Dr. He's major research focus is to develop and apply the most advanced and innovative analytical techniques to help solve critical and emerging issues in food science. The central tool of Lili’s research is surface enhanced Raman spectroscopy (SERS), which is a combination of Raman spectroscopy and nano-techniques. The use of metallic nanostructure enhances the Raman signals more than a million times. Her group has developed various SERS based techniques for food safety and food chemistry applications.
Dr. He's current research involves the use of SERS for the study of chemical, biological, and engineered nanoparticles contaminants in complex food matrices. For chemical detection, we have developed several innovative SERS methods for rapid detection of pesticides on and in different food matrices. Recently, we also developed an in situ method to analyze pesticide penetration in plant tissues using gold nanoparticles as probes. For bacterial detection, we have developed a mapping method to detect, identify and quantify multi-bacterial cells on a SERS substrate. Nanoparticle contaminants are a recent focus in my lab, we have successfully developed several SERS methods to detect silver nanoparticles and titanium dioxide nanoparticles in complex matrices.
Learn more at people.umass.edu/lilihe/research.html
- 2004 BS Plant Protection, Zhejiang University, China
- 2006 MS Plant Pathology, Zhejiang University, China
- 2009 PhD Food Science, University of Missouri-Columbia
- 2009-2012 Postdoc Food Science, University of Minnesota