Microcontact printing

Creating the PDMS Master
Figure 1: PDMS master is created by patterning silicon, pouring and curing the PDMS, and peeling away from the substrate
Inking and Contact
Figure 2: Thiol is poured over the stamp and let dry. Conformal contact is made with the substrate and pattern is left behind.

Microcontact printing (or μCP) is a form of soft lithography that uses the relief patterns on a master polydimethylsiloxane (PDMS) stamp or Urethane rubber micro stamp[1] to form patterns of self-assembled monolayers (SAMs) of ink on the surface of a substrate through conformal contact as in the case of nanotransfer printing (nTP).[2] Its applications are wide-ranging including microelectronics, surface chemistry and cell biology.

  1. ^ "Research Micro Stamps". RMS. Retrieved 2021-08-21.
  2. ^ Smith, Rachel K.; Lewis, Penelope A.; Weiss, Paul S. (2004-06-01). "Patterning self-assembled monolayers". Progress in Surface Science. 75 (1–2): 34. Bibcode:2004PrSS...75....1S. doi:10.1016/j.progsurf.2003.12.001. ISSN 0079-6816.