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  • Near-infrared luminescent cubic silicon carbide nanocrystals for in vivo biomarker applications: an ab initio study.

Near-infrared luminescent cubic silicon carbide nanocrystals for in vivo biomarker applications: an ab initio study.

Nanoscale (2012-11-09)
Bálint Somogyi, Viktor Zólyomi, Adam Gali
ABSTRACT

Molecule-sized fluorescent emitters are much sought-after to probe biomolecules in living cells. We demonstrate here by time-dependent density functional calculations that the experimentally achievable 1-2 nm sized silicon carbide nanocrystals can emit light in the near-infrared region after introducing appropriate color centers in them. These near-infrared luminescent silicon carbide nanocrystals may act as ideal fluorophores for in vivo bioimaging.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Silicon carbide, nanopowder, <100 nm particle size
Sigma-Aldrich
Silicon carbide, -200 mesh particle size
Sigma-Aldrich
Silicon carbide, −400 mesh particle size, ≥97.5%