All Stories

  1. Simultaneous Determination of Medicinal Drugs with Overlapping Profiles Contained in Low Chromatographic Resolution Data using HPLC-DAD and Multivariate Curve Resolution

    Article • Current Analytical Chemistry, November 2019, Bentham Science Publishers

    Joaquim Esteves da Silva, Sarmento J. Mazivila

  2. Glucose Sensing by Fluorescent Nanomaterials

    Article • Critical Reviews in Analytical Chemistry, February 2019, Taylor & Francis

    Joaquim Esteves da Silva

  3. Theoretical Analysis of the Effect Provoked by Bromine-Addition on the Thermolysis and Chemiexcitation of a Model Dioxetanone

    Article • Journal of Chemistry, January 2017, Hindawi Publishing Corporation

    Joaquim Esteves da Silva

  4. Theoretical Analysis of the Binding of Potential Inhibitors to Protein Kinases MK2 and MK3

    Article • Medicinal Chemistry, July 2015, Bentham Science Publishers

    Joaquim Esteves da Silva

  5. An Optimized Firefly Luciferase Bioluminescent Assay for the Analysis of Free Fatty Acids

    Article • Photochemistry and Photobiology, May 2015, Wiley

    Joaquim Esteves da Silva

  6. Structural and electronic characterization of a Fridericia heliota luciferin-related derivative, based on quantum chemistry

    Article • Journal of Photochemistry and Photobiology A Chemistry, August 2014, Elsevier

    Joaquim Esteves da Silva

  7. Quantum/molecular mechanics study of firefly bioluminescence on luciferase oxidative conformation

    Article • Chemical Physics Letters, July 2014, Elsevier

    Joaquim Esteves da Silva

  8. Computational Study on the Vinyl Azide Decomposition

    Article • The Journal of Physical Chemistry A, July 2014, American Chemical Society (ACS)

    Joaquim Esteves da Silva

  9. Feeling and investigating blue: On the enthalpy of formation of indigo

    Article • The Journal of Chemical Thermodynamics, June 2014, Elsevier

    Joaquim Esteves da Silva

  10. A computational study of the structure, aromaticity and enthalpy of formation of UVA filter 4-tert-butyl-4′-methoxydibenzoylmethane

    Article • Computational and Theoretical Chemistry, June 2014, Elsevier

    Joaquim Esteves da Silva

  11. Gas-phase molecular structure and energetics of UVB filter 4-methylbenzylidene camphor: A computational study

    Article • Computational and Theoretical Chemistry, April 2014, Elsevier

    Joaquim Esteves da Silva

  12. Effect of air pollutant NO2 on Betula pendula, Ostrya carpinifolia and Carpinus betulus pollen fertility and human allergenicity

    Article • Environmental Pollution, March 2014, Elsevier

    Joaquim Esteves da Silva

  13. Theoretical study of the effect of resonance on π–π stacked firefly oxyluciferin dimers

    Article • Journal of Photochemistry and Photobiology A Chemistry, March 2014, Elsevier

    Joaquim Esteves da Silva

  14. Structural, Energetic, and UV–Vis Spectral Analysis of UVA Filter 4-tert-Butyl-4′-methoxydibenzoylmethane

    Article • The Journal of Physical Chemistry A, February 2014, American Chemical Society (ACS)

    Joaquim Esteves da Silva

  15. Fingerprint detection and using intercalated CdSe nanoparticles on non-porous surfaces

    Article • Analytica Chimica Acta, February 2014, Elsevier

    Manuel Algarra, Joaquim Esteves da Silva

  16. Anthocyanin profile and antioxidant capacity of black carrots (Daucus carota L. ssp. sativus var. atrorubens Alef.) from Cuevas Bajas, Spain

    Article • Journal of Food Composition and Analysis, February 2014, Elsevier

    Manuel Algarra, Joaquim Esteves da Silva

  17. Changes in the IgE-reacting protein profiles ofAcer negundo,Platanus x acerifoliaandQuercus roburpollen in response to ozone treatment

    Article • International Journal of Environmental Health Research, January 2014, Taylor & Francis

    Joaquim Esteves da Silva

  18. A nitric oxide quantitative assay by a glyceraldehyde 3-phosphate dehydrogenase/phosphoglycerate kinase/firefly luciferase optimized coupled bioluminescent assay

    Article • Analytical Methods, January 2014, Royal Society of Chemistry

    Joaquim Esteves da Silva

  19. Luminescent carbon nanoparticles: effects of chemical functionalization, and evaluation of Ag+ sensing properties

    Article • Journal of Materials Chemistry A, January 2014, Royal Society of Chemistry

