Decoration of graphene oxide sheets with luminescent rare-earth complexes

Coordination chemistry on carbon surfaces

“…Another reported strategy consists in the prior anchoring of a functionalized pyrene molecule, acting as a bridging unit, interacting with SWCNTs through the pyrene ring and strongly coordinating to the zinc center of the metallomacrocyle via a nitrogen atom of the functional group [163]. Apart from pyrene, that appears as a polyaromatic fragment of choice for the development of -interactions; other aromatic moieties like naphthalene [169,170,173], 1,10-phenanthroline [201][202][203] or even cyclopentadienyl (Cp) rings [204][205][206] have been successfully used for non-covalent immobilization of transition metal complexes onto graphitic surfaces and are presented in Table 12. Theoretical calculations using the surface integrated molecular orbital/molecular mechanics method were applied to the SWCNT/zirconocene system.…”

New Horizons for Diagnostics and Therapeutic Applications of Graphene and Graphene Oxide

“…It was used for in vitro imaging of live HeLa cells and no cytotoxicity observed at 360 μ g mL − 1 . GO functionalized with RE complexes were prepared using a noncovalent approach by Cao et al [ 153 ] The GO-RE complex hybrids and their dispersion can emit bright red luminescence, which makes them useful in biological labeling.…”

“…Graphene and GO are also explored being carriers of fl uorescent agents for cell imaging, such as fl uorophore, [ 151 ] QDs, [ 152 ] rare-earth (RE) complexes, [ 153 ] gold nanoclusters (GNCs). [ 154 ] Peng et al [ 151 ] reported the synthesis of fl uorophore-functionalized graphene sheets (Fluo-G) via a PEG bridge and explored its application as a fl uorescent nanoprobe for intracellular imaging.…”

Preparation and performance of a novel graphene oxide sheets modified rare-earth luminescence material

“…However, some setbacks of these rare-earth complexes, such as weaker luminescence intensity 12 and the greater tendency to aggregate, 6 limit development in their applications. [12][13][14][15][16] GSs with luminescence emission produced by a laser ash was observed by P. Kumar, K. S. Subrahmanyam, and others. 4,12 The tendency to aggregate is prevented by the hybridization with inorganic materials.…”