1. Introduction to Sensors and Types of Biosensors 2. Sensors: Introduction and classification 3. Fundamentals of sensors and biosensors: An overview, 4. Prospect of Environmental Application of Bioelectrochemical Sensing 5. Potential and Practical Applications of Bio electrochemical sensors 6. Biochemical Interfaces for Bioelectrochemical Sensors 7. Challenges and future prospects in Bio-electrochemical sensors 8. Recent advances in bio-electroanalytical sensors based on molecularly imprinted polymeric surfaces 9. Electrochemical cyclic voltametric and kinetics of vanillin formation over TiMMO electrodes from agroresidue black liquor. 10. Biosensors as a Recognition Tool for Bio-Elements 11. Comprehensive Chemistry for Electrochemical Enzyme Biosensors 12. Development of Paper Biosensors Using Enzyme Immobilized Nanostructures Using Printing Electronics 13. Scaffold assisted synthesized metallic and semiconductor nanowires for application in electrochemical bio sensing applications 14. Biomedical Applications of Bio Electrochemical Sensors