Journal Article Research Support, Non-U.S. Gov't hybrid technique nickel(II) complexes EXAFS N-truncated amyloid pepides X-ray absorption spectro-electrochemical measurements XAFS with uncertainty XANES XAS XAS with uncertainty XAS-EC dead-time correction extended X-ray absorption fine structure metalloproteins radiation damage spectroelectrochemistry transmission XAFS transmission XAS trioxalatoferrate(III)