**Meet the editor**

Mohammed Khalid received his BS degree in Chemistry in 2000 and PhD degree in Physical Chemistry in 2007 from the University of Khartoum, Sudan. He moved to the School of Chemistry, Faculty of Science, University of Sydney, Australia, in 2009 and joined Dr. Ron Clarke as a postdoctoral fellow where he worked on the interaction of ATP with the phosphoenzyme of the Na+/K+-AT-

Pase and dual mechanisms of allosteric acceleration of the Na+/K+-AT-Pase by ATP; then he joined the Department of Chemistry, University of Khartoum as an assistant professor, and, few years later, he was promoted as an associate professor. In 2011, he joined the staff of the Department of Chemistry at the Taif University, Saudi Arabia, where he is currently an assistant professor; his research interests include the following:

