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For most chemists purifying organic reaction mixtures, normal-phase flash chromatography is the go-to technique. Why not, it is quick, relatively efficient, and can provide relatively high loading cap...
Flash chromatography is a purification technique used by chemists to isolate their targeted compound from by-products and impurities. Because the reaction mixture (or natural product extract) may have...
A good question I get asked frequently to which there is no specific value. When asked this question I answer, “it depends on your sample and how good your separation is”; not a satisfying response, b...
We’ve all done it. Loaded a very small amount of our peptide onto an analytical, maybe semi-prep column, to see where the desired peak elutes, then create a shortened version of that gradient for the ...
Let's be honest. Optimizing a purification protocol for a single peptide is not something that one wants to spend a lot of time thinking about, let alone actually pursuing. There are times though, tha...
Disulfide rich peptides are unique in both their incredibly high cysteine content, but also in the stability imbued by the multiple disulfide bonds. These peptides, stable under extreme conditions tha...
As peptide therapeutics continue to gain interest from the medical community and pharmaceutical companies, concerns regarding the cost of manufacturing also grow. Cost includes the expense of reagents...
I’ve recently worked with several peptide groups that are trying out flash purification with their peptides for the first time. And it never fails, every single interaction includes the question “what...
Big pharmaceutical companies have begun to refocus their efforts towards peptide discovery projects with the hopes of identifying the next big peptide drug. There are often hundreds to thousands of pe...
Covalent stapling strategies that stabilize a particular secondary structure have garnered much attention as interest in peptide therapeutics continues to grow. One such strategy - using olefin-bearin...