Literature DB >> 22287935

Titanium doping reduces superoxide dismutase activity, but not oxidase activity, of catalytic CeO(2) nanoparticles.

Aiping Zhu1, Kai Sun, Howard R Petty.   

Abstract

In this paper we report the enzymatic properties of Ti-doped CeO(2) nanoparticles. The superoxide dismutase activity of Ti-doped nanoparticles is reduced in comparison to undoped nanoceria. In contrast, the oxidase activity of these nanoparticles was unchanged. The change in enzymatic activity was accompanied by a dramatic change in shape to a spherical nanostructure. In addition to reporting a new type of enzymatically-active nanoparticle, Ti-doped cerium oxide nanoparticles are well suited for biological applications.

Entities:  

Year:  2012        PMID： 22287935      PMCID： PMC3265136          DOI： 10.1016/j.inoche.2011.10.034

Source DB:  PubMed          Journal:  Inorg Chem Commun        ISSN： 1387-7003            Impact factor:   2.495


  16 in total

1.  Catalytic nanomotors: autonomous movement of striped nanorods.

Authors:  Walter F Paxton; Kevin C Kistler; Christine C Olmeda; Ayusman Sen; Sarah K St Angelo; Yanyan Cao; Thomas E Mallouk; Paul E Lammert; Vincent H Crespi
Journal:  J Am Chem Soc       Date:  2004-10-20       Impact factor: 15.419

2.  Cerium and yttrium oxide nanoparticles are neuroprotective.

Authors:  David Schubert; Richard Dargusch; Joan Raitano; Siu-Wai Chan
Journal:  Biochem Biophys Res Commun       Date:  2006-02-03       Impact factor: 3.575

3.  Intrinsic peroxidase-like activity of ferromagnetic nanoparticles.

Authors:  Lizeng Gao; Jie Zhuang; Leng Nie; Jinbin Zhang; Yu Zhang; Ning Gu; Taihong Wang; Jing Feng; Dongling Yang; Sarah Perrett; Xiyun Yan
Journal:  Nat Nanotechnol       Date:  2007-08-26       Impact factor: 39.213

Review 4.  Inside the neutrophil phagosome: oxidants, myeloperoxidase, and bacterial killing.

Authors:  M B Hampton; A J Kettle; C C Winterbourn
Journal:  Blood       Date:  1998-11-01       Impact factor: 22.113

5.  Nanoceria exhibit redox state-dependent catalase mimetic activity.

Authors:  Talib Pirmohamed; Janet M Dowding; Sanjay Singh; Brian Wasserman; Eric Heckert; Ajay S Karakoti; Jessica E S King; Sudipta Seal; William T Self
Journal:  Chem Commun (Camb)       Date:  2010-03-11       Impact factor: 6.222

6.  Cerium oxide and platinum nanoparticles protect cells from oxidant-mediated apoptosis.

Authors:  Andrea Clark; Aiping Zhu; Kai Sun; Howard R Petty
Journal:  J Nanopart Res       Date:  2011-10       Impact factor: 2.253

7.  Mitochondrial reactive oxygen species trigger calcium increases during hypoxia in pulmonary arterial myocytes.

Authors:  Gregory B Waypa; Jeremy D Marks; Mathew M Mack; Chan Boriboun; Paul T Mungai; Paul T Schumacker
Journal:  Circ Res       Date:  2002-10-18       Impact factor: 17.367

Review 8.  Mitochondrial reactive oxygen species-mediated signaling in endothelial cells.

Authors:  David X Zhang; David D Gutterman
Journal:  Am J Physiol Heart Circ Physiol       Date:  2007-01-19       Impact factor: 4.733

9.  In vitro free radical scavenging activity of platinum nanoparticles.

Authors:  Aki Watanabe; Masashi Kajita; Juewon Kim; Atsuhiro Kanayama; Kyoko Takahashi; Tadahiko Mashino; Yusei Miyamoto
Journal:  Nanotechnology       Date:  2009-10-16       Impact factor: 3.874

10.  Oxidase-like activity of polymer-coated cerium oxide nanoparticles.

Authors:  Atul Asati; Santimukul Santra; Charalambos Kaittanis; Sudip Nath; J Manuel Perez
Journal:  Angew Chem Int Ed Engl       Date:  2009       Impact factor: 15.336
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  3 in total

1.  Titanium-doped cerium oxide nanoparticles protect cells from hydrogen peroxide-induced apoptosis.

Authors:  Andrea Clark; Aiping Zhu; Howard R Petty
Journal:  J Nanopart Res       Date:  2013-12-01       Impact factor: 2.253

2.  The Yin: An adverse health perspective of nanoceria: uptake, distribution, accumulation, and mechanisms of its toxicity.

Authors:  Robert A Yokel; Salik Hussain; Stavros Garantziotis; Philip Demokritou; Vincent Castranova; Flemming R Cassee
Journal:  Environ Sci Nano       Date:  2014-10-01

Review 3.  Hazardous Effects of Titanium Dioxide Nanoparticles in Ecosystem.

Authors:  Syed Niaz Ali Shah; Zahir Shah; Muzammal Hussain; Muzaffar Khan
Journal:  Bioinorg Chem Appl       Date:  2017-03-08       Impact factor: 7.778
  3 in total

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