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Hydrophilic Poly(dimethylsiloxane) Stamps for Microcontact Printing
Author(s) -
Donzel C.,
Geissler M.,
Bernard A.,
Wolf H.,
Michel B.,
Hilborn J.,
Delamarche E.
Publication year - 2001
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200108)13:15<1164::aid-adma1164>3.0.co;2-s
Subject(s) - microcontact printing , materials science , pdms stamp , silicone , impression , polyethylene glycol , peg ratio , nanotechnology , polymer science , polymer chemistry , chemical engineering , composite material , computer science , fabrication , world wide web , medicine , alternative medicine , pathology , finance , engineering , economics
Poly(dimethylsiloxane) stamps for microcontact printing with polar inks ,which no longer need to be reactivated after each printing step, are revealed. The silicone surface is modified by linking a hydrophilic polyethylene glycol chain to SiOH groups created on the surface of the stamp. While stamps that are oxidized conventionally become useless 3 h after their preparation (Figure top), the PEG‐modified stamps can still print high‐quality patterns after 20 days (Figure bottom).