��ɫ��Ƶ

City College of New York researchers led by chemist  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’sDivision 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 , a professor of chemical engineering in CCNY’ss who participated in the study. 

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

Their finding appears in the June 26 issue of “.”

About T��ɫ��Ƶ
Since 1847, T��ɫ��Ƶ 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.