CHEM-ENG590E Wiki Textbook:Microcontact Printing: Difference between revisions

CHEM-ENG590E Wiki Textbook:Microcontact Printing (view source)

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 Image: Fabricated nanocantilever array.png|'''Figure X.''' Salomon et al. fabrication an array of nanocantilevers on the scale of 10<sup>5</sup> nanocatilevers/cm<sup>2</sup>.
-Image: IgGandBSAPrinting.png|'''Figure X.''' Schematics of the NEMS functionalization process using a PDMS stamp; two approaches can be used: A. Surface functionalization by microcontact printing followed by blocking the remaining surfaces with a batch process. B. Surface functionalization and passivation both carried out by microcontact printing. (1) Inking the stamp with the desired molecules (IgG1). (2) Washing and drying the stamp. (3) Cleaning outside the stamp grooves, i.e. removing the molecules from the stamp base, by carrying multiple prints. (3B) Inking the stamp with the anti-fouling molecules (BSA). (4) Printing after aligning the stamp and the chip. (4A) Incubating the chip with the anti-fouling molecule (BSA). (5) Result of the NEMS biofunctionalization process.
+Image: IgGandBSAPrinting.png|'''Figure X.''' Two methods of printing were used, resulting in both inked surfaces of BSA underneath the cantilevers and solely around the cantilevers. (1) Inking the stamp with IgG. (2) Washing and drying the stamp. (3) Cleaning outside the stamp grooves. (3B) Inking the stamp with BSA. (4) Printing after aligning the stamp and the chip. (4A) Incubating the chip with BSA. (5) Result.
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