All Stories

  1. Carbon nanomaterials for electrochemical sensors of drugs and clinical compounds

    Article • Reviews in Analytical Chemistry, September 2019, De Gruyter

    Professor Keyller Bastos Borges, Arnaldo Pereira

  2. Double-imprinted polymer based on cross-linked poly(vinylimidazole–trimethylolpropane trimethacrylate) in solid phase extraction for determination of lead from wastewater samples by UV–vis spectrophotometry

    Article • International Journal of Environmental & Analytical Chemistry, May 2019, Taylor & Francis

    Professor Keyller Bastos Borges

  3. A Simple and Rapid HPLC Method for the Multidetermination of Enrofloxacin, Ciprofloxacin, and Oxytetracyclin in Raw Materials and Veterinary Pharmaceutical Formulations

    Article • Current Pharmaceutical Analysis, May 2018, Bentham Science Publishers

    Professor Keyller Bastos Borges, Carolina Moraes

  4. C15049. Taraxerol 4-Methoxybenzoate, an in vitro Inhibitor of Photosynthesis Isolated from Pavonia multiflora A. St - Hil . (Malvaceae)

    Article • Chemistry & Biodiversity, February 2016, Wiley

    Professor Keyller Bastos Borges

  5. Development and application of graphite-SiO2/Al2O3/Nb2O5-methylene blue (GRP-SiAlNb-MB) composite for electrochemical determination of dopamine

    Article • Arabian Journal of Chemistry, March 2015, Elsevier

    Professor Keyller Bastos Borges

  6. Self-assembly pipette tip-based cigarette filters for micro-solid phase extraction of ketoconazole cis-enantiomers in urine samples followed by high-performance liquid chromatography/diode array detection

    Article • Analytical Methods, January 2015, Royal Society of Chemistry

    Professor Keyller Bastos Borges

  7. Estudo eletroquímico do processo de eletrooxidação da prometazina empregando sensor a base de pasta de nanotubos de carbono contendo DNA imobilizado em matriz inorgânica

    Article • Semina Ciências Exatas e Tecnológicas, October 2014, Universidade Estadual de Londrina

    Professor Keyller Bastos Borges

  8. Simultaneous determination of organophosphorous insecticides in bean samples by gas chromatography - flame photometric detection

    Article • Acta Scientiarum Technology, February 2014, Universidade Estadual de Maringa

    Professor Keyller Bastos Borges

  9. Molecular modeling study of the recognition mechanism and enantioseparation of 4-hydroxypropranolol by capillary electrophoresis using carboxymethyl-β-cyclodextrin as the chiral selector

    Article • The Analyst, January 2014, Royal Society of Chemistry

    Professor Keyller Bastos Borges

  10. Development and application of an electrochemical biosensor based on carbon paste and silica modified with niobium oxide, alumina and DNA (SiO2/Al2O3/Nb2O5/DNA) for amitriptyline determination

    Article • Journal of Electroanalytical Chemistry, September 2013, Elsevier

    Professor Keyller Bastos Borges

  11. Development of a square wave voltammetric method for dopamine determination using a biosensor based on multiwall carbon nanotubes paste and crude extract of Cucurbita pepo L.

    Article • Sensors and Actuators B Chemical, August 2013, Elsevier

    Professor Keyller Bastos Borges

  12. Monitoring of ractopamine concentration in the mixture of this feed additive with vitamin mineral complex and with swine feed by HPLC

    Article • Food Additives & Contaminants Part A, May 2013, Taylor & Francis

    Professor Keyller Bastos Borges

  13. Development of a simple, rapid and validated square wave voltametric method for determination of promethazine in raw material and pharmaceutical formulation using DNA modified multiwall carbon nanotube paste electrode

    Article • Sensors and Actuators B Chemical, February 2013, Elsevier

    Professor Keyller Bastos Borges

  14. A novel 2-(2-methyl-2-nitrovinyl)-furan ectoparasitic drug: physicochemical characterization and determination of the raw material by gas chromatography mass spectrometry

    Article • Open Chemistry, January 2013, De Gruyter

    Professor Keyller Bastos Borges

  15. A Shared Biosynthetic Pathway for Botcinins and Botrylactones Revealed through Gene Deletions

    Article • ChemBioChem, November 2012, Wiley

    Professor Keyller Bastos Borges

  16. Assessment of the stereoselective fungal biotransformation of albendazole and its analysis by HPLC in polar organic mode

    Article • Journal of Pharmaceutical and Biomedical Analysis, March 2012, Elsevier

    Professor Keyller Bastos Borges

  17. Stability-indicating methods for the enantioselective determination of dihydropyridines by high performance liquid chromatography and capillary electrophoresis

    Article • Analytical Methods, January 2012, Royal Society of Chemistry

    Professor Keyller Bastos Borges

  18. Sensitive method for determination of piplartine, an alkaloid amide from Piper species, in rat plasma samples by liquid chromatography-tandem mass spectrometry

    Article • Química Nova, January 2012, FapUNIFESP (SciELO)

