Hyperbranched polyglycidol assisted green synthetic protocols for the preparation of multifunctional metal nanoparticles

Haiqing Li; Jung Kyu Jo; Li Dong Zhang; Chang Sik Ha; Hongsuk Suh; Il Kim

doi:10.1021/la103483c

Hyperbranched polyglycidol assisted green synthetic protocols for the preparation of multifunctional metal nanoparticles

Haiqing Li
, Jung Kyu Jo
, Li Dong Zhang
, Chang Sik Ha
, Hongsuk Suh
, Il Kim^*

^*Corresponding author for this work

Pusan National University

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

43 Scopus citations

Abstract

Biocompatible hyperbranched polyglycidol (HBP) has been demonstrated to be an effective reducing and stabilizing agent for the synthesis of highly water-soluble monometallic (Au, Ag, Pt, Pd, and Ru) and bimetallic (Au/Pt, Au/Pd, and Au/Ru) nanoparticles (NPs), which provides a general and green protocol to fabricate metal NPs. The HBP-assisted reduction of metal ions follows an analogous polyol process. The reduction reaction rate increases sharply by increasing the temperature and the molecular weight of HBP. The size of NPs is controllable simply by changing the concentration of the metal precursor. High molecular weight HBP is favorable for the formation of NPs with uniform size and improved stability. By utilizing hydroxyl groups in the HBP-passivation layer of Au NPs, TiO₂/Au, GeO₂/Au, and SiO₂/Au nanohybrids are also fabricated via sol-gel processes, which sets a typical example for the creation of versatile metal NPs/inorganic oxide hybrids based on the as-prepared multifunctional NPs.

Original language	English
Pages (from-to)	18442-18453
Number of pages	12
Journal	Langmuir
Volume	26
Issue number	23
DOIs	https://doi.org/10.1021/la103483c
State	Published - 7 Dec 2010
Externally published	Yes

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title = "Hyperbranched polyglycidol assisted green synthetic protocols for the preparation of multifunctional metal nanoparticles",

abstract = "Biocompatible hyperbranched polyglycidol (HBP) has been demonstrated to be an effective reducing and stabilizing agent for the synthesis of highly water-soluble monometallic (Au, Ag, Pt, Pd, and Ru) and bimetallic (Au/Pt, Au/Pd, and Au/Ru) nanoparticles (NPs), which provides a general and green protocol to fabricate metal NPs. The HBP-assisted reduction of metal ions follows an analogous polyol process. The reduction reaction rate increases sharply by increasing the temperature and the molecular weight of HBP. The size of NPs is controllable simply by changing the concentration of the metal precursor. High molecular weight HBP is favorable for the formation of NPs with uniform size and improved stability. By utilizing hydroxyl groups in the HBP-passivation layer of Au NPs, TiO2/Au, GeO2/Au, and SiO2/Au nanohybrids are also fabricated via sol-gel processes, which sets a typical example for the creation of versatile metal NPs/inorganic oxide hybrids based on the as-prepared multifunctional NPs.",

author = "Haiqing Li and Jo, \{Jung Kyu\} and Zhang, \{Li Dong\} and Ha, \{Chang Sik\} and Hongsuk Suh and Il Kim",

year = "2010",

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doi = "10.1021/la103483c",

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T1 - Hyperbranched polyglycidol assisted green synthetic protocols for the preparation of multifunctional metal nanoparticles

AU - Li, Haiqing

AU - Jo, Jung Kyu

AU - Zhang, Li Dong

AU - Ha, Chang Sik

AU - Suh, Hongsuk

AU - Kim, Il

PY - 2010/12/7

Y1 - 2010/12/7

N2 - Biocompatible hyperbranched polyglycidol (HBP) has been demonstrated to be an effective reducing and stabilizing agent for the synthesis of highly water-soluble monometallic (Au, Ag, Pt, Pd, and Ru) and bimetallic (Au/Pt, Au/Pd, and Au/Ru) nanoparticles (NPs), which provides a general and green protocol to fabricate metal NPs. The HBP-assisted reduction of metal ions follows an analogous polyol process. The reduction reaction rate increases sharply by increasing the temperature and the molecular weight of HBP. The size of NPs is controllable simply by changing the concentration of the metal precursor. High molecular weight HBP is favorable for the formation of NPs with uniform size and improved stability. By utilizing hydroxyl groups in the HBP-passivation layer of Au NPs, TiO2/Au, GeO2/Au, and SiO2/Au nanohybrids are also fabricated via sol-gel processes, which sets a typical example for the creation of versatile metal NPs/inorganic oxide hybrids based on the as-prepared multifunctional NPs.

AB - Biocompatible hyperbranched polyglycidol (HBP) has been demonstrated to be an effective reducing and stabilizing agent for the synthesis of highly water-soluble monometallic (Au, Ag, Pt, Pd, and Ru) and bimetallic (Au/Pt, Au/Pd, and Au/Ru) nanoparticles (NPs), which provides a general and green protocol to fabricate metal NPs. The HBP-assisted reduction of metal ions follows an analogous polyol process. The reduction reaction rate increases sharply by increasing the temperature and the molecular weight of HBP. The size of NPs is controllable simply by changing the concentration of the metal precursor. High molecular weight HBP is favorable for the formation of NPs with uniform size and improved stability. By utilizing hydroxyl groups in the HBP-passivation layer of Au NPs, TiO2/Au, GeO2/Au, and SiO2/Au nanohybrids are also fabricated via sol-gel processes, which sets a typical example for the creation of versatile metal NPs/inorganic oxide hybrids based on the as-prepared multifunctional NPs.

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Hyperbranched polyglycidol assisted green synthetic protocols for the preparation of multifunctional metal nanoparticles

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