NiCu Alloy Nanoparticle-Loaded Carbon Nanofibers for Phenolic Biosensor Applications.
Sensors (Basel)
; 15(11): 29419-33, 2015 Nov 20.
Article
in En
| MEDLINE
| ID: mdl-26610505
ABSTRACT
NiCu alloy nanoparticle-loaded carbon nanofibers (NiCuCNFs) were fabricated by a combination of electrospinning and carbonization methods. A series of characterizations, including SEM, TEM and XRD, were employed to study the NiCuCNFs. The as-prepared NiCuCNFs were then mixed with laccase (Lac) and Nafion to form a novel biosensor. NiCuCNFs successfully achieved the direct electron transfer of Lac. Cyclic voltammetry and linear sweep voltammetry were used to study the electrochemical properties of the biosensor. The finally prepared biosensor showed favorable electrocatalytic effects toward hydroquinone. The detection limit was 90 nM (S/N = 3), the sensitivity was 1.5 µA µM(-1), the detection linear range was 4 × 10(-7)-2.37 × 10(-6) M. In addition, this biosensor exhibited satisfactory repeatability, reproducibility, anti-interference properties and stability. Besides, the sensor achieved the detection of hydroquinone in lake water.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Phenols
/
Carbon
/
Biosensing Techniques
/
Copper
/
Nanofibers
/
Nickel
Language:
En
Journal:
Sensors (Basel)
Year:
2015
Type:
Article
Affiliation country:
China