Far‐Infrared‐Assisted Preparation of a Graphene–Nickel Nanoparticle Hybrid for the Enrichment of Proteins and Peptides

• DOI: 10.1002/chem.201202913
• Publication Date: 2012-10-30T20:35:05Z
• Authors: Weidong Qu; Huimin Bao; Luyan Zhang; Gang Chen
• Keywords: Spectrophotometry, Infrared; Metal Nanoparticles; Proteins; 02 engineering and technology; 01 natural sciences; Mass Spectrometry; 0104 chemical sciences; Hydrazines; X-Ray Diffraction; Nickel; Spectroscopy, Fourier Transform Infrared; Microscopy, Electron, Scanning; Graphite; Peptides; 0210 nano-technology

Abstract A new approach based on far infrared‐assisted in situ reduction was developed for the facile one‐step preparation of graphene–nickel nanoparticle hybrid by refluxing a mixture solution containing graphene oxide, nickel(II) sulfate, and hydrazine over an far‐infrared heater. The time as short 20 min. structure material investigated transmission electron microscopy, scanning X‐ray diffraction, energy dispersive spectroscopy, vibrating sample magnetometery, Fourier transform infrared spectroscopy. Magnetic investigations indicate that grapheme–nickel exhibits ferromagnetic behavior at room temperature. Meanwhile, successfully employed enrichment identification proteins peptides combination with matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry its excellent magnetic responsibility, high dispersibility, large surface area, hydrophobicity, indicating great promise wide range applications.