Section I: 1. Introduction to Sensor Nanotechnology and Flexible Electronics. 2. Influence of Dynamic Bending Reliability of Flexible Hybrid Electronics. 3. Graphene Based Materials and Devices for Transparent Stretchable Electronics. 4. A High-contrast and Cost-effective Optical Hydrogen Sensor. Section II: 5. Advancements in Wireless Highly Stretchable Sensors for Hybrid Nanogenerator. 6. Elastomeric Substrate for Stretchable Electronics. 7. Ultra-Thin Graphene-assembly of Liquid Crystal Stretchable Active Matrix Performance of Thermal and Switchable Sensor. 8. Stretchable Capacitive Sensor for Highly Sensitive Electrochemical Sensing. 9. Fabrication of Stretchable Composite Film for Superconductor Applications. 10. Development of Intrinsically Stretchable Electronics Challenging for Bio-Integrated Device. 11. CNTs/Graphene-Assisted Flexible Thin-film Preparation for Stretchable Electronics and Superconductor. 12. Transfer of Oxide Transistors for Stretchable Electronics. Section III: 13. Highly Sensitive Long Term Durability of Wearable Biomedical Sensor. 14. Development to Realize Stretchable Soft Electronic Devices. 15. Future Promises and Aspects in Transparent Flexible Electronics and Optoelectronics.