This book presents a state-of-the-art summary and critical analysis of work recently performed in leading research laboratories around the world on the implementation of metal oxide nanomaterial research methodologies for the discovery and optimization of new sensor materials and sensing systems. The book provides a detailed description and analysis of (i) metal oxide nanomaterial sensing principles, (ii) advances in metal oxide nanomaterial synthesis/deposition methods, including colloidal, emulsification, and vapor processing techniques, (iii) analysis of techniques utilized for the development of low temperature metal oxide nanomaterial sensors, thus enabling a broader impact into sensor applications, (iv) advances, challenges and insights gained from the in situ/ex situ analysis of reaction mechanisms, and (v) technical development and integration challenges in the fabrication of sensing arrays and devices.Here is a detailed review and analysis of metal oxide nanomaterial sensing principles; synthesis/deposition methods; low temperature sensors; insights gained from analysis of reaction mechanisms and challenges in the fabrication of sensing arrays and devices.PrefaceA) IntroductionB) Understanding, characterization and synthesis of modern metal oxide nanomaterials.1. Insights into the mechanism of gas sensor operation2. Surface science studies of metal oxide gas sensing materials3. Design, synthesis and application of metal oxide based sensing elements: A chemical principles approach4. Combinatorial approaches for synthsis of metal oxides: Processing and sensing application5. Selective crystal structure synthesis and sensing dependencies6. Synthesis of metal oxide nanomaterials for chemical sensors by molecular beam epitaxy7. Atomic layer deposition of metal oxide nanomaterials8. Microwarve synthesis of metal oxide nanoparticlesC) Novel morphologies and signal transduction principles in metal oxide baseds sensors9. Metal oxide nanowires: Fundamentals and sensorlS!