Solid-state NMR Spectroscopy in Pharmaceutical Sciences from Drug Delivery to Formulation Development

The success of modern medications for the purpose of benefiting patients is a product of the best practice of interdisciplinary sciences and technologies. Structural details often provide the molecular mechanism to construct the interplay among biology, chemistry and engineering. Solid-state NMR spectroscopy (ssNMR) analyzes a wide range of insoluble pharmaceutical materials from small molecule medicines to biological products in a non-invasive and quantitative manner. The obtained structural information at macroscopic and microscopic scales offer critical knowledge for understanding and optimizing drug delivery, chemical and physical stability, bioavailability, formulation composition, and manufacturing process. This presentation will overview the versatile roles of ssNMR in pharmaceutical development for providing the structural basis for the design of drug substances and products. Advanced techniques including proton detection under ultrafast magic angle spinning (UF-MAS) and dynamic nuclear polarization (DNP) for overcoming low sensitivity challenges of natural abundance crystalline compounds, amorphous drug substance and solid dosages will be discussed. A variety of studies from small molecules to biopharmaceutics will be included as examples to introduce the molecular structure mediated questions in pharmaceutical sciences and elaborate how ssNMR techniques are employed to tackle these analytical challenges.


Yongchao Su, Ph.D

Principal Scientist and Head of Biopharmaceutical NMR Laboratory (BNL) in Pharmaceutical Sciences at Merck & Co, Inc.

Dr. Su is a Principal Scientist in the department of Analytical Research and Development at Merck & Co, Inc., United States, and an analytical lead of material and biophysical characterization. His solid-state NMR work focuses on investigating molecular basis of drug delivery and stability for drug product development. He teaches as an adjunct faculty member at the University of Texas at Austin and Purdue University. Yongchao has recieved postdoctoral training at Massachusetts Institute of Technology with Prof. Robert G. Griffin after his PhD at Iowa State University with Prof. Mei Hong. He is a member in Physical Analysis Expert Committee in United State Pharmacopeia, a Board Member of Eastern Analytical Symposium, a Co-vice Chair of Gordon Research Conference on molecular structure elucidation. He currently serves in the Editorial Advisory Board for Magnetic Resonance in Chemistry, Pharmaceutical Research, Molecular Pharmaceuticals, and Journal of Pharmaceutical Sciences, and as an Editor of the section of protein conformation forAmino Acids. He has contributed over 90 peer-reviewed journal articles and is a coinventor of patents on drug developments of therapeutic chemicals and proteins.


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