2024-03-28T19:12:07Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/485642022-11-17T02:08:08Zhdl_2115_20042hdl_2115_136The bactericidal effect of carbon nanotube/agar composites irradiated with near-infrared light on Streptococcus mutansAkasaka, TsukasaMatsuoka, MakotoHashimoto, TakeshiAbe, ShigeakiUo, MotohiroWatari, FumioCarbon nanotubesStreptococcus mutansbactericidal activitynear-infrared light435Dental 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.ElsevierJournal Articleapplication/pdfhttp://hdl.handle.net/2115/48564https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/48564/1/Akasaka20120314_3.pdf0921-5107AA10720431Materials Science and Engineering: B1731-31871902010-10enginfo:doi/10.1016/j.mseb.2010.01.001author