Indication of Heat Shock Proteins in Conducting Suspensions Using Phage Antibodies and an Acoustic Analyzer

There are numerous publications indicating an increase in the expression level of heat shock proteins (HSP) in oncological diseases. Therefore, the development of methods for indicating HSP as a marker of oncological diseases is promising. In this work, phage antibodies specific to HSP of a mouse myeloma cell line were obtained. For the first time, using a compact acoustic sensor, the effect of the conductivity of the measurement medium on the registration of an analytical signal during the interaction of phage antibodies with HSP was studied. The possibility of registering a specific interaction "HSP-phage antibodies" in suspensions with a conductivity of 50-1180 μS/cm was experimentally established. Control experiments were conducted to assess of mass load on the sensor. The results obtained are promising for the development of acoustic sensor systems in the HSP indication.