Works by Araki, Koiti

Results: 60

First Evidence of High Microplastic Concentrations in Estuarine Litter Windrows of a World Heritage Site: The Paranaguá Estuarine Complex, Brazil.

Published in:

Water, Air & Soil Pollution, 2025, v. 236, n. 5, p. 1, doi. 10.1007/s11270-025-07899-y

By:

Krelling, Allan Paul;
Possatto, Fernanda Eria;
Maia, Gabrielly Rodrigues Anhaia;
Araki, Koiti;
Olivieri, Guilherme Bordin Ranea;
Nogueira, Helton Pereira

Publication type:

Article

TiO2-Based Light-Driven XOR/INH Logic GatesThis research was supported by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CT-Energ/CNPq 400.804/2003-4), Instituto do Milênio de Materiais Complexos (IMMC), and Rede de Nanotecnologia Molecular e Interfaces (RENAMI). We also thank Degussa for kindly supplying titanium dioxide P-25 and Prof. Ivo A. Hümmelgen for helpful discussions.

Published in:

Angewandte Chemie, 2006, v. 118, n. 19, p. 3215, doi. 10.1002/ange.200600076

By:

Luis F. O. Furtado;
Anamaria D. P. Alexiou;
Léia Gonçalves;
Henrique E. Toma;
Koiti Araki

Publication type:

Article

SYNTHESIS AND CHARACTERIZATION OF A MULTIBRIDGED PORPHYRIN COMPLEX CONTAINING PERIPHERAL BIS(BIPYRIDINE)-RUTHENIUM(II) GROUPS.

Published in:

Journal of Coordination Chemistry, 1993, v. 30, n. 1, p. 9, doi. 10.1080/00958979308022742

By:

Araki, Koiti;
Toma, Henrique E.

Publication type:

Article

Electrochemical Studies of Dimethyl Sulphoxide Complexes of Ruthenium(II/III) with EDTA.

Published in:

Journal of Coordination Chemistry, 1991, v. 24, n. 1, p. 1, doi. 10.1080/00958979109409729

By:

Toma, Henrique E.;
Araki, Koiti

Publication type:

Article

Metabolic Profiling of Murine Macrophages Exposed to Silver Nanoparticles at Dose and Time Dependencies.

Published in:

Particle & Particle Systems Characterization, 2023, v. 40, n. 4, p. 1, doi. 10.1002/ppsc.202200191

By:

Palomares, Cristofher Victor Vivas;
Barreto, Yan Borges;
Bexiga, Natalia Marchesan;
Toma, Sergio Hiroshi;
Julival dos Santos, Jonnatan;
Araki, Koiti;
Alencar, Adriano Mesquita;
Bloise, Antonio Carlos

Publication type:

Article

Influence of alkaline cation on the electrochemical behavior of stabilized alpha-Ni(OH).

Published in:

Journal of Solid State Electrochemistry, 2014, v. 18, n. 8, p. 2279, doi. 10.1007/s10008-014-2478-z

By:

Danczuk, Marins;
Nunes, Cícero;
Araki, Koiti;
Anaissi, Fauze

Publication type:

Article

A New Supramolecular Tetraruthenated Cobalt (II) Porphyrazine Displaying Outstanding Electrocatalytical Performance in Oxygen Evolution Reaction.

Published in:

Molecules, 2022, v. 27, n. 14, p. N.PAG, doi. 10.3390/molecules27144598

By:

Silva, Hiago N.;
Toma, Sérgio Hiroshi;
Hennemann, Artur Luís;
Gonçalves, Josué M.;
Nakamura, Marcelo;
Araki, Koiti;
Toyama, Marcos Makoto;
Toma, Henrique Eisi

Publication type:

Article

Porphyrin Derivative Nanoformulations for Therapy and Antiparasitic Agents.

Published in:

Molecules, 2020, v. 25, n. 9, p. 2080, doi. 10.3390/molecules25092080

By:

Deda, Daiana K.;
Iglesias, Bernardo A.;
Alves, Eduardo;
Araki, Koiti;
Garcia, Celia R. S.;
Cavaleiro, José A. S.

Publication type:

Article

Batch Injection Analysis Utilizing Modified Electrodes with Tetraruthenated Porphyrin Films for Acetaminophen Quantification.

