The basic working principle of colorimetric sensing is colorimetry, which is a visible change in color that results from a chemical interaction between the sensing/detecting material and the target ...

(Nanowerk Spotlight) Over the past few years, the development of materials that act as chemical paints (i.e. coatings) by responding to a (bio)chemical parameter with a change in their optical ...

(Nanowerk Spotlight) Researchers from the Central University of Kerala, India, have developed a point-of-care, portable, rapid, and cost-effective test for clinical diagnosis of sodium, which uses a ...