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

Solvents01:12

Solvents

71.3K
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
71.3K
Polymers02:34

Polymers

41.1K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
41.1K
Polymers02:34

Polymers

23.3K
23.3K
Molecular Shape and Polarity03:37

Molecular Shape and Polarity

75.9K
Dipole Moment of a Molecule
75.9K
Titration in Nonaqueous Solvents01:16

Titration in Nonaqueous Solvents

1.4K
Most acid-base titrations are performed in an aqueous medium. In aqueous titrations, water competes with weaker acids or bases for proton donation or acceptance, leading to ambiguous endpoints in the titration curve. Water also affects the partial ionization of weak acids or bases. For example, water accepts a proton from acetic acid to form hydronium and acetate ions. The hydronium ion formed is a stronger acid than acetic acid, and the acetate ion is a stronger base than water. As a result,...
1.4K
Subatomic Particles03:37

Subatomic Particles

113.5K
Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller subatomic particles: protons, neutrons, and electrons. These three particles account for the mass and the charge of an atom.
113.5K

You might also read

Related Articles

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

Sort by
Same author

Green α,β-C(sp<sup>3</sup>)-H Difunctionalization of Saturated Cyclic Amines and Ethers through FeCl<sub>3</sub>-Catalyzed Dehydrogenative [4 + 2] Cycloaddition under Air.

Organic letters·2026
Same author

Orchestrated multicopper heterostructural motifs in MOF enable tandem CO<sub>2</sub> valorization via photothermal-photocatalytic C-N coupling.

Science bulletin·2026
Same author

Integrated Analysis of Genetic, Spectral, Phenotypic, and Stress-Resistant Traits in <i>Vanda</i> × <i>Papilionanthe</i> Intergeneric Hybrids.

Plants (Basel, Switzerland)·2026
Same author

Mechanistic role of gut microbiota metabolites in hypertension-insomnia comorbidity via integrated network pharmacology and molecular dynamics.

Scientific reports·2026
Same author

Shape-Memory-Assisted Self-Healing and Real-Time Acidic Environment Detection in Multifunctional Electrospun Fibers.

ACS applied materials & interfaces·2026
Same author

Diketone-Enabled Regioselective Cobalt-Catalyzed C-H/N-H Activation with Alkyl Alkynes.

The Journal of organic chemistry·2026

Related Experiment Video

Updated: Feb 8, 2026

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures
09:12

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures

Published on: August 10, 2017

8.0K

Solvent-Induced Shape Recovery of Anisotropic Polymer Particles Prepared by a Modified Thermal Stretching Method.

Yu-Ching Lo1, Hsiao-Fan Tseng1, Yu-Jing Chiu1,2

  • 1Department of Applied Chemistry, National Chiao Tung University , Hsinchu 30010 , Taiwan.

Langmuir : the ACS Journal of Surfaces and Colloids
|June 21, 2018
PubMed
Summary

Researchers developed a new method to create anisotropic polymer particles from poly(vinyl alcohol) films and polystyrene microspheres. These particles can recover their spherical shape in a controlled manner using tetrahydrofuran solvent.

More Related Videos

Shape Memory Polymers for Active Cell Culture
10:53

Shape Memory Polymers for Active Cell Culture

Published on: July 4, 2011

13.9K
Preparation of Biopolymer Aerogels Using Green Solvents
08:13

Preparation of Biopolymer Aerogels Using Green Solvents

Published on: July 4, 2016

18.4K

Related Experiment Videos

Last Updated: Feb 8, 2026

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures
09:12

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures

Published on: August 10, 2017

8.0K
Shape Memory Polymers for Active Cell Culture
10:53

Shape Memory Polymers for Active Cell Culture

Published on: July 4, 2011

13.9K
Preparation of Biopolymer Aerogels Using Green Solvents
08:13

Preparation of Biopolymer Aerogels Using Green Solvents

Published on: July 4, 2016

18.4K

Area of Science:

  • Polymer Science and Engineering
  • Materials Science
  • Nanotechnology

Background:

  • Anisotropic polymer particles exhibit unique properties valuable for microelectronics, drug delivery, and medical imaging.
  • Controlling the fabrication and shape recovery of these particles remains a significant scientific challenge.

Purpose of the Study:

  • To introduce a novel strategy for fabricating anisotropic polymer particles.
  • To investigate the solvent-induced shape recovery process of these particles.
  • To control the shape recovery rate using specific solvent concentrations.

Main Methods:

  • Fabrication of anisotropic polymer particles via thermal stretching of poly(vinyl alcohol) (PVA) films embedded with polystyrene (PS) microspheres.
  • Selective removal of the PVA matrix using an isopropanol/water mixture.
  • Induction of shape recovery to spherical form by adding tetrahydrofuran (THF), a solvent for PS.

Main Results:

  • Successfully fabricated anisotropic PS particles with distinct sharp-headed and blunt-headed morphologies based on preannealing conditions.
  • Demonstrated the release of anisotropic PS particles by dissolving the PVA matrix.
  • Achieved controlled shape recovery of anisotropic particles back to spheres by adjusting THF concentration, driven by interfacial energy reduction.

Conclusions:

  • A simple and feasible method for producing anisotropic polymer particles was established.
  • The study provides insights into the mechanism of solvent-induced shape recovery in anisotropic polymer systems.
  • The findings enable tunable shape transformation for potential advanced material applications.