Fig. 4 | Scientific Reports

Fig. 4

From: Sensitive and quantitative biosensing technique based on NV centres-doped nanodiamonds applied to lateral flow assays

Fig. 4

a Photograph of the plastic cassette containing the LFA strip. ND functionalised against the targeted biomarker are first deposited on the conjugate pad of the strip. The liquid sample to be tested is deposited at the beginning of the strip (sample pad), indicated by the black arrow. b Photograph of a first overview of an NV-based LFA reader prototype, with an aluminium casing.

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