Issue 48, 2017

Sputtering deposition of gold nanoparticles onto graphene oxide functionalized with ionic liquids: biosensor materials for cholesterol detection

Abstract

Ionic liquid (IL)-functionalized graphene oxide (GO) containing gold nanoparticles (Au NPs) (5.4–5.9 nm) deposited by sputtering combined with cholesterol oxidase appears to be a suitable and efficient biosensor for total cholesterol detection. These biosensors showed good linear range (25–340 μmol L−1) for total cholesterol determination by colorimetric tests. In addition, control experiments in the presence of interferents demonstrated that the hybrid materials provided a selective detection of total cholesterol. The biosensing activities obtained for the hybrid materials indicate that these compounds are potential biosensors for clinical applications.

Graphical abstract: Sputtering deposition of gold nanoparticles onto graphene oxide functionalized with ionic liquids: biosensor materials for cholesterol detection

Supplementary files

Article information

Article type
Communication
Submitted
26 Sept. 2017
Accepted
20 Nov. 2017
First published
20 Nov. 2017

J. Mater. Chem. B, 2017,5, 9482-9486

Sputtering deposition of gold nanoparticles onto graphene oxide functionalized with ionic liquids: biosensor materials for cholesterol detection

N. M. Galdino, G. S. Brehm, R. Bussamara, W. D. G. Gonçalves, G. Abarca and J. D. Scholten, J. Mater. Chem. B, 2017, 5, 9482 DOI: 10.1039/C7TB02582C

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