    Manuel Algarra, Joaquim Esteves da Silva

  20. Comparative theoretical study of the binding of potential cancer-treatment drugs to Checkpoint kinase 1

    Article • Chemical Physics Letters, January 2014, Elsevier

    Joaquim Esteves da Silva

  21. Study of firefly luciferin oxidation and isomerism as possible inhibition pathways for firefly bioluminescence

    Article • Chemical Physics Letters, January 2014, Elsevier

    Joaquim Esteves da Silva

  22. CompX, a luciferin-related tyrosine derivative from the bioluminescent earthworm Fridericia heliota. Structure elucidation and total synthesis

    Article • Tetrahedron Letters, January 2014, Elsevier

    Joaquim Esteves da Silva

  23. AsLn2, a luciferin-related modified tripeptide from the bioluminescent earthworm Fridericia heliota

    Article • Tetrahedron Letters, January 2014, Elsevier

    Joaquim Esteves da Silva

  24. Dioxetanones’ peroxide bond as a charge-shifted bond: implications in the chemiluminescence process

    Article • Structural Chemistry, December 2013, Springer Science + Business Media

    Joaquim Esteves da Silva

  25. NO Fluorescence Quantification by Chitosan CdSe Quantum Dots Nanocomposites

    Article • Journal of Fluorescence, December 2013, Springer Science + Business Media

    Joaquim Esteves da Silva

  26. Theoretical study of the superoxide anion assisted firefly oxyluciferin formation

    Article • Chemical Physics Letters, December 2013, Elsevier

    Joaquim Esteves da Silva

  27. Exposure ofBetula pendulaRoth pollen to atmospheric pollutants CO, O3and SO2

    Article • Grana, December 2013, Taylor & Francis

    Joaquim Esteves da Silva

  28. Theoretical fingerprinting of the photophysical properties of four firefly bioluminophores

    Article • Photochemical & Photobiological Sciences, November 2013, Springer Science + Business Media

    Joaquim Esteves da Silva

  29. Adsorption of uranyl ions on kaolinite, montmorillonite, humic acid and composite clay material

    Article • Applied Clay Science, November 2013, Elsevier

    Manuel Algarra, Joaquim Esteves da Silva

  30. UV filter 2‐ethylhexyl 4‐methoxycinnamate: a structure, energetic and UV–vis spectral analysis based on density functional theory

    Article • Journal of Physical Organic Chemistry, October 2013, Wiley

    Joaquim Esteves da Silva

  31. In vitro exposure of Ostrya carpinifolia and Carpinus betulus pollen to atmospheric levels of CO, O3 and SO2

    Article • Environmental Science and Pollution Research, September 2013, Springer Science + Business Media

    Joaquim Esteves da Silva

  32. Firefly luciferin as a multifunctional chemiluminescence molecule

    Article • Photochemical & Photobiological Sciences, September 2013, Springer Science + Business Media

    Joaquim Esteves da Silva

  33. Inside Cover: Theoretical Photodynamic Study of the Photoprotolytic Cycle of Firefly Oxyluciferin (ChemPhysChem 12/2013)

    Article • ChemPhysChem, August 2013, Wiley

    Joaquim Esteves da Silva

  34. Theoretical study of the efficient fluorescence quenching process of the firefly luciferin

    Article • Journal of Photochemistry and Photobiology A Chemistry, August 2013, Elsevier

    Joaquim Esteves da Silva

  35. Oxyluciferin Photoacidity: The Missing Element for Solving the Keto–Enol Mystery?

    Article • ChemPhysChem, July 2013, Wiley

    Joaquim Esteves da Silva

  36. Quantitative analysis of organophosphorus pesticides in freshwater using an optimized firefly luciferase‐based coupled bioluminescent assay

    Article • Luminescence, July 2013, Wiley

    Joaquim Esteves da Silva

  37. Theoretical study of the correlation between superoxide anion consumption and firefly luciferin chemiluminescence

    Article • Chemical Physics Letters, July 2013, Elsevier

    Joaquim Esteves da Silva

  38. Mechanistic study of the unimolecular decomposition of 1,2‐dioxetanedione

    Article • Journal of Physical Organic Chemistry, June 2013, Wiley

    Joaquim Esteves da Silva

  39. Theoretical Photodynamic Study of the Photoprotolytic Cycle of Firefly Oxyluciferin

    Article • ChemPhysChem, June 2013, Wiley

    Joaquim Esteves da Silva

  40. Amino, ammonio and aminioethenes: a theoretical study of their structure and energetics

    Article • Journal of Physical Organic Chemistry, May 2013, Wiley

    Joaquim Esteves da Silva

  41. Coal Rank Increase and Aerial Oxidation by a Combination of Fourier Transform Infrared Spectroscopy with Multivariate Analysis

