Timothy Barbari

Professor, Chemical and Biological Engineering
Dean, Office of Graduate Studies

Barbari, TimMy research interests are at the intersection of diffusional mass transfer, polymer science and molecular separation.  There are two primary research directions: (1) using infrared spectroscopy to better understand the role molecular interactions play on determining the rate of diffusion in polymers, including multicomponent transport, and (2) modifying polymeric membranes to improve the selectivity of one biomolecule over others in separation and sensor applications.


451 Alderson Hall
1613 Illinois Street
Golden, CO 80401


  • BS – Colorado School of Mines
  • MS – University of California, Berkeley
  • PhD – University of Texas at Austin


  • Y. A. Elabd and T. A. Barbari, “Multicomponent Diffusion of Hydrogen Bonding Solutes in a Polymer”, AIChE J., 48, 1610-1620 (2002).
  • H. R. Kermis, G. Rao, and T. A. Barbari, “Transport Properties of PHEMA Membranes for Optical Glucose Affinity Sensors”, J. Membrane Sci., 212, 75-86 (2003).
  • Y. A. Elabd, M. Giacinti Baschetti , T. A Barbari, “Time-Resolved FTIR-ATR Spectroscopy for the Measurement of Molecular Diffusion in Polymers”, J. Polym. Sci.: Polym. Phys. Ed., 41, 2794-2807 (2003).
  • M. Giacinti Baschetti, E. Piccinini, T. A. Barbari, and G. C. Sarti, “Quantitative Analysis of Polymer Dilation during Sorption Using FTIR-ATR Spectroscopy”, Macromolecules, 36, 9574-9584 (2003).
  • S. R. Ahmed, A. T. Lutes and T. A. Barbari, “Specific Capture of Target Proteins by Oriented Antibodies Bound to Tyrosinase-Immobilized Protein A on a Polyallylamine Affinity Membrane Surface”, J. Membrane Sci., 282, 311-321 (2006).
  • C. W. Yung, L. Q. Wu, J. A. Tullman, G. F. Payne, W. E. Bentley and T. A. Barbari, “Transglutaminase-Crosslinked Gelatin as a Tissue Engineering Scaffold”, J. Biomed. Mater. Res. Part A, 83A, 1039-1046 (2007).
  • J. Guo and T. A. Barbari, “A Unified Dual Mode Description of Small Molecule Sorption and Desorption Kinetics in a Glassy Polymer”, Macromolecules 42, 5700-5708 (2009).
  • C. W. Yung, W. E. Bentley and T. A. Barbari, “Diffusion of Interleukin-2 from Cells Encapsulated in Biocompatible Enzyme-Crosslinked Gelatin Hydrogels”, J. Biomed. Mater. Res Part A, 95A, 25-32 (2010).
  • J. Guo and T. A. Barbari, “A Dual Mode Interpretation of Penetrant-Induced Swelling and Deswelling Kinetics in a Glassy Polymer”, Polymer, 51, 5145-5150 (2010).

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