A nanofountain probe with Sub-100 nm molecular writing resolution

Keun Ho Kim*, Nicolaie Moldovan, Horacio D. Espinosa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

120 Scopus citations


The novel microfluidic atomic force microscope probe known as 'Nanofountain Probe' (NFP), comprises a volcano tip, integrated microchannels, and an on-chip reservoir. The standard surface micromachining procedures are used for microfabricating the nanofountain probe. Writing experiments were performed for demonstrating the capabilities of NFP device, where the ink in ethanol concentration of 1 mm was supplied via the on-chip reservoir to the dispensing tip by capillary action. The NFP was used several times to generate lines and can be used with multiple ink feeds of same solution over a day without cleaning. A sub-100 nm molecular patterning has been achieved in fountain- pen writing mode with an AFM probe integrated with a volcano tip, microchannels, and a reservoir. The result show that standard microfabrication technique were used, which allow fabrication of massively parallel fountain probe arrays and integration of multiple reservoirs for sub-100nm patterning over large areas.

Original languageEnglish (US)
Pages (from-to)632-635
Number of pages4
Issue number6
StatePublished - May 2005


  • Atomic force microscopy
  • Microfabrication
  • Molecular writing
  • Nanolithography
  • Patterning

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)


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