Characterization of QCM-based sensors with dissipation using Polyethylene Glycol

MISTA C; M. ZALAZAR; N. DÍAZ MOLINA; M. WEISS; E. PARAVANI

Congreso; XXI Congreso Argentino de Bioingenieria - SABI 2017; 2017

Advances in biosensors have revolutionized the field of clinical diagnosis. To obtain reliable results, it is important to fully characterize all the properties of the biosensors. The article presents the characterization of a sensor using Polyethylene Glycol (PEG) and water. PEG is a condensation polymer of ethylene oxide and water. The quantification of physical properties of PEG results important for vast medical applications. A new design of sensor based on a Quartz Crystal Microbalance is characterized using PEG solutions. The objective of the article is to evaluate whether the rising procedure with 1 mL and 15 mL of pure water affects the measures, and whether different concentrations of PEG solutions (0, 15, and 30%) can be decimated using the sensor. The results showed that deficient rising procedure affects the quantification, and the system was able to discriminate between the PEG solutions. This sensor has shown to be a rapid monitoring technique, low cost, high reproducibility for detection of low amounts of concentrations of solutions.