Tatyana Poznyak is with the Section of Graduate Studies and Research in the National Polytechnic Institute of Mexico-ESIQIE. She has been a regular member of the Mexican Academy of Sciences since 2004 and Member of National System of Researchers, SNI-II, since 1994. She is also a member of the "International Ozone Association" (IOA-PAG) - since 1998 and Active Member of the Chemical Society of Mexico - from 1997 to date. Her current researching interests are in Environmental Chemical Engineering and Ozone application in biochemistry and medicine. She directed 12 PhD’s as well as 24 Master degree theses. She has published 76 articles in journals and 7 chapters in referred books. She has presented 160 papers in international conferences and 63 in national congresses. She is the author of 8 international patents.