Skip to main content
. 2011 Mar 21;30(6):887–898. doi: 10.1016/j.trac.2011.01.019

Figure 1.

Figure 1

The biosensor as the basis of analysis in many point-of-care testing (POCT) instruments. Note that the recognition layer may comprise attached recognition elements (antibodies, receptors, aptamers …) or immobilized enzymes. In the latter case, the addition of substrates is essential. Not illustrated is the fact that the amplified signal is finally processed by microelectronics and displayed.