Public Release: 

CCNY researchers develop eco-friendly oil spill solution

City College of New York

City College of New York researchers led by chemist George John have developed an eco-friendly biodegradable green "herding" agent that can be used to clean up light crude oil spills on water.

Derived from the plant-based small molecule phytol abundant in the marine environment, the new substance would potentially replace chemical herders currently in use. According to John, professor of chemistry in City College's Division of Science, "the best known chemical herders are chemically stable, non-biodegradable, and hence remain in the marine ecosystem for years."

"Our goal was to develop an eco-friendly herding molecule as an alternative to the current silicone-based polymers," said John.

Herding agents are surface-active molecules (surfactants) that when added to a liquid, such as seawater, reduce the surface tension. In the case of oil spills, when they are added along the periphery of an oil spill slick, they contract and thicken the slick or push slicks together so that they can be collected or burned.

"Understanding the interfacial behavior is crucial to design the next generation eco-friendly herding agents" said Charles Maldarelli, a professor of chemical engineering in CCNY's Benjamin Levich Institute for Physico-Chemical Hydrodynamics who participated in the study.

John's research team also included Deeksha Gupta, a postdoctoral student now at the Royal Society of Chemistry, and Vijay John of Tulane University.

Their finding will be published in the June 26 issue of Science Advances.

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About The City College of New York

Since 1847, The City College of New York has provided low-cost, high-quality education for New Yorkers in a wide variety of disciplines. More than 15,000 students pursue undergraduate and graduate degrees in: the College of Liberal Arts and Sciences;the Bernard and Anne Spitzer School of Architecture;the School of Education;the Grove School of Engineering;the Sophie Davis School of Biomedical Education, and the Colin Powell School for Civic and Global Leadership. U.S. News, Princeton Review and Forbes all rank City College among the best colleges and universities in the United States.

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