Hamid Arastoopour, Henry Linden Professor of Engineering and WISER director, presented a keynote address at the American Institute of Chemical Engineers (AIChE) Eighth World Congress on Particle Technology. The premier event on research in particle science and technology, this year’s World Congress was held April 22-26 in Orlando, Florida, and centered on the theme: Expanding Boundaries. Arastoopour’s lecture was titled,“Creating a Pathway to Sustainability: The Critical Contribution of Particle Technology Research.”.