Examples for biological reactivity involving free radicals followed by CIDNP

Inmaculada AndreuDepartamento de Química-Instituto de Tecnología Química UPV-CSIC, Universidad Politécnica de Valencia, Valencia, Spain

Dmytro NeshchadinInstitute of Physical and Theoretical Chemistry, Graz University of Technology, Graz, Austria

Stephen N. BatchelorUnilever Research Port Sunlight, Quarry Road East, Bebington, UK

Miguel A. MirandaDepartamento de Química-Instituto de Tecnología Química UPV-CSIC, Universidad Politécnica de Valencia, Valencia, Spain

Georg GescheidtInstitute of Physical and Theoretical Chemistry, Graz University of Technology, Graz, AustriaCorrespondence[email protected]

Abstract

It is shown how chemically induced dynamic nuclear polarisation (CIDNP) spectroscopy is able to efficiently complement electron paramagnetic resonance (EPR), when molecular transformations of free radical pairs are investigated. This is demonstrated in three examples of modelling biologically relevant phenomena, particularly oxidative stress and antioxidant activity. Lipid peroxidation, topological control in the oxidation of cholesterol, and a mechanistic study of antioxidant activity of natural tea and wine polyphenols are presented.

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Examples for biological reactivity involving free radicals followed by CIDNP

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Examples for biological reactivity involving free radicals followed by CIDNP

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