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Dortez S, Pacheco M, Gasull T, Crevillen AG, Escarpa A. A dual colorimetric-electrochemical microfluidic paper-based analytical device for point-of-care testing of ischemic strokes. LAB ON A CHIP 2024. [PMID: 39118539 DOI: 10.1039/d4lc00398e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
A novel microfluidic paper-based analytical device with dual colorimetric and electrochemical detection (dual μPAD) was developed for the assessment of transferrin saturation (TSAT) in samples from ischemic stroke patients. TSAT was calculated from the ratio between transferrin-bound iron, which was colorimetrically measured, and the total iron-binding capacity, which was electrochemically measured. To this end, a μPAD was smartly designed, which integrated both colorimetric and electrochemical detection reservoirs, communicating via a microchannel acting as a chemical reactor, and with preloading/storing capabilities (reagent-free device). This approach allowed the dual and simultaneous determination of both parameters, providing an improvement in the reliability of the results due to an independent signal principle and processing. The μPADs were validated by analyzing a certified reference material, showing excellent accuracy (Er ≤ 5%) and precision (RSD ≤ 2%). Then they were applied to the analysis of diagnosed serum samples from ischemic stroke patients. The results were compared to those provided by a free-interference method (urea-PAGE). Impressively, both methods exhibited a good correlation (r = 0.96, p < 0.05) and no significant differences were found between them (slope 1.0 ± 0.1 and the intercept 1 ± 4, p < 0.05), demonstrating the excellent accuracy of our approach during the analysis of complex samples from ischemic stroke patients, using just 90 μL of clinical samples and taking less than 90 min in comparison with the 18 hours required by the urea-PAGE approach. The developed fully integrated colorimetric-electrochemical μPAD is a promising ready to use reagent-free device for the point-of-care testing of TSAT, which can be used to assist physicians in the fast diagnosis and prognosis of ischemic strokes, where the decision-time is crucial for the patient's survival.
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Affiliation(s)
- Silvia Dortez
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcala, 28802, Alcala de Henares, Madrid, Spain.
| | - Marta Pacheco
- Department of Chemistry in Pharmaceutical Sciences, Analytical Chemistry, Faculty of Pharmacy, Complutense University of Madrid, 28040 Madrid, Spain
| | - Teresa Gasull
- Cellular and Molecular Neurobiology Research Group, Department of Neurosciences, Germans Trias i Pujol Research Institute (IGTP), 08916, Badalona, Barcelona, Spain
| | - Agustín G Crevillen
- Department of Analytical Sciences, Faculty of Sciences, Universidad Nacional de Educación a Distancia (UNED), 28040, Madrid, Spain.
| | - Alberto Escarpa
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcala, 28802, Alcala de Henares, Madrid, Spain.
- Chemical Research Institute "Andrés M. Del Río" (IQAR), University of Alcala, 28802, Alcala de Henares, Madrid, Spain
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2
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Investigation of the electrochemical behavior of cysteine by hyphenation of electrochemistry and mass spectrometry. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-02943-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
AbstractThe identification of the reaction product species stands out as one of the main limitations of the classical electrochemical techniques. This can be overcome by the combination of electrochemistry (EC) to mass spectrometry (MS). Moreover, the method can be further enhanced by implementing a separation technique between EC and MS. In the present work, the oxidation behavior of cysteine with coupling EC directly to MS (real-time EC–MS) or by implementing capillary electrophoresis (CE), to separate the analytes before the injection into the mass spectrometer, is investigated. Electrochemical measurements and pre-treatment were applied on screen-printed electrodes (SPEs) based on carbon. Direct EC–MS measurements were carried out with a modified flow cell, while online EC–CE–MS studies of cysteine oxidation were conducted with a custom-made setup. An electrochemical conversion yield for cysteine of up to 69% was found. Cystine, cysteic acid, and cysteine sulfinic acid were found as oxidation products. The identification of these product species was carried out according to their migration behavior in CE, and mass-to-charge ratios in addition to their isotopic patterns shown in the MS spectra.
