Preparation, Characterization and Application of Modified Surfaces with 3,5-Bis(3,5-dinitrobenzoylamino) benzoic acid

被引：5
作者：
Paez, Julieta I. [1 ]
Cappelletti, Ariel L. [1 ]
Baruzzi, Ana M. [2 ]
Brunetti, Veronica [2 ]
Strumia, Miriam C. [1 ]
机构：
[1] Univ Nacl Cordoba, Dept Quim Organ IMBIV CONICET, Fac Ciencias Quim, RA-5000 Cordoba, Argentina
[2] Univ Nacl Cordoba, Dept Fisicoquim INFIQC CONICET, Fac Ciencias Quim, RA-5016 Cordoba, Argentina
来源：
MACROMOLECULAR SYMPOSIA | 2010年 / 290卷
关键词：
dendritic molecules; electrochemistry; maghemite; magnetic nanoparticles; self-assembly; IRON-OXIDE NANOPARTICLES; TRANSFER RADICAL POLYMERIZATION; MAGNETIC NANOPARTICLES; HYDROGEN-PEROXIDE; CARBON NANOTUBES; DENDRIMERS; GOLD; MICROSPHERES; MONOLAYERS; CHEMISTRY;
D O I：
10.1002/masy.201050405
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The spontaneous adsorption of the dendron 3,5-Bis (3,5-dinitrobenzoylamino) benzoic acid (D-NO2) onto gold and carbon electrodes produced conductive surfaces with electroactive chemical functions. A comparative electrochemical behavior of both electrodes after dendron immobilization led us to conclude that the self-assembly of D-NO2 on carbon is faster and stronger. Considering this advantage, the surface of magnetic maghemite nanoparticles (MNPs) was modified using D-NO2. Firstly, MNPs were modified with APS as silane coupling agent and afterwards, D-NO2 was covalently attached to the surface, achieving nitro-functionalized MNPs. Subsequently, the immobilization of these modified MNPs onto glassy carbon surfaces was explored to generate a novel platform promising for biosensors development.
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页码：37 / 45
页数：9
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