    Article • Spectroscopy Letters, May 2013, Taylor & Francis

    Joaquim Esteves da Silva, Manuel Algarra

  42. The structure and energetics of pyrrolidinones, tetrahydrofuranones, piperidinones, and tetrahydropyranones: a computational study

    Article • Structural Chemistry, March 2013, Springer Science + Business Media

    Joaquim Esteves da Silva

  43. NO Fluorescence Sensing by Europium Tetracyclines Complexes in the Presence of H2O2

    Article • Journal of Fluorescence, March 2013, Springer Science + Business Media

    Joaquim Esteves da Silva

  44. Interstate Crossing‐Induced Chemiexcitation as the Reason for the Chemiluminescence of Dioxetanones

    Article • ChemPhysChem, February 2013, Wiley

    Joaquim Esteves da Silva

  45. Luminescent behavior of CdTe quantum dots: Neodymium(III) complex-capped nanoparticles

    Article • Journal of Luminescence, February 2013, Elsevier

    Manuel Algarra, Joaquim Esteves da Silva

  46. Inclusion of thiol DAB dendrimer/CdSe quantum dots based in a membrane structure: Surface and bulk membrane modification

    Article • Electrochimica Acta, February 2013, Elsevier

    Manuel Algarra, Joaquim Esteves da Silva

  47. Component analysis of fluorescence spectra of thiol DAB dendrimer/ZnSe-PEA nanoparticles

    Article • Talanta, February 2013, Elsevier

    Manuel Algarra, Joaquim Esteves da Silva

  48. Chemiluminescence of 1,2‐dioxetanone studied by a closed‐shell DFT approach

    Article • International Journal of Quantum Chemistry, January 2013, Wiley

    Joaquim Esteves da Silva

  49. An optimized bioluminescent assay for inorganic sulfate quantitation in freshwater

    Article • Analytical Methods, January 2013, Royal Society of Chemistry

    Joaquim Esteves da Silva

  50. Current analytical strategies for C-reactive protein quantification in blood

    Article • Clinica Chimica Acta, January 2013, Elsevier

    Manuel Algarra, Joaquim Esteves da Silva

  51. Degradation of UV filters 2-ethylhexyl-4-methoxycinnamate and 4-tert-butyl-4'-methoxydibenzoylmethane in chlorinated water

    Article • Environmental Chemistry, January 2013, CSIRO Publishing

    Joaquim Esteves da Silva

  52. Efficient Firefly Chemi/Bioluminescence: Evidence for Chemiexcitation Resulting from the Decomposition of a Neutral Firefly Dioxetanone Molecule

    Article • The Journal of Physical Chemistry A, December 2012, American Chemical Society (ACS)

    Joaquim Esteves da Silva

  53. Advances in the knowledge of light emission by firefly luciferin and oxyluciferin

    Article • Journal of Photochemistry and Photobiology B Biology, December 2012, Elsevier

    Joaquim Esteves da Silva

  54. Excited-State Proton Transfer of Firefly Dehydroluciferin

    Article • The Journal of Physical Chemistry A, October 2012, American Chemical Society (ACS)

    Joaquim Esteves da Silva

  55. Thiolated DAB dendrimer/ZnSe nanoparticles for C-reactive protein recognition in human serum

    Article • Talanta, September 2012, Elsevier

    Joaquim Esteves da Silva, Manuel Algarra

  56. Optical Characterization of CdS Quantum Dots Nanoparticles Dispersed in Clays

    Article • Journal of Dispersion Science and Technology, August 2012, Taylor & Francis

    Manuel Algarra, Joaquim Esteves da Silva

  57. Comparative theoretical study of the binding of luciferyl-adenylate and dehydroluciferyl-adenylate to firefly luciferase

    Article • Chemical Physics Letters, August 2012, Elsevier

    Joaquim Esteves da Silva

  58. Solid luminescent CdSe‐thiolated porous phosphate heterostructures. Application in fingermark detection in different surfaces

    Article • Surface and Interface Analysis, July 2012, Wiley

    Joaquim Esteves da Silva, Manuel Algarra

  59. Comparative Study of the Photoprotolytic Reactions of d-Luciferin and Oxyluciferin

    Article • The Journal of Physical Chemistry A, July 2012, American Chemical Society (ACS)

