For example, some prokaryotes use hydrogen sulfide as a nutrient, yet this gas is poisonous to animals. (wikipedia.org)
20222
Guided Synthesis of a Mo/Zn Dual Single-Atom Nanozyme with Synergistic Effect and Peroxidase-like Activity , Angewandte Chemie International Edition , 2022, 61(25): e202116170. (zhou.team)
Signal-on Electrochemical Detection for Drug-resistant Hepatitis B Virus Mutants through Three-way Junction Transduction and Exo-nuclease III‒Assisted Catalyzed Hairpin Assembly , Analytical Chemistry , 2022, 94(2): 600-605. (zhou.team)
Assay1
To this end, a horseradish peroxidase-catalyzed spectrophotometric method was used as an assay for H(2)O(2). (unl.pt)
Relies1
One of the key advantages of electrochemical biosensors relies on their relative simplicity. (docksci.com)
Reactions1
One of the half-cell reactions within the electrochemical cell is carefully controlled in order to study the changes in charge transfer at the interface of the other half-cell reaction, usually called the working electrode. (docksci.com)
Detection1
The use of nanomaterials such as carbon nanotubes and graphene on electrochemical biosensors is lowering the limit of detection (LOD) to unparalleled levels, opening the door to new and exciting biosensing applications. (docksci.com)
Recognition1
Amperometric biosensors Amperometric biosensors are a class of electrochemical biosensors that transduce the biological recognition events caused by electroactive species at the sensing surface into a current signal for the quantification of an analyte within a sample matrix. (docksci.com)
Solution1
Germination of selected vegetable seeds including corn (Zea mays L.), squash (Cucurbita pepo L.), and tomato (Solanum lycopersicum L.) was studied in water with different concentrations of hydrogen peroxide (H2O2) solution ranging from 0, 0. (researchgate.net)
Effect1
A range of electrochemical techniques can be used for biosensing applications, namely potentiometric (measuring variations in open circuit potential, of which biologically sensitive field-effect transistors is a special type and discussed in Chapter 9), amperometric (measuring currents due to the reduction or oxidation of electroactive species) and impedimetric sensors (measuring the impedance of the system upon immobilisation of biolayers at the electrode surface). (docksci.com)
Activity1
The surface-enhanced Raman scattering activity and peroxidase-like catalytic performance are enhanced simultaneously for the first time by manipulating the optimal molar ratio of an MPF to VC and the reaction sequence with target model molecules. (bvsalud.org)
Range2
We evaluated two hydrogen peroxide products, with varying levels of stabiliser, over a range of peroxide concentrations (10-5000 ppm), in-vitro (petri dishes) seed germination and seedling growth for ten crop species. (researchgate.net)
Electrochemical techniques have great promise for low-cost miniaturised easy-to-use portable devices for a wide range of applications - in particular, medical diagnosis and environmental monitoring. (docksci.com)
Levels1
Hydrogen peroxide (H2 O2 ) has key signaling roles at physiological levels, while causing molecular damage at elevated concentrations. (biomed.news)
Technique1
Electrochemical impedance spectroscopy is a technique being increasingly used in devices due to its ability to detect variations in resistance and capacitance upon binding events. (docksci.com)
In this study, metabolomic analyses revealed that treatment of cancer cells with glutathione peroxidase 4 (GPX4) inhibitors results in intracellular glycerol-3-phosphate (G3P) depletion. (biomed.news)
Catalase1
We also investigated how the cellular effects of BT were modified by hydrogen peroxide (H 2 O 2 ) scavenger catalase, hypochlorous acid (HOCl) scavenger methionine, and 4-aminobenzoic acid hydrazide (ABAH), a myeloperoxidase (MPO)-specific inhibitor. (nih.gov)
Horseradish6
Carbon monoxide, formate, and acetate interact with horseradish peroxidase (HRP) by binding to subsites within the active site. (nih.gov)
