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Multi-ink pattern generation by dip-pen nanolithography.

Jae-Won Jang1, Alexander Smetana, Paul Stiles

  • 1NanoInk Inc., Skokie, Illinois, USA. jjang@nanoink.net

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|January 14, 2010
PubMed
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Dip-pen nanolithography (DPN) precisely patterns multiplexed hydrogels and phospholipids with fluorescent dyes. This technique enables multi-ink printing at the micron and subcellular scales for advanced bio-materials applications.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Biotechnology

Background:

  • Precise patterning of materials at the nanoscale is crucial for advanced applications.
  • Hydrogels and phospholipids are key biomaterials with diverse functionalities.
  • Current methods may lack the resolution or multiplexing capability for complex structures.

Purpose of the Study:

  • To demonstrate the capability of dip-pen nanolithography (DPN) for multiplexed patterning of hydrogels and phospholipids.
  • To achieve high-resolution, multi-ink patterns with precise alignment.
  • To explore the potential of DPN for subcellular-scale bio-materials printing.

Main Methods:

  • Utilized dip-pen nanolithography (DPN) as the primary patterning technique.
  • Employed fluorescently labeled hydrogels and dye-doped phospholipids as inks.

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  • Patterned multiple distinct materials within a confined micron-scale area.

    • Main Results:

    • Successfully created multiplexed dot arrays of four different dye-labeled hydrogels within a 50x50 micrometer area.
    • Patterned two different dye-doped phospholipid dots and letters with line widths below 1 micrometer.
    • Demonstrated precise alignment and micron-scale printing capabilities for multi-ink patterns.

    Conclusions:

    • Dip-pen nanolithography (DPN) is a versatile technique for creating complex, multiplexed patterns of hydrogels and phospholipids.
    • DPN offers high resolution and precise positioning control, suitable for micron-scale and subcellular-scale applications.
    • This methodology holds significant potential for advancing bio-materials printing and nanotechnology.