Video: Crystal Field Theory Tetrahedral and Square Planar Complexes Copper(II) Binding to Amyloid Fibrils of Alzheimer's Disease Reveals a Picomolar Affinity: Stoichiometry and Coordination Geometry Are Independent of A Oligomeric Form Biochemistry GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes Synthesis, crystal structures and supramolecular architectures of square pyramidal Cu(II) complexes containing aromatic chelating N,N' donor ligands BMC Chemistry Springer Nature Link