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Hire Dr. Hellio B.

Brazil

USD 150 /hr

Producer and strategic communicator of scientific content. Chemistry. Scientist. PostDoc Researcher.

Profile Summary

Skills and expertise: Phosphate, Soil Chemistry, Spectroscopy, Inorganic Chemistry, Materials Chemistry, Luminescent Materials, Optical Materials, Spectral Analysis, Material Characterization, Upconversion, Rare Earths, Thermal Analysis, XANES, Thermogravimetric Analysis, Differential Thermal Analysis, Powder Diffraction X-Ray, Spectroscopy Inorganic Chemistry, Solid State Physics.

Subject Matter Expertise

• ★ Nanotechnology & Nanomaterials
• ☆ Inorganic Chemistry
• ☆ Agricultural Chemistry
• ☆ Composite Materials
• ☆ Condensed Matter Physics
• ☆ Green Chemistry
• ☆ Agricultural Technology
• ☆ Agronomy & Crop Science
• ☆ Soil Science
• ☆ Lasers & Photonics
• ☆ Photomedicine/Phototherapy
• ☆ Research
• ☆ Research Methodology
• ☆ Science Communication

Services

• Writing
• Research
• Consulting
• Data & AI
• Product Development

Writing Clinical Trial Documentation, Technical Writing, Copywriting, Newswriting

Research Market Research, User Research, Meta-Research, Feasibility Study, Fact Checking, Gap Analysis, Gray Literature Search, Scientific and Technical Research, Systematic Literature Review, Secondary Data Collection

Consulting Digital Strategy Consulting, Scientific and Technical Consulting

Data & AI Predictive Modeling, Statistical Analysis, Algorithm Design-Non ML, Data Visualization, Big Data Analytics, Data Processing, Data Insights

Product Development Formulation, Product Evaluation, Prototyping

Work Experience

Postdoctoral researcher

Brazilian Agricultural Research Corporation

May 2024 - Present

Postdoc/Research fellowship

Brazilian Agricultural Research Corporation (Embrapa)

April 2024 - Present

Postdoctroral Researcher

University of Ottawa

October 2022 - April 2024

Postdoctoral Fellow

University of Ottawa

October 2022 - March 2024

Assistant Professor

Instituto Federal de Educação Ciência e Tecnologia Goiano - Campus Rio Verde

July 2021 - November 2021

Scientific research and editing

PreScouter - Chicago, Illinois

October 2020 - July 2021

Education

PhD (Quimica Fundamental)

Universidade de São Paulo

July 2013 - October 2018

Certifications

• Mendeley

  Mendeley

  October 2014 - Present

Publications

JOURNAL ARTICLE

Thaís Karine de Lima Rezende, Jordy Carneiro, Helliomar Pereira Barbosa, Mauro Roberto Sardela Junior, Jefferson Ferrari (2025). Recent advances in rare earth oxides applied to energy conversion: A short review . Ceramics International.

Carlos Jacinto, Wagner Ferreira da Silva, Joel Garcia, Gelo P. Zaragosa, Carlo Nonato D. Ilem, Tasso O. Sales, Harrisson D. A. Santos, Blessed Isaac C. Conde, Helliomar Pereira Barbosa, Sonia Malik, et al. (2025). Nanoparticles based image-guided thermal therapy and temperature feedback . Journal of Materials Chemistry B.

Hudson A. Bicalho, Christopher Copeman, Helliomar P. Barbosa, P. Rafael Donnarumma, Zoey Davis, Victor Quezada‐Novoa, Jose de J. Velazquez‐Garcia, Nan Liu, Eva Hemmer, Ashlee J. Howarth (2024). Synthesis, Characterization and Photophysical Properties of a New Family of Rare‐Earth Cluster‐Based Metal‐Organic Frameworks . Chemistry – A European Journal.

Hudson A. Bicalho, Christopher Copeman, Helliomar P. Barbosa, P. Rafael Donnarumma, Zoey Davis, Victor Quezada‐Novoa, Jose de J. Velazquez‐Garcia, Nan Liu, Eva Hemmer, Ashlee J. Howarth (2024). Front Cover: Synthesis, Characterization and Photophysical Properties of a New Family of Rare‐Earth Cluster‐Based Metal‐Organic Frameworks (Chem. Eur. J. 60/2024) . Chemistry – A European Journal.

