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Related Concept Videos

Hydrogen Bonds00:26

Hydrogen Bonds

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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....
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Hydrogen Bonds01:04

Hydrogen Bonds

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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...
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Polymers02:34

Polymers

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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...
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IR Spectrum Peak Broadening: Hydrogen Bonding01:23

IR Spectrum Peak Broadening: Hydrogen Bonding

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The vibrational frequency of a bond is directly proportional to its bond strength. As a result, stronger bonds vibrate at higher frequencies, while weaker bonds vibrate at lower frequencies. The stretching vibration of the strong O–H bond in alcohols and phenols (very dilute solution or gas phase) appears as a sharp peak at 3600–3650 cm−1.
However, the extent of hydrogen bonding influences the observed stretching frequency and band broadening. Intermolecular or intramolecular...
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Valence Bond Theory02:45

Valence Bond Theory

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Related Experiment Video

Updated: Feb 4, 2026

Generation of Alginate Microspheres for Biomedical Applications
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Generation of Alginate Microspheres for Biomedical Applications

Published on: August 12, 2012

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Correction: Engineered hydrogen-bonded polymer multilayers: from assembly to biomedical applications.

Georgina K Such1, Angus P R Johnston, Frank Caruso

  • 1Centre for Nanoscience and Nanotechnology, Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia. fcaruso@unimelb.edu.au.

Chemical Society Reviews
|October 5, 2018
PubMed
Summary
This summary is machine-generated.

This correction clarifies details in a previous review on engineered hydrogen-bonded polymer multilayers. It ensures accuracy in the assembly processes and biomedical applications discussed.

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Area of Science:

  • Polymer Science
  • Materials Science
  • Biomedical Engineering

Background:

  • Hydrogen-bonded polymer multilayers offer versatile platforms for advanced applications.
  • Understanding their assembly is crucial for controlling material properties.
  • Biomedical applications require precise control over multilayer structure and function.

Purpose of the Study:

  • To correct and refine information presented in a prior review article.
  • To ensure the accurate representation of engineered hydrogen-bonded polymer multilayers.
  • To provide updated insights into their assembly and biomedical uses.

Main Methods:

  • Review and re-evaluation of data and methodologies.
  • Cross-referencing with original research findings.
  • Clarification of specific experimental details and interpretations.

Main Results:

  • Specific corrections to figures and text within the original review.
  • Refined explanations of polymer multilayer assembly mechanisms.
  • Updated context for biomedical applications.

Conclusions:

  • Accurate scientific communication is essential for research progress.
  • Corrected information enhances the reliability of the review.
  • Ensures a solid foundation for future research in polymer multilayers.