Published in:

Electroanalysis, 2002, v. 14, n. 23, p. 1629, doi. 10.1002/elan.200290003

By:

Quintino, Maria S. M.;
Araki, Koiti;
Toma, Henrique E.;
Angnes, Lúcio

Publication type:

Article

Electrostatically Assembled Films for Improving the Properties of Tetraruthenated Porphyrin Modified Electrodes.

Published in:

Electroanalysis, 1998, v. 10, n. 7, p. 467, doi. 10.1002/(SICI)1521-4109(199806)10:7<467::AID-ELAN467>3.0.CO;2-W

By:

Azevedo, Carla M. N.;
Araki, Koiti;
Angnes, Lúcio;
Toma, Henrique E.

Publication type:

Article

Rectifying properties and photoconductivity of tetraruthenated nickel porphyrin films.

Published in:

Advanced Materials, 1995, v. 7, n. 6, p. 554, doi. 10.1002/adma.19950070609

By:

Araki, Koiti;
Angnes, Lúcio;
Toma, Henrique E.

Publication type:

Article

A Phthalocyanine Derivate Mouthwash to Gargling/Rinsing as an Option to Reduce Clinical Symptoms of COVID-19: Case Series.

Published in:

Clinical, Cosmetic & Investigational Dentistry, 2021, v. 13, p. 47, doi. 10.2147/CCIDE.S295423

By:

Orcina, Bernardo da Fonseca;
Vilhena, Fabiano Vieira;
Oliveira, Rodrigo Cardoso de;
Alves, Lucas Marques da Costa;
Araki, Koiti;
Toma, Sérgio Hiroshi;
Zangrando, Mariana Schutzer Ragghianti;
Santos, Paulo Sérgio da Silva

Publication type:

Article

Supramolecular Approach to Gold Nanoparticle/Triruthenium Cluster Hybrid Materials and Interfaces.

Published in:

European Journal of Inorganic Chemistry, 2011, v. 2011, n. 10, p. 1640, doi. 10.1002/ejic.201001118

By:

Toma, Sergio H.;
Santos, Jonnatan J.;
Araki, Koiti;
Toma, Henrique E.

Publication type:

Article

Controlled Stabilization and Flocculation of Gold Nanoparticles by Means of 2-Pyrazin-2-ylethanethiol and Pentacyanidoferrate(II) Complexes.

Published in:

European Journal of Inorganic Chemistry, 2007, v. 2007, n. 21, p. 3356

By:

Sergio H. Toma;
Juliano A. Bonacin;
Koiti Araki;
Henrique E. Toma

Publication type:

Article

Proton-Coupled Redox Chemistry, Oxidative Reactivity, and Electronic Characterization of Aqua-, Hydroxo-, and Oxo-Triruthenium Clusters.

Published in:

European Journal of Inorganic Chemistry, 2006, v. 2006, n. 7, p. 1487

By:

Genebaldo S. Nunes;
Anamaria D. P. Alexiou;
Koiti Araki;
André L. B. Formiga;
Reginaldo C. Rocha;
Henrique E. Toma

Publication type:

Article

Steric and Catalytic Effects in Tetraruthenated Manganese Porphyrins.

Published in:

European Journal of Inorganic Chemistry, 2006, v. 2006, n. 4, p. 850

By:

Ildemar Mayer;
Genebaldo S. Nunes;
Henrique E. Toma;
Koiti Araki

Publication type:

Article

Influence of the relative amounts of crystalline and amorphous phases on the mechanical properties of polyamide-6 nanocomposites.

Published in:

Journal of Applied Polymer Science, 2012, v. 125, n. 4, p. 3239, doi. 10.1002/app.36509

By:

Gargalaka, João;
Couto, Ricardo A. A.;
Constantino, Vera R. L.;
Toma, Henrique E.;
Araki, Koiti

Publication type:

Article

Supramolecular Cationic Tetraruthenated Porphyrin and Light-Induced Decomposition of 2-Deoxyguanosine Predominantly Via a Singlet Oxygen-Mediated Mechanism.

