The Journal of Biological Chemistry:Beta-Amyloid Fibrils in Alzheimer's Disease are not Inert When Bound to Copper Ions but can Degrade Hydrogen Peroxide and Generate Reactive Oxygen Species Beta-Amyloid Fibrils in Alzheimer's Disease are not Inert When Bound to Copper Ions but can Degrade Hydrogen Peroxide and Generate Reactive Oxygen Species