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Fig. 3 | AMB Express

Fig. 3

From: Development of a new method based on unmodified gold nanoparticles and peptide nucleic acids for detecting bovine viral diarrhea virus-RNA

Fig. 3

Visual observation of PNA-AuNP colorimetric assay in presence of negative and positive samples. Upper row is negative samples from left to right, 1 mismatched DNA target, 2 deleted DNA target, 3 FMDV, 4 BoHV, 5 P. multocida, 6 E. coli O157:H7, 7 M. bovis, 8 BLV, and 9–11 negative field samples. Lower row is positive samples from left to right, 1 BVDV-NADL; 2 BVDV-2, 3–8 positive field samples, and 9–13 archived isolates

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