Porphyrin-based photocatalytic lithography

Jane P. Bearinger, Gary Stone, Allen T. Christian, Lawrence Dugan, Amy L. Hiddessen, Kuang Jen J. Wu, Ligang Wu, Julie Hamilton, Cheryl Stockton, Jeffrey A. Hubbell

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Photocatalytic lithography couples light with photoreactive coated mask materials to pattern surface chemistry. We excite porphyrins to create radical species that photocatalytically oxidize, and thereby pattern, chemistries in the local vicinity. The technique advantageously is suited for use with a wide variety of substrates. It is fast and robust, and the wavelength of light does not limit the resolution of patterned features. We have patterned proteins and cells to demonstrate the utility of photocatalytic Holography in life science applications.

Original languageEnglish (US)
Pages (from-to)5179-5184
Number of pages6
Issue number9
StatePublished - May 6 2008
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry


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