| http://www.w3.org/ns/prov#value | - The process according to claim 12, wherein the polyelectrolyte is an organic polymer selected from bio-degradable polymers, especially polyglycolic acid (PGA), polylactic acid (PLA), polyamides, poly-2-hydroxy butyrate (PHB), polycaprolactone (PCL), poly (lactic-co-glycolic) acid (PLGA), fluorescent labelled polymers, conducting polymers, liquid crystal polymers, photo conducting polymers, photoch
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