Zirconia-Based Magnetoplasmonic Nanocomposites: A New Nanotool for Magnetic-Guided Separations with SERS Identification

被引：15

作者：

Del Tedesco, Anna ^{[1
,2
]}

Piotto, Valentina ^{[3
]}

Sponchia, Gabriele ^{[1
]}

Hossain, Khohinur ^{[1
]}

Litti, Lucio ^{[3
]}

Peddis, Davide ^{[4
,5
]}

Scarso, Alessandro ^{[1
]}

Meneghetti, Moreno ^{[3
]}

Benedetti, Alvise ^{[1
]}

Riello, Pietro ^{[1
]}

机构：

[1] Univ Ca Foscari Venezia, Dept Mol Sci & Nanosyst, I-30170 Venice, Italy

[2] Natl Canc Inst CRO IRCSS, Dept Translat Res, I-33081 Aviano, Italy

[3] Univ Padua, Dept Chem Sci, Nanostruct & Opt Lab, I-35131 Padua, Italy

[4] CNR, Inst Struct Matter, I-00015 Rome, Italy

[5] Univ Genoa, Dept Chem & Ind Chem, I-16146 Genoa, Italy

来源：

ACS APPLIED NANO MATERIALS | 2020年 / 3卷 / 02期

关键词：

zirconia nanoparticles; CoFe2O4; nanoparticles; bis(phosphonic acid); gold nanoparticles; magnetic sorting; SERS; IRON-OXIDE; PLASMONIC NANOSTRUCTURES; SILICA NANOPARTICLES; GOLD; CORE; ZRO2; MOLECULES; TOXICITY; SIZE; IRRADIATION;

D O I：

10.1021/acsanm.9b01982

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the field of nanomaterials, multifunctional nanosystems play a prominent role in many applications as new magnetically recoverable catalysts, information processing, fuel cells, efficient bio/nanosensors, and nanomedicine. Aiming at the obtainment of new nanomaterials for biotechnological applications such as biosensors or theragnostic systems, we present a multifunctional system able to merge different properties in only one nanotool. The system is prepared by loading the pores of mesoporous zirconia nanoparticles with CoFe2O4, by a wet impregnation method, further modifying the surface of the material with bis(phosphonic acid) to load gold nanoparticles, produced by laser ablation. The obtained nanocomposite functionalized with a SERS probe represents a specific example of a magnetoplasmonic nanosystem. The results show the efficacy of the strategy of exploiting mesoporous zirconia nanoparticles for obtaining magnetoplasmonic nanotools.

引用

页码：1232 / 1241

页数：19

共 75 条

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