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Keywords:

  • Carbon nanotubes, single-walled;
  • Carotenoids;
  • Conjugated molecules;
  • Encapsulation
Thumbnail image of graphical abstract

Encapsulation of β-carotene inside single-walled carbon nanotubes (SWCNTs) greatly improves the stability of β-carotene. The Figure shows a schematic illustration of β-carotene inside a SWCNT. The surrounding tube wall protects β-carotene from reacting with radical species and suppresses its isomerization. This protection counters the degradation of π-conjugated molecules, which is a bottleneck impeding their application in photonic devices.