Bifunctional, chemically patterned flat stamps for microcontact printing of polar inks

X. Duan, V.B. Sadhu, A. Perl, M. Péter, D.N. Reinhoudt, J. Huskens

Research output: Contribution to journalArticleAcademicpeer-review

19 Citations (Scopus)

Abstract

Different methods to create chemically patterned, flat PDMS stamps with two different chemical functionalities were compared. The best method for making such stamps, functionalized with 1H,1H,2H,2H-perfluorodecyltrichlorosilane (PFDTS) and 3-(aminopropyl)triethoxysilane (APTS), appeared to be full functionalization of a freshly oxidized flat PDMS stamp with either adsorbate, followed by renewed oxidation through a mask and attachment of the other adsorbate. These stamps were used to transfer polar inks (a thioether-functionalized dendrimer and a fluorescent dye) by microcontact printing. The PFDTS monolayer was used as a barrier against ink transfer, while the APTS SAM areas functioned as an ink reservoir for polar inks. The printing results confirmed the excellent transfer of hydrophilic inks with these stamps to gold and glass substrates, even from aqueous solutions. Attachment of a fluorescent dye on the amino-functionalized regions shows the possibility of the further modification of the chemically patterned stamps for tailoring of the stamps' properties.
Original languageEnglish
Pages (from-to)3621-3627
Number of pages8
JournalLangmuir
Volume24
Issue number7
DOIs
Publication statusPublished - 2008

Keywords

  • EC Grant Agreement nr.: FP6/500120

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