2026-06-01T17:12:33Z https://icatplus.esrf.fr/oaipmh/request

oai:icatplus.esrf.fr:inv/2049617513 2025-04-21T06:00:34.533Z

4.2 EI 10.15151/ESRF-ES-2049617513 Gilbert CHAHINE Gilbert Chahine 0000-0003-2550-2325 Sabine ROSENFELDT Sabine Rosenfeldt Isabelle MORFIN Isabelle Morfin Richard NEUBERT Richard Neubert 0009-0006-0594-4379 Richard NEUBERT Richard Neubert 0009-0006-0594-4379 Vincent SCHILDKNECHT Vincent Schildknecht Vincent SCHILDKNECHT Vincent Schildknecht Sabine ROSENFELDT Sabine Rosenfeldt Anja VOIGT Anja Voigt 0009-0005-5455-6877 Anja VOIGT Anja Voigt 0009-0005-5455-6877 Example Institute 2028 Data from large facility measurement 2025-04-15T14:00:00Z/2025-04-21T06:00:00Z 2025-04-21T06:00:00Z I CC-BY-4.0 An unbroken cold chain is crucial for health, impacting vaccines, medical products, and daily food. Effective management and cost-efficient monitoring are challenging. Polymer micelles, such as the pentablock copolymer (qPDMAEMA85-PEO130-PPO44-PEO130-qPDMAEMA85), can serve as inexpensive indicators of refrigeration breakdown. By deeply understanding the micellization of this non-equilibrium system, we aim to develop a system for temperature-dependent and irreversible colloidal aggregation, indicating temporary heating above a threshold temperature. We use a micellar system with iron species at the centre of a flower-like micelle, previously shown to undergo irreversible aggregation upon heating. However, the process is not fully understood. Introducing Prussian blue nanoparticles can influence this aggregation, inhibiting its irreversibility. We plan to perform ASAXS measurements to investigate the location and role of the iron species during these processes in detail.