USP
Universidade de São Paulo

Koiti Araki

Professor Titular - Departamento de Química Fundamental
Laboratório de Química Supramolecular e Nanotecnologia
3091-8513 
 koiaraki@iq.usp.br

iNova-IQ

Atua na área de nanotecnologia, particularmente na funcionalização e compatibilização de nanopartículas metálicas (ouro e prata) e de óxidos/hidróxidos de metais de transição (ferro, níquel/cobalto e titânio) visando o desenvolvimento de processos de fabricação de nanomateriais e suas aplicações tecnológicas. Seus interesses incluem a química supramolecular coordenativa bem como a preparação e caracterização de nanomateriais híbridos, nanobiomateriais e nanocompósitos com potencial aplicação nas área de energia (petróleo, baterias/pseudo-supercapacitores e células solares), nanomedicina (nanoagentes de contraste e tratamento, teranóstica) e meio ambiente (tratamento e remediação de águas), visando o desenvimento & transferência de tecnologia e inovação. É coordenador do SisNANO-USP, SIBRATEC-USP Nanomateriais e Nanocompósitos e SIBRATEC-USP Nanosensores e Nanodispositivos, além de convênios com empresas e outras IES.

English version: His interest is in the area of nanotechnology, especially the functionalization of metal (gold and silver) and transition metal oxides/hydroxides nanoparticles (iron, nickel, cobalt and titanium). Is involved in the preparation of functional hybrid nanomaterials, nanobiomaterials and nanocomposites, based on coordinative supramolecular chemistry approach, envisaging their potential application in the areas of energy (oil&gas, batteries/pseudo-supercapacitors and catalysts), nanomedicine (contrast and treatment nanoagents, theranostics) and treatment of water. Is the coordinator of “SisNANO-USP: Nanotechnologies for Health, Environment & Energy” a researchers’ network aiming the development of innovative technological projects in partnership with companies.

 

CV Sistema Lattes - CNPq        CV Google Acadêmico       CV Researcher ID       CV Scopus

 

Química Supramolecular Coordenativa e Tecnologia de Nanopartículas

Coordinative Supramolecular Chemistry and Nanoparticles Technology

  Pesquisadores do Grupo Alunos do Grupo  

 

Sérgio H Toma  

Helton P Nogueira 

Mayara K Uchiyama 

Daiana KD Nogueira 

Robson R Guimaraes 

Evandro Castaldelli 

Jonnatan J Santos 

Josué M Gonçalves

Roberta M Cardoso 

Kalil CF Toledo

Rafael B Trinca

Marcos M Toyam

 

Rodrigo K Kawassaki (DR) 

Mariana Romano (DR)

Bill N Safadi (DR)

Geovanne L Assis (DR)

Natasha Dietrich (DR)

Gustavo Levendoski Sabino (DR)

Artur Luis Hennemann (DR)

Khallil Taverna Chaim (co-DR)

Italo R Machado (MS)

Rafaela Bechara (MS)

Roberta O Motta (MS-Profissional)

Ellen Maria da Silva (IC)   

 

 

 

