Immobilization of the Horseradish Peroxide on the Multi-Wall Nanotube and its Application for H2O2 Sensing

In order to immobilize enzyme to multi-wall nanotube (MWNT), the MWNT was coated by the electrochemical polymerization of aniline. The horseradish peroxide (HRP) was immobilized on the surface of the polyaniline (PANI)-coated MWNT (PANI-MWNT film) by using gold nanoparticle (physical immobilization). The HRP was also immobilized on the surface of PANIMWNT film by using 2-aminothiophenol and Au nanoparticle (self-assembling immobilization). HRP was immobilized on the surface of PANI-MWNT electrode by using glutaric dialdehyde (covalent immobilization). The sensing efficiency of HRP-MWNT electrodes for H2O2 was evaluated by amperometric method. The sensing efficiency of HRP-MWNT electrodes for H2O2 was as following order; physical immobilization > covalent immobilization > self-assembling immobilization.

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Hydrogen Peroxide Sensor Based on Horseradish Peroxide (HRP) Immobilized PANI Electrode with Au Nanoparticles

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.342-343.865 ◽

2007 ◽

Vol 342-343 ◽

pp. 865-868 ◽

Cited By ~ 2

Author(s):

Kang Deuk Seo ◽

Seong Dae Oh ◽

Seong Ho Choi ◽

Sang Hyub Oh ◽

Jin Chun Woo ◽

...

Keyword(s):

Au Nanoparticles ◽

Electrochemical Polymerization ◽

Physical Adsorption ◽

Covalent Bonding ◽

Au Nanoparticle ◽

Adsorption Method ◽

Au Film ◽

Self Assembling ◽

Horseradish Peroxide ◽

Immobilization Method

In order to prepare the enzyme electrode for sensing of chemical molecules, the Au was coated on the surface of PP film by sputter coater. Polyaniline (PANI) was polymerized on the surface of the coated Au film by electrochemical polymerization of aniline in order to use working electrode. Subsequently, horseradish peroxide (HRP) was immobilized on PANI electrode as follows: Method I. The HRP was immobilized on the surface of PANI electrode by using Au nanoparticle as linker (physical adsorption). Method II. The HRP was immobilized on the surface of PANI electrode by using 2-aminothiophenol and Au nanoparticle as linker (Self-assembling immobilization). Method III. HRP was directly immobilized with PANI electrode by using glutaric dialdehyde as linker (covalent bonding). The sensing efficiency of the prepared HRP-PANI electrode was also examined. The sensing efficiency of the HRP-PANI electrode for H2O2 was as following order; Method I > Method III > Method II..

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Photothermal self-healing of gold nanoparticle–polystyrene hybrids

Nanoscale ◽

10.1039/d0nr05621a ◽

2020 ◽

Vol 12 (40) ◽

pp. 20726-20736

Author(s):

Yi Je Cho ◽

Lingchen Kong ◽

Rezawana Islam ◽

Meitong Nie ◽

Wei Zhou ◽

...

Keyword(s):

Gold Nanoparticle ◽

Au Nanoparticle ◽

Self Healing ◽

Particle Agglomeration ◽

Healing Efficiency

Photothermal self-healing efficiency increased with Au nanoparticle contents and particle agglomeration deteriorated the efficiency.

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Highly conductive electrocatalytic gold nanoparticle-assembled carbon fiber electrode for high-performance glucose-based biofuel cells

Journal of Materials Chemistry A ◽

10.1039/c8ta12342j ◽

2019 ◽

Vol 7 (22) ◽

pp. 13495-13505 ◽

Cited By ~ 10

Author(s):

Cheong Hoon Kwon ◽

Yongmin Ko ◽

Dongyeeb Shin ◽

Seung Woo Lee ◽

Jinhan Cho

Keyword(s):

Carbon Fiber ◽

Gold Nanoparticle ◽

High Power ◽

High Performance ◽

Biofuel Cells ◽

Au Nanoparticle ◽

Layer By Layer ◽

Carbon Fiber Electrodes ◽

Carbon Fiber Electrode ◽

Fiber Electrode

Au nanoparticle-coated highly conductive carbon fiber electrodes for high-power glucose-biofuel cells were developed based on a layer-by-layer assembling method.

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Combined plasmonic Au-nanoparticle and conducting metal oxide high-temperature optical sensing with LSTO

Nanoscale ◽

10.1039/d0nr03306e ◽

2020 ◽

Vol 12 (27) ◽

pp. 14524-14537 ◽

Cited By ~ 1

Author(s):

Jeffrey K. Wuenschell ◽

Youngseok Jee ◽

Derek K. Lau ◽

Yang Yu ◽

Paul R. Ohodnicki Jr.

Keyword(s):

High Temperature ◽

Metal Oxide ◽

Gold Nanoparticle ◽

Optical Sensing ◽

Au Nanoparticle

Coupled plasmonic and Drude response of gold-nanoparticle incorporated LSTO demonstrates visible and NIR fiber-based sensing of hydrogen at high-temperature (600–800 °C).

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