Sensor promises disease detection with naked eye
British scientists have come up with a super-sensitive prototype sensor that lets doctors detect early stage diseases with the naked eye, an innovation that could prove valuable in countries that lack the resources for expensive diagnostic equipment.
The sensor, created at Imperial College London, relies on nanotechnology to analyze serum derived from blood samples.
A positive reaction to p24, a protein that indicates early HIV infection, or PSA, a protein that at certain levels can indicate prostate cancer, generates irregular clumps of nanoparticles that emit a blue color in a solution kept in a disposable container.
A negative reaction, however, … Read more