Graphical abstract
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Ratautaite V, Brazys E, Ramanaviciene A, Ramanavicius A. Electrochemical Sensors based on L-Tryptophan Molecularly Imprinted Polypyrrole and Polyaniline. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116389] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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4
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Moulaee K, Neri G. Electrochemical Amino Acid Sensing: A Review on Challenges and Achievements. BIOSENSORS 2021; 11:502. [PMID: 34940259 PMCID: PMC8699811 DOI: 10.3390/bios11120502] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/18/2021] [Accepted: 11/25/2021] [Indexed: 05/05/2023]
Abstract
The rapid growth of research in electrochemistry in the last decade has resulted in a significant advancement in exploiting electrochemical strategies for assessing biological substances. Among these, amino acids are of utmost interest due to their key role in human health. Indeed, an unbalanced amino acid level is the origin of several metabolic and genetic diseases, which has led to a great need for effective and reliable evaluation methods. This review is an effort to summarize and present both challenges and achievements in electrochemical amino acid sensing from the last decade (from 2010 onwards) to show where limitations and advantages stem from. In this review, we place special emphasis on five well-known electroactive amino acids, namely cysteine, tyrosine, tryptophan, methionine and histidine. The recent research and achievements in this area and significant performance metrics of the proposed electrochemical sensors, including the limit of detection, sensitivity, stability, linear dynamic range(s) and applicability in real sample analysis, are summarized and presented in separate sections. More than 400 recent scientific studies were included in this review to portray a rich set of ideas and exemplify the capabilities of the electrochemical strategies to detect these essential biomolecules at trace and even ultra-trace levels. Finally, we discuss, in the last section, the remaining issues and the opportunities to push the boundaries of our knowledge in amino acid electrochemistry even further.
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Affiliation(s)
- Kaveh Moulaee
- Department of Engineering, University of Messina, C.Da Di Dio, I-98166 Messina, Italy;
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran 16846-13114, Iran
| | - Giovanni Neri
- Department of Engineering, University of Messina, C.Da Di Dio, I-98166 Messina, Italy;
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Dutta B, Nigam VK, Panja AS, Shrivastava S, Bandopadhyay R. Statistical optimisation of esterase from Salinicoccus roseus strain RF1H and its potential application in synthetic dye decolorisation. BIOCATAL BIOTRANSFOR 2021. [DOI: 10.1080/10242422.2021.2010718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Bhramar Dutta
- Department of Botany, The University of Burdwan, Bardhaman, India
| | - Vinod Kumar Nigam
- Department of Bio-Engineering, Birla Institute of Technology, Ranchi, India
| | - Anindya Sundar Panja
- Post-Graduate Department of Biotechnology and Biochemistry, Oriental Institute of Science and Technology, Burdwan, India
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6
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Gisbert-González JM, Ferre-Vilaplana A, Herrero E. Glutamate adsorption on gold electrodes at different pH values. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Murinzi TW, Watkins GM, Shumba M, Nyokong T. Electrocatalytic detection of l-cysteine using molybdenum POM doped-HKUST-1 metal organic frameworks. J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1907573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Tafadzwa W. Murinzi
- Chemistry Department, Rhodes University, Grahamstown, South Africa
- Chemical Technology Department, Midlands State University, Gweru, Zimbabwe
| | | | - Munyaradzi Shumba
- Chemical Technology Department, Midlands State University, Gweru, Zimbabwe
- Nanotechnology Innovation Centre, Rhodes University, Grahamstown, South Africa
| | - Tebello Nyokong
- Nanotechnology Innovation Centre, Rhodes University, Grahamstown, South Africa
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Pogacean F, Varodi C, Coros M, Kacso I, Radu T, Cozar BI, Mirel V, Pruneanu S. Investigation of L-Tryptophan Electrochemical Oxidation with a Graphene-Modified Electrode. BIOSENSORS 2021; 11:36. [PMID: 33525714 PMCID: PMC7911164 DOI: 10.3390/bios11020036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/19/2021] [Accepted: 01/25/2021] [Indexed: 12/25/2022]
Abstract
A graphene sample (EGr) was prepared by electrochemical exfoliation of graphite rods in solution containing 0.05 M (NH4)2SO4 + 0.1 M H3BO3 + 0.05 M NaCl. The exfoliation was performed by applying a constant voltage (12 V) between the graphite rods, while the temperature was kept constant (18 °C) with a temperature-controlled cryostat. The structural investigation of the graphene sample, performed by X-ray powder diffraction (XRD), revealed that the sample consists of a mixture of few-layer (69%), multi-layer graphene (14%) and graphene oxide (17%). In addition, XPS analysis proved that the sample was triple-doped with heteroatoms such as nitrogen (1.7 at%), sulfur (2.5 at%), and boron (3 at%). The sample was deposited onto the surface of a clean, glassy carbon electrode (GC) and investigated for the non-enzymatic electrochemical detection of L-tryptophan (TRP). The electrocatalytic properties of the EGr/GC electrode led to a considerable decrease in the oxidation potential from +0.9 V (bare GC) to +0.72 V. In addition, the EGr/GC electrode has higher sensitivity (two times) and a lower detection limit (ten times) in comparison with the bare GC electrode.