Publications in Hybrid NanoBioMaterials

  1. Daiana K Deda, Roberta M Cardoso, Rodrigo K Kawassaki, Andre R de Oliveira, Sergio H Toma, Mauricio S Baptista e Koiti Araki, “Glycerol phosphate conjugated superparamagnetic iron oxide nanoparticles as nanocarriers for methotrexate”, J Nanosci Nanotechn, 21, 3 (2021) 1451-1461. https://doi.org/10.1166/jnn.2021.19027
  2. Ullah Khan, Zahid; Uchiyama, Mayara; Khan, Latif; Ramos-Sanchez, Eduardo;  Reis, Luiza;  Nakamura, Marcelo; Goto, Hiro;  Souza, Ana; Araki, Koiti; Brito, Hermi; Gidlund, Magnus, “Orange-Emitting ZnSe:Mn2+ Quantum Dots as  Nanoprobes for Macrophages”, ACS Applied Nano Materials 3, 10 (2020)10399-10410.  https://doi.org/10.1021/acsanm.0c02242
  3. Mariana Romano, Mayara K. Uchiyama, Roberta M. Cardoso, Sergio H. Toma, Mauricio S. Baptista and Koiti Araki, “Nitric oxide inhibition of lypopolysaccharide-stimulated RAW 247.6 cells by ibuprofen-conjugated iron oxide nanoparticles”,  Future Nanomedicine 15 (2020) 2475-2492.  https://doi.org/10.2217/nnm-2020-0214
  4. Matheus de Castro Leão, Adriana R Pohlmann, Aline de Cristo Soares Alves, Sandra HP Farsky, Silvana Sandri, Silvia S Guterres, Mayara K Uchiyama, Koiti Araki, Inar Castro, “Docosahexaenoic acid nanoencapsulated with anti-PECAM-1 as co-therapy for atherosclerosis regression”, Eur. J. Pharmaceutics and Biopharmaceutics 159(2021)99-107. doi: 10.1016/j.ejpb.2020.12.016
  5. Thiago Tasso; Jan Schlothauer; Helena Junqueira; Tiago A Matias; Koiti Araki; Erica Liandra-Salvador; Felipe Antonio; Paula Mello; Maurício Baptista; “Photobleaching efficiency parallels the enhancement of membrane damage for porphyrazine photosensitizers”, JACS 141, 39 (2019)15547-15556. https://doi.org/10.1021/jacs.9b05991
  6. Marta de Souza Albernaz, Sergio Hiroshi Toma, Jeff Clanton, Emerson Soares Bernardes, Koiti Araki*, Ralph Santos-Oliveira*, “Decorated superparamagnetic iron oxide nanoparticles with monoclonal antibody and diethylene-triamine-pentaacetic acid labeled with technetium-99m and galium-68 for breast cancer imaging”, Pharmaceutical Research 35(2018)24. doi: 10.1007/s11095-017-2320-2
  7. Daiana K Deda, Roberta M Cardoso, Mayara K Uchiyama, Christiane Pavani, Sergio H Toma, Mauricio S Baptista, Koiti Araki, “A reliable protocol for colorimetric determination of iron oxide nanoparticle uptake by cells”,  Anal. Bioanal. Chem. 409 (2017) 6663-6675. doi: 10.1007/s00216-017-0622-1
  8. Roberta Mansini Cardoso, Daiana Kotra Deda, Sergio Hiroshi Toma, Mauricio Baptista, Koiti Araki, “Beyond Electrostatic Interactions: Ligand Shell Modulated Uptake of Bis-Conjugated Iron Oxide Nanoparticles by Cells”, Colloids and Surfaces B: Biointerfaces 186 (2020) 110717. https://doi.org/10.1016/j.colsurfb.2019.110717
  9. Mayara K. Uchiyama, Sergio H. Toma, Stephen Fernandes P. Rodrigues, Ana Lúcia B. Shimada, Rodrigo A. Loiola, Hernan J.C. Rodriguez, Pedro V. Oliveira, Maciel S. Luz, Said R. Rabbani, Henrique E. Toma, Sandra H.P. Farsky e Koiti Araki, “Ultrasmall cationic superparamagnetic iron oxide nanoparticles as non-toxic and efficient MRI contrast agent and magnetic-targeting tool”, International Journal of Nanomedicine 10 (2015) 4731-4746. doi: 10.2147/IJN.S83150 
  10. Mayara K. Uchiyama, Daiana K. Deda, Simone M. Bolonheis, Stephen F. Rodrigues, Pedro K. Kiyohara, Simone P. de Toledo, Walter Colli, Sandra H. P. Farsky, Koiti Araki, "In vivo and in vitro toxicity and anti-inflamatory properties of gold nanoparticle bioconjugates to the vascular system", Toxicological Sciences 142, 2(2014) 497-507. doi: 10.1093/toxsci/kfu202 
  11. Daiana K. Deda, Christiane Pavani, Eduardo Caritá, Maurício S. Baptista, Henrique E. Toma and Koiti Araki, “Control of Cytolocalization and Mechanism of Death by Encapsulation of a Photosensitizer”, J. Biomed. Nanotech. 9 (2013) 1307-1317.  doi: 10.1166/jbn.2013.1614

