Redox nanoreactor dendrimer boxes: In situ hybrid gold nanoparticles via terthiophene and carbazole peripheral dendrimer oxidation

Chatthai Kaewtong; Guoqian Jiang; Ramakrishna Ponnapati; Buncha Pulpoka; Rigoberto Advincula

doi:10.1039/c0sm00796j

Redox nanoreactor dendrimer boxes: In situ hybrid gold nanoparticles via terthiophene and carbazole peripheral dendrimer oxidation

Chatthai Kaewtong, Guoqian Jiang, Ramakrishna Ponnapati, Buncha Pulpoka, Rigoberto Advincula

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

20 Citations (Scopus)

Abstract

π-Conjugated dendrimer-protected gold nanoparticles in stable colloidal form have been successfully prepared via simultaneous reduction of AuCl ₃ with oxidative polymerization of terthiophene (PT) and carbazole (PC) peripheral functionalized polyamidoamine (PAMAM) dendrimers. The hybrid dendrimer-metal materials were characterized by UV-vis, fluorescence, and FT-IR spectroscopy. XPS and AFM analyses were also employed. The differences in gold nanoparticle (AuNP) formation between the two PAMAM derivatives were discussed. In case of PT dendrimer, AuNPs can be stabilized in situ to form PAMAM-PPT-AuNP hybrid materials. For the PC dendrimer, the redox reaction afforded carbazole polymerization without necessarily forming AuNPs.

Original language	English
Pages (from-to)	5316-5319
Number of pages	4
Journal	Soft Matter
Volume	6
Issue number	21
DOIs	https://doi.org/10.1039/c0sm00796j
Publication status	Published - 2010 Nov 7
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics

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title = "Redox nanoreactor dendrimer boxes: In situ hybrid gold nanoparticles via terthiophene and carbazole peripheral dendrimer oxidation",

abstract = "π-Conjugated dendrimer-protected gold nanoparticles in stable colloidal form have been successfully prepared via simultaneous reduction of AuCl 3 with oxidative polymerization of terthiophene (PT) and carbazole (PC) peripheral functionalized polyamidoamine (PAMAM) dendrimers. The hybrid dendrimer-metal materials were characterized by UV-vis, fluorescence, and FT-IR spectroscopy. XPS and AFM analyses were also employed. The differences in gold nanoparticle (AuNP) formation between the two PAMAM derivatives were discussed. In case of PT dendrimer, AuNPs can be stabilized in situ to form PAMAM-PPT-AuNP hybrid materials. For the PC dendrimer, the redox reaction afforded carbazole polymerization without necessarily forming AuNPs.",

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T2 - In situ hybrid gold nanoparticles via terthiophene and carbazole peripheral dendrimer oxidation

AU - Kaewtong, Chatthai

AU - Jiang, Guoqian

AU - Ponnapati, Ramakrishna

AU - Pulpoka, Buncha

AU - Advincula, Rigoberto

PY - 2010/11/7

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AB - π-Conjugated dendrimer-protected gold nanoparticles in stable colloidal form have been successfully prepared via simultaneous reduction of AuCl 3 with oxidative polymerization of terthiophene (PT) and carbazole (PC) peripheral functionalized polyamidoamine (PAMAM) dendrimers. The hybrid dendrimer-metal materials were characterized by UV-vis, fluorescence, and FT-IR spectroscopy. XPS and AFM analyses were also employed. The differences in gold nanoparticle (AuNP) formation between the two PAMAM derivatives were discussed. In case of PT dendrimer, AuNPs can be stabilized in situ to form PAMAM-PPT-AuNP hybrid materials. For the PC dendrimer, the redox reaction afforded carbazole polymerization without necessarily forming AuNPs.

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