Bibliografías temáticas / Ferricyanide ion

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Literatura académica sobre el tema "Ferricyanide ion"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 20 de febrero de 2023

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Artículos de revistas sobre el tema "Ferricyanide ion"

1

Hipps, K. W., Erik Dunkle y Ursula Mazur. "Adsorption of ferricyanide ion on alumina". Langmuir 4, n.º 2 (marzo de 1988): 463–69. http://dx.doi.org/10.1021/la00080a038.

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Carvalho, Rui N. L., Cristina M. Cordas y Luís J. P. da Fonseca. "Electrode Kinetics of Ion Jelly and Ion Sol-Gel Redox Materials on Screen-Printed Electrodes". Applied Sciences 12, n.º 4 (17 de febrero de 2022): 2087. http://dx.doi.org/10.3390/app12042087.

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Several hydrogel materials have been proposed for drug delivery systems and other purposes as interfacial materials, such as components for fuel cells and immobilization of biomolecules. In the present work, two materials, an ion sol-gel, based on 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, and an ion jelly (1-ethyl-3-methylimidazolium ethylsulfate) film deposited on carbon screen-printed electrodes, were electrochemically characterized. The electrode kinetics of ion jelly and ion sol-gel materials were compared by using ferrocyanide/ferricyanide redox reaction couple as a model redox process. Diffusion coefficients were calculated and compared to those obtained with the model redox couple in non-modified electrodes. Results pointed to a decrease of two and four orders of magnitude in the diffusion coefficients, respectively, for ion jelly and ion sol-gel film modified electrodes. Heterogeneous electron transfer constants for the ferrocyanide/ferricyanide ion redox process were also determined for modified and non-modified electrodes, in which the ion sol-gel film modified electrode presented the lower values. This work sought to contribute to the understanding of these materials’ properties, with emphasis on their diffusion, conductivity, and electrochemical behavior, namely reversibility, transfer coefficients, and kinetics, and optimize the most suitable properties for different possible applications, such as drug delivery.
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3

Mbadcam, J. Ketcha, G. F. Tchatat Wouaha y V. Hambate Gomdje. "Adsorption of Ferricyanide Ion onActivated Carbon and γ-Alumina". E-Journal of Chemistry 7, n.º 3 (2010): 721–26. http://dx.doi.org/10.1155/2010/645479.

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Iron-cyanide complexes are present in soil and ground water due to anthropogenic inputs. We compared the adsorption of ferricyanide ion, on two commercial activated carbons (COM3 and COM4) and γ-alumina (A1G) in aqueous solution. Isotherm parameters obtained from batch experiments of iron-cyanide complex adsorption on these adsorbents were carried-out. The mass of the adsorbents were varied at 40 mg, 60 mg and 100 mg and the inorganic ion initial concentrations, Coalso varied between 3.04×10-4and 2.43×10-3mol/L. The equilibrium data obtained were tested by using the Langmuir and Freundlich isotherm models. These data fit well with the Langmuir and Freundlich isotherm models at this low inorganic ion initial concentration.
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Engel, Nicholas, Sergey I. Bokarev, Alexandre Moguilevski, Azhr A. Raheem, Ruba Al-Obaidi, Tobias Möhle, Gilbert Grell et al. "Light-induced relaxation dynamics of the ferricyanide ion revisited by ultrafast XUV photoelectron spectroscopy". Physical Chemistry Chemical Physics 19, n.º 22 (2017): 14248–55. http://dx.doi.org/10.1039/c7cp01288h.

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Bunting, John W. y Dimitrios Stefanidis. "Relative reactivities of heteroaromatic cations toward ferricyanide ion oxidation". Journal of Organic Chemistry 51, n.º 11 (mayo de 1986): 2068–71. http://dx.doi.org/10.1021/jo00361a025.

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Domingo, Pedro L., Begoña García y José M. Leal. "Acid–base behaviour of the ferricyanide ion in perchloric acid media. Spectrophotometric and kinetic study". Canadian Journal of Chemistry 68, n.º 2 (1 de febrero de 1990): 228–35. http://dx.doi.org/10.1139/v90-030.