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Affiliation(s)
| | | | | | | | | | | | | | - Stela Pruneanu
- National Institute for Research and Development of Isotopic and Molecular Technologies, Donat Street, No. 67-103, 400293 Cluj-Napoca, Romania; (F.P.); (C.V.); (M.C.); (I.K.); (T.R.); (B.I.C.); (V.M.)
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Dourado AH, De Angelis LD, Arenz M, Córdoba de Torresi SI. L-cysteine oxidation on Pt and Au rotating disk electrodes: Insights on mixed controlled kinetics. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114920] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Cetó X, Pérez S. Voltammetric electronic tongue for vinegar fingerprinting. Talanta 2020; 219:121253. [PMID: 32887144 DOI: 10.1016/j.talanta.2020.121253] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/02/2020] [Accepted: 06/07/2020] [Indexed: 12/30/2022]
Abstract
The application of a voltammetric electronic tongue (ET) towards the classification and authentication of vinegar is reported. Vinegar samples of different varieties were analysed with a three-sensor array, without performing any sample pre-treatment, but only an electrochemical cleaning stage between sample measurements to avoid fouling onto the electrode surfaces. Next, the use of discrete cosine transform (DCT) for the compression and reduction of signal complexity in voltammetric measurements was explored, and the number of coefficients was optimized through its inverse transform. Finally, the obtained coefficients were analysed by principal component analysis (PCA) to attempt the discrimination of the different vinegars and by linear discriminant analysis (LDA) to build a model that allows its categorization. Satisfactory results were obtained overall, with a classification rate of 100% for the external test subset (n = 15).
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Affiliation(s)
- Xavier Cetó
- Department of Chemical Engineering and Analytical Chemistry, Faculty of Chemistry, Universitat de Barcelona, 08028, Barcelona, Spain; Department of Chemistry, Faculty of Sciences, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain.
| | - Sandra Pérez
- Department of Chemistry, Faculty of Sciences, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain
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Córdova-Rivas S, Araujo-Huitrado JG, Rivera-Avalos E, Escalante-García IL, Durón-Torres SM, López-Hernández Y, Hernández-López H, López L, de Loera D, López JA. Differential Proliferation Effect of the Newly Synthesized Valine, Tyrosine and Tryptophan-Naphthoquinones in Immortal and Tumorigenic Cervical Cell Lines. Molecules 2020; 25:molecules25092058. [PMID: 32354078 PMCID: PMC7248809 DOI: 10.3390/molecules25092058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/17/2020] [Accepted: 04/21/2020] [Indexed: 12/12/2022] Open
Abstract
We previously showed that microwave assisted synthesis is the best method for the synthesis of naphthoquinone amino acid and chloride-naphthoquinone amino acid derivatives by a complete evaluation of reaction conditions such as stoichiometry, bases, and pH influence. Following the same strategy, we synthesized chloride and non-chloride tyrosine, valine, and tryptophan-naphthoquinones achieving 85–95%, 80–92%, and 91–95% yields, respectively. The cyclic voltammetry profiles showed that both series of naphthoquinone amino acid derivatives mainly display one redox reaction process. Overall, chloride naphthoquinone amino acid derivatives exhibited redox potential values (E1/2) more positive than non-chloride compounds. The six newly synthesized compounds were tested in HPV positive and negative as well as in immortal and tumorigenic cell lines to observe the effects in different cellular context simulating precancerous and cancerous status. A dose-response was achieved to determine the IC50 of six newly synthesized compounds in SiHa (Tumorigenic and HPV16 positive), CaLo (Tumorigenic and HPV18 positive), C33-A (Tumorigenic and HPV negative) and HaCaT (Keratinocytes immortal HPV negative) cell lines. Non-chloride tryptophan-naphthoquinone (3c) and chloride tyrosine-naphthoquine (4a) effects were more potent in tumorigenic SiHa, CaLo, and C33-A cells with respect to non-tumorigenic HaCaT cells. Interestingly, there seems to be a differential effect in non-chloride and chloride naphthoquinone amino acid derivatives in tumorigenic versus non tumorigenic cells. Considering all naphthoquinone amino acid derivatives that our group synthesized, it seems that hydrophobic and aromatic amino acids have the greatest effect on cell proliferation inhibition. These results show promising compounds for cervical cancer treatment.
