May 2009
May 2007
Apr. 2007
Feb. 2006
Aug. 2005
Jun. 2004
Oct. 2001
American Celiac Family Support Group (East Greenwich, RI)
Rhode Island Department of Health (Providence, RI)
Korea Renewable Energy Colloquium (Jeju, Korea)
3M Innovation (Gyeonggi, Korea)
The Polymer Society of Korea (Daejeon, Korea)
ACS National Meeting (Washington, DC)
IUPAC Macro (Paris, France)
The Polymer Society of Korea (Seoul, Korea)