This volume offers a careful selection of trend-setting topics in the field. In-depth review articles illustrate current trends in the field. Experienced experts presenta comprehensive overview concerning the electrochemical biosensing of glucose for diabetes care from an industrial research and development perspectivea survey of bioassay applications for individually addressable electrochemical arrays, focusing on liquid-phase bioanalytical assaysa review of recent advances in the development of electronic tongues based on the use of biosensor arrays coupled with advanced chemometric data analysisnovel strategies of DNA biosensor development  and corresponding applications for studies of DNA damagea survey of recent trends in the electrochemistry of redox proteins, including the increasing diversity of redox proteins used in electrochemical studies, novel immobilization strategies, and biosensor / biofuel cell applicationsan overview of electrochemical sensing of blood gases with advanced sensor conceptsa survey of recent bioelectroanalytical studies with high spatial resolution using scanning electrochemical microscopy with a  wide range of applications covering imaging of living cells, studies of metabolic activity, imaging of local enzyme activity, and studies of transport through biolayersThis timely collection will be of interest not only for experts in the field, but also to students and their teachers in disciplines that include analytical chemistry, biology, electrochemistry, and various interdisciplinary research areas.