PEG–calf thymus DNA interactions: Conformational, morphological and spectroscopic thermal studies

•PEG binds with ctDNA by weak to moderate binding forces and not via intercalative interactions.•PEG able to stabilize ctDNA structure.•PEG causes condensation of ctDNA. The main aim of this study is to provide understanding for the interaction modes and the binding affinity based on the study of PE...

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