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Related Concept Videos

Adhesion01:14

Adhesion

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 glass...

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Related Experiment Video

Updated: May 29, 2026

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
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Versatile Inorganic Subnanometer Nanowire Adhesive.

Simin Zhang1,2, Wenxiong Shi3, Biao Yu1

  • 1Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China.

Journal of the American Chemical Society
|August 31, 2022
PubMed
Summary

Scientists developed a versatile subnanometer nanowire (SNW) adhesive inspired by nature. This strong, reversible adhesive works on diverse surfaces, even underwater and at low temperatures, and can be easily removed without residue.

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Area of Science:

  • Materials Science
  • Biomimetics
  • Nanotechnology

Background:

  • Traditional adhesives are limited to dry surfaces and form permanent bonds, restricting their applications.
  • Nature-inspired adhesives offer enhanced performance and versatility for various conditions.
  • Developing reversible, high-strength adhesives for diverse environments remains a challenge.

Purpose of the Study:

  • To develop a versatile subnanometer nanowire (SNW) adhesive with high strength and reversibility.
  • To demonstrate the adhesive's performance across various substrates and environmental conditions.
  • To explore the potential of SNW adhesives for practical applications and inspire new hierarchical designs.

Main Methods:

  • Fabrication of subnanometer nanowire (SNW) adhesives via a facile room-temperature reaction.
  • Evaluation of adhesive strength and reversibility on multiple substrates (metals, polymers, glass).
  • Testing adhesive performance in different environments, including underwater and ultralow temperatures.

Main Results:

  • The SNW adhesive exhibits high strength and excellent reversibility, enabling easy removal without residue or substrate damage.
  • The adhesive demonstrates broad applicability to various substrates and maintains stability in air, underwater, and at ultralow temperatures.
  • The ultrahigh flexibility of SNWs allows for multi-site contact, while inter-nanowire interactions provide strong cohesion.

Conclusions:

  • The developed SNW adhesive offers a promising solution for applications requiring strong, reversible adhesion in diverse conditions.
  • This work inspires the design of novel hierarchical adhesive structures with unique contact mechanisms.
  • The SNW adhesive has significant potential for practical applications in various industries.