Free radical reactions Electron transitions 6 Oxygen 6 photochemistry 6 Amino acids 4 Anodized aluminum oxide 4 Atom transfer radical polymerization 4 Electron transfer 4 Electron transfer process 4 Excited states 4 Free Radicals 4 Kinetics 4 Laser flash photolysis 4 Light 4 Nanostructures 4 Oxidation-Reduction 4 Photochemistry 4 Photolysis 4 Quantum theory 4 Reaction intermediates 4 Solutions 4 Stiffness 4 alkylation 4 article 4 chemistry 4 electron transport 4 light 4 pH 4 Ab initio 2 Ab initio calculations 2