WESTAR-TAB is a unique, innovative product line of ECL substrates for Western blotting in a single-use tab format. Designed to be compact and light, with sustainable water use and no possible contamination of
the solutions before use, WESTAR-TAB represents a cutting-edge approach to ecological and responsible Western blotting.

The WESTAR-TAB concept allows sensible reductions in the use of paper (-72%) and plastics (-81%) compared to the equivalent kit in liquid format. This minimal kit is more compact, 74% smaller, and 85% lighter, leading to a decrease in CO2 emissions in the kit distribution. Optimisation in water use, a fundamental aspect of the green approach, is another target of this format. Dedicated and limited pure water use in each lab at the moment of the test replaces a single large production of ultra-pure water at the manufacturing facility. Sustainable and waste-free sharing in the exploitation of this vital commodity is possible.

The kit consists of twenty tabs of peroxide solution and twenty tabs of luminol solution, equivalent to a one-hundred millilitre (100 mL) kit in liquid format. Two tablets, one per solution, dissolved in five (5) millilitres of pure water, are valid for a fifty (50) cm2 membrane. Dissolving takes less than ten (10) minutes on a shaker and can be carried out while secondary antibodies are incubated, not affecting the test timing. The shelf life is one year at RT (15–25°C) from delivery, and shipping conditions are at RT (15–25°C).

The product line currently includes a top-performing product, WESTAR-TAB SUPER, whose performance is comparable to all the competitors’ top-level ECL substrates. A mid-level kit, with extended signal duration,
WESTAR-TAB EXTEND, will be added shortly to the product line.