Next Article in Journal
A Novel Angular Acceleration Sensor Based on the Electromagnetic Induction Principle and Investigation of Its Calibration Tests
Next Article in Special Issue
A Gold Nanoparticles Enhanced Surface Plasmon Resonance Immunosensor for Highly Sensitive Detection of Ischemia-Modified Albumin
Previous Article in Journal
The Capability of Fiber Bragg Grating Sensors to Measure Amputees’ Trans-Tibial Stump/Socket Interface Pressures
Previous Article in Special Issue
Nano-Molar Deltamethrin Sensor Based on Electrical Impedance of PAH/PAZO Layer-by-Layer Sensing Films
Article Menu

Export Article

Open AccessArticle
Sensors 2013, 13(8), 10358-10369;

Synthesis of Bimetallic Platinum Nanoparticles for Biosensors

Centre for Materials Engineering, Department of Mechanical Engineering, University of Cape Town, Private Bag, Rondebosch 7701, South Africa
Department of Engineering, Macquarie University, Sydney, NSW 2109, Australia
Author to whom correspondence should be addressed.
Received: 2 July 2013 / Revised: 5 August 2013 / Accepted: 7 August 2013 / Published: 12 August 2013
Full-Text   |   PDF [485 KB, uploaded 21 June 2014]


The use of magnetic nanomaterials in biosensing applications is growing as a consequence of their remarkable properties; but controlling the composition and shape of metallic nanoalloys is problematic when more than one precursor is required for wet chemistry synthesis. We have developed a successful simultaneous reduction method for preparation of near-spherical platinum-based nanoalloys containing magnetic solutes. We avoided particular difficulties in preparing platinum nanoalloys containing Ni, Co and Fe by the identification of appropriate synthesis temperatures and chemistry. We used transmission electron microscopy (TEM) to show that our particles have a narrow size distribution, uniform size and morphology, and good crystallinity in the as-synthesized condition. Energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) confirms the coexistence of Pt with the magnetic solute in a face-centered cubic (FCC) solid solution. View Full-Text
Keywords: biosensors; bimetallic nanoparticles; magnetic nanoparticles; platinum nanoalloys; Pt-Ni; Pt-Co; Pt-Fe biosensors; bimetallic nanoparticles; magnetic nanoparticles; platinum nanoalloys; Pt-Ni; Pt-Co; Pt-Fe
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

MDPI and ACS Style

Leteba, G.M.; Lang, C.I. Synthesis of Bimetallic Platinum Nanoparticles for Biosensors. Sensors 2013, 13, 10358-10369.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top