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Related Concept Videos

Adsorption of Gases on Solids01:28

Adsorption of Gases on Solids

Adsorption is a process where molecules, known as the adsorbates, accumulate on a surface, which is referred to as the adsorbent or substrate. Occurring at the solid-gas interface, this phenomenon is crucial in various scientific and industrial contexts. The reverse of adsorption is desorption.Two types of adsorptions exist: physical (physisorption) and chemical (chemisorption). Physisorption involves gas molecules held to the solid's surface by relatively weak intermolecular van der Waals...
Adsorption Isotherms I01:29

Adsorption Isotherms I

Adsorption isotherms are mathematical models that describe how molecules in a gas or liquid phase interact with surfaces. Two of the most common isotherm models are the Langmuir and Freundlich isotherms, which relate to Type I monolayer chemisorption. The Langmuir model is based on four key assumptions:• Adsorption cannot exceed monolayer coverage.• All surface sites are equivalent.• Molecules adsorb only at vacant sites.• There are no interactions between adsorbed molecules.Consider the...
Adsorption Isotherms II01:25

Adsorption Isotherms II

Brunauer, Emmett, and Teller (BET) introduced a theory in 1938 that modified Langmuir's assumptions to explain multilayer physical adsorption. This theory is applicable to Type II isotherms and provides a more realistic picture of adsorption processes. The BET theory assumes a uniform solid surface with localized adsorption sites, where adsorption at one site doesn't affect adsorption at neighboring sites. This theory also allows for the possibility of additional molecules being adsorbed on top...
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...
Ligand Binding Sites02:40

Ligand Binding Sites

Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
Protein-Drug Binding: Determination Methods01:22

Protein-Drug Binding: Determination Methods

Determining protein-drug binding can be achieved through indirect and direct methods, each providing valuable insights into the interaction between proteins and drugs.
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Updated: Jun 4, 2026

Monitoring Protein Adsorption with Solid-state Nanopores
08:51

Monitoring Protein Adsorption with Solid-state Nanopores

Published on: December 2, 2011

Understanding protein adsorption phenomena at solid surfaces.

Michael Rabe1, Dorinel Verdes, Stefan Seeger

  • 1Institute of Physical Chemistry, University of Zurich, Switzerland.

Advances in Colloid and Interface Science
|February 8, 2011
PubMed
Summary
This summary is machine-generated.

This review explores protein adsorption mechanisms at solid surfaces, addressing complex phenomena like structural changes and aggregation. It bridges mechanistic understanding with mathematical models and experimental approaches for better insights.

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Area of Science:

  • Biophysics
  • Surface Science
  • Materials Science

Background:

  • Protein adsorption at solid surfaces is crucial in natural processes, attracting significant research interest.
  • Existing explanations for phenomena like protein aggregation and adsorption kinetics remain debated and contradictory.

Purpose of the Study:

  • To comprehensively review recent advancements and new perspectives in protein adsorption processes.
  • To focus on mechanistic aspects and their mathematical modeling.
  • To outline experimental and computational strategies for studying protein adsorption.

Main Methods:

  • Review of existing literature on protein adsorption.
  • Analysis of mechanistic aspects and their mathematical translations.
  • Discussion of experimental and computational approaches.

Main Results:

  • Identified key phenomena in protein adsorption, including structural rearrangements, cooperative adsorption, overshooting kinetics, and aggregation.
  • Highlighted the importance of mechanistic understanding and mathematical modeling.
  • Outlined practical strategies for experimental and computational investigations.

Conclusions:

  • Despite progress, a unified understanding of protein adsorption mechanisms is lacking.
  • Further research integrating mechanistic insights, mathematical models, and advanced experimental/computational techniques is essential.
  • This review provides a framework for future studies in protein-surface interactions.