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Fig. 1 | Journal of Biological Engineering

Fig. 1

From: Gold nanoparticle-labeled biosensor for rapid and sensitive detection of bacterial pathogens

Fig. 1

Schematic of the gold nanoparticle (AuNP)-labeled biosensor. Target cells in a sample were captured by magnetic nanoparticle (MNP)-antibody (Ab) conjugates and separated by a magnet. Then the cells were labeled with AuNPs. The MNP-Ab-cell-Ab-AuNP complexes were transferred onto a screen printed carbon electrode that is a chip connected to a potentiostat for electrochemical measurement

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