A nanoscaled Au–horseradish peroxidase composite fabricated by an interface reaction and its characterization, immobilization and biosensing

2015 ◽  
Vol 7 (8) ◽  
pp. 3466-3471 ◽  
Author(s):  
Suli Liu ◽  
Tianxiang Wei ◽  
Qian Liu ◽  
Wenwen Tu ◽  
Yaqian Lan ◽  
...  
Keyword(s):  
Thin Film ◽  
Hydrogen Peroxide ◽  
Horseradish Peroxidase ◽  
Interface Reaction ◽  
Liquid Interface ◽  
Composite Thin Film ◽  
Novel Strategy

We develop a novel strategy for the biosensing application of hydrogen peroxide (H2O2) using a nanoscaled Au–horseradish peroxidase (HRP) composite thin film synthesized by a liquid–liquid interface reaction.

Synthesis of Polyaniline Using Electrostatically Layered Hematin Assemblies

2001 ◽  
Vol 708 ◽  
Author(s):  
Bon-Cheol Ku ◽  
Soo-Hyoung Lee ◽  
Wei Liu ◽  
Jayant Kumar ◽  
Ferdinando F. Bruno ◽  
...  
Keyword(s):  
Thin Film ◽  
Horseradish Peroxidase ◽  
Oxidative Polymerization ◽  
Polymerization Rate ◽  
Water Soluble ◽  
Composite Thin Film ◽  
Layer By Layer ◽  
Polystyrene Sulfonate ◽  
Conductive Polyaniline ◽  
Multilayer Assemblies

ABSTRACTThe enzyme horseradish peroxidase has been recently used for the polymerization of water-soluble conductive polyaniline. Hematin, an ironporphyrin molecule that catalyzes the oxidative polymerization of aniline and phenol, is a robust and inexpensive biomimetic alternative to horseradish peroxidase. Composite thin film assemblies were fabricated by electrostatic layer-by-layer (ELBL) alternate deposition of a polyelectrolyte, poly(dimethyl diallylammonium chloride), and hematin. These multilayer assemblies were then used for the polymerization of aniline in the presence of a polystyrene sulfonate as a template. It was found that the polymerization rate depends on both pH and the concentration of hematin deposited and the polyaniline synthesis was possible both onto the ELBL surfaces and in solution. It was also discovered that it is possible to reuse the ELBL assembled hematin substrates for multiple aniline polymerizations.

A graphene–MnO2 composite supercapacitor material accomplished tactically using liquid–liquid and solid–liquid interface reaction techniques

2020 ◽  
Vol 44 (17) ◽  
pp. 6853-6861 ◽  
Author(s):  
Sagar H. Patil ◽  
Aarti P. Gaikwad ◽  
Babasaheb J. Waghmode ◽  
Shivaram D. Sathaye ◽  
Kashinath R. Patil
Keyword(s):  
Thin Film ◽  
Interface Reaction ◽  
Liquid Interface ◽  
Superior Performance ◽  
Solid Liquid Interface ◽  
Solid Liquid

An exceptional, simplistic, approach is established for preparing a GNS–MnO2 thin film supercapacitor having a steady and superior performance.

Ternary CuO:SnO2:ZnO (1:1:1) composite thin film for room temperature gas sensor application

Optik ◽  
2021 ◽  
Vol 234 ◽  
pp. 166615
Author(s):  
S.R. Cynthia ◽  
R. Sivakumar ◽  
C. Sanjeeviraja
Keyword(s):  
Thin Film ◽  
Gas Sensor ◽  
Room Temperature ◽  
Composite Thin Film ◽  
Sensor Application

scholarly journals Ultrafast excited-state dynamics of SnSe2–SnSe composite thin film

AIP Advances ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 025040
Author(s):  
Manoj Kumar ◽  
Prince Sharma ◽  
Sanju Rani ◽  
Mahesh Kumar ◽  
V. N. Singh
Keyword(s):  
Thin Film ◽  
Excited State ◽  
Composite Thin Film ◽  
Excited State Dynamics

Nanophase-Separated, Elastic Epoxy Composite Thin Film as an Electrolyte for Stable Lithium Metal Batteries

Nano Letters ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 3611-3618
Author(s):  
Ziqi Zeng ◽  
Xin Chen ◽  
Mengjun Sun ◽  
Zhipeng Jiang ◽  
Wei Hu ◽  
...  
Keyword(s):  
Thin Film ◽  
Epoxy Composite ◽  
Composite Thin Film ◽  
Lithium Metal ◽  
Lithium Metal Batteries

scholarly journals Monitoring the heme iron state in horseradish peroxidase to detect ultratrace amounts of hydrogen peroxide in alcohols

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 9901-9910
Author(s):  
Raheleh Ravanfar ◽  
Alireza Abbaspourrad
Keyword(s):  
Hydrogen Peroxide ◽  
Horseradish Peroxidase ◽  
Oxidative Damage ◽  
Heme Iron ◽  
Aqueous Systems ◽  
Iron State ◽  
Low Concentrations

Despite the importance of hydrogen peroxide (H2O2) in initiating oxidative damage and its connection to various diseases, the detection of low concentrations of H2O2 (<10 μM) is still limited using current methods, particularly in non-aqueous systems.

scholarly journals Deep-Ultraviolet Transparent Conductive MWCNT/SiO2 Composite Thin Film Fabricated by UV Irradiation at Ambient Temperature onto Spin-Coated Molecular Precursor Film

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1348
Author(s):  
Hiroki Nagai ◽  
Naoki Ogawa ◽  
Mitsunobu Sato
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Heat Treatment ◽  
Uv Irradiation ◽  
Composite Thin Film ◽  
Precursor Film ◽  
Mixed Solution ◽  
Pencil Hardness ◽  
Strong Base ◽  
Deep Ultraviolet

Deep-ultraviolet (DUV) light-transparent conductive composite thin films, consisting of dispersed multiwalled carbon nanotubes (MWCNTs) and SiO2 matrix composites, were fabricated on a quartz glass substrate. Transparent and well-adhered amorphous thin films, with a thickness of 220 nm, were obtained by weak ultraviolet (UV) irradiation (4 mW cm−2 at 254 nm) for more than 6 h at 20−40 °C onto the precursor films, which were obtained by spin coating with a mixed solution of MWCNT in water and Si(IV) complex in ethanol. The electrical resistivity of MWCNT/SiO2 composite thin film is 0.7 Ω·cm, and transmittance in the wavelength region from DUV to visible light is higher than 80%. The MWCNT/SiO2 composite thin film showed scratch resistance at pencil hardness of 8H. Importantly, the resistivity of the MWCNT/SiO2 composite thin film was maintained at the original level even after heat treatment at 500 °C for 1 h. It was observed that the heat treatment of the composite thin film improved durability against both aqueous solutions involving a strong acid (HCl) and a strong base (NaOH).

scholarly journals The Reaction of Ferrous Horseradish Peroxidase with Hydrogen Peroxide

1970 ◽  
Vol 245 (9) ◽  
pp. 2409-2413
Author(s):  
Robert W. Noble ◽  
Quentin H. Gibson
Keyword(s):  
Hydrogen Peroxide ◽  
Horseradish Peroxidase
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