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. Author manuscript; available in PMC: 2017 Jul 15.
Published in final edited form as: Nanotechnology. 2016 Jun 2;27(28):284002. doi: 10.1088/0957-4484/27/28/284002

Figure 5.

Figure 5

Cellphone-based colorimetric assay for peanut allergen conducted using a 3D-printed platform for sample handling. (a) A photograph of 3D-printed platform is connected to a smartphone for sample measurement. (b) An opto-mechanical attachment (dimensions: ~22 mm × 67 mm × 75 mm) equipped with light-emitting diodes enables colorimetric measurements by the cellphone camera. (c) A schematic diagram of the interface, depicting components of the opto-mechanical attachment. Reproduced from Reference 44 with permission of The Royal Society of Chemistry.