Thallimetric oxidations—V Titrimetric and spectrophotometric determination of hydrogen peroxide

Rao, M. V. C.; Rao, A. Rama Mohan; Ramana, K. V. V.; Sagi, S.R.

doi:10.1016/0039-9140(90)80107-q

Cited by 24 publications

(7 citation statements)

References 9 publications

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“…Catalase is a metalloenzyme relevant in living organisms for the decomposition of H 2 O 2 into water and oxygen . The detection of H 2 O 2 can be difficult, as it can be time-consuming and expensive, , which is the reason why new approaches are under investigation to find more economic systems for this purpose. Additionally, the immobilization of the enzyme can be challenging as the activity of the enzyme should be preserved to obtain highly sensitive and selective sensors.…”

Section: Epd Of Enzymesmentioning

confidence: 99%

Electrophoretic Deposition of Biological Macromolecules, Drugs, And Cells

Seuss

Boccaccını

2013

Biomacromolecules

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The use of biological entities in biotechnology and the biomedical field is of great interest as the biocompatibility and the functionality of naturally occurring is usually higher compared to other biomaterials, for example, synthetic polymers. Processing of natural biomolecules, including proteins like collagen and also living cells and bacteria, to develop medical devices, bioactive coatings, functionalized implants, tissue scaffolds, or biosensors, is however challenging. Electrophoretic deposition, a technique that takes advantage of the presence of charged particles or molecules in suitable solvents, is a low-temperature process suitable for manipulating a wide range of biomolecules and biological entities preserving their bioactivity, which could be otherwise lost by processing at high temperatures. Another advantage of EPD is the possibility to use aqueous suspensions to process biological entities given that organic solvents also could lead to degradation of biomolecules. This paper gives an overview of the available literature on the application of EPD to process different biomolecules and biological entities, like proteins, bacteria cells, hyaluronic acid, and therapeutic drugs, aiming at using such biomaterials in numerous applications ranging from biosensors to orthopedic implants, tissue scaffolds, and drug delivery devices.

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Section: Epd Of Enzymesmentioning

confidence: 99%

Electrophoretic Deposition of Biological Macromolecules, Drugs, And Cells

Seuss

Boccaccını

2013

Biomacromolecules

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“…Several analytic methods as chemiluminescence [11–17], photometry [18], fluorimetry [19–21], titrimetry [22, 23], spectrophotometry [23–26], high-performance liquid chromatography (HPLC) [27], and especially electrochemistry [3, 28–37] are reported in the literature for detection of hydrogen peroxide.…”

Section: Introductionmentioning

confidence: 99%

Catalase-Based Modified Graphite Electrode for Hydrogen Peroxide Detection in Different Beverages

Fusco

Bollella

Mazzei

et al. 2016

Journal of Analytical Methods in Chemistry

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A catalase-based (NAF/MWCNTs) nanocomposite film modified glassy carbon electrode for hydrogen peroxide (H2O2) detection was developed. The developed biosensor was characterized in terms of its bioelectrochemical properties. Cyclic voltammetry (CV) technique was employed to study the redox features of the enzyme in the absence and in the presence of nanomaterials dispersed in Nafion® polymeric solution. The electron transfer coefficient, α, and the electron transfer rate constant, k s, were found to be 0.42 and 1.71 s−1, at pH 7.0, respectively. Subsequently, the same modification steps were applied to mesoporous graphite screen-printed electrodes. Also, these electrodes were characterized in terms of their main electrochemical and kinetic parameters. The biosensor performances improved considerably after modification with nanomaterials. Moreover, the association of Nafion with carbon nanotubes retained the biological activity of the redox protein. The enzyme electrode response was linear in the range 2.5–1150 μmol L−1, with LOD of 0.83 μmol L−1. From the experimental data, we can assess the possibility of using the modified biosensor as a useful tool for H2O2 determination in packaged beverages.

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“…In the past decade, the accurate determination of hydrogen peroxide has become a subject of considerable interest, not only because of its existence as a product of the reactions catalyzed by many highly selective oxidases, but also because it is an essential compound in the food, pharmaceutical, chemical and biochemical industries and many other fields 1,2. Thus, a variety of analytical methods such as titrimetry 3, spectrophotometry 3,4 spectrofluorometry 5,6, chemiluminescence 7,8 high performance liquid chromatography 9 and, especially, electrochemistry 10–15 have been developed for the assay of H 2 O 2 .…”

Section: Introductionmentioning

confidence: 99%

A Novel Hydrogen Peroxide Sensor Based on the Direct Electron Transfer of Catalase Immobilized on Nano‐Sized NiO/MWCNTs Composite Film

et al. 2011

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MWCNTs-nanoNiO composite was used as a glassy carbon electrode modifier for construction of a novel catalase nanobiosensor for hydrogen peroxide. The immobilized catalase exhibited excellent electrocatalytic activity towards the reduction of H 2 O 2 . The resulting amperometric biosensor exhibited a linear response over a concentration range of 200 mM to 2.53 mM with a low detection limit of 19.0 mM. Electrochemical impedance measurements revealed that the modified electrode can be used for the sensitive detection of H 2 O 2 . The charge transfer resistance found to decrease significantly after enzymatic reaction of nanobiosensor with H 2 O 2 . The resulting impedance was highly sensitive to H 2 O 2 over a linear range of 19-170 nM with a detection limit of 2.4 nM.

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Thallimetric oxidations—V Titrimetric and spectrophotometric determination of hydrogen peroxide

Cited by 24 publications

References 9 publications

Electrophoretic Deposition of Biological Macromolecules, Drugs, And Cells

Electrophoretic Deposition of Biological Macromolecules, Drugs, And Cells

Catalase-Based Modified Graphite Electrode for Hydrogen Peroxide Detection in Different Beverages

A Novel Hydrogen Peroxide Sensor Based on the Direct Electron Transfer of Catalase Immobilized on Nano‐Sized NiO/MWCNTs Composite Film

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