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Figure 1 | Malaria Journal

Figure 1

From: Laboratory evaluation on the sensitivity and specificity of a novel and rapid detection method for malaria diagnosis based on magneto-optical technology (MOT)

Figure 1

(a) Schematic diagram of the diagnostic device, a sample cell containing a lysed blood sample is placed within the poles of a magnet supplying a magnetic field up to 0.6 Tesla. A polarised laser beam passes through the sample and the transmitted intensity is recorded using a photodetector. The intensity is recorded against time with and without a magnetic field. If haemozoin crystals are present, the transmitted intensity is magnetic field dependent. (b) When no magnetic field is applied, crystals are randomly orientated and a base line intensity is recorded (c) In a magnetic field, the crystals become aligned along the direction of applied field, inducing as an increase in recorded intensity [9].

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