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Figure 4
(a) Schematic illustration of the procedure to print regularly arrayed PLL spots onto carbon-coated SiN membranes by electrospraying the PLL solution with a commercially available holey SiN plate. The scanning electron micrograph of the holey SiN plate is displayed on the left (Norcada, Canada). Schematic illustrations of dispersing biological specimens, such as cyanobacteria cells on membranes with regularly printed PLL spots (b) and with a uniform PLL layer (c). The photographs on the right were taken after blotting by using the optical microscope IX71 in the phase-contrast mode.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 23| Part 4| July 2016| Pages 975-989
https://doi.org/10.1107/S1600577516007736
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