Characterization and electrochemical response of DNA functionalized 2 nm gold nanoparticles confined in a nanochannel array
Polyvalent gold nanoparticle oligonucleotide conjugates are subject of intense research. Even though 2 nm diameter AuNPs have been previously modified with DNA, little is known about their structure and electrochemical behavior. In this work, we examine the influence of different surface modificatio...
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| Otros Autores: | , , , , , , |
| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier B.V.
2018
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| LEADER | 14896caa a22017177a 4500 | ||
|---|---|---|---|
| 001 | PAPER-16896 | ||
| 003 | AR-BaUEN | ||
| 005 | 20250908092241.0 | ||
| 008 | 190410s2018 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-85042052421 | |
| 024 | 7 | |2 cas |a aluminum oxide, 1302-74-5, 1318-23-6, 1344-28-1, 14762-49-3; DNA, 9007-49-2; sulfur, 13981-57-2, 7704-34-9; gold, 7440-57-5; Aluminum Oxide; DNA; Gold; Immobilized Nucleic Acids | |
| 030 | |a BIOEF | ||
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Peinetti, A.S. | |
| 245 | 1 | 0 | |a Characterization and electrochemical response of DNA functionalized 2 nm gold nanoparticles confined in a nanochannel array |
| 260 | |b Elsevier B.V. |c 2018 | ||
| 270 | 1 | 0 | |m Battaglini, F.; INQUIMAE (CONICET), Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, Argentina; email: battagli@qi.fcen.uba.ar |
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| 506 | |2 openaire |e Política editorial | ||
| 520 | 3 | |a Polyvalent gold nanoparticle oligonucleotide conjugates are subject of intense research. Even though 2 nm diameter AuNPs have been previously modified with DNA, little is known about their structure and electrochemical behavior. In this work, we examine the influence of different surface modification strategies on the interplay between the meso-organization and the molecular recognition properties of a 27-mer DNA strand. This DNA strand is functionalized with different sulfur-containing moieties and immobilized on 2 nm gold nanoparticles confined on a nanoporous alumina, working the whole system as an electrode array. Surface coverages were determined by EXAFS and the performance as recognition elements for impedance-based sensors is evaluated. Our results prove that low DNA coverages on the confined nanoparticles prompt to a more sensitive response, showing the relevance in avoiding the DNA strand overcrowding. The system was able to determine a concentration as low as 100 pM of the complementary strand, thus introducing the foundations for the construction of label-free genosensors at the nanometer scale. © 2017 Elsevier B.V. |l eng | |
| 536 | |a Detalles de la financiación: Organisation for the Prohibition of Chemical Weapons | ||
| 536 | |a Detalles de la financiación: Universidad de Buenos Aires, PIP-1035, 17189, PICT-2011-0367 | ||
| 536 | |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas | ||
| 536 | |a Detalles de la financiación: This work was financially supported by the following grants: UBACYT 20020130100262BA ( Universidad de Buenos Aires ), XAFS2 beamline ( LNLS , Brazil) proposal 17189 , PICT-2011-0367 , PIP-1035 ( CONICET ), OPCW and UNGS. MM., GAG., FGR, JMM and FB are CONICET members. | ||
