CeO2 Nanoparticles for the Protection of Photosynthetic Organisms Immobilized in Silica Gels

被引：40

作者：

Sicard, Clemence ^{[2
,3
]}

Perullini, Mercedes ^{[1
]}

Spedalieri, Cecilia ^{[1
]}

Coradin, Thibaud ^{[2
]}

Brayner, Roberta ^{[3
]}

Livage, Jacques ^{[2
]}

Jobbagy, Matias ^{[1
]}

Bilmes, Sara A. ^{[1
]}

机构：

[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Lab Superficies & Mat Func INQUIMAE DQIAQF, Buenos Aires, DF, Argentina

[2] Univ Paris 06, UPMC, CNRS, Coll France, F-75005 Paris, France

[3] Univ Paris Diderot, CNRS 7086, F-75205 Paris, France

来源：

CHEMISTRY OF MATERIALS | 2011年 / 23卷 / 06期

关键词：

bio-materials; bio-mimetic materials; nanomaterials; nanoparticles; sol-gel chemistry; sol-gel processing; SOL-GEL; LIVING BACTERIA; ENCAPSULATION; MATRICES; CELLS; STRESS; VIABILITY; MECHANISM; BIOCERS; ROUTE;

D O I：

10.1021/cm103253w

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Synthetic cytocompatible CeO2 nanoparticles embedded in transparent silica hydrogels are useful for creating inorganic supports favoring the long-term entrapment of living Chlorella vulgaris cells. The key protective role of nanoparticles is twofold: (1) They efficiently absorb harmful UV radiation without scattering the useful visible one. (2) They limit oxidative stress damage, such as that induced by H2O2, thanks to the surface redox Ce3+-Ce4+ reactivity of nanoparticles.

引用

页码：1374 / 1378

页数：5

共 40 条

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[2]

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