Fig. 6From: Characterization and optimization of the haemozoin-like crystal (HLC) assay to determine Hz inhibiting effects of anti-malarial compoundsRaman spectra of HLC interactions with chloroquine. Haemozoin-like crystals (a), haemozoin-like crystals incubated with chloroquine (b), and chloroquine alone (c). Spectra were obtained using 632.8 nm laser excitation. Vertical lines indicate Raman line shifts. For a detailed description of line assignments see text and Additional file 5 Back to article page