 

Publications in Hybrid and Composite Nanomaterials

  1. Luis Fernando Peffi Ferreira, Thayna Mazzi de Oliveira, Sergio H Toma, Marcos M Toyama, Koiti Araki, Luis Humberto Avanzi, “Superparamagnetic Iron Oxide Nanoparticles (SPIONs) conjugated with Lipase Candida Antarctica A for Biodiesel Synthesis”, RSC Advances 10(2020)38490-38496. https://doi.org/10.1039/D0RA06215D
  2. Josue M. Goncalves, Paulo R. Martins, Koiti Araki,Lucio Angnes, “Recent progress in water splitting and hybrid supercapacitors based on Nickel-Vanadium Layered Double Hydroxides”, J. Energy Chem. 57(2021)496-515 https://doi.org/10.1016/j.jechem.2020.08.047
  3. Daniel Garcia-Osorio, Pilar Hidalgo-Falla, Henrique M. Peres, Josue M. Gonçalves, Koiti Araki, Sergi Garcia-Segura and Gino Picasso-Escobar, “Silver enhances hematite nanoparticles based ethanol sensor response and selectivity at room temperature”, Sensors 21(2021)440. https://doi.org/10.3390/s21020440
  4. Josue M. Goncalves, Matheus I. da Silva, Henrique E. Toma, Lucio Angnes, Paulo R. Martins, Koiti Araki; “Trimetallic Oxides/Hydroxides as Hybrid Supercapacitors Electrode Materials: A Review”, Journal of Materials Chemistry A 8 (2020) 10534. https://doi.org/10.1039/D0TA02939D
  5. Bill N. Safadi, Josué M. Gonçalves, Evandro Castaldelli, Tiago A. Matias, Pamela O. Rossini, Marcelo Nakamura, Lucio Angnes and Koiti Araki, “Lamellar FeOcPc-Ni/GO Composite Based EnzymelessGlucose Sensor”, ChemElectroChem 7 (6) (2020) 2553-2563.  https://doi.org/10.1002/celc.202000138
  6. Josué M. Goncalves, Paulo R. Martins, Lucio Angnes and Koiti Araki, “Recent advances in ternary layered double hydroxide electrocatalysts for the oxygen evolution reaction”, New J Chemistry https://doi.org/10.1039/D0NJ00021C
  7. Josue M Gonçalves, Matheus Ireno da Silva, Lucio Angnes and Koiti Araki, “Vanadium-containing electro and photocatalysis for oxygen evolution reaction: a review”, Journal of Materials Chemistry A 8 (2020) 2171-2206. https://doi.org/10.1039/C9TA10857B
  8. Josué M. Gonçalves, Tiago A. Matias, Kalil C.F. Toledo, Koiti Araki, “Electrocatalytic Materials Design for Oxygen Evolution Reaction”, Advances in Inorganic Chemistry Vol. 74 on Water Oxidation Catalysts, Rudi van Eldik and Collin Hubbard (eds), 2019, 241-304, ISBN: 978-0-12-816082-4, Academic Press, Cambridge, MA, USA. doi.org/10.1016/bs.adioch.2019.03.002
  9. Robson R. Guimaraes, Josue M Gonçalves, Olle Björneholm, Carlos Moyses G Araujo, Arnaldo N Brito, Koiti Araki, “Single-Atom Electrocatalysts for Water Splitting”, in “Methods for Electrocatalysis: Advanced Materials and Allied Applications”, Inamuddin, Rajender Boddula and Abdullah M. Asiri (eds.), Springer International Publishing, pp 67-111, 2020, ISBN 978-3-030-27160-2. doi: 10.1007/978-3-030-27161-9_3
  10. Helton P. Nogueira, Sergio H. Toma, Alceu T. Silveira, Alexandrina A.C. Carvalho, Alexandre M. Fiorotto and Koiti Araki, “Efficient Cr(VI) Removal from WasteWater by Activated Carbon Superparamagnetic Nanocomposites”, Microchemical Journal   149(2019)104025. doi: 10.1016/j.microc.2019.104025
  11. Josué M. Gonçalves, Tiago A. Matias, Kalil C.F. Toledo, Koiti Araki, “Electrocatalytic Materials Design for Oxygen Evolution Reaction”, Advances in Inorganic Chemistry Vol. 74 on Water Oxidation Catalysts, Rudi van Eldik and Collin Hubbard (eds), 2019, 241-304, ISBN: 978-0-12-816082-4, Academic Press, Cambridge, MA, USA. doi.org/10.1016/bs.adioch.2019.03.002
  12. Josue M Gonçalves, Tiago A Matias, Lucas, PH Saravia, Marcelo Nakamura, Mauro Bertotti e Koiti Araki, “Synergic effects enhance the catalytic properties of α-Ni(OH)2-FeOCPc@rGO composite for oxygen evolution reaction”, Electrochim. Acta.267 (2018) 161-169. doi: 10.1016/j.electacta.2018.02.080 
  13. Robson R. Guimaraes, André L.A. Parussulo, Tiago A. Matias, Henrique E. Toma, Koiti Araki, “Electrostatic blocking barrier as an effective strategy to inhibit electron recombination in DSSCs”, Electrochim. Acta 255 (2017) 92-98. doi: 10.1016/j.electacta.2017.09.096

