We demonstrate the application of a cellphone-based polarizing microscope for the detection of minute concentrations of hemozoin – the malaria pigment – and β-hematin – the synthesized equivalent of hemozoin. Hemozoin concentrations as low as 0.75 μg/ml were detectable in malaria-infected human blood samples, demonstrating that the cellphone probe can offer malaria detection at very low parasitemia of 0.25%.

© 2013 Optical Society of America

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