Detailed Information on Publication Record
2018
Prussian Blue Nanoparticles as a Catalytic Label in a Sandwich Nanozyme-Linked Immunosorbent Assay
FARKA, Zdeněk, Veronika ČUNDERLOVÁ, Veronika HORÁČKOVÁ, Matěj PASTUCHA, Zuzana MIKUŠOVÁ et. al.Basic information
Original name
Prussian Blue Nanoparticles as a Catalytic Label in a Sandwich Nanozyme-Linked Immunosorbent Assay
Authors
FARKA, Zdeněk (203 Czech Republic, belonging to the institution), Veronika ČUNDERLOVÁ (203 Czech Republic, belonging to the institution), Veronika HORÁČKOVÁ (203 Czech Republic, belonging to the institution), Matěj PASTUCHA (203 Czech Republic, belonging to the institution), Zuzana MIKUŠOVÁ (703 Slovakia, belonging to the institution), Antonín HLAVÁČEK (203 Czech Republic, belonging to the institution) and Petr SKLÁDAL (203 Czech Republic, guarantor, belonging to the institution)
Edition
Analytical Chemistry, Washington, DC, American Chemical Society, 2018, 0003-2700
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10406 Analytical chemistry
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 6.350
RIV identification code
RIV/00216224:14740/18:00100815
Organization unit
Central European Institute of Technology
UT WoS
000424730600119
Keywords in English
Prussian blue nanoparticle; Enzyme biomimic; Bioconjugation; Sandwich immunoassay; Salmonella; Human serum albumin
Tags
International impact, Reviewed
Změněno: 19/3/2019 09:07, Mgr. Pavla Foltynová, Ph.D.
Abstract
V originále
Enzyme immunoassays are widely used for detection of analytes within various samples. However, enzymes as labels suffer several disadvantages such as high production cost and limited stability. Catalytic nanoparticles (nanozymes) can be used as an alternative label in immunoassays overcoming the inherent disadvantages of enzymes. Prussian blue nanoparticles (PBNPs) are nanozymes composed of the Fe4[Fe(CN)6]3-based coordination polymer. They reveal peroxidase-like activity and are capable of catalyzing the oxidation of colorless 3,3',5,5'-tetramethylbenzidine in the presence of H2O2 to form intensely blue product. Here, we introduce the method for conjugation of PBNPs with antibodies and their application in nanozyme-linked immunosorbent assay (NLISA). Sandwich NLISA for detection of human serum albumin in urine was developed with limit of detection (LOD) of 1.2 ng·mL–1 and working range up to 1 ug·mL-1. Furthermore, the microbial contamination of Salmonella Typhimurium in powdered milk was detected with LOD of 6 × 10^3 colony-forming units (cfu)·mL-1 and working range up to 10^6 cfu·mL-1. In both cases, a critical comparison with the same immunoassay but using native peroxidase as label was realized. The achieved results confirmed the suitability of PBNPs for universal and robust replacement of enzyme labels.
Links
GBP206/12/G014, research and development project |
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LM2015043, research and development project |
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LQ1601, research and development project |
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