Biosensors are very popular systems in several fields including medical, clinical, environment, food-agriculture, security, and forensic sciences. They also require interdisciplinary work that combines biology, analytical chemistry, physics, and bioelectronics. A biosensor is a device that includes a biological recognition element connected or integrated into a transducer. Although different methods are used as transducers,
electrochemical techniques are often preferred as good alternative due to their simplicity, low cost, fast response time, and miniaturization. Nanotechnology is used to make more sensitive analysis with electrochemical methods. Many nanomaterials are integrated with electrochemical transducers and one of the most current among these is quantum dots, which are nanometer-sized semiconductor crystals. The final part of the “Electroanalytical Applications of Quantum Dot Based Biosensors” book summarizes the importance of quantum dots for electrochemical biosensors in terms of synthesis, integration into electrochemical techniques, and usage with other materials and also explains the near future expectations for quantum dots.