Flexible Microwave Biosensor for Liquid Characterization Inside Laboratory Containers

This paper presents an innovative contact-less flexible microwave biosensor, capable of encircling laboratory con-tainers such as medical vials, thereby facilitating the characterization of their contents. The functionality of this sensor relies on the excitation of waveguide modes within a cylindrical coplanar waveguide (CCPW) that is filled with a water-based solution. Experimental measurements utilizing this device were conducted on aqueous solutions containing
$\text{NaCl}$
, KCI, and ethanol. The obtained results provide evidence of the high sensitivity and reliability of the device, thereby substantiating its suitability for various characterization applications.