Researchers report that the colorful patterns in their inexpensive and durable paper-based sensor array changed in the ...

Researchers have demonstrated that the sensor changes color in specific patterns in response to chemical vapors, producing ...

Mustard gas exposure is dangerous and traumatic – scientists are coming up with ways to detect its presence in the ...

The iodine changed color in one powder, but not in the other. Which do you think is probably a chemical change? The iodine and the cornstarch are probably the chemical change because the dramatic ...

A team of researchers has developed a new biosensor that turns the invisible signals into visible color changes to detect ...

The result of the chemical reaction is a color change in the lens. The very first photochromic lenses were made of glass and coated with silver chloride and silver halide, among other molecules.