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

Titanium doping reduces superoxide dismutase activity, but not oxidase activity, of catalytic CeO(2) nanoparticles.
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DOI:
10.1016/j.inoche.2011.10.034
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发表时间:
2012-01-01
影响因子:
3.8
通讯作者:
Petty, Howard R.
Petty, Howard R.
中科院分区:
化学4区
文献类型:
--
作者:
Zhu, Aiping;Sun, Kai;Petty, Howard R.

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本文报道了ti掺杂CeO2纳米颗粒的酶促性质。钛掺杂纳米粒子的超氧化物歧化酶活性与未掺杂纳米粒子相比降低。相比之下,这些纳米颗粒的氧化酶活性没有变化。酶活性的变化伴随着球形纳米结构的巨大变化。除了报道一种新型的酶活性纳米颗粒外,ti掺杂的氧化铈纳米颗粒也非常适合于生物应用。
In this paper we report the enzymatic properties of Ti-doped CeO2 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.
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