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"This book about EPR spectroscopy in catalysis, radicals in flavoproteins, weber EPR spectroscopy in polymer science, EPR in protein science, intrinsically disordered proteins, site-directed spin labeling of membrane proteins, structure and dynamics of nucleic acids, and new directions in electron paramagnetic resonance spectroscopy on molecular nanomagnets."

"In his thesis, Matthias Junk takes an innovative approach to assess the local structure and dynamics of biological and synthetic amphiphilic macromolecules capable of transporting small molecules. Replacing the latter with stable radicals, he uses state-of-the-art electron paramagnetic resonance (EPR) spectroscopy to describe the highly relevant transport function from the viewpoint of the guest molecules. Such, he demonstrates that the functional structure of human serum albumin in solution significantly differs from its crystal structure, a consequence of the protein’s adaptability to host various endogenous compounds and drug molecules. Further, he shows that the thermal collapse of thermoresponsive hydrogels and dendronized polymers leads to static and dynamic heterogeneities on the nanoscale. These heterogeneities bear consequences for the material’s hosting properties and enable unforeseen complex catalytic functionalities."