2025
Multicolor Upconversion Forster Resonant Energy Transfer Using Optimized Yb@YbTm Core@Shell Nanoparticles
BEKARSKI, Grzegorz; Katarzyna PROROK; František ŠTĚTINA; Malgorzata MISIAK; Hans-Heiner GORRIS et al.Základní údaje
Originální název
Multicolor Upconversion Forster Resonant Energy Transfer Using Optimized Yb@YbTm Core@Shell Nanoparticles
Autoři
BEKARSKI, Grzegorz; Katarzyna PROROK; František ŠTĚTINA; Malgorzata MISIAK; Hans-Heiner GORRIS a Artur BEDNARKIEWICZ
Vydání
ACS NANO, WASHINGTON, AMER CHEMICAL SOC, 2025, 1936-0851
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30403 Technologies involving identifying the functioning of DNA, proteins and enzymes and how they influence the onset of disease and maintenance of well-being
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 16.000 v roce 2024
Označené pro přenos do RIV
Ano
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
upconversion; FRET; nanomaterials; multiplexing; sensing
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 20. 1. 2026 14:23, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Upconverting nanoparticles (UCNPs) have emerged as promising alternative donors for resonance energy transfer (FRET)-based biosensing. However, employing UCNPs in FRET assays remains challenging because they display relatively small absorption cross sections and are relatively large as compared to the Forster distance. Thousands of individual donor ions in each UCNP are located within various distances from surface-bound acceptors, complicating the data analysis. While previous studies have explored how the composition and architecture of UCNPs influence FRET, many reports remain qualitative, and multicolor UC-FRET systems involving a single donor and multiple acceptors are less commonly studied than single-donor-single-acceptor systems. To address these challenges, we synthesized UCNPs with an absorbing core (Yb3+-doped)/active shell (Yb3+, Tm3+-doped) nanoparticles systematically varying Tm3+ concentrations to optimize the FRET efficiency to surface-bound organic acceptors. A shell composition containing 4% Tm3+ yielded the highest FRET efficiency. Moreover, four distinct ATTO dyes showing spectral overlap with the blue emission of Tm3+ were used as acceptor dyes on the surface of UCNPs to evaluate FRET efficiencies in spectral and time domains. The differentiation of the four ATTO dyes on one type of upconverting donor nanoparticles using a simple ratiometric approach lays the foundation for the design of multiplexed bioassays. Our results offer a strategy for improving UC-FRET sensitivity through smart core-shell UCNPs designs, donor concentration tuning, and provide important insights into the rational design of more efficient, multicolor, and wash-free UC biosensing platforms.
Návaznosti
| GF23-06199K, projekt VaV |
|