Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Hydrogen Bonds

Hydrogen Bonds

Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....

Hydrogen Bonds

Hydrogen Bonds

A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...

You might also read

Related Articles

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

Sort by

Same author

AI Agents Are Coming: 5-Stage Taxonomy of Language-Based AI Systems for Psychiatry, Psychotherapy, and Counseling.

JMIR mental health·2026

Same author

Soft Hardware, Flowing Software: Reconfigurable Microfluidics for Adaptable Chemical Computation.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Ultra-High-Throughput Discovery of Multifunctional Polyphenolic Coatings on Droplet Microarrays.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

DNA Condensates Enable Crosstalk-Free Operation of Identical DNA Computing Cascades.

Angewandte Chemie (International ed. in English)·2026

Same author

Traditional masculinity ideologies are associated with psychiatric diagnoses in men.

Scientific reports·2026

Same author

Synthetic aptamer mechanoreceptors enable cell-specific force sensing and temporal control via DNA circuits.

Nature communications·2026

Search research articles

Related Experiment Video

Updated: Mar 19, 2026

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

Published on: February 4, 2013

Recodable surfaces based on switchable hydrogen bonds.

Nils Wedler-Jasinski¹, Nicolas Delbosc², Marie-Alice Virolleaud²

¹Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Karlsruhe, Germany. christopher.barner-kowollik@kit.edu and Soft Matter Synthesis Laboratory, Institut für Biologische Grenzflächen (IBG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.

Chemical Communications (Cambridge, England)

|June 25, 2016

Summary

Researchers developed novel recodable surfaces using reversible hydrogen bonds. These surfaces allow repeated attachment and removal of polymers via photochemical control, enabling dynamic surface patterning.

More Related Videos

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Published on: April 16, 2018

Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls

Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls

Published on: April 12, 2018

Related Experiment Videos

Last Updated: Mar 19, 2026

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

Published on: February 4, 2013

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Published on: April 16, 2018

Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls

Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls

Published on: April 12, 2018

Area of Science:

Materials Science
Polymer Chemistry
Surface Chemistry

Background:

Developing dynamic and rewritable surfaces is crucial for advanced materials.
Existing surface modification techniques often lack reversibility or spatial control.

Purpose of the Study:

To introduce and demonstrate recodable surfaces based on reversible artificial hydrogen bonding.
To achieve spatially resolved, repeated immobilization and cleavage of polymers on surfaces.

Main Methods:

Utilizing symmetrical oligoamide (SOA) attached to poly(methyl methacrylate) (PMMA).
Employing photochemically functionalized asymmetric oligoamides (AOAs) on surface domains.
Analyzing recodability using Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS).

Main Results:

Demonstrated successful repeated immobilization and cleavage of SOA-PMMA.
Achieved spatially defined surface recodability through photochemical control.
Quantified the recoding process using ToF-SIMS imaging.

Conclusions:

Recodable surfaces based on reversible hydrogen bonding are feasible.
Photochemical control enables dynamic and reversible surface functionalization.
This approach offers a new platform for creating switchable material interfaces.