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A wide study was carried out of the acid–base behaviour of ferricyanide ions in aqueous perchloric acid media in the range 0.1–11.5 M. This study shows that protonation and decomposition of the ferricyanide ions occur simultaneously. The three successive protonation equilibria were found in the acidity ranges 0.1–4.0, 3.5–8.5, and 7.0–11.5 M HClO4, respectively. A kinetic study was also made of the decomposition reaction at 60 °C. The kinetic data are explained by considering a reaction mechanism involving homolytic and heterolytic dissociation steps. The homolytic and heterolytic rate constants corresponding to each of the four protonated species were determined, along with the acid–base protonation constants, pK1 = −6.25 ± 0.10; pK2 = −3.23 ± 0.03; and pK3 = −0.60 ± 0.02. Keywords: acid–base behaviour, protonated species, decomposition, homolytic dissociation, heterolytic dissociation.
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Bunting, John W. y Dimitrios Stefanidis. "Kinetics of the oxidation of isoquinolinium cations by ferricyanide ion". Journal of Organic Chemistry 51, n.º 11 (mayo de 1986): 2060–67. http://dx.doi.org/10.1021/jo00361a024.

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del CASTILLO-OLIVARES, Antonio, Miguel A. MEDINA, Ignacio NÚÑEZ de CASTRO y Javier MÁRQUEZ. "Purification and characterization of a plasma membrane ferricyanide-utilizing NADH dehydrogenase from Ehrlich tumour cells". Biochemical Journal 314, n.º 2 (1 de marzo de 1996): 587–93. http://dx.doi.org/10.1042/bj3140587.

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A ferricyanide-utilizing NADH dehydrogenase (NADH-ferricyanide oxidoreductase) from the plasma membrane of Ehrlich ascites tumour cells has been purified about 1500-fold to apparent homogeneity. The method comprises the isolation of an enriched plasma membrane fraction, solubilization with Triton X-100, ion-exchange chromatography, ammonium sulphate precipitation, Cibacron Blue chromatography and fast-protein liquid chromatography with a Superose-6 gel filtration column. The specific activity of the final pool was more than 61 units/mg protein. The pure enzyme examined by SDS/PAGE displayed only one type of subunit with an apparent molecular mass of 32.0 kDa. The molecular mass of the native protein (117.0 kDa) was estimated by gel filtration; these results suggest a protein composed of four subunits of identical molecular mass. The enzyme was stable in the pH interval between 6 and 9, with maximum activity at pH values from 7.5 to 8.5. The purified enzyme showed Michaelis–Menten kinetics for the substrates, with apparent Km values of 4.3×10-5 M and 6.7×10-5 M for NADH and ferricyanide respectively. The isolated protein was strongly inhibited by Zn2+ and the thiol-specific reagents mersalyl and p-chloromercuribenzenesulphonic acid.
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9

HONDA, Kazuhiro. "Acceleration of Reduction of Ferricyanide Ion by Cyanide Ion in Aqueous Solution under Freezing Process." Journal of the Surface Finishing Society of Japan 50, n.º 2 (1999): 225–30. http://dx.doi.org/10.4139/sfj.50.225.

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Maneva, Ana, Borislava Taleva y Lilia Maneva. "Lactoferrin-Protector against Oxidative Stress and Regulator of Glycolysis in Human Erythrocytes". Zeitschrift für Naturforschung C 58, n.º 3-4 (1 de abril de 2003): 256–62. http://dx.doi.org/10.1515/znc-2003-3-420.

