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Multiplexed Lipid Dip-Pen Nanolithography on Subcellular Scales for the Templating of Functional Proteins and Cell Culture

Author:
  • Sylwia Sekula
  • Jeanette Fuchs
  • Susanne Weg-Remers
  • Peter Nagel
  • Stefan Schuppler
  • Joe Fragala
  • Nora Theilacker
  • Matthias Franueb
  • Christer Wingren
  • Peter Ellmark
  • Carl Borrebaeck
  • Chad A. Mirkin
  • Harald Fuchs
  • Steven Lenhert
Publishing year: 2008
Language: English
Pages: 1785-1793
Publication/Series: Small
Volume: 4
Issue: 10
Document type: Journal article
Publisher: John Wiley & Sons

Abstract english

Molecular patterning processes taking place in biological systems are challenging to study in vivo because of their dynamic behavior, subcellular size, and high degree of complexity. In vitro patterning of biomolecules using nanolithography allows simplification of the processes and detailed study of the dynamic interactions. Parallel dip-pen nanolithography (DPN) is uniquely capable of integrating functional biomolecules on subcellular length scales due to its constructive nature, high resolution, and high throughput. Phospholipids are particularly well suited as inks for DPN since a variety of different functional lipids can be readily patterned in parallel. Here DPN is used to spatially pattern multicomponent micro- and nano-structured supported lipid membranes and multilayers that are fluid and contain various amounts of biotin and/or nitrilotriacetic acid functional groups. The patterns are characterized by fluorescence microscopy and photoemission electron microscopy. Selective adsorption of functionalized or recombinant proteins based on streptavidin or histidine-tag coupling enables the semisynthetic fabrication of model peripheral membrane bound proteins. The biomimetic membrane patterns formed in this way are then used as substrates for cell culture, as demonstrated by the selective adhesion and activation of T-cells.

Keywords

  • Nano Technology
  • proteomics
  • phospholipids
  • dip-pen nanolithography
  • biomimetics
  • cell adhesion

Other

Published
  • ISSN: 1613-6829
Carl B
Carl Borrebaeck
E-mail: carl [dot] borrebaeck [at] immun [dot] lth [dot] se

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Department of Immunotechnology

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