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Preparation of hemoglobin (Hb)-imprinted poly(ionic liquid)s via Hb-catalyzed eATRP on gold nanodendrites
- Source :
- Analytical and Bioanalytical Chemistry. 412:983-991
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- Hemoglobin (Hb)-imprinted poly(ionic liquid)s (HIPILs) were prepared on the surface of Au electrode modified with gold nanodendrites (Au/ND/HIPILs). HIPILs were synthesized with 1-vinyl-3-propyl imidazole sulfonate ionic liquids as functional monomers via electrochemically mediated atom transfer radical polymerization (eATRP) catalyzed by Hb. The Au/ND/HIPILs electrode was examined by cyclic voltammetry (CV), scanning electron microscope (SEM), and X-ray photoelectron spectroscopy (XPS). The Au/ND/HIPILs electrode was also used as an electrochemical sensor to determine Hb by differential pulse voltammetry (DPV). Under the optimal conditions, the detection range of Hb was from 1.0 × 10−14 to 1.0 × 10−4 mg/mL with a limit of detection of 5.22 × 10−15 mg/mL (S/N = 3). Compared with other methods, the sensor based on poly(ionic liquid)s had the broader linear range and lower detection limit.
- Subjects :
- Ionic Liquids
Metal Nanoparticles
Biosensing Techniques
02 engineering and technology
01 natural sciences
Biochemistry
Catalysis
Polymerization
Analytical Chemistry
Molecular Imprinting
Hemoglobins
chemistry.chemical_compound
X-ray photoelectron spectroscopy
Limit of Detection
Animals
Imidazole
Detection limit
Atom-transfer radical-polymerization
010401 analytical chemistry
Imidazoles
021001 nanoscience & nanotechnology
0104 chemical sciences
Electrochemical gas sensor
chemistry
Ionic liquid
Cattle
Gold
Differential pulse voltammetry
Cyclic voltammetry
0210 nano-technology
Nuclear chemistry
Subjects
Details
- ISSN :
- 16182650 and 16182642
- Volume :
- 412
- Database :
- OpenAIRE
- Journal :
- Analytical and Bioanalytical Chemistry
- Accession number :
- edsair.doi.dedup.....feb61f25c05dedcb7266a1c50fbd0076