Merging Porphyrins with Gold Nanorods: Self Assembly Construct to High Fluorescent Polyelectrolyte Microcapsules

Dual probe porphyrin-gold nanorod polyelectrolyte microcapsules were developed to explore the enhancing effects of a plasmonic interface of self-assembled gold nanoparticles in the fluorescence emission from porphyrins loaded into the capsules' core. An analysis of fluorescence lifetime imaging...

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2022-03, Vol.12 (5), p.872
Main Authors: Serra, Vanda Vaz, Serra, Sofia G, Vallejo, Mariana C S, Paulo, Pedro M R, Moura, Nuno M M, Botequim, David, Neves, Maria Graça P M S, Costa, Sílvia M B
Format: Article
Language:English
Subjects:
Aqueous solutions
Emission analysis
Emissions
Fluorescence
fluorescence imaging
Gold
Hybrids
Light
metal nanoparticles
Microcapsules
Microscopy
Nanoparticles
Nanorods
plasmonic antennas
polyelectrolyte microcapsules
Polyelectrolytes
Porphyrins
Self-assembly
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Summary:Dual probe porphyrin-gold nanorod polyelectrolyte microcapsules were developed to explore the enhancing effects of a plasmonic interface of self-assembled gold nanoparticles in the fluorescence emission from porphyrins loaded into the capsules' core. An analysis of fluorescence lifetime imaging microscopy (FLIM) data reports a notable 10 -10 -fold increase in the maximum detected photon rates from diffraction-limited spots and an overall six-fold increase in fluorescence as averaged over the whole microcapsule area. Large emission enhancements were correlated with decreases in fluorescence lifetimes. The microcapsule's design proved effective in achieving high fluorescent hybrids and may shed light on new possibilities for advanced materials imaging applications.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano12050872