In a nutshell
P_sense is based on the use of tailor made building blocks (functional monomers) that selectively bind and signal the presence of phosphate anions, to produce Molecular Imprinted Polymers, or so-called “plastic antibodies“, for phosphate.
How does it look?
The extent of the colour change upon increasing the concentration of phosphate is demonstrated below. What you see is a series of vials containing our phosphate sensing polymer in the form of a fine powder, exposed to increasing concentrations of phosphate (left to right). Impressed? So are we!
There’s more! When exposed the polymers to a series of anions such as sulphate, nitrate and chloride, which is among the most abundant ions in surface waters P_sense does not change colour!