Photomechanical transcutaneous delivery of macromolecules

Shun Lee, Daniel J. McAuliffe, Thomas J. Flotte, Nikiforos Kollias, Apostolos G. Doukas

Research output: Contribution to journalArticlepeer-review

91 Scopus citations


Transcutaneous drug delivery has been the subject of intensive research. In certain situations, rapid transcutaneous delivery is very desirable. A mechanical (stress) pulse generated by a single laser pulse was shown to transiently increase the permeability of the stratum corneum in vivo. The barrier function of the stratum corneum recovers within minutes. The increased permeability during these few minutes allows macromolecules to diffuse through the stratum corneum into the viable epidermis and dermis. Macromolecules (40 kDa dextran and 20 nm latex particles) were deposited into the skin using a photomechanical pulse generated by a single 23 ns laser pulse. This treatment can potentially be utilized in therapies that currently require occlusive dressings for hours or day(s).

Original languageEnglish (US)
Pages (from-to)925-929
Number of pages5
JournalJournal of Investigative Dermatology
Issue number6
StatePublished - 1998


  • Photoacoustics
  • Shock waves
  • Stress waves
  • Transdermal drug delivery

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Dermatology
  • Cell Biology


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