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  he demand for vast amounts of energy and the desire to create new materials have increased our contribution to the Earth’s environmental burden. Pollutants emitted from the burning of wastes and fuels distribute into the air or piggy-back onto airborne particles. 

 Today, scientists create materials at a scale smaller than living systems that have poorly understood environmental and health implications.  Nanoparticles are tiny! A thousand times smaller than the thickness of the average human hair. Their small size imparts them with unique properties different from their larger counterpart. Thus, predicting their fate and transformation in the environment remain a challenge.
 
At the heart of our research, we seek to understand the role of particles and their interactions with environmental contaminants. Knowledge about them will help us develop strategies and measures for improving air quality and human health.