MasterSil 155: Used on Printed Circuit Board for the Portable Molecular Diagnostic System

Overview of MasterSil 155

Master Bond’s MasterSil 155 is a two-component silicone used for applications that has where electrically conductivity is needed. This graphite filled system bonds well to most substrates such as metals, plastics, and rubbers, and it also performs well when subjected to rigorous thermal cycling and shock.

Application

Portable molecular diagnostic systems can rapidly detect pathogens in the field, but pathogens are often present in amounts below the detection limit of these instruments. To address this, a researcher at the University of Hawai‘i at Mānoa developed a portable point-of-care sample preparation system using electroflotation to concentrate pathogenic organisms. Water electrolysis was used to generate hydrogen and oxygen microbubbles that displaced suspended cells into a recovered concentrate, a process known as electroflotation. During this process, a surface coating was necessary to protect the underlying electrical traces from corrosion. MasterSil 155 was used as a corrosion resistant coating for PCB electrode arrays for the electroflotation concentration of microorganisms for pathogen detection.

To read more about the key parameters and requirements, and to learn the results, please download the full case study now.

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References

Diaz, L. M. Point-of-care electroflotation of dispersed, low tolerance pathogens improves detection rates by loop mediated isothermal amplification. Masters Thesis. 2017. https://scholarspace.manoa.hawaii.edu/handle/10125/62559