Journal Article Research Support, Non-U.S. Gov't ptychography Active-Strain Caseins Colloids Coupled Cardiac Electromechanics Excitation-Contraction Finite Elements Gels MATLAB Micelles PtychoShelves Published Erratum SAXS Suspensions WAXS coherent diffraction diffraction-limited synchrotron sources high-performance computing imaging phase retrieval synchrotrons tensor tomography texture analysis wide- and small-angle X-ray scattering