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Related Concept Videos

Surface Tension and Surface Energy01:16

Surface Tension and Surface Energy

When a paint brush is immersed in water, the bristles wave freely inside the water. When it is taken out, the bristles stick together. The reason behind this effect is surface tension.
Consider a beaker filled with liquid. The bulk molecules in the liquid experience equal attractive forces on all sides with the surrounding molecules. However, the surface molecules experience a net attractive force downward due to the bulk molecules. The surface of the liquid behaves like a stretched membrane,...
Physical Principles Governing Gas Exchange01:16

Physical Principles Governing Gas Exchange

Gas behavior plays a vital role in understanding bodily processes such as external and internal respiration. External respiration involves the diffusion of oxygen into the blood and carbon dioxide out of it in the lungs. In contrast, internal respiration happens in body tissues, where these gases move in opposite directions.
Gas Laws Governing Respiration
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Dalton's Law asserts that the total pressure exerted by...
Protein-protein Interfaces02:04

Protein-protein Interfaces

Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
Protein-Protein Interfaces02:04

Protein-Protein Interfaces

Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
Surface Tension01:24

Surface Tension

Surface tension is defined as the force per unit length (γ) acting along the surface of a liquid. It arises due to strong intermolecular forces of attraction. A molecule located inside the bulk of the liquid is surrounded by other molecules and experiences equal forces in all directions. However, a molecule at the surface experiences unbalanced forces because there are more neighboring molecules below than above. This creates a net inward force that pulls surface molecules toward the interior,...
Atomic Force Microscopy01:08

Atomic Force Microscopy

Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
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Updated: Jun 19, 2026

High-speed Particle Image Velocimetry Near Surfaces
11:59

High-speed Particle Image Velocimetry Near Surfaces

Published on: June 24, 2013

Biological physics near surfaces/interfaces: a perspective.

G Fragneto1

  • 1Institut Laue-Langevin, 6 Rue Jules Horowitz, BP 156, 38042 Grenoble, France. fragneto@ill.fr

The European Physical Journal. E, Soft Matter
|October 15, 2009
PubMed
Summary
This summary is machine-generated.

Biological physics at interfaces is a growing field requiring diverse techniques. Future advancements depend on new tools and collaboration between scientists from various disciplines.

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Last Updated: Jun 19, 2026

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Area of Science:

  • * Interdisciplinary research at the intersection of physics, biology, chemistry, and materials science.
  • * Focus on the physical principles governing biological systems at interfaces.

Background:

  • * Biological physics at interfaces is a rapidly expanding research area.
  • * Complex biological systems necessitate the integration of multiple scientific disciplines.
  • * Understanding interfacial phenomena is crucial for biological processes.

Purpose of the Study:

  • * To highlight the interdisciplinary nature of biological physics at interfaces.
  • * To emphasize the need for diverse and complementary techniques.
  • * To outline future directions for the field.

Main Methods:

  • * Application of various complementary experimental and theoretical techniques.
  • * Integration of knowledge from material science, physics, molecular biology, and chemistry.
  • * Development of novel instrumentation for studying interfacial phenomena.

Main Results:

  • * The field successfully integrates diverse scientific disciplines.
  • * A wide array of complementary techniques are essential for studying complex systems.
  • * Collaboration across disciplines is key to progress.

Conclusions:

  • * Continued success in biological physics at interfaces requires advanced instrumentation.
  • * Enhanced interaction and collaboration among material scientists, physicists, molecular biologists, and chemists are vital.
  • * Interdisciplinary synergy will drive future discoveries in the field.