Gharib, Mustafa; Yates, A.J.; Sanders, Stephen; Gebauer, Johannes; Graf, Sebastian; Ziefuß, Anna; Nonappa; Kassier, Günther; Rehbock, Christoph; Barcikowski, Stephan; Weller, Horst; Alabastri, Alessandro; Nordlander, Peter; Parak, Wolfgang J.; Chakraborty, Indranath:
Golden Plasmophores with Tunable Photoluminescence and Outstanding Thermal and Photothermal Stability
In: Advanced Optical Materials (2024), in press, Artikel 2302833
2024Artikel/Aufsatz in ZeitschriftOA Hybrid
ChemieFakultät für Chemie » Technische ChemieForschungszentren » Center for Nanointegration Duisburg-Essen (CENIDE)Forschungszentren » Zentrum für Medizinische Biotechnologie (ZMB)
Damit verbunden: 1 Publikation(en)
Titel in Englisch:
Golden Plasmophores with Tunable Photoluminescence and Outstanding Thermal and Photothermal Stability
Autor*in:
Gharib, Mustafa
;
Yates, A.J.
;
Sanders, Stephen
;
Gebauer, Johannes
;
Graf, Sebastian
;
Ziefuß, AnnaUDE
GND
1261824393
LSF ID
59076
ORCID
0000-0002-9465-1917ORCID iD
Sonstiges
der Hochschule zugeordnete*r Autor*in
;
Nonappa
;
Kassier, Günther
;
Rehbock, ChristophUDE
LSF ID
53195
ORCID
0000-0002-4708-5246ORCID iD
Sonstiges
der Hochschule zugeordnete*r Autor*in
;
Barcikowski, StephanUDE
GND
129006084
LSF ID
52773
ORCID
0000-0002-9739-7272ORCID iD
Sonstiges
der Hochschule zugeordnete*r Autor*in
;
Weller, Horst
;
Alabastri, Alessandro
;
Nordlander, Peter
;
Parak, Wolfgang J.
;
Chakraborty, Indranath
Erscheinungsjahr:
2024
Open Access?:
OA Hybrid
Web of Science ID
Scopus ID
Notiz:
in press
Sprache des Textes:
Englisch
Schlagwort, Thema:
fluorescence ; gold nanoclusters ; gold nanorods ; plasmophores ; thermal stability
Ressourcentyp:
Text

Abstract in Englisch:

Among various hybrid nanomaterials, the combination of plasmonic nanoparticles and fluorophores in a single multifunctional nanoplatform, so-called plasmophores, has attracted significant attention in different fields such as dark field, fluorescence, and photoacoustic imaging, biosensing, photothermal, and photodynamic therapy. Herein, author report a facile and controlled synthesis route of hybrid nanoplatforms composed of fluorescent gold nanoclusters (GNCs) coupled to plasmonic gold nanorods (GNRs) using controlled silica (SiO₂) dielectric spacers of different thicknesses from now on referred to as GNR@SiO₂@GNC plasmophores. The results show different degrees of plasmon-enhanced fluorescence of the GNCs in their plasmophore hybrid system when placed at different distances from the plasmonic cores of the GNRs. On the other hand, these plasmophores show enhanced thermal stability compared to GNRs@CTAB (CTAB, cetyl trimethyl ammonium bromide). This results also demonstrated that upon annealing at elevated temperatures (800–1000 °C), the GNRs in the plasmophores are more thermally stable and robust than the GNRs@CTAB. More surprisingly, despite the commonly reported very low melting temperature of smaller-size nanocrystals, the GNCs in the plasmophores showed high thermal stability and do not exhibit significant structural changes at elevated temperatures (800–1000 °C).