Rafael V. Perrella, Mengistie L. Debasu, Thaís K. L. Rezende, Jordy A. Carneiro, Helliomar P. Barbosa, Rute A. S. Ferreirab, Luís D. Carlos, Jefferson Ferrari (2023). Temperature sensing based on upconversion properties of Yb3+/Ho3+/Tm3+ tri-doped Y2O3 micro particles phosphors obtained by conventional precipitation method . Materials Science and Engineering: B.

José Henrique Faleiro, Noelio O. Dantas, Anielle C.A. Silva, Helliomar P. Barbosa, Bruno H.S.T. da Silva, Karmel de O. Lima, Guilherme de Freitas Silva, Rogéria Rocha Gonçalves, Rodrigo Falci, Younès Messadeq, et al. (2023). Niobium incorporation into rare-earth doped aluminophosphate glasses: Structural characterization, optical properties, and luminescence . Journal of Non-Crystalline Solids.

Helliomar Barbosa, Renan P. Moreira, Leonardo H.C. Francisco, Israel F. Costa, Helliomar P. Barbosa, Ercules E.S. Teotonio, Maria C.F.C. Felinto, Oscar L. Malta, Hermi F. Brito(2023). Luminescence properties of BaMO4:Eu3+ (M: Mo or W) phosphors derived from co-precipitation reaction . Journal of Alloys and Compounds. 937. p. 168408. Elsevier {BV}

Luana da Silva Oliveira, Eduarda, Felipe Cabral Borges Martins, Guilherme de Freitas Silva, Thaís Karine de Lima Rezende, José Carlos Silva Filho, Helliomar Pereira Barbosa, Acácio Aparecido Andrade, Luiz F.C. de Oliveira, Marcio Sousa Góes, et al.(2022). Emission of TiO2:Y3+ and Eu3+ in water medium, under UV excitation and band gap theoretical calculus . Journal of Luminescence. p. 119639. Elsevier {BV}

Tha{\'{\i}}s Karine de Lima Rezende and Helliomar Pereira Barbosa and Karmel de Oliveira Lima and M{\'{a}}rcio Sousa G{\'{o}}es and Renata Cristina de Lima and Rog{\'{e}}ria Rocha Gon{\c{c}}alves and Jefferson Luis Ferrari(2021). Simultaneous excitation at IR and UV of RE3+ triply doped SiO2-Gd2O3 materials for energy conversion purposes . Ceramics International. 47. (24). p. 35187--35200. Elsevier {BV}

F.C.B. Martins and E. Firmino and L.S. Oliveira and N.O. Dantas and A.C. Almeida Silva and H.P. Barbosa and T.K.L. Rezende and M.S. G{\'{o}}es and M.A. Coutos dos Santos and L.F. Cappa de Oliveira and J.L. Ferrari(2021). Development of Y2O3:Eu3+ materials doped with variable Gd3+ content and characterization of their photoluminescence properties under UV excitation . Materials Chemistry and Physics. p. 125498. Elsevier {BV}

Jos{\'{e}} Henrique Faleiro and Noelio O. Dantas and Anielle C.A. Silva and Helliomar P. Barbosa and Bruno H.S.T. da Silva and Karmel de O. Lima and Rog{\'{e}}ria Rocha Gon{\c{c}}alves and Jefferson Luis Ferrari(2021). Niobium oxide influence in the phosphate glasses triply doped with Er3+/Yb3+/Eu3+ prepared by the melting process . Journal of Non-Crystalline Solids. 571. p. 121051. Elsevier {BV}

Tha{\'{\i}}s Karine de Lima Rezende and Helliomar Pereira Barbosa and Karmel de Oliveira Lima and M{\'{a}}rcio Sousa G{\'{o}}es and Renata Cristina de Lima and Rog{\'{e}}ria Rocha Gon{\c{c}}alves and Jefferson Luis Ferrari(2021). Simultaneous excitation at IR and UV of RE3+ triply doped SiO2-Gd2O3 materials for energy conversion purposes . Ceramics International. Elsevier {BV}

Luiz G.A. de Carvalho, Luiz G.L. Guimarães, Ellen Raphael, Marco A. Schiavon, Bruno H.S. Torquato da Silva, Daniela P. dos Santos, Jordy A. Carneiro, José Henrique Faleiro, Helliomar P. Barbosa, Jefferson L. Ferrari(2021). Facile synthesis of chitosan membrane containing Eu3+ complex with intense emission in the red region . Journal of Materials Research and Technology. 12. p. 2247--2256. Elsevier {BV}

