2025
Adapting the Laser-Induced Fluorescence Detection Setup of the Standard Capillary Electrophoresis Equipment to Achieve High-Sensitivity Detection of 2-Aminoacridone Labeled Oligosaccharides
DUŠA, Filip; Marcelina RUSIN; Denisa SMOLKOVÁ; Jozef SESTAK; Justyna DOBROWOLSKA-IWANEK et al.Základní údaje
Originální název
Adapting the Laser-Induced Fluorescence Detection Setup of the Standard Capillary Electrophoresis Equipment to Achieve High-Sensitivity Detection of 2-Aminoacridone Labeled Oligosaccharides
Autoři
DUŠA, Filip; Marcelina RUSIN; Denisa SMOLKOVÁ; Jozef SESTAK; Justyna DOBROWOLSKA-IWANEK; Michal WOZNIAKIEWICZ a Jana LAVICKÁ
Vydání
Journal of Separation Science, Weinheim, Wiley, 2025, 1615-9306
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10406 Analytical chemistry
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.800 v roce 2024
Označené pro přenos do RIV
Ano
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
2-aminoacridone; capillary electrophoresis; human milk oligosaccharides; laser-induced fluorescence
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 1. 12. 2025 10:06, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
The high-sensitivity capabilities of laser-induced fluorescence (LIF) detection continuously promote the development of various labels with different fluorescence properties. However, this strategy also requires the adaptation of existing detection systems to suit the excitation and emission characteristics of novel fluorescent tags. In this study, we adapted the LIF detector of the commercial capillary electrophoresis instrument to the specific fluorescence spectra of 2-aminoacridone labeled human milk oligosaccharides. An external solid-state laser with a wavelength of 405 nm was connected to the commercial capillary electrophoresis instrument via a simple 3D-printed laser-to-light-guide adapter, and different optical filter setups were compared based on the signal-to-noise ratio. The optimized setup provided detection limits as low as 0.27 to 0.34 nM, corresponding to injection of 3.4 to 4.6 attomoles of 2-aminoacridone labeled oligosaccharides. These findings show that the optimized laser and filter configuration can enhance the sensitivity of electrophoretic separation by several orders of magnitude. In addition, the presented setup can be utilized as a guide for coupling different lasers to the commercial instrument.