title: Synthesis of an elongated linear oligo(phenylene ethynylene)-based building block for application in DNA-programmed assembly.
abstract: The synthesis of an elongated linear oligonucleotide-functionalised module (ELOM) is described. The ELOM structure is based on an oligo(phenylene ethynylene) backbone substituted with two decyloxy groups. The two termini constitute two salicylaldehyde moieties acting as chemical cross-linkers. Before incorporation into an oligonucleotide sequence the organic part of the module, the elongated linear module (ELM), is functionalised with a dimethoxytrityl group and a phosphoramidite group. This enables incorporation into the middle of 30-mer oligonucleotide sequences by automated DNA synthesis. The obtained ELOMs were characterised by polyacrylamide gel electrophoresis and MALDI-TOF mass spectrometry. In analogy with previously reported LOM and TOM structures the coupling reactions of the ELOM modules were tested.
authors.affiliation: Center for Catalysis and Interdisciplinary Nanoscience Center (iNANO), Department of Chemistry, University of Aarhus, Langelandsgade, 140, Denmark.
authors.forename: Peter
authors.initials: P
authors.lastname: Blakskjaer
authors.forename: Kurt V
authors.initials: KV
authors.lastname: Gothelf
mesh_terms: D000447:Aldehydes / Q000737:chemistry; D001483:Base Sequence; D004247:DNA / Q000737:chemistry*; D008969:Molecular Sequence Data; D009841:Oligonucleotides / Q000138:chemical synthesis* / Q000737:chemistry / Q000235:genetics; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
chemical_list: D000447:Aldehydes; D009841:Oligonucleotides; D011108:Polymers; C473966:poly(phenylene ethynylene); C013243:salicylaldehyde; D004247:DNA