MEASUREMENT OF CARBON DIOXIDE HYDRATION BY CARBONIC ANHYDRASE ENTRAPPED IN SUBMICROMETER-SIZED NANOREACTOR

摘要

This work describes a biosensor for direct measurements of carbon dioxide (CO_2). The functionality of this device was tested by a QMB transducer coated by a liposome containing carbonic anhydrase (AC). During the CO_2 adsorption process a change in the QMB frequency was observed. Another transducer was used in this context. By a high resolution temperature variation transducer, such as the LiTaO_3. It has been possible to detect the heat generated during the reaction CO_2 +H_2O → HCO_3~- + H~+ occurring inside the liposomes. In this work, the response curves of QMB and LiTaO_3 are shown and commented.