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Research Library
Explore our collection of research articles, guides, and protocol documentation.
Peptide Guides
A lyophilized peptide that refuses to dissolve can stall an experiment, and the wrong solvent can quietly change the molecule. This guide explains how laboratories read a sequence's net charge and hydrophobicity to choose between dilute acetic acid, DMSO, and ammonium bicarbonate, what each solvent does chemically, where each one introduces risk, and how to protect the peptide once it is in solution.
Peptide Guides
Charge is one of the first things you need to know about a peptide, and a single number captures it: the isoelectric point. This guide explains what pI means, which parts of a peptide set it, how to calculate it by hand for a simple case, and how to find it for any real sequence using free tools.