A highly sensitive and selective antioxidant probe based on a bi-modally functionalized conjugated polyelectrolyte†
Abstract
A new water-soluble anionic conjugated polyelectrolyte with a nitroxide radical covalently linked to the sulfonated poly(phenylene ethynylene) backbone (PPE-SO3) is reported. This radical-functionalized PPE-SO3 (RF-PPE-SO3) demonstrates fluorescence and electron spin resonance (