Gerald H. Pollack, Ph.D.

As Professor of Bioengineering at the University of Washington, Pollack has spent more than four decades investigating the fundamental mechanisms that govern living systems, earning widespread recognition for challenging conventional assumptions through innovative experimental research.

Originally trained in biomedical engineering, Dr. Pollack's early research focused on muscle contraction and cellular function before expanding into the study of water as a central organizing component of biological life. He is best known for proposing the existence of a structured phase of water, often referred to as the Exclusion Zone (EZ) or the "fourth phase of water." According to his research, water adjacent to hydrophilic surfaces can organize into a highly ordered state with physical and electrical properties distinct from those of conventional liquid water. This work has stimulated extensive discussion regarding cellular biology, bioenergetics, and the role of water in living organisms.

Pollack is the author of several influential books, including The Fourth Phase of Water: Beyond Solid, Liquid, and Vapor, Cells, Gels and the Engines of Life, and Muscles: From Molecules to Motion. Through these publications, he presents an interdisciplinary perspective that integrates physics, chemistry, biology, and engineering while encouraging renewed investigation into the fundamental principles underlying life and biological organization.

Beyond his laboratory research, Dr. Pollack is the founder and organizer of the annual Conference on the Physics, Chemistry, and Biology of Water, an international gathering that brings together scientists from diverse disciplines to explore emerging research on water and its significance across the natural sciences. His work has inspired researchers worldwide to reconsider the relationship between water, energy, and biological systems while advancing new experimental approaches to one of nature's most fundamental substances.

Recognized for both his scientific rigor and willingness to investigate unconventional questions, Gerald Pollack has become one of the most influential contemporary researchers studying water and its role in living systems. His contributions continue to shape discussions in biophysics, physiology, bioengineering, and the broader scientific exploration of life's organizing principles.