Thiophene dendron jacketed poly(amidoamine) dendrimers: Nanoparticle synthesis and adsorption on graphite

Suxiang Deng; Jason Locklin; Derek Patton; Akira Baba; Rigoberto C. Advincula

doi:10.1021/ja046144l

Thiophene dendron jacketed poly(amidoamine) dendrimers: Nanoparticle synthesis and adsorption on graphite

Suxiang Deng, Jason Locklin, Derek Patton, Akira Baba, Rigoberto C. Advincula^*

^*Corresponding author for this work

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

66 Citations (Scopus)

Abstract

The peripheral functionalization of amine-terminated fourth-generation poly(amidoamine) (PAMAM) with thiophene dendrons and the preparation of dendrimer-encapsulated metal nanoparticles are described. Interesting nanoparticle stabilization and energy-transfer properties were observed with these hybrid materials. The synthesis involved imine coupling of the dendron derivatives to the peripheral amine groups of PAMAM followed by reduction. The formation of these metal-organic nanoparticle hybrid materials was monitored by UV-vis spectroscopy. The complexation of metal ions and the stabilization effect of PAMAM on metal nanoparticles were investigated by FT-IR. Energy transfer was observed between the metal surface plasmon absorption and fluorescence of the terthiophene dendrons. Noncontact magnetic-AC mode AFM imaging revealed the formation of monodispersed and very stable nanoparticles adsorbed on an HOPG flat substrate.

Original language	English
Pages (from-to)	1744-1751
Number of pages	8
Journal	Journal of the American Chemical Society
Volume	127
Issue number	6
DOIs	https://doi.org/10.1021/ja046144l
Publication status	Published - 2005 Feb 16
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)

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title = "Thiophene dendron jacketed poly(amidoamine) dendrimers: Nanoparticle synthesis and adsorption on graphite",

abstract = "The peripheral functionalization of amine-terminated fourth-generation poly(amidoamine) (PAMAM) with thiophene dendrons and the preparation of dendrimer-encapsulated metal nanoparticles are described. Interesting nanoparticle stabilization and energy-transfer properties were observed with these hybrid materials. The synthesis involved imine coupling of the dendron derivatives to the peripheral amine groups of PAMAM followed by reduction. The formation of these metal-organic nanoparticle hybrid materials was monitored by UV-vis spectroscopy. The complexation of metal ions and the stabilization effect of PAMAM on metal nanoparticles were investigated by FT-IR. Energy transfer was observed between the metal surface plasmon absorption and fluorescence of the terthiophene dendrons. Noncontact magnetic-AC mode AFM imaging revealed the formation of monodispersed and very stable nanoparticles adsorbed on an HOPG flat substrate.",

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T1 - Thiophene dendron jacketed poly(amidoamine) dendrimers

T2 - Nanoparticle synthesis and adsorption on graphite

AU - Deng, Suxiang

AU - Locklin, Jason

AU - Patton, Derek

AU - Baba, Akira

AU - Advincula, Rigoberto C.

PY - 2005/2/16

Y1 - 2005/2/16

N2 - The peripheral functionalization of amine-terminated fourth-generation poly(amidoamine) (PAMAM) with thiophene dendrons and the preparation of dendrimer-encapsulated metal nanoparticles are described. Interesting nanoparticle stabilization and energy-transfer properties were observed with these hybrid materials. The synthesis involved imine coupling of the dendron derivatives to the peripheral amine groups of PAMAM followed by reduction. The formation of these metal-organic nanoparticle hybrid materials was monitored by UV-vis spectroscopy. The complexation of metal ions and the stabilization effect of PAMAM on metal nanoparticles were investigated by FT-IR. Energy transfer was observed between the metal surface plasmon absorption and fluorescence of the terthiophene dendrons. Noncontact magnetic-AC mode AFM imaging revealed the formation of monodispersed and very stable nanoparticles adsorbed on an HOPG flat substrate.

AB - The peripheral functionalization of amine-terminated fourth-generation poly(amidoamine) (PAMAM) with thiophene dendrons and the preparation of dendrimer-encapsulated metal nanoparticles are described. Interesting nanoparticle stabilization and energy-transfer properties were observed with these hybrid materials. The synthesis involved imine coupling of the dendron derivatives to the peripheral amine groups of PAMAM followed by reduction. The formation of these metal-organic nanoparticle hybrid materials was monitored by UV-vis spectroscopy. The complexation of metal ions and the stabilization effect of PAMAM on metal nanoparticles were investigated by FT-IR. Energy transfer was observed between the metal surface plasmon absorption and fluorescence of the terthiophene dendrons. Noncontact magnetic-AC mode AFM imaging revealed the formation of monodispersed and very stable nanoparticles adsorbed on an HOPG flat substrate.

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Thiophene dendron jacketed poly(amidoamine) dendrimers: Nanoparticle synthesis and adsorption on graphite

Abstract

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