Published in:

Photochemistry & Photobiology, 1998, v. 68, n. 5, p. 698, doi. 10.1111/j.1751-1097.1998.tb02532.x

By:

Ravanat, Jean-Luc;
Cadet, Jean;
Araki, Koiti;
Toma, Henrique E.;
Medeiros, Marisa H. G.;
Mascio, Paolo Di

Publication type:

Article

Supramolecular Cationic Tetraruthenated Porphyrin Induces Single-Strand Breaks and 8-Oxo-7,8-dihydro-2′-deoxyguanosine Formation in DNA in the Presence of Light.

Published in:

Photochemistry & Photobiology, 1996, v. 63, n. 3, p. 272, doi. 10.1111/j.1751-1097.1996.tb03024.x

By:

Onuki, Janice;
Ribas, Adriana V.;
Medeiros, Marisa H. G.;
Araki, Koiti;
Toma, Henrique E.;
Catalani, Luiz H.;
Mascio, Paolo

Publication type:

Article

Doubly N-Confused Porphyrins as Efficient Sensitizers for Singlet Oxygen Generation.

Published in:

Chemistry Letters, 2003, v. 32, n. 3, p. 244, doi. 10.1246/cl.2003.244

By:

Araki, Koiti;
Engelmann, Fabio M.;
Mayer, Idemar;
Toma, Henrinque E.;
Baptista, Mauricio S.;
Maeda, Hiromitsu;
Osuka, Atsuhiro;
Furuta, Hiriyuki

Publication type:

Article

A reliable protocol for colorimetric determination of iron oxide nanoparticle uptake by cells.

Published in:

Analytical & Bioanalytical Chemistry, 2017, v. 409, n. 28, p. 6663, doi. 10.1007/s00216-017-0622-1

By:

Deda, Daiana;
Cardoso, Roberta;
Uchiyama, Mayara;
Pavani, Christiane;
Toma, Sergio;
Baptista, Mauricio;
Araki, Koiti

Publication type:

Article

Recent Progress in Core@Shell Sulfide Electrode Materials for Advanced Supercapacitor Devices.

Published in:

Batteries & Supercaps, 2021, v. 4, n. 9, p. 1397, doi. 10.1002/batt.202100017

By:

Gonçalves, Josué M.;
da Silva, Matheus I.;
Hasheminejad, Meisam;
Toma, Henrique E.;
Araki, Koiti;
Martins, Paulo R.;
Angnes, Lucio

Publication type:

Article

Sensing hazardous metal ions using a fluoroionophore calix[4]arene species containing two 8-oxyquinoline groups.

Published in:

Canadian Journal of Chemistry, 2011, v. 89, n. 5, p. 562, doi. 10.1139/v11-021

By:

Bagatin, Izilda A.;
Araki, Koiti;
Toma, Henrique E.

Publication type:

Article

Bridging Nanogap Electrodes by In Situ Electropolymerization of a Bis(terthiophenylphenanthroline)ruthenium Complex.

Published in:

Chemistry - A European Journal, 2004, v. 10, n. 13, p. 3331, doi. 10.1002/chem.200400063

By:

Koiti Araki;
Hiroaki Endo;
Gou Masuda;
Takuji Ogawa

Publication type:

Article

Screen‐printed Nickel‐Cerium Hydroxide Sensor for Acetaminophen Determination in Body Fluids.

Published in:

ChemElectroChem, 2021, v. 8, n. 13, p. 2505, doi. 10.1002/celc.202100417

By:

Azeredo, Nathália F. B.;
Gonçalves, Josué M.;
Lima, Irlan S.;
Araki, Koiti;
Wang, Joseph;
Angnes, Lúcio

Publication type:

Article

Mass Transport in Nanoporous Gold and Correlation with Surface Pores for EC1 Mechanism: Case of Ascorbic Acid.

Published in:

ChemElectroChem, 2021, v. 8, n. 11, p. 2129, doi. 10.1002/celc.202100440

By:

Kumar, Abhishek;
Gonçalves, Josue M.;
Furtado, Vinicius L.;
Araki, Koiti;
Angnes, Lucio;
Bouvet, Marcel;
Bertotti, Mauro;
Meunier‐Prest, Rita

Publication type:

Article

Cover Feature: Lamellar FeOcPc‐Ni/GO Composite‐Based Enzymeless Glucose Sensor (ChemElectroChem 12/2020).

