Sensor dyes for real-time sensing of metal ions in aqueous environments
AssigneeUWM Research Foundation, Inc.
InventorsAlan Schwabacher, Peter Geissinger, Trevor Hagemann, Sarah Oehm, Tyler G. Fenske
Life of this patent
Estimating the term…
Abstract
Sensors for detecting and distinguishing metals in a sample comprise phenol group-containing azo dyes, the phenol group having one hydroxy involved in reversible metal ion binding and a second hydroxy alkylated to an optically transparent substrate. The sensors have utility for detecting chromium, calcium, magnesium, copper, mercury, nickel, zinc, cobalt, manganese, cadmium, lead, tin, aluminum, potassium, sodium, or arsenic ions in a sample.
Claims12
A sensor comprising a panel, the panel comprising an optically transparent substrate and more than one dye of formula (IV) bound to the optically transparent substrate by a covalent linkage alkylated on a phenol group of the more than one dye of formula (IV), wherein each phenol group of the more than one dye of formula (IV) has a hydroxy involved in metal binding and a second hydroxy and is alkylated on the second hydroxy;
- wherein the dye of formula (IV) reversibly binds at least one metal ion;
- A-B (IV)
- wherein A is selected from the group consisting of:
- B is selected from the group consisting of:
- and
- R1, R2, R3, and R4 are independently selected from the group consisting of:
Dependencies are inferred from the claim text.