In the last years, great progress has been accomplished in the development of aptamer sensors with different transducers. In order to improve the sensitivity of these biosensors, several methodologies have been employed. In this Special Issue, the state of art and the future trends in the field of aptamer sensors have been explored.
Keywords: aptamer; aptasensor, affinity sensor; biomimetic recognition element; electrochemical; electrochemiluminescent; optical; sensor; surface plasmon resonance.