    Professor Keyller Bastos Borges

  19. Determination of Diazepam and Nordiazepam in the Plasma of Psychiatric Patients in Long-Term Treatment Employing Liquid-Liquid and Solid Phase Extraction by Gas Chromatography with Electron Capture Detection

    Article • Analytical Letters, December 2011, Taylor & Francis

    Professor Keyller Bastos Borges

  20. Capillary electrophoresis method for the determination of isradipine enantiomers: Stability studies and pharmaceutical formulation analysis

    Article • Electrophoresis, October 2011, Wiley

    Professor Keyller Bastos Borges

  21. Capillary electrophoresis and hollow fiber liquid-phase microextraction for the enantioselective determination of albendazole sulfoxide after biotransformation of albendazole by an endophytic fungus

    Article • Electrophoresis, September 2011, Wiley

    Professor Keyller Bastos Borges

  22. Enantioselective fungal biotransformation of risperidone in liquid culture medium by capillary electrophoresis and hollow fiber liquid-phase microextraction

    Article • Electrophoresis, September 2011, Wiley

    Professor Keyller Bastos Borges

  23. Capillary electrophoresis method for plasmatic determination of imatinib mesylate in chronic myeloid leukemia patients

    Article • Electrophoresis, June 2011, Wiley

    Professor Keyller Bastos Borges

  24. Fast HPLC analysis of omeprazole, 5-hydroxyomeprazole and omeprazole sulfone in liquid culture medium using a monolithic column for application in biotransformation studies with fungi

    Article • Journal of the Brazilian Chemical Society, June 2011, FapUNIFESP (SciELO)

    Professor Keyller Bastos Borges

  25. Young Investigator

    Article • Bioanalysis, January 2011, Future Science

    Professor Keyller Bastos Borges

  26. Enantioselective biotransformation of propranolol to the active metabolite 4-hydroxypropranolol by endophytic fungi

    Article • Química Nova, January 2011, FapUNIFESP (SciELO)

    Professor Keyller Bastos Borges

  27. LC–MS–MS determination of ibuprofen, 2-hydroxyibuprofen enantiomers, and carboxyibuprofen stereoisomers for application in biotransformation studies employing endophytic fungi

    Article • Analytical and Bioanalytical Chemistry, November 2010, Springer Science + Business Media

    Professor Keyller Bastos Borges

  28. Assignment of the absolute configuration at the sulfur atom of thioridazine metabolites by the analysis of their chiroptical properties: The case of thioridazine 2-sulfoxide

    Article • Journal of Pharmaceutical and Biomedical Analysis, September 2010, Elsevier

    Professor Keyller Bastos Borges

  29. Stereoselective determination of midodrine and desglymidodrine in culture medium: Application to a biotransformation study employing endophytic fungi

    Article • Electrophoresis, April 2010, Wiley

    Professor Keyller Bastos Borges

  30. Enantioselective analysis of propranolol and 4-hydroxypropranolol by CE with application to biotransformation studies employing endophytic fungi

    Article • Electrophoresis, November 2009, Wiley

    Professor Keyller Bastos Borges

  31. Enantioselective Analysis of Fluoxetine and Norfluoxetine by LC in Culture Medium for Application in Biotransformation Studies Employing Fungi

    Article • Chromatographia, September 2009, Springer Science + Business Media

    Professor Keyller Bastos Borges

  32. Box-Behnken design for the optimization of an enantioselective method for the simultaneous analysis of propranolol and 4-hydroxypropranolol by CE

    Article • Electrophoresis, August 2009, Wiley

    Professor Keyller Bastos Borges

  33. Endophytic Fungi: Natural Products, Enzymes and Biotransformation Reactions

    Article • Current Organic Chemistry, August 2009, Bentham Science Publishers

    Professor Keyller Bastos Borges

  34. ChemInform Abstract: Stereoselective Biotransformations Using Fungi as Biocatalysts.

    Article • ChemInform, July 2009, Wiley

    Professor Keyller Bastos Borges

  35. Stereoselective biotransformations using fungi as biocatalysts

    Article • Tetrahedron Asymmetry, March 2009, Elsevier

    Professor Keyller Bastos Borges

  36. A simple method for the quantitative analysis of tyrosol by hplc in liquid Czapek Cultures from endophytic fungi

    Article • Journal of the Brazilian Chemical Society, January 2009, FapUNIFESP (SciELO)

    Professor Keyller Bastos Borges

  37. Stereoselective analysis of thioridazine-2-sulfoxide and thioridazine-5-sulfoxide: An investigation of rac-thioridazine biotransformation by some endophytic fungi

    Article • Journal of Pharmaceutical and Biomedical Analysis, April 2008, Elsevier

    Professor Keyller Bastos Borges

  38. Endophytic fungi as models for the stereoselective biotransformation of thioridazine

    Article • Applied Microbiology and Biotechnology, September 2007, Springer Science + Business Media

    Professor Keyller Bastos Borges

  39. Diazepam e nordiazepam em plasma: métodos de extração líquido-líquido e em fase sólida no pré-tratamento de amostras para análise cromatográfica em fase líquida

    Article • Química Nova, October 2005, FapUNIFESP (SciELO)

    Professor Keyller Bastos Borges