and Polarity

77.2K
Dipole Moment of a Molecule
77.2K
Ionic Crystal Structures02:42

Ionic Crystal Structures

20.4K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
20.4K

You might also read

Related Articles

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

Sort by
Same author

An Association Test for Ordinal Outcomes in Clustered Data With Informative Cluster Size.

Pharmaceutical statistics·2026
Same author

Exploring the unfolding pathways of protein families using Elastic Network Model.

Scientific reports·2024
Same author

Evaluating the Experience of Teen-to-Teen Crisis Line Volunteers: A Pilot Study.

Community mental health journal·2024
Same author

Machine learning for lumbar and pelvis kinematics clustering.

Computer methods in biomechanics and biomedical engineering·2023
Same author

Most probable paths for active Ornstein-Uhlenbeck particles.

Physical review. E·2023
Same author

Colossal Power Extraction from Active Cyclic Brownian Information Engines.

The journal of physical chemistry letters·2022
Same journal

Erratum: Low-dimensional model for adaptive networks of spiking neurons [Phys. Rev. E 111, 014422 (2025)].

Physical review. E·2026
Same journal

Disentangling the effects of many-body forces on depletion interactions.

Physical review. E·2026
Same journal

Charge transport and mode transition in dual-energy electron beam diodes.

Physical review. E·2026
Same journal

Optimization of multisite reactions in complex compartmentalized media.

Physical review. E·2026
Same journal

Origin of geometric cohesion in nonconvex granular materials: Interplay between interdigitation and rotational constraints enhancing frictional stability.

Physical review. E·2026
Same journal

Interaction of walkers with a standing Faraday wave.

Physical review. E·2026
See all related articles

Related Experiment Video

Updated: Mar 25, 2026

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

15.5K

Shell formation in short like-charged polyelectrolytes in a harmonic trap.

Sandipan Dutta1, Y S Jho1,2

  • 1Asia Pacific Center for Theoretical Physics, Pohang, Gyeongbuk, 790-784, Korea.

Physical Review. E
|February 13, 2016
PubMed
Summary
This summary is machine-generated.

This study develops a theoretical model for polyelectrolyte behavior in optical traps. Longer polymers form distinct shells, influenced by interpolymer correlations and trap strength.

More Related Videos

Optical Trap Loading of Dielectric Microparticles In Air
08:57

Optical Trap Loading of Dielectric Microparticles In Air

Published on: February 5, 2017

9.6K
Fabrication and Operation of a Nano-Optical Conveyor Belt
11:10

Fabrication and Operation of a Nano-Optical Conveyor Belt

Published on: August 26, 2015

12.2K

Related Experiment Videos

Last Updated: Mar 25, 2026

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

15.5K
Optical Trap Loading of Dielectric Microparticles In Air
08:57

Optical Trap Loading of Dielectric Microparticles In Air

Published on: February 5, 2017

9.6K
Fabrication and Operation of a Nano-Optical Conveyor Belt
11:10

Fabrication and Operation of a Nano-Optical Conveyor Belt

Published on: August 26, 2015

12.2K

Area of Science:

  • Theoretical physics
  • Polymer physics
  • Statistical mechanics

Background:

  • Recent experiments and simulations explore pattern formation in biomolecules using optical tweezers.
  • Understanding polyelectrolyte behavior in external potentials is crucial for biomolecular studies.

Purpose of the Study:

  • To develop a theoretical framework using the Reference Interaction Site Model (RISM) for calculating equilibrium density profiles of small polyelectrolytes.
  • To investigate the influence of polymer length, number, and external potential strength on density profiles.

Main Methods:

  • Application of the RISM formalism to finite Gaussian and rodlike polyelectrolytes in a harmonic potential.
  • Analysis of density profiles under varying conditions of polymer characteristics and trap strength.

Main Results:

  • For small polymers, results align with point charge models.
  • Longer polymers exhibit shell formation at the boundary layer in the mean-field limit, differing from point charges.
  • Inclusion of interpolymer correlations leads to sharp shell formation even at weaker trap strengths.

Conclusions:

  • The RISM model provides insights into polyelectrolyte self-assembly and spatial distribution in external potentials.
  • Polymer length and inter-chain interactions significantly influence observed density profiles and shell formation.
  • Findings have implications for understanding pattern formation in biological systems and designing nanoscale devices.