Mehmet Sankir, PhD, received his doctorate in macromolecular science and engineering from the Virginia Polytechnic and State University, USA, in 2005. Dr. Sankir is a full professor in the Department of Materials Science and Nanotechnology Engineering, TOBB University of Economics and Technology, Ankara, Turkey, and group leader of the Advanced Membrane Technologies Laboratory. He has carried out research and consulting activities in the areas of membranes for fuel cells, flow batteries, hydrogen generation, and desalination. He has organized special sessions for engineering conferences. This is his seventh co-edited book with the Wiley-Scrivener imprint.

Nurdan Demirci Sankir, PhD, is a full professor in the Materials Science and Nanotechnology Engineering Department at the TOBB University of Economics and Technology (TOBB ETU), Ankara, Turkey. She received her doctorate degree in materials science and engineering from the Virginia Polytechnic and State University, USA, in 2005. After graduation, she joined NanoSonic Inc. in Virginia, USA as an R&D engineer and program manager. In 2007, she enrolled at TOBB ETU, where she has been a faculty member since then. She established the Energy Research and Solar Cell Laboratories at TOBB ETU. Nurdan has actively carried out research and consulting activities in the areas of photovoltaic devices, solution-based thin-film manufacturing, solar-driven water splitting, photocatalytic degradation, and nanostructured semiconductors. This is her seventh co-edited book with the Wiley-Scrivener imprint.