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Binding of lactoferrin (Lf) to its membrane receptors requires an electron for the reduction of Fe3+LF to Fe2+LF. It is possible that glyceraldehyde D3-phosphate dehydrogenase, a glycolytic enzyme part of the erythrocyte membrane, delivers that electron. Then Lf, obtaining an electron from the coenzyme NADH, might stimulate glycolysis, which requires the oxidised state of the coenzyme NAD+. Such possibility is supported by the finding that another extracellular e- acceptor - potassium ferricyanide activates glycolysis by the similar mechanism. Present results show that ferricyanide inhibited the specific 59Fe-lactoferrin binding to its erythrocyte membrane receptors. It may be assumed that ferricyanide competes with lactoferrin for an electron which leads to decrease of the binding of 59Fe-lactoferrin to its receptors. Lactoferrin (50 and 100 nm), similar to ferricyanide, increased the accumulation of lactate (respectively by 25% and 30%). These results support the assumption that ferricyanide and lactoferrin are final acceptors of a common electron transport chain connected with the regulation of glycolysis.We established an antioxidative effect of lactoferrin on erythrocytes, which was expressed as: a) an influence on content and on activity of intracellular antioxidants - namely an enhancement of the content of reduced glutathione; b) a decreased content both of products of lipid peroxidation (thiobarbituric acid reactive substances) and hemolysis under normal conditions and oxidative stress.Lactoferrin is capable to bind metal ions and thus to block their catalytic participation in the oxidative disturbances of the membrane. In most of our experiments there were no metal ions in the incubation mixtures (except those stimulating oxidative stress). Our results showed that Lf limited both the generation of thiobarbituric acid reactive substances and hemolysis in the absence of metal ions in the media, as well as in their presence. These facts suggest that probably the antioxidative property of lactoferrin is glycolysis stimulation, leading to increased formation of ATP, which is necessary to maintain the ion gradient, membrane potential and morphology of the erythrocyte.
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Tesis sobre el tema "Ferricyanide ion"

1

Morris, Kristy y n/a. "Optimisation of the Biocatalytic Component in a Ferricyanide Mediated Approach to Rapid Biochemical Oxygen Demand Analysis". Griffith University. School of Environmental and Applied Science, 2005. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20060906.121244.

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A novel rapid method for the determination of biochemical oxygen demand (BOD) has been developed. By replacing oxygen, the terminal electron acceptor in the microbial oxidation of organic substrate, with the ferricyanide ion, a significant increase in the rate of the biochemical reaction could be achieved. This arises from the high solubility of the ferricyanide ion (compared to oxygen); therefore allowing for elevated microbial populations without rapid depletion of the electron acceptor. Therefore, the BOD of a sample can be determined within 1-3 hours compared to 5-days with the standard BOD5 assay. A range of microorganisms were shown to be able to use the ferricyanide ion as an alternative electron acceptor for the biodegradation of a range of organic compounds in the ferricyanide mediated BOD (FM-BOD) assay. The most suitable biocatalyst in the FM-BOD method, however, was shown to be a mixture of microorganisms that was capable of degrading large amounts and types of compounds. These mixed consortia of microorganisms included a synthetic mixture prepared in our laboratory and two commercially available consortia, BODseedTM and Bi-ChemTM. When these seed materials were employed in the FM-BOD assay, the method was shown to closely estimate the BOD5 values of real wastewater samples. The linear dynamic working range of the FM-BOD method was also greatly extended compared to the standard BOD5 assay (nearly 50 times greater) and other oxygen based BOD biosensors. The immobilisation of the microbial consortia by both gel entrapment and freeze-drying methods was shown to greatly reduce the preparation and handling time of the mixed consortia for use in the FM-BOD method. Immobilisation of the mixed microbial consortium in LentiKats®, a PVA hydrogel, resulted in a marked increase in the stability of the biocatalyst. Diffusion limitations resulting from the gel matrix, however, reduced the rate and extent of the bioreaction as well as the linear dynamic working range of the method. Freeze-drying techniques were shown to circumvent some of the limitations identified with gel entrapment for the immobilisation of the mixed consortia. The freeze-dried consortia could be used off-the-shelf and demonstrated reduced diffusional restrictions. A marked decrease in the viability of the microorganisms was observed directly following the freeze-drying process and in subsequent storage. Carrageenan, however, was shown to afford a significant degree a protection to the cells during the freeze-drying process.
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Morris, Kristy. "Optimisation of the biocatalytic component in a ferricyanide mediated approach to rapid biochemical oxygen demand analysis". Thesis, Griffith University, 2005. http://hdl.handle.net/10072/367552.

