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. 2018 Jan 17;9(1):32. doi: 10.3390/mi9010032

Figure 1.

Figure 1

Representative μPAD applications. (A) Bidirectional lateral flow bioactive paper sensor. Adapted with permission from Reference [34]. Copyright 2009 American Chemical Society. (B) Scanning electron microscope photos of native chromatograph paper (top) and molecularly imprinted polymer coated chemiluminescence device. Adapted with permission from Reference [36]. (C) Alkylsilane self-assembling and UV/O3-patterning fabricated nitrite assay based on Griess reaction. Reprinted with permission from reference [39]. Copyright 2013 American Chemical Society. (D) Electrochemical and colorimetric dual sensor for simultaneous determination of lead, cadmium and copper. Reprinted with permission from reference [40].