Preparation, characterization and application of modified surfaces with 3,5-Bis(3,5-dinitrobenzoylamino) benzoic acid

Julieta I. Paez; Ariel L. Cappelletti; Ana M. Baruzzi; Verónica Brunetti; Miriam C. Strumia

doi:10.1002/masy.201050405

Preparation, characterization and application of modified surfaces with 3,5-Bis(3,5-dinitrobenzoylamino) benzoic acid

Julieta I. Paez, Ariel L. Cappelletti, Ana M. Baruzzi, Verónica Brunetti, Miriam C. Strumia^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

5 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	37-45
Number of pages	9
Journal	Macromolecular symposia
Volume	290
Issue number	1
DOIs	https://doi.org/10.1002/masy.201050405
Publication status	Published - Apr 2010
Externally published	Yes

Keywords

Dendritic molecules
Electrochemistry
Maghemite
Magnetic nanoparticles
Selfassembly
n/a OA procedure

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10.1002/masy.201050405

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title = "Preparation, characterization and application of modified surfaces with 3,5-Bis(3,5-dinitrobenzoylamino) benzoic acid",

abstract = "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.",

keywords = "Dendritic molecules, Electrochemistry, Maghemite, Magnetic nanoparticles, Selfassembly, n/a OA procedure",

author = "Paez, \{Julieta I.\} and Cappelletti, \{Ariel L.\} and Baruzzi, \{Ana M.\} and Ver{\'o}nica Brunetti and Strumia, \{Miriam C.\}",

year = "2010",

month = apr,

doi = "10.1002/masy.201050405",

language = "English",

volume = "290",

pages = "37--45",

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T1 - Preparation, characterization and application of modified surfaces with 3,5-Bis(3,5-dinitrobenzoylamino) benzoic acid

AU - Paez, Julieta I.

AU - Cappelletti, Ariel L.

AU - Baruzzi, Ana M.

AU - Brunetti, Verónica

AU - Strumia, Miriam C.

PY - 2010/4

Y1 - 2010/4

N2 - 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.

AB - 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.

KW - Dendritic molecules

KW - Electrochemistry

KW - Maghemite

KW - Magnetic nanoparticles

KW - Selfassembly

KW - n/a OA procedure

UR - https://www.scopus.com/pages/publications/77950323825

U2 - 10.1002/masy.201050405

DO - 10.1002/masy.201050405

M3 - Article

AN - SCOPUS:77950323825

SN - 1022-1360

VL - 290

SP - 37

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JO - Macromolecular symposia

JF - Macromolecular symposia

IS - 1

ER -

Preparation, characterization and application of modified surfaces with 3,5-Bis(3,5-dinitrobenzoylamino) benzoic acid

Abstract

Keywords

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