Original ResearchPublished 1 October 2026An oxygen gradient chamber with simple geometry for generating oxygen gradients in hydrogel-based cell cultures within a well-plate-compatible formatTabea Marie Fleischhammer · Nele Bösing · Janina Bahnemann · Iliyana Pepelanova · Antonina LavrentievaFrontiers in Bioengineering and Biotechnologydoi 10.3389/fbioe.2026.1937577