Technical Guides

Animal-free peptones and yeast extracts: why and how to switch – Kemicale technical guide cover23 Oct 2026 Animal-free peptones and yeast extracts: why and how to switch Plant-derived peptones and yeast extracts remove animal-origin risk from media. What changes when you switch, how ultrafiltered grades differ, and how to qualify a new lot. Designing a fermentation medium: carbon and nitrogen sources – Kemicale technical guide cover22 Oct 2026 Designing a fermentation medium: carbon and nitrogen sources How to choose carbon and nitrogen sources for microbial fermentation, from glucose and glycerol to yeast extract, soya peptone and ammonium sulphate, and how they shape growth, overflow metabolism and... Fmoc solid-phase peptide synthesis: the reagents you need, step by step – Kemicale technical guide cover21 Oct 2026 Fmoc solid-phase peptide synthesis: the reagents you need, step by step Resins, protected amino acids, coupling reagents and orthogonal protecting groups for Fmoc SPPS, explained in the order you use them, with links to the building blocks we stock. Building blocks for medicinal chemistry, click chemistry and bioconjugation – Kemicale technical guide cover20 Oct 2026 Building blocks for medicinal chemistry, click chemistry and bioconjugation Boronic acids for Suzuki coupling, heterocycles for scaffolds, and the azide, alkyne, NHS-ester and maleimide handles used to link molecules together. Choosing a biological buffer: HEPES, Tris, MES, MOPS and PIPES compared – Kemicale technical guide cover19 Oct 2026 Choosing a biological buffer: HEPES, Tris, MES, MOPS and PIPES compared Match the buffer to your working pH, temperature and assay. A practical comparison of HEPES, Tris, MES, MOPS and PIPES, with the pitfalls that cause drifting pH and failed assays.