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

Noncovalent Attractions in Biomolecules02:35

Noncovalent Attractions in Biomolecules

64.0K
Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...
64.0K
Noncovalent Attractions in Biomolecules02:35

Noncovalent Attractions in Biomolecules

19.2K
19.2K
Toughness and Hardness of Aggregate01:22

Toughness and Hardness of Aggregate

595
Toughness and hardness are critical properties of aggregate materials used in concrete, particularly on pavement surfaces and industrial flooring subjected to heavy loads. Toughness is defined as the aggregate's resistance to failure by impact and is measured by the aggregate impact value (AIV). For this, the aggregate impact value test is performed, wherein the impact is delivered by a standard hammer, which falls freely under its own weight onto the aggregates. The aggregates fragment in...
595
Adhesion01:14

Adhesion

43.5K
Adhesion occurs when one type of molecule is attracted to a different molecule. Water exhibits adhesive properties in the presence of polar surfaces, such as glass or cellulose in plants. For instance, when water is poured into a glass, the positively charged hydrogen molecules of water are more attracted to the negatively charged oxygen molecules in the silica than to the oxygen in neighboring water molecules.
Capillary action is a result of water’s adhesive tendencies. When a narrow...
43.5K
Cell Adhesion in Plants01:14

Cell Adhesion in Plants

3.3K
Plants have rigid cell walls that are made up of cell wall polysaccharides that mediate cell-cell adhesion. The primary cell walls of plants consist of two independent and interacting polysaccharide networks: a pectin matrix that embeds the second network comprising cellulose and hemicelluloses.
Pectins are complex heteropolymers mainly composed of negatively-charged α-D-glucopyranosyl uronic acid and some neutral glycosyl residues such as α-L-rhamnopyranose, α-L-arabinofuranose,...
3.3K
Imaging Molecular Adhesion in Cell Rolling by Adhesion Footprint Assay08:24

Imaging Molecular Adhesion in Cell Rolling by Adhesion Footprint Assay

3.5K
This protocol presents the experimental procedures to perform the adhesion footprint assay to image the adhesion events during fast cell rolling adhesion.
3.5K

You might also read

Related Articles

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

Sort by
Same author

Enhancing flavor quality in low-salt dried large yellow croaker (Pseudosciaena crocea) through secondary fermentation: insights into microbial drivers.

Food chemistry·2026
Same author

Adhesives with a thickness smaller than the fractocohesive length enhance adhesion.

Soft matter·2026
Same author

A low-temperature, water-free fabrication route to Mg-based micro thermoelectric coolers for thermal management.

Nature communications·2026
Same author

Pectin removal in Acer rubrum increases pit membrane compliance and embolism propagation.

Plant physiology·2026
Same author

A modular hydrogel system with independent control of bioadhesion, fibrosis, and stiffness.

Science advances·2026
Same author

Chlorocholine chloride disrupts differentiation of rat stem/progenitor Leydig cells: A combined in vivo and in vitro study by Leydig cell regeneration model.

Environmental toxicology and pharmacology·2026

Related Experiment Video

Updated: Jan 20, 2026

Noncovalent Attractions in Biomolecules
02:35

Noncovalent Attractions in Biomolecules

64.0K

Instant, Tough, Noncovalent Adhesion.

Yecheng Wang1, Kun Jia1,2, Chunping Xiang1,2

  • 1John A. Paulson School of Engineering and Applied Sciences, Kavli Institute for Bionano Science and Technology , Harvard University , Cambridge , Massachusetts 02138 , United States.

ACS Applied Materials & Interfaces
|September 5, 2019
PubMed
Summary
This summary is machine-generated.

Researchers developed instant and tough noncovalent adhesion by using distinct noncovalent bonds for toughening and linking. This breakthrough offers versatile applications in engineering and medicine, with tunable detachment.

Keywords:
hydrogelinterlinknoncovalent adhesiontopologytoughener

More Related Videos

Noncovalent Attractions in Biomolecules
02:35

Noncovalent Attractions in Biomolecules

19.2K
Toughness and Hardness of Aggregate
01:22

Toughness and Hardness of Aggregate

595

Related Experiment Videos

Last Updated: Jan 20, 2026

Noncovalent Attractions in Biomolecules
02:35

Noncovalent Attractions in Biomolecules

64.0K
Noncovalent Attractions in Biomolecules
02:35

Noncovalent Attractions in Biomolecules

19.2K
Toughness and Hardness of Aggregate
01:22

Toughness and Hardness of Aggregate

595

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Adhesion Science

Background:

  • Noncovalent adhesion is crucial for applications like adhesives, wound closure, and drug delivery.
  • A general principle for developing instant and tough noncovalent adhesion is urgently needed.

Purpose of the Study:

  • To establish a general principle for creating instant and tough noncovalent adhesion.
  • To demonstrate a hydrogel system that utilizes distinct noncovalent bonds for specific functions.

Main Methods:

  • Designed a hydrogel with a covalent polymer network and noncovalent tougheners.
  • Utilized fast-forming noncovalent interlinks for instant adhesion.
  • Employed strong noncovalent interlinks that unzip for toughness.

Main Results:

  • Achieved adhesion energy exceeding 750 J/m² within seconds.
  • Demonstrated tunable detachment triggered by pH or temperature changes.
  • Showcased diverse adhesion topologies including tape, powder, and solution.

Conclusions:

  • A dual noncovalent bond strategy enables both instant and tough adhesion.
  • This principle provides a versatile design space for advanced noncovalent adhesives.
  • Potential applications span engineering and biomedical fields.