Published in:

ChemElectroChem, 2020, v. 7, n. 12, p. 2494, doi. 10.1002/celc.202000645

By:

Safadi, Bill N.;
Gonçalves, Josué M.;
Castaldelli, Evandro;
Matias, Tiago A.;
Rossini, Pamela O.;
Nakamura, Marcelo;
Angnes, Lucio;
Araki, Koiti

Publication type:

Article

Lamellar FeOcPc‐Ni/GO Composite‐Based Enzymeless Glucose Sensor.

Published in:

ChemElectroChem, 2020, v. 7, n. 12, p. 2553, doi. 10.1002/celc.202000138

By:

Safadi, Bill N.;
Gonçalves, Josué M.;
Castaldelli, Evandro;
Matias, Tiago A.;
Rossini, Pamela O.;
Nakamura, Marcelo;
Angnes, Lucio;
Araki, Koiti

Publication type:

Article

Front Cover: Catalytic Water-Oxidation Activity of a Weakly Coupled Binuclear Ruthenium Polypyridyl Complex (Eur. J. Inorg. Chem. 04/2017).

Published in:

2017

By:

Matias, Tiago A.;
Mangoni, Ana P.;
Toma, Sergio H.;
Rein, Francisca N.;
Rocha, Reginaldo C.;
Toma, Henrique E.;
Araki, Koiti

Publication type:

Cover Art

Catalytic Water-Oxidation Activity of a Weakly Coupled Binuclear Ruthenium Polypyridyl Complex.

Published in:

2017

By:

Matias, Tiago A.;
Mangoni, Ana P.;
Toma, Sergio H.;
Rein, Francisca N.;
Rocha, Reginaldo C.;
Toma, Henrique E.;
Araki, Koiti

Publication type:

Image

Catalytic Water-Oxidation Activity of a Weakly Coupled Binuclear Ruthenium Polypyridyl Complex.

Published in:

European Journal of Inorganic Chemistry, 2016, v. 2016, n. 36, p. 5547, doi. 10.1002/ejic.201600889

By:

Matias, Tiago A.;
Mangoni, Ana P.;
Toma, Sergio H.;
Rein, Francisca N.;
Rocha, Reginaldo C.;
Toma, Henrique E.;
Araki, Koiti

Publication type:

Article

Ruthenium Acetate Cluster Amphiphiles and Their Langmuir-Blodgett Films for Electrochromic Switching Devices.

Published in:

European Journal of Inorganic Chemistry, 2014, v. 2014, n. 7, p. 1150, doi. 10.1002/ejic.201301442

By:

Naidek, Karine P.;
Hoffmeister, Denize M.;
Pazinato, Jaqueline;
Westphal, Eduard;
Gallardo, Hugo;
Nakamura, Marcelo;
Araki, Koiti;
Toma, Henrique E.;
Winnischofer, Herbert

Publication type:

Article

Cover Picture: Tuning Selectivity and Sensitivity of Mixed‐polymeric Tetraruthenated Metalloporphyrins Modified Electrodes as Voltammetric Sensors of Chloramphenicol (Electroanalysis 4/2019).

Published in:

Electroanalysis, 2019, v. 31, n. 4, p. 582, doi. 10.1002/elan.201980401

By:

Ferreira, Luís Marcos Cerdeira;
Martins, Paulo Roberto;
Araki, Koiti;
Angnes, Lúcio

Publication type:

Article

Tuning Selectivity and Sensitivity of Mixed‐polymeric Tetraruthenated Metalloporphyrins Modified Electrodes as Voltammetric Sensors of Chloramphenicol.

Published in:

Electroanalysis, 2019, v. 31, n. 4, p. 688, doi. 10.1002/elan.201800729

By:

Ferreira, Luís Marcos Cerdeira;
Martins, Paulo Roberto;
Araki, Koiti;
Angnes, Lúcio

Publication type:

Article

Amperometric Folic Acid Quantification Using a Supramolecular Tetraruthenated Nickel Porphyrin µ-Peroxo-Bridged Matrix Modified Electrode Associated to Batch Injection Analysis.

