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Nanostructuring Platinum Nanoparticles on Multilayered Graphene Petal Nanosheets for Electrochemical Biosensing
ADVANCED FUNCTIONAL MATERIALS
  • Jonathan C. Claussen, Birck Nanotechnology Center, Purdue University
  • Anurag Kumar, Birck Nanotechnology Center, Purdue University
  • David B. Jaroch, Birck Nanotechnology Center, Purdue University
  • M. Haseeb Khawaja, Birck Nanotechnology Center, Purdue University
  • Allison Hibbard, Birck Nanotechnology Center, Purdue University
  • D. Marshall Porterfield, Birck Nanotechnology Center, Purdue University
  • Timothy S. Fisher, Birck Nanotechnology Center, Purdue University
Abstract
Hybridization of nanoscale metals and carbon nanotubes into composite nanomaterials has produced some of the best-performing sensors to date. The challenge remains to develop scalable nanofabrication methods that are amenable to the development of sensors with broad sensing ranges. A scalable nanostructured biosensor based on multilayered graphene petal nanosheets (MGPNs), Pt nanoparticles, and a biorecognition element (glucose oxidase) is presented. The combination of zero-dimensional nanoparticles on a two-dimensional support that is arrayed in the third dimension creates a sensor platform with exceptional characteristics. The versatility of the biosensor platform is demonstrated by altering biosensor performance (i.e., sensitivity, detection limit, and linear sensing range) through changing the size, density, and morphology of electrodeposited Pt nanoparticles on the MGPNs. This work enables a robust sensor design that demonstrates exceptional performance with enhanced glucose sensitivity (0.3 mu M detection limit, 0.0150 mM linear sensing range), a long stable shelf-life (>1 month), and a high selectivity over electroactive, interfering species commonly found in human serum samples.
Keywords
  • multi-layered graphene; platinum nanoparticles; nanoelectrode arrays; conductive polymers; glucose biosensor; MULTIWALLED CARBON NANOTUBES; SELF-ASSEMBLED MONOLAYERS; GLUCOSE-OXIDASE; NANOELECTRODE ARRAYS; GOLD NANOPARTICLE; ELECTRODES; GRAPHITE; SENSITIVITY; FABRICATION; CELLS
Date of this Version
8-21-2012
DOI
10.1002/adfm.201200551
Citation
Claussen, J. C., Kumar, A., Jaroch, D. B., Khawaja, M. H., Hibbard, A. B., Porterfield, D. M. and Fisher, T. S. (2012), Nanostructuring Platinum Nanoparticles on Multilayered Graphene Petal Nanosheets for Electrochemical Biosensing. Adv. Funct. Mater., 22: 3399–3405. doi:10.1002/adfm.201200551
Citation Information
Jonathan C. Claussen, Anurag Kumar, David B. Jaroch, M. Haseeb Khawaja, et al.. "Nanostructuring Platinum Nanoparticles on Multilayered Graphene Petal Nanosheets for Electrochemical Biosensing" ADVANCED FUNCTIONAL MATERIALS (2012)
Available at: http://works.bepress.com/jonathan_claussen/10/