About Us

Invignome was established in 2009.

GnomePens classic, flat and mini PAP pens (left to right)

As scientists who perform Immunohistochemistry (IHC) we were long frustrated by hydrophobic pens that did not meet basic performance demands. So we developed our own PAP Pen for IHC or IFA. 

Our journey started with a list of basic qualities needed: longevity, detergent resistance, a range of colors, price. After more than three years of development and rigorous testing our Barrier Paste was born. The product met and exceeded our best expectations and outperforms any PAP pen hydrophobic pen on the market. BarrierPaste proved itself , as a very effective hydrophobic barrier and resistant to every detergent tested.

The roller pen applicator of our newer products is user-friendly and produces a smooth and fine hydrophobic barrier in any desired pattern on a single slide. With the multiple colors to choose from, users can customize and color code treatments, antibodies and controls on a single slide or multiple slides.

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