Self-doped rutile titania with high performance for direct and ultrafast assay of H2O2

Shu Sheng Pan, Wei Lu, Yi Hua Zhao, Wei Tong, Ming Li, Li Min Jin, Jin Yuk Choi, Fei Qi, Shi Guo Chen, Lin Feng Fei, Siu Fung Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)

Abstract

Detection of H2O2is important for the applications in environmental protection, pharmaceutical industries, food production, and clinical control. Current colorimetric assay of H2O2based on enzyme or nanomaterials always needs TMB or other peroxidase substrate as coloration species. Furthermore, the corresponding response time including incubation process is in order of minute. In this study, we report on the synthesis of heavily Ti3+-doped TiO2composed of spherelike nanoparticles by pulsed laser ablation method. This TiO2can directly detect H2O2without using TMB or any other peroxidase substrate and is free from incubation process. In addition, the detection sensitivity is compatible with or better than that of the natural enzyme or other nanomaterials. Hence, the self-doped TiO2nanoparticles provide a novel, direct, ultrafast approach for H2O2assay application.
Original languageEnglish
Pages (from-to)12784-12788
Number of pages5
JournalACS Applied Materials and Interfaces
Volume5
Issue number24
DOIs
Publication statusPublished - 26 Dec 2013

Keywords

  • Absorption
  • H O assay 2 2
  • Nanotechnology
  • Ti self-doping 3+
  • Titanium oxide

ASJC Scopus subject areas

  • Materials Science(all)

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