Pesticides on your food can be harmful and toxic to your health. Unless you eat organic food that hasn’t come into contact with other produce you may want to check out a food analyzing technology to see how toxic it is before you buy it.
There is a new technology that allows you to use paper sensors that are able to analyze your food using an Android program. The system will help you detect harmful toxins quickly and cheaply! The National University of Singapore with the Hefei University of Technology in China, have developed a portable detection system with a simple paper sensor that will work with your smartphone. The new technology will allow a simple paper sensor to pick up the signals and detect pesticide residue on produce.
The researchers use nanoparticles to shine a fluorescent signal on the paper to detect the pesticide. Then they used a 3D printed piece of equipment made from a smartphone which they attached to a mini-laser. They also used a mini-cavity and an optical filter to read the data.
The last piece to the puzzle was to create android software that would quickly analyse the light particles and determine if there were toxins on your food.
The specialized paper is covered in copper ions, so when a sample is put on the paper the pesticide molecules will attach to the copper ions. The device will then shine a light onto the copper ion paper and pick up the data with the optical filter. The Smartphone software will then read the data based on the light that was emitted from the nanoparticles on the specialized paper.