Bio-Inert Coatings for Medical Devices

Preventing adsorption of proteins onto device surfaces is highly desirable in the medical industry. SilcoTek’s coatings provide a robust, low energy surface that prevents proteins and other media from sticking. This improves analytical sensitivity and accuracy and while significantly increasing sample throughput.


Reduce Carryover & Contamination

Injector needles can be a major source of non specific protein binding and cross contamination of samples.  Trace proteins and other sticky compounds can remain after washing with bleach or other cleaning agents.  Non-stick Dursan coated needles significantly reduce carryover, preventing false positive test errors.  QCM-D analysis of coated and uncoated stainless steel surfaces show significant increase in protein mass on the stainless steel surface.  The Dursan coated surface does not retain proteins, showing no increase in mass after washing with a non-ionic surfactant.

Sampling & Transfer

Prevent Sample Loss & Corrosion     

Corrosion can be a major source of contamination in sampling and transfer systems.  Trace moisture or aggressive cleaning agents can cause surface pitting which can retain or react with critical test compounds.  Prevent surface contamination and corrosion by coating critical flowpath surfaces with Dursan®.  Dursan improves corrosion resistance to broad spectrum microbials like bleach by orders of magnitude compared with uncoated stainless steel.


Improve Inertness & Purity

Reactive stainless steel, glass, and quartz surfaces can adsorb active compounds during sample transfer.  Bio-inert Dursan does not react with proteins or other sample compounds, preventing test errors, carryover or contamination of test flowpaths.

Stainless Steel Components

Improve Corrosion Resistance

Stainless steel components can retain moisture, causing sample adsorption and corrosion.  Hydrophobic SilcoTek® coatings repel moisture, preventing sample contamination and test failures.