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Affiliation(s)
- Sergio Córdova-Rivas
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Zacatecas 98068, Mexico
| | - Jorge Gustavo Araujo-Huitrado
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Zacatecas 98068, Mexico
| | - Ernesto Rivera-Avalos
- School of Chemistry, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78210, Mexico
| | | | - Sergio M. Durón-Torres
- Unidad Académica de Ciencias Químicas, Universidad Autónoma de Zacatecas, Zacatecas 98160, Mexico
| | - Yamilé López-Hernández
- CONACYT, Laboratorio de Metabolómica y Proteómica, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Zacatecas 98068, Mexico
| | - Hiram Hernández-López
- Unidad Académica de Ciencias Químicas, Universidad Autónoma de Zacatecas, Zacatecas 98160, Mexico
| | - Lluvia López
- Instituto de Investigación de Zonas Desérticas, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78377, Mexico
| | - Denisse de Loera
- School of Chemistry, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78210, Mexico
- Correspondence: (D.d.L.); (J.A.L.); Tel.: +52-444-826-2300 x6415 (D.d.L.); +52-492-149-2648 (J.A.L.)
| | - Jesús Adrián López
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Zacatecas 98068, Mexico
- Correspondence: (D.d.L.); (J.A.L.); Tel.: +52-444-826-2300 x6415 (D.d.L.); +52-492-149-2648 (J.A.L.)
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12
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Sugawara K, Ishizaki S, Kodaira K, Kuramitz H, Kadoya T. Fabrication of a cell-recognition/electron-transfer/cross-linker, peptide-immobilized electrode for the sensing of K562 cells. Anal Chim Acta 2020; 1116:53-61. [PMID: 32389189 DOI: 10.1016/j.aca.2020.03.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 03/08/2020] [Accepted: 03/23/2020] [Indexed: 02/07/2023]
Abstract
We designed an electrode that has the ability to sense a target cell. This new electrode is intended for use in cell recognition via electron-transfer and cross-linker peptide immobilization. Myelopeptide-4 (MP-4:FRPRIMTP) is a marrow-origin peptide that interacts with receptors of the human leukemia cell line (K562 cells), and allows their differentiation. The YYYYC electron-transfer peptide improves the electron-transfer accessibility from an electroactive compound to an electrode. Oligoalanine plays the role of a cross-linker that immobilizes a peptide series (Ac-FRPRIMTPYYYYCAAAAA) to collagen, which then allows it to be cast onto an electrode. Use of the electrode with a peptide increased the peak currents of [Fe(CN)6]4-/3- and also improved the reversibility of redox. These improvements are due to the interaction between [Fe(CN)6]4-/3- and the peptide. When electrochemical impedance spectroscopy (EIS) measurements were carried out using a collagen/peptide probe-immobilized electrode, the electron transfer resisitance was lower than that without the peptide. The detection of K562 cells was based on an increase in resistance, because MP-4 was bound to the receptors on the cell surface. The responses were linear and ranged in number from 27 to 2,000 cells/mLwith a detection limit of 8 cells/mL. Recoveries of 50 and 1,000 cells/mL in human serum were accomplished at rates of 98 and 101%, respectively. Consequently, the proposed procedure is a powerful new concept for cytosensing.
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Affiliation(s)
| | - Sora Ishizaki
- Maebashi Institute of Technology, Gunma, 371-0816, Japan
| | - Keito Kodaira
- Maebashi Institute of Technology, Gunma, 371-0816, Japan
| | - Hideki Kuramitz
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, Toyama, 930-8555, Japan
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Sugawara K, Ishizaki S, Kuramitz H, Kadoya T. Electrochemical Sensing of Ovalbumin Based on the Interaction between Lysozyme Origin/Tyrosine‐rich Peptides Modified on Magnetic Beads and Oligothreonine/Ovalbumin‐origin Peptide. ELECTROANAL 2020. [DOI: 10.1002/elan.201900336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
| | - Sora Ishizaki
- Maebashi Institute of Technology Gunma 371-0816 Japan
| | - Hideki Kuramitz
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for ResearchUniversity of Toyama Toyama 930-8555 Japan
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Colombo RNP, Gonçales VR, Gautam S, Tilley R, Gooding JJ, Córdoba de Torresi SI. Spatially localized electrodeposition of multiple metals via light-activated electrochemistry for surface enhanced Raman spectroscopy applications. Chem Commun (Camb) 2020; 56:5831-5834. [DOI: 10.1039/d0cc01661f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Light is used to activate spatially and temporally resolved electrodeposition of multiple metals onto silicon.
