Centrifugation
Centrifugation — A technique using rotational force to separate components of a mixture by density, used in peptide purification and sample preparation.
What Is Centrifugation?
Centrifugation separates particles by density using centrifugal force. In peptide research, centrifugation is used for cell harvesting before lysis, clearing lysates for peptide extraction, pelleting precipitated peptides, and concentrating peptide solutions using molecular weight cutoff (MWCO) spin filters.
Applications
- Spin concentration: 3-10 kDa MWCO centrifugal filters concentrate and buffer-exchange peptide solutions
- Precipitation: Collect ammonium sulfate precipitates or aggregated peptides
- Resin separation: Quick centrifugal filtering in peptide synthesis wash steps
- Ultracentrifugation: Analytical UC determines peptide MW and association state
Frequently Asked Questions
What is Centrifugation?
A technique using rotational force to separate components of a mixture by density, used in peptide purification and sample preparation.
Why is Centrifugation important in peptide research?
Centrifugation is a fundamental concept in laboratory as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.
Authority Sources
- Centrifugation on Wikipedia
- Search Centrifugation on PubChem (NIH)
- Research articles on ScienceDirect