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A novel rapid method for the determination of biochemical oxygen demand (BOD) has been developed. By replacing oxygen, the terminal electron acceptor in the microbial oxidation of organic substrate, with the ferricyanide ion, a significant increase in the rate of the biochemical reaction could be achieved. This arises from the high solubility of the ferricyanide ion (compared to oxygen); therefore allowing for elevated microbial populations without rapid depletion of the electron acceptor. Therefore, the BOD of a sample can be determined within 1-3 hours compared to 5-days with the standard BOD5 assay. A range of microorganisms were shown to be able to use the ferricyanide ion as an alternative electron acceptor for the biodegradation of a range of organic compounds in the ferricyanide mediated BOD (FM-BOD) assay. The most suitable biocatalyst in the FM-BOD method, however, was shown to be a mixture of microorganisms that was capable of degrading large amounts and types of compounds. These mixed consortia of microorganisms included a synthetic mixture prepared in our laboratory and two commercially available consortia, BODseedTM and Bi-ChemTM. When these seed materials were employed in the FM-BOD assay, the method was shown to closely estimate the BOD5 values of real wastewater samples. The linear dynamic working range of the FM-BOD method was also greatly extended compared to the standard BOD5 assay (nearly 50 times greater) and other oxygen based BOD biosensors. The immobilisation of the microbial consortia by both gel entrapment and freeze-drying methods was shown to greatly reduce the preparation and handling time of the mixed consortia for use in the FM-BOD method. Immobilisation of the mixed microbial consortium in LentiKats®, a PVA hydrogel, resulted in a marked increase in the stability of the biocatalyst. Diffusion limitations resulting from the gel matrix, however, reduced the rate and extent of the bioreaction as well as the linear dynamic working range of the method. Freeze-drying techniques were shown to circumvent some of the limitations identified with gel entrapment for the immobilisation of the mixed consortia. The freeze-dried consortia could be used off-the-shelf and demonstrated reduced diffusional restrictions. A marked decrease in the viability of the microorganisms was observed directly following the freeze-drying process and in subsequent storage. Carrageenan, however, was shown to afford a significant degree a protection to the cells during the freeze-drying process.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Environmental and Applied Science
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3

FOUCHARD, SEBASTIEN. "Separation americium curium lanthanides : caracterisation structurale et etude du mecanisme de dissolution selective de l'americium par les ions ferricyanure en milieu basique". Paris 11, 2000. http://www.theses.fr/2000PA112354.

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Contrairement aux autres elements transplutoniens, en milieu oxydant l'americium possede une forme soluble en solution basique. Cette propriete peut etre utilisee dans le cadre du retraitement des dechets nucleaires de haute activite afin d'extraire l'americium, l'element le plus radiotoxique a long terme dans les dechets. Ce complexe soluble est obtenu lors de l'addition d'une solution basique d'ions ferricyanure fe(cn) 3 6 sur un precipite d'hydroxyde d'americium am(oh) 3. Cette methode entraine une extraction rapide de l'americium par l'apparition de sa forme soluble, les lanthanides et les autres transplutoniens demeurant a l'etat solide sous la forme d'hydroxydes, extremement insolubles. Lors de dissolutions de am(oh) 3 impliquant de grandes quantites d'americium, la formation du complexe soluble am est suivie par l'apparition d'un precipite rouge-brun en suspension dans la solution basique. Des essais de dissolution a partir de ce compose solide avec des solutions basique de fe(cn) 3 6 ont mis en evidence l'importance du milieu reactionnel sur les equilibres de solubilite, et la presence par consequent dans la solution d'une seconde espece soluble. Les etudes spectroscopiques (uv visible, exafs) sur ce solide rouge-brun ont permis de determiner son degre d'oxydation et sa structure chimique, na 2amo 2(oh) 3,nh 2o. La voltamperometrie cyclique a prouve qu'en presence d'ions ferricyanure, seul le degre d'oxydation am(v) pouvait etre atteint. La caracterisation spectroscopique du complexe soluble am et l'etude stchiometrique de la dissolution ont demontre que les ions fe(cn) 3 6 apres la phase de solubilisation de am(oh) 3 ne demeuraient pas a l'etat libre en solution. Cette observation confirme l'idee que la dissolution de l'americium est beaucoup plus complexe qu'une simple reaction d'oxydation par les ferricyanures. L'existence de complexes moleculaires entre amo 2 + et fe(cn) 6 3 est hautement probable.
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Capítulos de libros sobre el tema "Ferricyanide ion"

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Thiel, G. y G. O. Kirst. "Ferricyanide Changes the Transport Properties of Lamprothamnium Papulosum Plasmalemma". En Plasma Membrane Oxidoreductases in Control of Animal and Plant Growth, 263–71. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8029-0_29.

