Electron Spin Relaxation Studies of Polydopamine Radicals
Krzysztof Tadyszak, Radosław Mrówczyński, Raanan Carmieli
Abstract
relaxation time equal to 46.9 ms at 5 K and is assigned to the radical center on oxygen. The obtained data revealed that the paramagnetic species exhibit different electron spin relaxation behaviors due to different couplings to local phonons, which confirm spatial distancing between two radical types. Our results shed new light on the radical structure of PDA, which is of great importance in the application of PDA in materials science and biomedicine and allows us to better understand the properties of these materials and predict their future applications.
Topics & Concepts
Electron paramagnetic resonanceRadicalParamagnetismRelaxation (psychology)ElectronChemistryElectron nuclear double resonanceNuclear magnetic resonanceMaterials scienceCondensed matter physicsChemical physicsMolecular physicsPhysicsOrganic chemistryPsychologyQuantum mechanicsSocial psychologyPolymer Surface Interaction StudiesConducting polymers and applicationsQuantum Dots Synthesis And Properties