Figures & data
Figure 1. Schematic representation of a DNA barcode encapsulated in a sugar particle.
Figure 2. Schematic of the aerosol test particle generation process.
Figure 3. Micrographs from SEM analyses of maltodextrin microparticles generated using the spray dryer. (a) Displays the general characteristics of the microparticle population at 250X and (b) shows the size and morphology of individual microparticles at 1200X. A comparison of the microparticle size-distributions measured from the SEM image (a) and the APS is shown in (c).
Figure 4. Photograph showing release of 1 g of DNA-barcoded aerosol test particles in a building hallway.
Figure 5. (a) Number of aerosol test particles detected on DFU filters at various distances and directions from the release point. Note the y-axis is a base-10 logarithmic scale. (b) Schematic of the release hallway and cross hallways on the same distance scale as (a). Note that the release occurred at the 0 distance point with the nozzle pointing to the right of the figure.