| 593 | |a INQUIMAE (CONICET), Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, Buenos Aires, C1428EHA, Argentina | ||
| 593 | |a Universidad Nacional de Gral. Sarmiento, J. M. Gutierrez 1150, Los Polvorines, Prov. de Bs. As. B1613GSX, Argentina | ||
| 593 | |a Instituto de Investigaciones Físicoquímicas Teóricas y Aplicadas – INIFTA, CONICET y Dto. Química, Fac. Cs Ex, UNLP, La Plata, 1900, Argentina | ||
| 690 | 1 | 0 | |a ALUMINA |
| 690 | 1 | 0 | |a FIBER OPTIC SENSORS |
| 690 | 1 | 0 | |a GOLD |
| 690 | 1 | 0 | |a METAL NANOPARTICLES |
| 690 | 1 | 0 | |a NANOPARTICLES |
| 690 | 1 | 0 | |a OLIGONUCLEOTIDES |
| 690 | 1 | 0 | |a SURFACE TREATMENT |
| 690 | 1 | 0 | |a COMPLEMENTARY STRAND |
| 690 | 1 | 0 | |a CONFINED NANOPARTICLES |
| 690 | 1 | 0 | |a ELECTROCHEMICAL BEHAVIORS |
| 690 | 1 | 0 | |a ELECTROCHEMICAL RESPONSE |
| 690 | 1 | 0 | |a IMPEDANCE BASED SENSORS |
| 690 | 1 | 0 | |a MOLECULAR RECOGNITION PROPERTIES |
| 690 | 1 | 0 | |a NANO-CHANNEL ARRAYS |
| 690 | 1 | 0 | |a OLIGONUCLEOTIDE CONJUGATES |
| 690 | 1 | 0 | |a DNA |
| 690 | 1 | 0 | |a ALUMINUM OXIDE |
| 690 | 1 | 0 | |a DNA |
| 690 | 1 | 0 | |a ELEMENT |
| 690 | 1 | 0 | |a GOLD NANOPARTICLE |
| 690 | 1 | 0 | |a NANOCHANNEL |
| 690 | 1 | 0 | |a SULFUR |
| 690 | 1 | 0 | |a SULFUR DERIVATIVE |
| 690 | 1 | 0 | |a DNA |
| 690 | 1 | 0 | |a GOLD |
| 690 | 1 | 0 | |a IMMOBILIZED NUCLEIC ACID |
| 690 | 1 | 0 | |a METAL NANOPARTICLE |
| 690 | 1 | 0 | |a NANOMATERIAL |
| 690 | 1 | 0 | |a ARTICLE |
| 690 | 1 | 0 | |a CLINICAL EVALUATION |
| 690 | 1 | 0 | |a CONCENTRATION PROCESS |
| 690 | 1 | 0 | |a CONJUGATION |
| 690 | 1 | 0 | |a DNA PROBE |
| 690 | 1 | 0 | |a DNA SEQUENCE |
| 690 | 1 | 0 | |a DNA STRAND |
| 690 | 1 | 0 | |a ELECTROCHEMICAL ANALYSIS |
| 690 | 1 | 0 | |a ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY |
| 690 | 1 | 0 | |a IMMOBILIZATION |
| 690 | 1 | 0 | |a IMPEDANCE |
| 690 | 1 | 0 | |a MOLECULAR RECOGNITION |
| 690 | 1 | 0 | |a NANOCHANNEL ARRAY |
| 690 | 1 | 0 | |a PARTICLE SIZE |
| 690 | 1 | 0 | |a SENSITIVITY ANALYSIS |
| 690 | 1 | 0 | |a SURFACE AREA |
| 690 | 1 | 0 | |a CHEMISTRY |
| 690 | 1 | 0 | |a ELECTROCHEMICAL ANALYSIS |
| 690 | 1 | 0 | |a ELECTRODE |
| 690 | 1 | 0 | |a GENETIC PROCEDURES |
| 690 | 1 | 0 | |a NUCLEIC ACID HYBRIDIZATION |
| 690 | 1 | 0 | |a POROSITY |
| 690 | 1 | 0 | |a PROCEDURES |
| 690 | 1 | 0 | |a ALUMINUM OXIDE |
| 690 | 1 | 0 | |a BIOSENSING TECHNIQUES |
| 690 | 1 | 0 | |a DNA |
| 690 | 1 | 0 | |a ELECTROCHEMICAL TECHNIQUES |
| 690 | 1 | 0 | |a ELECTRODES |
| 690 | 1 | 0 | |a GOLD |
| 690 | 1 | 0 | |a IMMOBILIZED NUCLEIC ACIDS |
| 690 | 1 | 0 | |a METAL NANOPARTICLES |
| 690 | 1 | 0 | |a NANOSTRUCTURES |
| 690 | 1 | 0 | |a NUCLEIC ACID HYBRIDIZATION |
| 690 | 1 | 0 | |a POROSITY |
| 700 | 1 | |a Ceretti, H. | |
| 700 | 1 | |a Mizrahi, M. | |
| 700 | 1 | |a González, Graciela Alicia | |
| 700 | 1 | |a Ramírez, S.A. | |
| 700 | 1 | |a Requejo, Félix Gregorio | |
| 700 | 1 | |a Montserrat, J.M. | |
| 700 | 1 | |a Battaglini, Fernando | |
| 773 | 0 | |d Elsevier B.V., 2018 |g v. 121 |h pp. 169-175 |p Bioelectrochemistry |x 15675394 |w (AR-BaUEN)CENRE-3947 |t Bioelectrochemistry | |
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