Journalists Elsie and Giannouli discuss nanoparticles and creating sustainable chemistry with PhD student Alexandra Gellé. Based at McGill, Alex specializes in the field of Green Chemistry, focusing on developing more sustainable and safer alternatives to chemical reactions that already exist.

Alex is also the director of Pint of Science Canada and a contributing writer for many outlets, including the Science Network and The Conversation Canada. You can follow Alex on twitter: @AlexGelle