A new spin on old CDs

Thursday, 01 November, 2007


Scientists in Spain have found a way to recycle CDs, DVDs and disc players as portable substance analysers.

Dr Angel Maquieira and his team used a cheap, portable compact disc player and CDs to build an early model of a compact disc lab unit.

Maquieira coated an ordinary CD with special chemicals and three pesticides used to kill harmful insects. He put the CD into an ordinary CD player and pushed ‘play’. The laser light in the player that normally reads a CD could detect differences between each pesticide.

When the information from the CD player was sent to a computer, it correctly identified each pesticide.

The scientists believe that lots of other chemicals can be identified in the same way with these cheap, simple, recycled tools. And since CDs, DVDs and their players are so light and compact, they could be taken anywhere without much fuss.

The study will appear in the American Chemical Society’s journal Analytical Chemistry.

Related News

Fast, on-site detection of PFAS in the environment

Curtin University researchers have developed a new on-site method to immediately and accurately...

Handheld medical imaging device for high-res bedside scanning

A prototype medical imaging device can produce images down to resolutions of 1 to 2 µm...

Microscopic samples made to glow in the dark

Researchers have discovered a way to more accurately analyse microscopic samples by essentially...


  • All content Copyright © 2020 Westwick-Farrow Pty Ltd