Books AFM Methods for Characterizing Protein Interactions with Microphase-Separated Polyurethane Biomaterials: Biological Interactions on Materials Surfaces: Understanding and Controlling Protein, Cell and Tissue Responses. Springer Publishing Company Xu, P. Soman, A. Agnihotri, C.A. Siedlecki Measurement of Time-Dependent Functional Activity of Adsorbed Fibrinogen and Platelet Adhesion on Material Surfaces Submitted to “Proteins at Interfaces III”, ACS Symposium Series Xu, P.Soman, B.M. Scheetz, C.A.Siedlecki 2013 “Chapter 3: Projection Printing of 3-Dimensional Tissue Scaffolds with Tunable Poisson’s Ratio”, pp. 47-56, book chapter in Biofabrication (Editors: W. Sun and G. Forgacs) (Elsevier), 2013. Elsevier Publishing Company P. Soman and S.C. Chen