Deuterium labeling of the meso position of hemin reconstituted into sperm whale myoglobin and horseradish peroxidase reveals that both the hydrogen peroxide treated myoblobin (ferryl myoglobin) and horseradish peroxidase compound I1 exhibit only meso H resonances with significant hyperfine shift and that these shifts are essentially the same as those found in the low-spin Fe"=O model complexes. (datapdf.com)
Hence, the 'H NMR data can be taken as evidence for the presence of the ferryl group at the active site of both ferryl myoglobin and compound I1 of horseradish peroxidase. (datapdf.com)
The ferryl unit (FeIV=O) has been proposed to describe the heme iron in the reactive intermediates of horseradish peroxidase, H R P , chloroperoxidase, CP, as well as the reaction product of hydrogen peroxide with myoglobin, ferryl Mb. (datapdf.com)
I3 Evidence for the presence of a low-spin (S = 1) iron(1V) includes magnetic s~sceptibility'~ and Mossbauer data of horseradish peroxidase compound I1 (HRP-II). (datapdf.com)
Superoxide2
If hydrogen peroxide encounters a reduced transition metal or is mixed with superoxide, it can be further reduced to a hydroxyl radical, the most potent oxidizing agent among ROS. (fmaware.org)
The rates of formation of superoxide and hydrogen peroxide at different electron-donating sites in isolated mitochondria are critically dependent on the substrates that are added, through their effects on the reduction level of each site and the components of the protonmotive force. (biomed.news)
Electron transfer1
Cytochrome a, cytochrome b, and cytochrome c have such electron transfer functions. (wikipedia.org)
Mitochondria2
Recently, several groups have described different degrees of mitochondrial dysfunction in muscle biopsies from FM patients, such as subsarcolemmal mitochondrial accumulation, abnormal mitochondria, a low number of mitochondria, electron-dense inclusions, lack of inner membrane in mitochondria, ragged red fibers, and fibers showing defects of cytochrome-c-oxidase, the complex IV of oxidative phosphorilation. (fmaware.org)
13] who first isolated from mitochondria four enzyme multi-subunit complexes that concur on the oxidation of NADH and succinate, namely NADH-Coenzyme Q reductase (Complex I, CI), succinate-Coenzyme Q reductase (Complex II, CII), ubiquinol-cytochrome c reductase (Complex III, CIII or cytochrome bc 1 Complex) and cytochrome c oxidase (Complex IV, CIV) [14] . (researchgate.net)
Glucose2
The hydrogen is then attached to carbon to create glucose and starch, while the oxygen is released into the atmosphere. (musculoskeletalkey.com)
The glucose oxidase is a dimeric protein that catalyzes the oxidation of beta-D-glucose into hydrogen peroxide and D-glucono-1,5-lactone, which is hydrolyzed to gluconic acid. (aatbio.com)
Carbon1
The conversion of the chemical energy of carbon compounds into a physical, vectorial form of energy (the electrochemical gradient) maximizes the yield of the ATP biosynthetic process and is perhaps one of the foundations of life as we know it. (biomed.news)
Complex1
The respiratory chain complexes donate electrons in stepwise redox reactions to molecular oxygen and, with the exception of complex II, use the liberated energy to pump protons across the proton-impermeable IMM, generating a proton electrochemical gradient. (biomed.news)
Atom1
Supplementary Material Available: Table I1 (anisotropic temperature factors), Table IV (fixed hydrogen atom positions), and a listing of the structure factor amplitudes (XIO) (19 pages). (datapdf.com)
Protein2
It is now known that cytochrome a and cytochrome a3 make up one protein and was deemed the name cytochrome aa3. (wikipedia.org)
Animals, including humans, eat plants to acquire carbohydrates (as well as other animals to obtain protein and fat), ultimately removing the hydrogen and combining it with oxygen to regenerate water. (musculoskeletalkey.com)
Oxygen1
Oxygen interacts with the distal His by way of a hydrogen bond, not a covalent one. (wikipedia.org)
In the presence of both the enzyme and hydrogen peroxide, the peak-like signal of cytochrome c-551 is converted into a sigmoidal wave form characteristic of an E(r)C'(i) catalytic mechanism. (bvsalud.org)
Ahmed AH, Ptak CP, Fenwick MK, Hsieh CL, Weiland GA, Oswald RE, " Dynamics of cleft closure of the GluA2 ligand-binding domain in the presence of full and partial agonists revealed by hydrogen-deuterium exchange ," J Biol Chem. (cornell.edu)