One-Step Synthesis of PEG-Coated Gold Nanoparticles by Rapid Microwave Heating

Seol, Seung Kwon; Kim, Daeho; Jung, Sunshin; Chang, Won Suk; Kim, Ji Tae

doi:10.1155/2013/531760

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One-Step Synthesis of PEG-Coated Gold Nanoparticles by Rapid Microwave Heating

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Kim, Ji Tae
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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引用

Seol, S. K., Kim, D., Jung, S., Chang, W. S., & Kim, J. T. (2013). One-Step Synthesis of PEG-Coated Gold Nanoparticles by Rapid Microwave Heating. JOURNAL OF NANOMATERIALS,. doi:10.1155/2013/531760.

引用: https://hdl.handle.net/11858/00-001M-0000-002D-67E5-7

要旨

Polyethylene Glycol-(PEG-) coated gold nanoparticles (PEG-AuNPs) are synthesized by a one-step route with rapid microwave heating. Homogeneous nucleation of the primary gold particles is enhanced by increasing the applied microwave power during the initial stage of the synthesis, increasing the temperature ramping rate (R-r) and resulting in decreased size and improved uniformity of the synthesized PEG-AuNPs. Using rapid microwave heating, we successfully produce uniform colloidal PEG-AuNPs with an average diameter of 14.3 +/- 2.5 nm within a few minutes. By appropriate tuning of the growth parameters, microwave synthesis can produce largely colloidal PEG-AuNPs with high uniformity.