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Trockner, V. y E. Marrè. "Metabolic Changes Associated with Ferricyanide Reduction by Elodea Leaves". En Plasma Membrane Oxidoreductases in Control of Animal and Plant Growth, 422. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8029-0_61.

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Blein, Jean-Pierre, Isabelle Bourdil y René Scalla. "NADH-Ferricyanide Oxidoreductase Activity in Maize Root Cell Plasma Membrane". En Plasma Membrane Oxidoreductases in Control of Animal and Plant Growth, 399. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8029-0_45.

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Chalmers, J. D. C. y J. O. D. Coleman. "The Resolution of Two Phases of Ferricyanide Reduction in Cultured Carrot Cells". En Plasma Membrane Oxidoreductases in Control of Animal and Plant Growth, 401. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8029-0_47.

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Piknova, Barbora y Alan N. Schechter. "Measurement of NitriteNitrite in Blood Samples Using the Ferricyanide-Based Hemoglobin OxidationOxidation Assay". En Methods in Molecular Biology, 39–56. Totowa, NJ: Humana Press, 2010. http://dx.doi.org/10.1007/978-1-61737-964-2_4.

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Blein, Jean-Pierre y René Scalla. "Is the Proton Extrusion Coupled to Ferricyanide Reduction Mediated by the H + -ATPase ?" En Plasma Membrane Oxidoreductases in Control of Animal and Plant Growth, 409. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8029-0_53.

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García-Cañero, R. "Possible Role of Transplasma Membrane Ferricyanide Reductase in Mitogenic Activation of Rat Liver Cells". En Plasma Membrane Oxidoreductases in Control of Animal and Plant Growth, 27–36. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8029-0_4.

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Bown, Alan, Lesley Crawford y Damian Rodriguez. "The Relationships Between Ferricyanide Reduction and Associated Proton Efflux in Mechanically Isolated Photosynthetically Competent Mesophyll Cells". En Plasma Membrane Oxidoreductases in Control of Animal and Plant Growth, 243–52. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8029-0_27.

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Cutry, Anthony F., Alan J. Kinniburgh y Charles E. Wenner. "Stimulation of C-fos and C-myc Proto-Oncogene Expression by Ferricyanide, an Extracellular Electron Acceptor". En Plasma Membrane Oxidoreductases in Control of Animal and Plant Growth, 423. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8029-0_62.

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Buckhout, Thomas J. y Douglas G. Luster. "Purification of NADH-Ferricyanide and NADH-Duroquinone Reductases from Maize (Zea mays L.) Root Plasma Membranes". En Plasma Membrane Oxidoreductases in Control of Animal and Plant Growth, 81–88. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8029-0_9.

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Actas de conferencias sobre el tema "Ferricyanide ion"

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Hsu, Che-Wei, Wen-Chao Feng, Kang J. Chang y Gou-Jen Wang. "A Novel and Simple Electrochemical Glucose Biosensor Based on a Silicon Nanowire Array Electrode". En ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-34843.

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In this study, a novel and simple electrochemical glucose biosensor based on a silicon nanowire array (SNA) electrode was proposed. Metal-assisted etching (MAE) method using an AgNO3 and HF mixing solution as the etchant was employed to grow the silicon nanowire array (SNA) electrode. A thin gold shell is then sputtered over each silicon nanowire. Potassium ferricyanide, glucose oxidase (GOx), and a Nafion thin film were then sequentially coated onto the fabricated SNA for glucose detection. The processing time of the MAE and sputtering as well as the GOx concentration were optimized in terms of the redox peak currents of the SNA electrode. Compared with the corresponding plane gold electrode, the effective sensing area of the synthesized SNA electrode was measured to be 6.12 folds. Actual glucose detections demonstrated that the proposed SNA array electrode could operate in a linear range of 0.55 mM-11.02 mM and a very high sensitivity of 346 μA mM−1 cm−2. The proposed SNA electrode based glucose biosensor possesses advantages of simple fabrication process, low cost, and high sensitivity. It is feasible for future clinical applications.
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