AUTHOR=Şerban Ionel , Enesca Alexandru TITLE=Metal Oxides-Based Semiconductors for Biosensors Applications JOURNAL=Frontiers in Chemistry VOLUME=Volume 8 - 2020 YEAR=2020 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2020.00354 DOI=10.3389/fchem.2020.00354 ISSN=2296-2646 ABSTRACT=The present mini-review contains a concessive overview on the recent achievement regarding the implementation of metal oxide semiconductor in biosensors used in biological and environmental systems. The paper explores the pathway of enhancing the sensing characteristics of metal oxides by optimizing various parameters such as synthesis methods, morphology, composition and structure. Four representative metal oxides (TiO2, ZnO, SnO2 and WO3) are presented based on several aspects: synthesis method, morphology, functionalizing molecules, detection target and limit of detection (LOD).