Published in:

Electroanalysis, 2015, v. 27, n. 10, p. 2322, doi. 10.1002/elan.201500251

By:

Ferreira, Luís M. C.;
Martins, Paulo R.;
Araki, Koiti;
Toma, Henrique H.;
Angnes, Lúcio

Publication type:

Article

Nanostructured Alpha-Nickel Hydroxide Electrodes for High Performance Hydrogen Peroxide Sensing.

Published in:

Electroanalysis, 2013, v. 25, n. 9, p. 2060, doi. 10.1002/elan.201300288

By:

Martins, Paulo Roberto;
Gonçalves Nery Motta, Alessandra;
Nakamura, Marcelo;
Araki, Koiti;
Angnes, Lúcio

Publication type:

Article

Superparamagnetic Carbon Electrodes: A Versatile Approach for Performing Magnetic Coupled Electrochemical Analysis of Mercury Ions.

Published in:

Electroanalysis, 2011, v. 23, n. 11, p. 2569, doi. 10.1002/elan.201100278

By:

Condomitti, Ulisses;
Zuin, Andre;
Silveira, Alceu T.;
Toma, Sergio H.;
Araki, Koiti;
Toma, Henrique E.

Publication type:

Article

Highly Sensitive Amperometric Glucose Sensors Based on Nanostructured α-Ni(OH)2 Electrodes.

Published in:

Electroanalysis, 2011, v. 23, n. 11, p. 2541, doi. 10.1002/elan.201100271

By:

Martins, Paulo Roberto;
Aparecida Rocha, Michele;
Angnes, Lúcio;
Eisi Toma, Henrique;
Araki, Koiti

Publication type:

Article

Nanoporous Gold‐Based Materials for Electrochemical Energy Storage and Conversion.

Published in:

Energy Technology, 2021, v. 9, n. 5, p. 1, doi. 10.1002/ente.202000927

By:

Gonçalves, Josué M.;
Kumar, Abhishek;
da Silva, Matheus I.;
Toma, Henrique E.;
Martins, Paulo R.;
Araki, Koiti;
Bertotti, Mauro;
Angnes, Lucio

Publication type:

Article

Enhancement of Stability and Specific Charge Capacity of Alpha‐Ni(OH)2 by Mn(II) Isomorphic Substitution.

Published in:

Energy Technology, 2019, v. 7, n. 5, p. N.PAG, doi. 10.1002/ente.201800980

By:

Gomes, Allan P.;
Gonçalves, Josué M.;
Araki, Koiti;
Martins, Paulo R.

Publication type:

Article

Beneficial effects of a mouthwash containing an antiviral phthalocyanine derivative on the length of hospital stay for COVID-19: randomised trial.

Published in:

Scientific Reports, 2021, v. 11, n. 1, p. 1, doi. 10.1038/s41598-021-99013-5

By:

da Silva Santos, Paulo Sérgio;
da Fonseca Orcina, Bernardo;
Machado, Rafael Rahal Guaragna;
Vilhena, Fabiano Vieira;
da Costa Alves, Lucas Marques;
Zangrando, Mariana Schutzer Ragghianti;
de Oliveira, Rodrigo Cardoso;
Soares, Mariana Quirino Silveira;
Simão, Andréa Name Colado;
Pietro, Emilene Cristine Izu Nakamura;
Kuroda, Juliana Pescinelli Garcia;
de Almeida Benjamim, Ivanilda Aparecida;
Araujo, Danielle Bastos;
Toma, Sérgio Hiroshi;
Flor, Lourival;
Araki, Koiti;
Durigon, Edison Luiz

Publication type:

Article

Role of poly(ε-caprolactone) lipid-core nanocapsules on melanoma-neutrophil crosstalk.

Published in:

International Journal of Nanomedicine, 2017, v. 12, p. 7153, doi. 10.2147/IJN.S140557

By:

Drewes, Carine C.;
de C. S. Alves, Aline;
Hebeda, Cristina B.;
Copetti, Isabela;
Sandri, Silvana;
Uchiyama, Mayara K.;
Araki, Koiti;
Guterres, Silvia S.;
Pohlmann, Adriana R.;
Farsky, Sandra H.

