University of Massachusetts Amherst

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Rapid, Sensitive and Selective Sensors for Ionic Mercury

LEAD INVENTOR:
Gregory N. Tew, Ph.D.
 
TECHNOLOGY DESCRIPTION
The ability to rapidly and selectively detect and quantify chemicals has profound implications for human and environmental health. As poisonous chemicals, such as mercury (from solid-waste incineration and fossil-fuel combustion), continue to contaminate land and/or water, the development of portable, convenient “in the field” chemosensors becomes critically important. This invention provides novel colorimetric sensors for rapid, sensitive and selective detection of ionic mercury (Hg2+). The detection can be implemented using paper strip, dipstick or solution based sensors that are easy and inexpensive to manufacture and convenient to use for “in the field” measurements.
ADVANTAGES

•       Rapid and Convenient Detection: The paper strip or dipstick based sensors allow for rapid, convenient and easy detection of Hg2+. The colorimetric responses are instantaneous.

•       Superior Sensitivity: These novel sensors allow for highly sensitive detection of Hg2+ with a detection limit of 2 ppb.

•       Superior Selectivity: These novel sensors allow for highly selective detection of Hg2+ over a large number of environmentally relevant ions.

•       Low Manufacturing Costs: The paper strip or dipstick based sensors are easy to manufacture without the need for expensive raw materials and complex manufacturing processes.

 
APPLICATIONS

•       Rapid Colorimetric Sensors for Agricultural and Environmental Applications: Portable, convenient and instantaneous "in the field” colorimetric detection of Hg2+ using paper strips, dip sticks or colorimetric solutions; ultrasensitive colorimetric detection of these chemicals using a spectrophotometer.

•       Rapid Sensors for Chemical Impurities and Contaminants: “In the field,” laboratory or Industrial detection and quantification of Hg2+ as chemical impurities and contaminants.

ABOUT THE LEAD INVENTOR
Dr. Gregory N. Tew is a Professor of Polymer Science and Engineering at the University of Massachusetts Amherst, and a highly recognized scientist and entrepreneur in the field of polymer and material sciences as well as their interfaces with other scientific disciplines.
AVAILABILITY:
Available for Licensing or Sponsored Research
DOCKET:
UMA 07-03
PATENT STATUS:
US Patent 8,431,406 Issued
Contact:
Ling Shen
Senior Licensing Officer
University of Massachusetts
413-545-5276
lxshen@research.umass.edu
Inventor(s):
Raja Shunmugam
Gregory Tew
Keywords: