Characterization of gold/PMMA hybrid nanomaterials synthesized by hard X-ray synchrotron radiation--颗粒学报PARTICUOLOGY

Liou, H., Liou, W., Lin, H., Hwu, Y., & Chen, W. (2010). Characterization of gold/PMMA hybrid nanomaterials synthesized by hard X-ray synchrotron radiation. Particuology, 8(3), 234-239. https://doi.org/10.1016/j.partic.2010.01.002

Characterization of gold/PMMA hybrid nanomaterials synthesized by hard X-ray synchrotron radiation

Hueywen Liou ^a, Weijen Liou ^a, Hongming Lin ^a *, Yeukuang Hwu ^b, Wenchang Chen ^c

a Department of Materials Engineering, Tatung University, No. 7-1, DeHui St., Taipei 104, Taiwan, China
b Institute of Physics, Academia Sinica, Nankang, Taipei 115, Taiwan, China
c Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliou 640, Taiwan, China

10.1016/j.partic.2010.01.002

Volume 8, Issue 3, June 2010, Pages 234-239

Received 4 January 2009, Revised 17 June 2009, Accepted 12 January 2010, Available online 10 February 2010.

E-mail: hmlin@ttu.edu.tw

Highlights

Abstract

In this study, new types of hybrid gold poly(methyl methacrylate) (PMMA) nanomaterials are synthesized. Both PMMA spheres coated with gold nanoparticles and gold nanoparticles coated with PMMA can be synthesized using different ratios of HAuCl₄ and MMA precursors, by exposing the mixtures to hard X-ray synchrotron radiation without the use of a reducing agent. According to the photochemical mechanism, gold nanoparticles will precipitate from a solution of HAuCl₄ on exposure to synchrotron radiation, followed by the synthesis of PMMA by the polymerization of MMA monomers. These reactions can result in the formation of two different types of new hybrid nanomaterials. When a 1:1 volume ratio of HAuCl₄ to MMA is used, we obtain PMMA spheres coated with gold nanoparticles. When a 10:1 ratio of HAuCl₄ and MMA is used, we obtain gold nanoparticles coated with PMMA. The hybrid gold/PMMA nanostructures are characterized by transmission electron microscopy, elemental analysis, dynamic-light scattering analysis, gel permeation chromatography and Raman spectroscopy. The hybrid nanomaterials have potential application in the fields of biosensors and drug delivery.

Graphical abstract

Keywords

Nanoparticle; Gold; Poly(methyl methacrylate); Hard X-ray

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