Visible light-mediated sustainable antibacterial activity and osteogenic functionality of au and pt multi-coated tio2 nanotubes

Kyoung Suk Moon, Young Bum Park, Ji Myung Bae, Eun Joo Choi, Seung Han Oh

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The visible light reactions of noble metal-based photocatalysts have been increasingly utilized to investigate their antibacterial activities. Furthermore, the photoreactions at various visible light wavelengths for specific combinations of titania nanotubes and noble metal nanoparticles have been found to promote osteogenic functionality. In this investigation, a novel multi-coating combination of noble metals (gold and platinum) on titania nanotubes was assessed using plasmonic photocatalysis and low-level laser therapy at 470 and 600 nm. The results showed that this coating on the nanotubes promoted antibacterial activity and osteogenic functionality. The order in which the gold and platinum coatings were layered onto the titania nanotubes strongly affected the osteogenic performance of the human mesenchymal stem cells. These results have identified a new approach for the development of efficient novel combinations of noble metal nanoparticles and titania nanotubes with visible light responses, sustainable antimicrobial activity, and osteogenic functionality.

Original languageEnglish
Article number5976
JournalMaterials
Volume14
Issue number20
DOIs
Publication statusPublished - 2021 Oct 2

Bibliographical note

Funding Information:
Funding: This work was supported by the National Research Foundation of Korea (NRF) (Grant No. 2019R1A2C1003249) which is funded by the Korea government (MSIT).

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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