A matrix of perovskite micro-seeds and polypyrrole nanotubes tethered laccase/graphite biosensor for sensitive quantification of 2,4-dichlorophenol in wastewater

2019 ◽  
Vol 11 (35) ◽  
pp. 4511-4519 ◽  
Author(s):  
Shivamurthy Ravindra Yashas ◽  
Shadakshari Sandeep ◽  
Ballagere Puttaraju Shivakumar ◽  
Ningappa Kumar Swamy
Keyword(s):  
Copper Oxide ◽  
Graphite Electrode ◽  
Polypyrrole Nanotubes ◽  
Strontium Copper Oxide ◽  
Polypyrrole Nanotube

The present study demonstrates the fabrication of a laccase (lac) biosensor to detect and quantify 2,4-dichlorophenol (2,4-DCP) using a lac immobilized polypyrrole nanotube (PPyNT) and strontium copper oxide (SrCuO2) micro-seed composite modified graphite electrode.

Electron microscopy, neutron diffraction, and physical properties of bismuth strontium copper oxide (Bi4Sr8Cu5O19+y)

1991 ◽  
Vol 3 (5) ◽  
pp. 844-852 ◽  
Author(s):  
M. T. Caldes ◽  
J. M. Navarro ◽  
F. Perez ◽  
M. Carrera ◽  
J. Fontcuberta ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Neutron Diffraction ◽  
Physical Properties ◽  
Copper Oxide ◽  
Strontium Copper Oxide

Size-controllable ultrathin carboxylated polypyrrole nanotube transducer for extremely sensitive 17β-estradiol FET-type biosensors

2016 ◽  
Vol 4 (29) ◽  
pp. 5025-5034 ◽  
Author(s):  
Wonjoo Na ◽  
Jin Wook Park ◽  
Ji Hyun An ◽  
Jyongsik Jang
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
High Sensitivity ◽  
Polypyrrole Nanotubes ◽  
17Β Estradiol ◽  
Effect Transistor ◽  
Polypyrrole Nanotube

Size-controllable aptamer conjugated ultrathin carboxylated polypyrrole nanotubes (A-UCPPyNTs) were successfully fabricated as transducers in 17β-estradiol field-effect transistor (FET)-type biosensors which has extremely high sensitivity (∼1 fM) and unique selectivity.

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