The bactericidal effect of carbon nanotube/agar composites irradiated with near-infrared light on Streptococcus mutans

• Akasaka, Tsukasa

• Matsuoka, Makoto

• Hashimoto, Takeshi

• Abe, Shigeaki

• Uo, Motohiro

• Watari, Fumio

Abstract

Dental caries are mainly associated with oral pathogens, and Streptococcus 2 mutans is a primary cariogenic organism. Many methods have been established to eliminate S. mutans from the oral cavity. This study aimed to evaluate the effect of carbon nanotube (CNT)/agar composites irradiated with near-infrared (NIR) light on S. mutans, as a potential photothermal antimicrobial nanotherapy. A colony-forming unit assay clearly showed that CNT/agar composites attain bactericidal activity after NIR light irradiation; this bactericidal activity is higher than that of graphite (GP)/agar and activated carbon (AC)/agar composites. Furthermore, it was observed that longer irradiation times immobilized S. mutans in the CNT/agar composite.

Journal

• Materials Science and Engineering: B

  Materials Science and Engineering: B 173 (1-3), 187-190, 2010-10

  Elsevier

Keywords

• Carbon nanotubes
• Streptococcus mutans
• bactericidal activity
• near-infrared light

Details

• CRID: 1050845763940726656
• NII Article ID: 120003878529
• NII Book ID: AA10720431
• HANDLE: 2115/48564
• ISSN: 09215107
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles
  • KAKEN