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2015•Journal of NanomaterialsOpen access

Synthesis of Monodispersed Gold Nanoparticles with Exceptional Colloidal Stability with Grafted Polyethylene Glycol‐g‐polyvinyl Alcohol

Alaaldin M. Alkilany, Alaa I. Bani Yaseen, Mohammed Hussein Kailani

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Abstract

Herein, we report the synthesis of spherical gold nanoparticles with tunable core size (23–79 nm) in the presence of polyethylene glycol‐g‐polyvinyl alcohol (PEG‐g‐PVA) grafted copolymer as a reducing, capping, and stabilizing agent in a one‐step protocol. The resulted PEG‐g‐PVA‐capped gold nanoparticles are monodispersed with an exceptional colloidal stability against salt addition, repeated centrifugation, and extensive dialysis. The effect of various synthesis parameters and the kinetic/mechanism of the nanoparticle formation are discussed.

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Herein, we report the synthesis of spherical gold nanoparticles with tunable core size (23–79 nm) in the presence of polyethylene glycol‐g‐polyvinyl alcohol (PEG‐g‐PVA) grafted copolymer as a reducing, capping, and stabilizing agent in a one‐step protocol. The resulted PEG‐g‐PVA‐capped gold nanoparticles are monodispersed with an exceptional colloidal stability against salt addition, repeated centrifugation, and extensive dialysis. The effect of various synthesis parameters and the kinetic/mechanism of the nanoparticle formation are discussed.

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Available abstract

Herein, we report the synthesis of spherical gold nanoparticles with tunable core size (23–79 nm) in the presence of polyethylene glycol‐g‐polyvinyl alcohol (PEG‐g‐PVA) grafted copolymer as a reducing, capping, and stabilizing agent in a one‐step protocol. The resulted PEG‐g‐PVA‐capped gold nanoparticles are monodispersed with an exceptional colloidal stability against salt addition, repeated centrifugation, and extensive dialysis. The effect of various synthesis parameters and the kinetic/mechanism of the nanoparticle formation are discussed.

Key concepts: Polyvinyl alcohol, Materials science, Polyethylene glycol, Colloidal gold, Colloid, Nanoparticle, Chemical engineering, Nanotechnology

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