Detailed Information on Publication Record
2017
Rapid single-step upconversion-linked immunosorbent assay for diclofenac
HLAVÁČEK, Antonín, Miroslav PETEREK, Zdeněk FARKA, Matthias J. MICKERT, Leonhard PRECHTL et. al.Basic information
Original name
Rapid single-step upconversion-linked immunosorbent assay for diclofenac
Authors
HLAVÁČEK, Antonín (203 Czech Republic, belonging to the institution), Miroslav PETEREK (203 Czech Republic, belonging to the institution), Zdeněk FARKA (203 Czech Republic, belonging to the institution), Matthias J. MICKERT (276 Germany), Leonhard PRECHTL (276 Germany), Dietmar KNOPP (276 Germany) and Hans H. GORRIS (276 Germany, guarantor)
Edition
Microchimica Acta, Vienna, Springer, 2017, 0026-3672
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10406 Analytical chemistry
Country of publisher
Austria
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 5.705
RIV identification code
RIV/00216224:14740/17:00097559
Organization unit
Central European Institute of Technology
UT WoS
000410517400062
Keywords in English
Bioconjugation; Electrophoretic purification; Immunoassay; Luminescence; Pharmaceutical micropollutant; Photon-upconversion
Tags
International impact, Reviewed
Změněno: 15/3/2018 11:03, Mgr. Pavla Foltynová, Ph.D.
Abstract
V originále
The non-steroidal anti-inflammatory drug and analgesic diclofenac is a common micropollutant in water. A direct competitive upconversion-linked immunosorbent assay (ULISA) for diclofenac has been developed that is based on a nanoparticulate tracer consisting of a NaYF4:Yb,Er core (diameter of ~90 nm, excitation and emission wavelenghts 980 and 535 nm, respectively) enclosed by a carboxylated silica shell and finally coated with diclofenac-conjugated bovine gamma-globulin. The proteinaceous coating prevents non-specific adsorption of the tracer to the microtiter plate and provides a structurally flexible linker for surface-exposed diclofenac to warrant efficient competition with free (analyte) diclofenac in real water samples. The tracer was purified by gel electrophoresis and lyophilized. Both processes have no adverse effects on the immunoassay. All assay components can be stored in a dry state without a cooling chain, and can be reactivated on demand. Hence, this ULISA is well suited for environmental monitoring in low-resource settings. The ULISA has a similar limit of detection (20 pg mL-1; equivalent to 70 pM) as the conventional ELISA, but the time for analysis is reduced to 70 min because no enzymatic amplification steps are involved.
Links
LD15023, research and development project |
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LM2015043, research and development project |
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