| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1646647 | Materials Letters | 2012 | 4 Pages |
The blue emission of a carbamic acid oligo(2-methyl-2-oxazoline) synthesized by a cationic ring-opening polymerization in supercritical carbon dioxide under controlled conditions is reported. The increase of the light-emission intensity of oligo(2-oxazoline)s was achieved by carbamic acid insertion at the oligomer starting end during the polymerization. Successful labeling of gram-positive S. aureus bacterial cells with carbamic acid ammonium-quaternized oligo(2-oxazoline)s turn these materials into promising blue fluorescent markers for imaging and bioanalytical assays.
► Synthesis of carbamic acid enriched oligo(2-oxazoline)s (OOXs) in scCO2 is reported. ► Fluorescence of enriched carbamic acid OOXs is reported for the first time. ► Light-emission properties can be tuned by scCO2 synthetic route. ► Purely intrinsic blue emission of OOXs results from carbamic acid endcapping. ► Ammonium-quaternized OOXs can be used as blue markers for S. aureus cells.