Publication type:

Article

Novel therapeutic mechanisms determine the effectiveness of lipid-core nanocapsules on melanoma models.

Published in:

International Journal of Nanomedicine, 2016, v. 11, p. 1261, doi. 10.2147/IJN.S101543

By:

Drewes, Carine C.;
Fiel, Luana A.;
Bexiga, Celina G.;
Asbahr, Ana Carolina C.;
Uchiyama, Mayara K.;
Cogliati, Bruno;
Araki, Koiti;
Guterres, Sílvia S.;
Pohlmann, Adriana R.;
Farsky, Sandra P.

Publication type:

Article

Ultrasmall cationic superparamagnetic iron oxide nanoparticles as nontoxic and efficient MRI contrast agent and magnetic-targeting tool.

Published in:

International Journal of Nanomedicine, 2015, v. 10, p. 4731, doi. 10.2147/IJN.S83150

By:

Uchiyama, Mayara Klimuk;
Toma, Sergio Hiroshi;
de Paula Rodrigues, Stephen Fernandes;
Shimada, Ana Lucia Borges;
Loiola, Rodrigo Azevedo;
Cervantes Rodríguez, Hernán Joel;
Oliveira, Pedro Vitoriano;
Luz, Maciel Santos;
Rabbani, Said Rahnamaye;
Toma, Henrique Eisi;
Poliselli Farsky, Sandra Helena;
Araki, Koiti

Publication type:

Article

Uric acid electrochemical sensing in biofluids based on Ni/Zn hydroxide nanocatalyst.

Published in:

Microchimica Acta, 2020, v. 187, n. 7, p. 1, doi. 10.1007/s00604-020-04351-2

By:

Azeredo, Nathália F. B.;
Gonçalves, Josué M.;
Rossini, Pamela O.;
Araki, Koiti;
Wang, Joseph;
Angnes, Lúcio

Publication type:

Article

Simultaneous determination of acetaminophen and tyrosine using a glassy carbon electrode modified with a tetraruthenated cobalt(II) porphyrin intercalated into a smectite clay.

Published in:

Microchimica Acta, 2016, v. 183, n. 12, p. 3243, doi. 10.1007/s00604-016-1985-2

By:

Kemmegne-Mbouguen, Justin;
Toma, Henrique;
Araki, Koiti;
Constantino, Vera;
Ngameni, Emmanuel;
Angnes, Lúcio

Publication type:

Article

Decorated Superparamagnetic Iron Oxide Nanoparticles with Monoclonal Antibody and Diethylene-Triamine-Pentaacetic Acid Labeled with Thechnetium-99m and Galium-68 for Breast Cancer Imaging.

Published in:

Pharmaceutical Research, 2018, v. 35, n. 1, p. N.PAG, doi. 10.1007/s11095-017-2320-2

By:

de Souza Albernaz, Marta;
Toma, Sergio Hiroshi;
Clanton, Jeff;
Araki, Koiti;
Santos-Oliveira, Ralph

Publication type:

Article

Plasmonic Interaction of Gold Nanoparticles with the Anti-hypoglycemic Medicament Metformin.

Published in:

Plasmonics, 2025, v. 20, n. 2, p. 793, doi. 10.1007/s11468-024-02341-1

By:

Hennemann, Artur L.;
Ramos Jr, Miguel D.;
Sihn, Luca M.;
Nakamura, Marcelo;
Araki, Koiti;
Toma, Henrique E.

Publication type:

Article

Resonance Raman Spectra of a Supramolecular Species Containing Four Ruthenium(II)-Bipyridine Complexes Attached to Zinc-Tetrapyridyl Porphynate.

Published in:

Spectroscopy Letters, 1995, v. 28, n. 1, p. 119, doi. 10.1080/00387019508011660

By:

Araki, Koiti;
Santos, Paulo S.;
de Oliveira, Luiz F. C.;
Toma, Henrique E.

Publication type:

Article

Electronic and Resonance Raman Spectra of a Multibridged Iron Porphyrin.

Published in:

Spectroscopy Letters, 1993, v. 26, n. 8, p. 1417, doi. 10.1080/00387019308011619

By:

Araki, Koiti;
Santos, Paulo S.;
Toma, Henrique E.

Publication type:

Article