TiO(2) printed aluminum foil: single-use film for a laser desorption/ionization target plate

Anal Chem. 2009 Feb 1;81(3):1177-83. doi: 10.1021/ac8024448.

Abstract

Single-use aluminum foil-based laser desorption/ionization (LDI) target plates have been developed for mass spectrometry (MS) analysis and provide detection results comparable to those of commercial stainless steel plates while offering a convenient way to avoid the time-consuming surface cleaning process. Additionally, arrays of TiO(2) nanoparticle spots are coated on the foil either by screen-printing or rotogravure-printing followed by sintering to form a mesoporous layer spot to act as an anchor for sample deposition. These TiO(2) spots offer further functions to the Al foil, such as matrix-free laser desorption/ionization or specific affinity for in situ enrichment of phosphopeptides. The single-use TiO(2)-Al foils are cheap to produce, easy to use, and well suited for high-throughput proteomics research. They can also be of interest for protein post-translational modifications study.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aluminum / chemistry*
  • Amino Acid Sequence
  • Angiotensins / analysis
  • Caseins / analysis
  • Lasers*
  • Metal Nanoparticles / chemistry*
  • Molecular Sequence Data
  • Myoglobin / analysis
  • Proteomics
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / methods*
  • Titanium / chemistry*

Substances

  • Angiotensins
  • Caseins
  • Myoglobin
  • titanium dioxide
  • Aluminum
  • Titanium