Hydrophobic Refinement of Polarity-Switchable Lipo-Xenopeptides Modulates Endosomal Escape and Enhances mRNA Delivery In Vitro and In Vivo - Tobias Burghardt; Sophie Thalmayr; Lennart Obeser; Jana Pöhmerer; Mina Yazdi; Miriam Höhn; Matthias Völkl; Felix Sieber-Schäfer; Stefan Zahler; Olivia M. Merkel; Daniel Merk; Ernst Wagner (Journal of the American Chemical Society, 2026)