Professional Preparation:

Professional Appointments

Professor, Pharmaceutics, UMN, 1998-present (Dept. Head, 1999-present)
Professor, Biomedical Engineering, UMN, 2000-present
Professor, Biopharmaceutical Sciences and Pharmaceutical Chemistry, UCSF, 1997-1998 (Assoc. Prof, 1990-1997, Assist. Prof., 1984-1990)

Selected Publications

R.A. Siegel, "Hydrophobic Weak Polyelectrolyte Gels: Studies of Swelling Equilibria and Kinetics," Adv. Polym. Sci., 109, 233-267(1993)

D.F. Bairamov, A.E. Chalykh, M.M. Feldstein, R.A. Siegel, and N.A. PlatŽ, "Dissolution and Mutual Diffusion of Poly(N-Vinyl Pyrrolidone) inShort Chain Poly(Ethylene Glycol) As Observed by Optical Wedge Interferometry," J. Appl. Polym. Sci., 85, 1128-1136(2002)

A.P. Dhanarajan, G.P. Misra, and R.A. Siegel, "Autonomous Chemomechanical Oscillations in a Hydrogel/Enzyme System Driven by Glucose," J. Phys. Chem. A, 106, 8835-8388(2002)

M. Lei, Y. Gu, A. Baldi, R.A. Siegel, and B. Ziaie, "A High Resolution Technique for Fabricating Environmentally Sensitive Hydrogel Structures," Langmuir, 20, 8947-8951(2004)

A. P. Dhanarajan and R. A. Siegel, "Time-Dependent Permeabilities of Hydrophobic, pH-Sensitive Hydrogels Exposed to pH Gradients," Macromol. Symp., 227, 105-114(2005)

R.A. Siegel and R. Langer, "Controlled Release of Polypeptides and Other Macromolecules" Pharm. Res., 1, 2-10 (1984)

G. P. Misra and R. A. Siegel, "A New Mode of Drug Delivery: Long Term Autonomous Rhythmic Hormone Release Across a Hydrogel Membrane," J. Controlled Release, 81, 1-6 (2002)

B.I. Rosner, R.A. Siegel, A. Grosberg, and R.T. Tranquillo, "Rational Design of Contact Guiding, Neurotrophic Matrices for Peripheral Nerve Regeneration," Ann. Biomed. Eng., 31, 1383-1401 (2003)

B. Ziaie, A. Baldi, M. Lei, Y. Gu, and R.A. Siegel, "Hard and Soft Micromachining for BioMEMS: Review of Techniques and Examples of Applications in Microfluidics and Drug Delivery," Adv. Drug Deliv. Revs., 56, 145-172 (2004)