 

 Publications in Supramolecular Chemistry

  1. Jose Luis Silva, Isaak Unger, Tiago Araujo Matias, Leandro Rezende Franco, Giane Damas, Luciano T Costa, Kalil C F Toledo, Tulio C R Rocha, Arnaldo Naves de Brito, Clara-Magdalena Saak, Kaline Coutinho, Koiti Araki, Olle Björneholm, Barbara Brena, C. Moyses Araujo; “Photoelectron Fingerprints of Aqueous Ru-complexes Along the Oxidation Reaction Pathway: Towards in Operando Spectroscopy of Catalytic Water Splitting”, J. Phys. Chem. Lett. 10 (2019) 7636-7643. https://doi.org/10.1021/acs.jpclett.9b02756
  2. Tiago A Matias, Andre LA Parussulo, Paola A Benavides, Robson R Guimaraes, Andre Dourado, Marcelo Nakamura, Susana IC Torresi, Mauro Bertotti, Koiti Araki, "Polymeric binuclear ruthenium complex as efficient electrocatalyst for oxygen evolution reaction", Electrochim. Acta 283 (2018) 18-26. doi: 10.1016/j.electacta.2018.06.138
  3. Jonnatan J Santos, Sergio H Toma, Paola Corio, Koiti Araki, “Key role of surface concentration on reproducibility and optimization of SERS sensitivity”, J. Raman Spectrosc. 48 (2017) 1190-1195. doi: 10.1002/jrs.5203
  4. Tiago A. Matias, Francisca N. Rein, Reginaldo C. Rocha, André L.B. Formiga, Henrique E. Toma, Koiti Araki, “Effect of a strong π-accepting ancillary ligand on the oxygen evolution activity of weakly coupled binuclear ruthenium catalysts”, J. Chem. Soc. Dalton Transaction, 48 (2019) 3009-3017. doi: 10.1039/C8DT04963G
  5. Jonnatan J Santos, Sergio H Toma, Natalia Monezi, Romulo Ando, Paola Corio and Koiti Araki, “Selecting the Mechanism of Surface-Enhanced Raman Scattering Effect using Shell Isolated Nanoparticles and an Oxo-Triruthenium Acetate Cluster Complex”, Inorg. Chem. 58 (2019)10399-10407. doi: 10.1021/acs.inorgchem.9b01618