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Affinity Chromatography

Affinity Chromatography

Affinity chromatography is a powerful technique extensively utilized for separating and purifying specific biomolecules from complex mixtures. It capitalizes on the highly selective binding between an analyte and its counterpart, such as antibody-antigen interactions. The counterpart is immobilized on the stationary phase, forming an affinity column. The stationary phase typically consists of solid support, such as agarose or porous glass beads, immobilizing the affinity ligand. The mobile...

Ion-Exchange Chromatography

Ion-Exchange Chromatography

Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...

Types Of Column Chromatography

Types Of Column Chromatography

The stability and compatibility of column material with samples are crucial for efficient purification in chromatographic techniques. Various operating parameters such as pH, temperature, or solvent affect the packing of the column material, thereby determining the purification efficiency. The choice of column material also plays an essential role in deciding the operating parameters and can be modified based on the proteins that need to be purified.
Gel Filtration Chromatography
When the...

Principles Of Column Chromatography

Principles Of Column Chromatography

The chromatography technique was first invented in 1901 by Michael S. Tswett, a Russian botanist, to separate plant pigments using organic solvents. Further, in 1941, Archer John Porter Martin and R. L. M. Synge modified the technique by packing silica gel into a column. A mixture of amino acids was then separated on the packed column using chloroform and water mixture as the mobile phase. This was the first report on column chromatography. At present, column chromatography is a widely used...

Silica Gel Column Chromatography: Overview

Silica Gel Column Chromatography: Overview

Silica gel column chromatography is a technique for separating compounds using a column packed with silica gel as the stationary phase. This method relies on differences in the polarity of compounds. Based on their polarities, compounds move between the stationary phase (silica gel) and the mobile phase (the solvent), forming discrete bands in the column.
Polar components tend to bind strongly to the silica gel, causing them to move slowly through the column. In contrast, nonpolar compounds...

Gas Chromatography: Types of Columns and Stationary Phases

Gas Chromatography: Types of Columns and Stationary Phases

Gas chromatography (GC) relies on stationary phases to separate and analyze components in a sample. There are two main types of stationary phases: liquid and solid. Liquid stationary phases are non-volatile, thermally stable, and chemically inert liquids coated onto the column. Solid stationary phases are particles of adsorbent material, such as silica gel or molecular sieves.
For an analyte to remain on the column for a sufficient amount of time, it must exhibit some level of compatibility (or...

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Activated Cross-linked Agarose for the Rapid Development of Affinity Chromatography Resins - Antibody Capture as a Case Study

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Monolithic media for applications in affinity chromatography.

Jens Sproß¹, Andrea Sinz

¹Department of Pharmaceutical Chemistry and Bioanalytics, Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Germany.

Journal of Separation Science

|July 28, 2011

Summary

Monoliths are versatile stationary phases for affinity chromatography, enabling specific molecular separations. Their ease of preparation and functionalization make them valuable for biochemical and medical applications.

Keywords:

Affinity purification Monolith Preparation

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Area of Science:

Analytical Chemistry
Biochemistry
Materials Science

Background:

Affinity chromatography utilizes specific molecular interactions for separation.
Monoliths offer a versatile platform for chromatographic stationary phases.
Recent advancements have expanded the utility of monoliths in chromatography.

Purpose of the Study:

To review recent literature on monoliths in affinity chromatography.
To discuss various affinity approaches and molecularly imprinted monoliths.
To explore hybrid stationary phases incorporating particles or nanoparticles.

Main Methods:

Literature review of recent publications.
Analysis of different affinity chromatography techniques using monoliths.
Examination of hybrid stationary phase designs.

Main Results:

Monoliths are effective stationary phases for affinity-based separations.
Molecularly imprinted monoliths offer tailored selectivity.
Hybrid phases enhance chromatographic performance.

Conclusions:

Monoliths are increasingly important for biochemical and medical applications.
The versatility and ease of preparation of monoliths drive their adoption.
Continued development promises further applications in analytical sciences.