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Affiliation(s)
| | | | - Shreedhar Gautam
- School of Chemistry
- University of New South Wales Sydney
- Australia
| | - Richard Tilley
- School of Chemistry
- University of New South Wales Sydney
- Australia
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15
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Dourado AHB, Munhos RL, Silva NA, Colle VD, Carvalho GGA, Oliveira PV, Arenz M, Varela H, Córdoba de Torresi SI. Opportunities and Knowledge Gaps of SO2 Electrocatalytic Oxidation for H2 Electrochemical Generation. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01336] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- André H. B. Dourado
- Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 05508-080 São Paulo, São Paulo, Brazil
| | - Renan L. Munhos
- Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 05508-080 São Paulo, São Paulo, Brazil
| | - Norberto A. Silva
- Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 05508-080 São Paulo, São Paulo, Brazil
| | - Vinícius Del Colle
- Departamento de Química, Universidade Federal de Alagoas−Campus Arapiraca, Av. Manoel Severino Barbosa, 57309-005 Arapiraca, Alagoas, Brazil
- Instituto de Química de São Carlos, Universidade de São Paulo, C.P. 780, CEP 13560-970, São Carlos, São Paulo, Brazil
| | - Gabriel G. A. Carvalho
- Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 05508-080 São Paulo, São Paulo, Brazil
| | - Pedro V. Oliveira
- Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 05508-080 São Paulo, São Paulo, Brazil
| | - Matthias Arenz
- Department of Chemistry and Biochemistry, Universität Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Hamilton Varela
- Instituto de Química de São Carlos, Universidade de São Paulo, C.P. 780, CEP 13560-970, São Carlos, São Paulo, Brazil
| | - Susana I. Córdoba de Torresi
- Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 05508-080 São Paulo, São Paulo, Brazil
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Dourado AHB, Arenz M, Córdoba de Torresi SI. Mechanism of Electrochemical L‐Cysteine Oxidation on Pt. ChemElectroChem 2019. [DOI: 10.1002/celc.201801575] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- André H. B. Dourado
- Instituto de QuímicaUniversidade de São Paulo Av. Prof. Lineu Prestes 05508-080 São Paulo – SP Brazil
| | - Matthias Arenz
- Chemistry departamentKøbenhavn Universitet Universistetsparken 5 2100 Copenhagen, Denmark
- Present address: Department of Chemistry and BiochemistryUniversität Bern Freiestrasse 3 CH – 3012 Bern Switzerland
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Dourado AHB, Silva RA, Torresi RM, Sumodjo PTA, Arenz M, Cordoba de Torresi SI. Kinetics, Assembling, and Conformation Control of L‐Cysteine Adsorption on Pt Investigated by
in situ
FTIR Spectroscopy and QCM‐D. Chemphyschem 2018; 19:2340-2348. [DOI: 10.1002/cphc.201800380] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Indexed: 01/26/2023]
Affiliation(s)
- André H. B. Dourado
- Depto. Química FundamentalInstituto de QuímicaUniversidade de São Paulo Av. Prof. Lineu Prestes 05508-080 São Paulo – SP Brazil
| | - Rubens A. Silva
- Depto. Química FundamentalInstituto de QuímicaUniversidade de São Paulo Av. Prof. Lineu Prestes 05508-080 São Paulo – SP Brazil
| | - Roberto M. Torresi
- Depto. Química FundamentalInstituto de QuímicaUniversidade de São Paulo Av. Prof. Lineu Prestes 05508-080 São Paulo – SP Brazil
| | - Paulo T. A. Sumodjo
- Depto. Química FundamentalInstituto de QuímicaUniversidade de São Paulo Av. Prof. Lineu Prestes 05508-080 São Paulo – SP Brazil
| | - Matthias Arenz
- Chemistry DepartmentKøbenhavn Universitet Universistetsparken 5 2100 Copenhagen Denmark
- Present Adress: Department of Chemistry and BiochemistryUniversität Bern Freiestrasse 3 CH – 3012 Bern Switzerland
| | - Susana I. Cordoba de Torresi
- Depto. Química FundamentalInstituto de QuímicaUniversidade de São Paulo Av. Prof. Lineu Prestes 05508-080 São Paulo – SP Brazil
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