Ink formulations for printing and manufacture of reactive chemical sensors

Abstract

Provided herein, inter alia, are solvent and resin formulations comprising reduced fire and environmental risk, methods for producing sensor device for detection of any analyte, e.g., by printing reactive chemicals and dyes onto a substrate using large scale printing machines. Also provided is a method of preparing the reduced risk formulations and sensor device, and methods of using the sensor device. Further provided is a sensor system including an ink and a solid support. The ink includes at least one reactive chemical or dye, a co-solvent, and a resin composition chosen for reduced fire and environmental impact risk. The ink is applied (e.g., printed) on a surface of the solid support. The reactive chemical or dye is configured to undergo a chemical reaction with gunshot residue (e.g., post blast residues associated with historical and modern day black powders used in bullet manufacture) that produces a presumptive colorimetric indication.

Dependencies are inferred from the claim text.