XL Peptides Support

If a research peptide arrives as a dry powder or compact material at the bottom of a vial, it may look quite different from the liquid samples commonly handled in a laboratory. In many cases, that dry material has been lyophilised, or freeze-dried. Lyophilisation is widely used to remove water from sensitive research materials while … Read more

Yes, peptide bonds are covalent bonds. More specifically, they are amide-type covalent bonds that link amino acid residues together in peptide and protein structures. This may sound like a small chemical detail, but it is important in laboratory research. The covalent nature of peptide bonds helps explain why peptide chains have defined structures, why they … Read more

Peptides and proteins are often mentioned together, which makes the difference between them seem more complicated than it really is. For laboratory researchers, the difference is that while both peptides vs proteins are built from amino-acid residues connected by peptide bonds, their size, structural complexity and behaviour as research materials can be quite different. That … Read more

As a general research-storage principle, dry lyophilised peptides may remain stable at room temperature for short periods, often described as days to weeks when kept dry, sealed, and protected from bright light.  However, room temperature is not usually preferred for long-term storage. Peptides are chemically diverse molecules. Some are relatively stable in dry form, while … Read more

Peptides are sensitive research compounds. Their stability can be affected by temperature, moisture, light, oxygen exposure, pH, and the peptide’s chemical structure.  Because of this, storage conditions are an important part of maintaining sample integrity in non-human laboratory research. In many research settings, dry lyophilised peptides are stored cold for longer-term stability. However, refrigeration is … Read more