CW/pulsed NIR irradiation of gold nanorods: Effect on transdermal protein delivery mediated by photothermal ablation

Hengmin Tang, Hiroaki Kobayashi, Yasuro Niidome, Takeshi Mori, Yoshiki Katayama, Takuro Niidome

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Transdermal delivery is a useful and attractive method for drug delivery, even though the stratum corneum is a major barrier of protein translocation into the skin. To achieve protein delivery through the stratum corneum, we first cast gold nanorods, acting as a heating device in response to near-infrared light irradiation, onto the skin surface. After applying an aqueous solution of ovalbumin to the skin, the skin was irradiated by near-infrared laser light. Irradiation of the skin using a continuous-wave laser increased the skin temperature resulting in an efficient translocation of ovalbumin into the skin. Furthermore, migration of inflammation cells and induction heat shock protein 70 (HSP70) were observed. Irradiation of the skin using a pulsed laser caused an enhanced permeability of the stratum corneum without an increase in skin temperature, migration of inflammation cells, or HSP70 induction. This effect is due to the pulsed-laser irradiation increasing the temperature of a limited part of the skin surface. Thus, the physiological response of skin is dependent on the type of laser light used. It is anticipated that this phenomenon will find wide application in such applications as, for example, general transdermal protein delivery and transdermal vaccination.

Original languageEnglish
Pages (from-to)178-183
Number of pages6
JournalJournal of Controlled Release
Volume171
Issue number2
DOIs
Publication statusPublished - Jan 1 2013

Fingerprint

Nanotubes
Gold
Skin
Lasers
Proteins
Cornea
HSP70 Heat-Shock Proteins
Skin Temperature
Ovalbumin
Light
Cell Movement
Inflammation
Protein Transport
Heating
Permeability
Vaccination
Equipment and Supplies
Temperature

All Science Journal Classification (ASJC) codes

  • Pharmaceutical Science

Cite this

CW/pulsed NIR irradiation of gold nanorods : Effect on transdermal protein delivery mediated by photothermal ablation. / Tang, Hengmin; Kobayashi, Hiroaki; Niidome, Yasuro; Mori, Takeshi; Katayama, Yoshiki; Niidome, Takuro.

In: Journal of Controlled Release, Vol. 171, No. 2, 01.01.2013, p. 178-183.

Research output: Contribution to journalArticle

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