Eduarda Firmino and Luana da Silva Oliveira and Felipe Cabral Borges Martins and Jos{\'{e}} Carlos S. Filho and Helliomar Pereira Barbosa and Ac{\'{a}}cio A. Andrade and Tha{\'{\i}}s Karine de Lima Rezende and Renata C. de Lima and Marco A. Couto dos Santos and M{\'{a}}rcio Sousa G{\'{o}}es and Jefferson Luis Ferrari(2021). Eu3+-doped SiO2–Y2O3 containing Sr2+ for application as fingerprinting detector . Optical Materials. 114. p. 111018. Elsevier {BV}

(2020). Photoluminescence properties of the material based on SiO2–Y2O3:Eu3+,Tb3+ under different in situ temperature prepared by the sol-gel process . Journal of Luminescence.

(2020). Dipole-dipole energy transfer mechanism to the blue-white-red color-tunable emission presented by CaYAlO4:Tb3+,Eu3+ biocompatibility material obtained by the simple and low cost of chemical route . Materials Chemistry and Physics.

(2020). Downconversion and upconversion observed from Er3+/Yb3+/Eu3+ tri-doped-Y2O3 for application in energy conversion . Journal of Alloys and Compounds.

(2020). Blue-Emitting MWO4:Tm3+ (M: Sr, Ba) Phosphors Prepared by Coprecipitation Method at Room Temperature . Journal of the Brazilian Chemical Society.

(2017). Photoluminescence of single-phased white light emission materials based on simultaneous Tb3+, Eu3+ and Dy3+ doping in CaWO4 matrix . Journal of Alloys and Compounds.

(2016). Luminescence investigation of R 3+ -doped alkaline earth tungstates prepared by a soft chemistry method . Journal of Luminescence.

BOOK CHAPTER

Homann C, Liu N, Barbosa H, Hemmer E. Impact of synthesis routes on the optical performance of upconverting and near-infrared emitting lanthanide-doped nanoparticles .

Helliomar Barbosa, Everton Bonturim, Leonnam Gotardo Merizio, Ian Pompermayer Machado, Cassio Cardoso Santos Pedroso, Hermi Felinto de Brito(2023). Nanocontrol of excitation and emission mechanism . Modern Luminescence from Fundamental Concepts to Materials and Applications. 1. p. 219-273.

Guilherme de Freitas Silva, Guilherme de Lima Fernandes, José Henrique Faleiro, Thaís Karine de Lima Rezende, Helliomar Pereira Barbosa, Jefferson Luis Ferrari (2023). Biosensing Based on Upconversion Nanoparticles . Progress in Optical Science and Photonics.

Helliomar Pereira Barbosa and Diele Aparecida Gouveia Ara{\'{u}}jo and Lauro Antonio Pradela-Filho and Regina Massako Takeuchi and Renata Galv{\~{a}}o de Lima and Jefferson Luis Ferrari and M{\'{a}}rcio Sousa G{\'{o}}es and Andr{\'{e}} Luiz dos Santos(2021). Zinc Oxide as a Multifunctional Material: From Biomedical Applications to Energy Conversion and Electrochemical Sensing . Metal and Metal Oxides for Energy and Electronics. p. 251--305. Springer International Publishing

(2020). Materials for Solar Cell Applications: An Overview of TiO2, ZnO, Upconverting Organic and Polymer-Based Solar Cells . Solar Cells.

Navadeep Shrivastava and Helliomar Barbosa and Khuram Ali and S. K. Sharma(2020). Materials for Solar Cell Applications: An Overview of TiO2, ZnO, Upconverting Organic and Polymer-Based Solar Cells . Solar Cells. p. 55--78. Springer International Publishing

REVIEW

Helliomar Barbosa, Thaís K. L. Rezende, Helliomar P. Barbosa, Luiz F. dos Santos, Karmel de O. Lima, Patrícia Alves de Matos, Tayana M. Tsubone, Rogéria R. Gonçalves, Jefferson L. Ferrari(2022). Upconversion rare Earths nanomaterials applied to photodynamic therapy and bioimaging . Frontiers in Chemistry. 10. Frontiers Media {SA}