Combinatorial Synthesis of Peptoid Arrays via Laser-Based Stacking of Multiple Polymer Nanolayers

Macromol Rapid Commun. 2019 Mar;40(6):e1800533. doi: 10.1002/marc.201800533. Epub 2018 Dec 21.

Abstract

Here, the combinatorial synthesis of molecule arrays via a laser-assisted process is reported. Laser-transferred polymer nanolayers with embedded monomers, activators, or bases can be reliably stacked on top of each other, spot-by-spot, to synthesize molecule arrays. These various chemicals in the nanometer-thin layers are mixed by heat or solvent vapor, inducing coupling reactions. As an example, peptoid arrays with a density of 10 000 spots per cm2 with the sub-monomer or monomer method are generated. Moreover, successful reactions spot-by-spot are verified by laser-transferring MALDI-matrix (Matrix-assisted laser desorption/ionization) followed by MALDI mass spectrometry imaging.

Keywords: MALDI-MS imaging; high-throughput screening; laser-induced forward transfer; molecule arrays; submonomer method.

MeSH terms

  • Lasers*
  • Molecular Structure
  • Nanostructures / chemistry*
  • Peptoids / chemical synthesis*
  • Peptoids / chemistry
  • Polymers / chemical synthesis*
  • Polymers / chemistry
  • Protein Array Analysis*

Substances

  • Peptoids
  • Polymers