Journal
ADVANCED SCIENCE
Volume 9, Issue 18, Pages -Publisher
WILEY
DOI: 10.1002/advs.202201182
Keywords
cucurbituril; NIR; phosphorescence; supramolecular assembly; two-photon absorption
Categories
Funding
- National Nature Science Foundation of China (NNSFC) [22131008, SYXK-2021-0064]
Ask authors/readers for more resources
This study presents a design strategy for achieving near-infrared excitation and emission of organic phosphorescence materials through two-stage confinement supramolecular assembly. The prepared water-soluble assemblies maintain two-photon absorption and multicolor luminescence in cells or vivo, providing potential applications in bioimaging.
Organic phosphorescence materials have received wide attention in bioimaging for bio-low toxicity and large Stokes. Herein, a design strategy to achieve near-infrared (NIR) excitation and emission of organic room-temperature phosphorescence through two-stage confinement supramolecular assembly is presented. Via supramolecular macrocyclic confinement, the host-guest complexes exhibit phosphorescence with two-photon absorption (excitation wavelength up to 890 nm) and NIR emission (emission wavelength up to 800 nm) in aqueous solution, and further nano-confinement assembly significantly strengthens phosphorescence. Moreover, the nano-assemblies possess color-tunable luminescence spanning from the visible to NIR regions under different excitation wavelengths. Intriguingly, the prepared water-soluble assemblies maintain two-photon absorption and multicolor luminescence in cells or vivo.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available