Chapter 1. Aspects of Biosensors with refers to emerging implications of Artificial Intelligence, Big Data & Analytics: The Changing Healthcare-A General Review -- Chapter 2. On Few Electronic Properties of Nano Wires of Heavily Doped Biosensing Materials -- Chapter 3. Overview of Biosensors and its Application in Healthcare -- Chapter 4. Graphene and Carbon Nanotubes (CNTs) based biosensor for life sciences applications -- Chapter 5. An Overview of Integrated Miniaturized/Microfluidic Electrochemical Biosensor Platforms for Health Care Applications -- Chapter 6. Application of Nanomaterial based Biosensors for Healthcare Diagnostics -- Chapter 7. Nanomaterials and nanodevices for treating human infectious and inflammatory diseases: Bane or Boon for human health? -- Chapter 8. Design and Analysis of One Dimensional Photonic Crystal Biosensor Device for Identification of Cancerous Cells -- Chapter 9. Dielectric Modulated Biosensor Based on Vertical Tunnel Field Effect Transistor -- Chapter 10. Electrochemical Biosensor Designs Used for Detecting SARS-CoV-2 Virus: A Review.