Related Experiment Video
Updated: Apr 18, 2026

Monitoring Protein Adsorption with Solid-state Nanopores
Published on: December 2, 2011
Protein behavior at surfaces: orientation, conformational transitions and transport
Linling Yu1, Lin Zhang1, Yan Sun1
1Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
This study overviews protein behavior in chromatography, focusing on surface interactions, unfolding, and refolding. Advances in molecular simulations and experiments inform the design of high-performance protein chromatography materials and conditions.
Area of Science:
- Biochemistry and Biophysics
- Chemical Engineering
- Materials Science
Background:
- Chromatography is fundamental for protein purification and refolding.
- Understanding protein-surface interactions is crucial for optimizing chromatographic processes.
Purpose of the Study:
- To review scientific and technological advancements in protein chromatography.
- To explore protein behavior at chromatographic surfaces, including orientation, conformational changes, and transport.
- To highlight implications for designing advanced protein chromatography systems.
Main Methods:
- Review of recent scientific literature.
- Analysis of molecular simulations.
- Integration of theoretical and experimental investigations.
Main Results:
- Detailed examination of protein orientation and conformational transitions (unfolding/refolding) on surfaces.
- Discussion of protein transport phenomena in chromatographic systems.
- Identification of key factors influencing protein behavior.
Conclusions:
- Molecular simulations and experimental data offer insights into protein-surface interactions.
- These findings guide the rational design of novel chromatographic materials and mobile phase conditions.
- Advancements aim to enhance the performance of protein chromatography for purification and refolding.
More Related Videos
Related Concept Videos
Protein-protein Interfaces
Surface Tension and Surface Energy
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,...
Noncovalent Attractions in Biomolecules
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,...
Noncovalent Attractions in Biomolecules
Molecular Chaperones and Protein Folding
The...
Pore Transport and Ion-Pair Transport
Pore transport, also known as convective transport, is a process where small molecules like urea, water, and sugars rapidly cross cell membranes as though there were channels or pores in the membrane. Although direct microscopic evidence is limited but the concept of pores or channels is widely accepted based on physiological evidence. Despite the lack of direct...

