期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 23, 期 17, 页码 -出版社
MDPI
DOI: 10.3390/ijms23179542
关键词
luminescence; curcumin; BODIPY; NIR probes; bioimaging; bichromophoric dyad
资金
- EPSRC [EP/P015395/1]
In this paper, a novel bichromophoric system with efficient photoinduced intercomponent energy transfer process is described. This system can emit light in the far-red region, offering a large Stokes shift, and has potential applications in microscopy. The system has been encapsulated in MCM-41 nanoparticles, which showed biocompatibility and bio-inertness. The system can be located within the cytoplasm, while the dyad alone stains the nucleus.
In this paper we describe the synthesis of a novel bichromophoric system in which an efficient photoinduced intercomponent energy transfer process is active. The dyad consists of one subunit of curcumin and one of BODIPY and is able to emit in the far-red region, offering a large Stokes shift, capable of limiting light scattering processes for applications in microscopy. The system has been encapsulated in MCM-41 nanoparticles with dimensions between 50 and 80 nm. Both the molecular dyad and individual subunits were tested with different cell lines to study their effective applicability in bioimaging. MCM-41 nanoparticles showed no reduction in cell viability, indicating their biocompatibility and bio-inertness and making them capable of delivering organic molecules even in aqueous-based formulations, avoiding the toxicity of organic solvents. Encapsulation in the porous silica structure directed the location of the bichromophoric system within cytoplasm, while the dyad alone stains the nucleus of the hFOB cell line.
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