The sensor used porphyrazines, pH-sensitive dyes, and silver nanoparticles (AgNPs) to detect variations in salivary composition between diabetics and non-diabetics.

We report a protocol for the amplified detection of target DNA by using a chronocoulometric DNA sensor (CDS). Electrochemistry is known to be rapid, sensitive and cost-effective; it thus offers a ...

Dr Yingfu Li, professor at McMaster University, and his team created a test for E. coli based on the Litmus test for pH. The test is a colorimetric sensor where existing Litmus dyes and pH papers ...