Colorimetric techniques have been developed and used in routine analyses for over a
century and apparently all their potentialities have been exhaustively explored. However …

Paper has been used as a substrate material in analytical testing for centuries, with scientific
reports dating back to the early 1800s with litmus paper. 1 As a substrate material, paper …

Ammonia production is an energy-intensive process while nitrite ions are a substantial
environmental pollutant, therefore the conversion of nitrite ions (NO 2-) into ammonia (NH 3) …

Rapid, precise, and reproducible deposition of a broad variety of functional materials,
including analytical assay reagents and biomolecules, has made inkjet printing an effective …

Chemical analysis based on colour changes recorded with imaging devices is gaining
increasing interest. This is due to its several significant advantages, such as simplicity of …

Water pollution is a serious environmental problem affecting millions of people, and the
demand for frequent water quality monitoring is increasing. The need for analytical platforms …

Inkjet printing is emerging at the forefront of biosensor fabrication technologies. Parallel
advances in both ink chemistry and printers have led to a biosensor manufacturing …

Microfluidic paper-based devices (μPADs) and wearable devices have been highly studied
to be used as diagnostic tools due to their advantages such as simplicity and ability to …

The field of paper-based microfluidics has experienced rapid growth over the past decade.
Microfluidic paper-based analytical devices (μPADs), originally developed for point-of-care …