Back to Search
Start Over
One step electro-oxidative preparation of graphene quantum dots from wood charcoal as a peroxidase mimetic
- Source :
- Talanta. 173
- Publication Year :
- 2017
-
Abstract
- In present study, we highlight one-step electrochemical synthesis of nearly uniform size (~ 5nm) of graphene quantum dots (E-GQDs) from wood charcoal and their further application as a peroxidase enzyme mimetic. The structural and optical properties of as-synthesized E-GQDs were probed by TEM, AFM, and spectroscopic techniques. Peroxidase enzyme mimetic potential of E-GQDs were examined for colorimetric detection of H2O2 and glucose. E-GQDs allowed a rapid and sensitive detection of glucose with a detection limit of 0.006mM for dynamic response range of 0.01-0.6mM. The calculated higher value of Vmax (7.2 × 10-7Ms-1) along with lower Km (0.012mM) corroborate enhanced the peroxidase-like activity of E-GQDs. Study introduces a cheap and widely available raw material for the electrochemical synthesis of graphene quantum dots with commendable enzyme mimetic activity which may have a huge impact in developing calorimetric bioanalysis systems.
- Subjects :
- Bioanalysis
Nanotechnology
One-Step
02 engineering and technology
010402 general chemistry
Electrochemistry
01 natural sciences
Analytical Chemistry
law.invention
law
Biomimetic Materials
Quantum Dots
Charcoal
Peroxidase
Detection limit
biology
Chemistry
Graphene
Hydrogen Peroxide
021001 nanoscience & nanotechnology
Wood
0104 chemical sciences
Glucose
Chemical engineering
Quantum dot
visual_art
biology.protein
visual_art.visual_art_medium
Colorimetry
Graphite
0210 nano-technology
Oxidation-Reduction
Subjects
Details
- ISSN :
- 18733573
- Volume :
- 173
- Database :
- OpenAIRE
- Journal :
- Talanta
- Accession number :
- edsair.doi.dedup.....5d44540219ce0229758982c1095708d5