Electrochemical sensors used for the detection of specific biomolecules have
attracted great attention in recent years due to their high sensitivity, selectivity, simple
preparation, and fast response. In recent years, the integration of biological components
into analytical tools, especially in biomedical research, has become a prerequisite for
the early diagnosis of many diseases. In addition, enabling early diagnosis and
treatment of diseases provides improved health outcomes and rapid medical decisionmaking.
Here, we present the classification of biosensors and general concept,
materials used in electrochemical sensors, their advantages, disadvantages, and main
strategies in electrochemical biosensor technology such as electrodes and supporting
substrates, materials for the bioreceptor materials for improved sensitivity and
selectivity. This book chapter is focused on the functionalization of nanomaterials
developed in recent years aimed at electrochemical biosensors and their
functionalization for point of care devices. The various point of care device examples
have been tried to form an idea about the usage areas.
Keywords: Diagnosis, Electrochemical Sensors, Nanomaterial, Point-of-Care Devices.
