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Related Concept Videos

Surface Active Agents01:27

Surface Active Agents

Surfactants, named for their behavior at interfaces, positively adsorb at the interfaces of two phases, reducing interfacial tension. Their versatility as emulsifiers, detergents, and foaming agents stems from this ability. Surfactants, often termed amphiphiles, share the property of amphipathy, with molecules having both hydrophilic and hydrophobic portions. The hydrophilic part is called the head, and the hydrophobic part, including an elongated alkyl substituent, forms the tail.Surfactants...
Aquaporins01:25

Aquaporins

Aquaporins or AQPs are a family of integral membrane proteins whose primary function is to transport water, while some called aquaglyceroporins also transport glycerol. In addition, aquaporins have also been suspected to be involved in transporting volatile substances, such as carbon dioxide and ammonia, across membranes. Such AQPs that act as gas channels are often highly expressed in cells involved in the gaseous exchange, such as red blood cells, epithelial cells, and pulmonary capillaries.
Noncovalent Attractions in Biomolecules02:35

Noncovalent Attractions in Biomolecules

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,...
Hydrogen Bonds01:04

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...
Hydrogen Bonds00:26

Hydrogen Bonds

Hydrogen BondsHydrogen 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...
Hydrolysis01:15

Hydrolysis

Overview
Hydrolysis is a chemical reaction in which the addition of water breaks down a polymer into its simpler monomer units. For example, peptides break into amino acids, carbohydrates into simple sugars, and DNA into nucleotides. Enzymes often facilitate these processes.
Hydrolysis Reverses Dehydration Synthesis
Complex carbohydrates can be broken down by breaking the bonds between individual sugar units. The reaction breaks a glycosidic bond as water is added to the compound. The...

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Related Experiment Video

Updated: Jul 11, 2026

Analyzing Protein Dynamics Using Hydrogen Exchange Mass Spectrometry
11:37

Analyzing Protein Dynamics Using Hydrogen Exchange Mass Spectrometry

Published on: November 29, 2013

Structural analysis of hydrophobins.

Margaret Sunde1, Ann H Y Kwan, Matthew D Templeton

  • 1School of Molecular and Microbial Biosciences, University of Sydney, Sydney 2006, Australia.

Micron (Oxford, England : 1993)
|September 19, 2007
PubMed
Summary
This summary is machine-generated.

Hydrophobins are fungal proteins that self-assemble into amphipathic monolayers. This review details research using spectroscopy and microscopy to understand their structure and nanotechnological potential.

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Area of Science:

  • Biochemistry
  • Mycology
  • Nanotechnology

Background:

  • Hydrophobins are unique fungal proteins known for self-assembly into amphipathic monolayers.
  • These proteins are crucial in fungal biology, including spore dispersal and interactions.
  • Their ability to alter surface wettability suggests significant nanotechnological applications.

Purpose of the Study:

  • To review the progress in understanding hydrophobin morphology and molecular structure.
  • To summarize research employing spectroscopic and microscopic techniques.

Main Methods:

  • Spectroscopic approaches
  • Microscopic approaches

Main Results:

  • Detailed understanding of hydrophobin self-assembly mechanisms.
  • Insights into the molecular basis of their amphipathic nature.
  • Characterization of hydrophobin structure-property relationships.

Conclusions:

  • Significant advancements have been made in elucidating hydrophobin structure using various techniques.
  • Further research into hydrophobin structure will facilitate their application in nanotechnology.