    Joaquim Esteves da Silva

  60. Fatty Acid and Cholestrol Content of Manchego Type Cheese Prepared with Incorporated Avocado Oil

    Article • International Journal of Food Properties, July 2012, Taylor & Francis

    Manuel Algarra, Joaquim Esteves da Silva

  61. Layer-by-layer immobilization of carbon dots fluorescent nanomaterials on single optical fiber

    Article • Analytica Chimica Acta, July 2012, Elsevier

    Joaquim Esteves da Silva

  62. Response to “comment on density functional theory study of 1,2‐dioxetanone decomposition in condensed phase”

    Article • Journal of Computational Chemistry, June 2012, Wiley

    Joaquim Esteves da Silva

  63. CdS Quantum Dots Nanoparticles Dispersed in Zeolites. Optical Study

    Article • Journal of Dispersion Science and Technology, June 2012, Taylor & Francis

    Manuel Algarra, Joaquim Esteves da Silva

  64. The degradation products of UV filters in aqueous and chlorinated aqueous solutions

    Article • Water Research, June 2012, Elsevier

    Joaquim Esteves da Silva

  65. Theoretical analysis of the color tuning mechanism of oxyluciferin and 5-hydroxyoxyluciferin

    Article • Computational and Theoretical Chemistry, May 2012, Elsevier

    Joaquim Esteves da Silva

  66. CdSe and ZnSe quantum dots capped with PEA for screening C-reactive protein in human serum

    Article • Talanta, May 2012, Elsevier

    Joaquim Esteves da Silva, Manuel Algarra

  67. Novel β-cyclodextrin modified CdTe quantum dots as fluorescence nanosensor for acetylsalicylic acid and metabolites

    Article • Materials Science and Engineering C, May 2012, Elsevier

    Joaquim Esteves da Silva, Manuel Algarra

  68. Firefly Chemiluminescence and Bioluminescence: Efficient Generation of Excited States

    Article • ChemPhysChem, April 2012, Wiley

    Joaquim Esteves da Silva

  69. Density functional theory study of 1,2‐dioxetanone decomposition in condensed phase

    Article • Journal of Computational Chemistry, April 2012, Wiley

    Joaquim Esteves da Silva

  70. Reduced Fluoresceinamine for Peroxynitrite Quantification in the Presence of Nitric Oxide

    Article • Journal of Fluorescence, April 2012, Springer Science + Business Media

    Joaquim Esteves da Silva

  71. Optimisation of bisphenol A removal from water using chemically modified pine bark and almond shell

    Article • Chemistry and Ecology, April 2012, Taylor & Francis

    Joaquim Esteves da Silva

  72. Analysis of the performance of DFT functionals in the study of light emission by oxyluciferin analogs

    Article • International Journal of Quantum Chemistry, February 2012, Wiley

    Joaquim Esteves da Silva

  73. In Vitro Exposure of Acer negundo Pollen to Atmospheric Levels of SO2 and NO2: Effects on Allergenicity and Germination

    Article • Environmental Science & Technology, February 2012, American Chemical Society (ACS)

    Joaquim Esteves da Silva

  74. TD-DFT/Molecular Mechanics Study of the Photinus pyralis Bioluminescence System

    Article • The Journal of Physical Chemistry B, February 2012, American Chemical Society (ACS)

    Joaquim Esteves da Silva

  75. Flow injection analysis for nitric oxide quantification based on reduced fluoresceinamine

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

    Joaquim Esteves da Silva

  76. A New Insight on Silicon Dots

    Article • Current Analytical Chemistry, January 2012, Bentham Science Publishers

    Joaquim Esteves da Silva

  77. Thiolated DAB dendrimers and CdSe quantum dots nanocomposites for Cd(II) or Pb(II) sensing

    Article • Talanta, January 2012, Elsevier

    Joaquim Esteves da Silva, Manuel Algarra

  78. Carbon and Silicon Fluorescent Nanomaterials

    Article • December 2011, IntechOpen

    Joaquim Esteves da Silva

  79. Aza‐Diels–Alder reaction between cyclopentadiene and protonated N‐phenylethyliminoacetates of 8‐phenylmenthol and 8‐phenylneomenthol: a density functional theory study

    Article • Journal of Physical Organic Chemistry, November 2011, Wiley

    Joaquim Esteves da Silva

  80. Vapor pressures and enthalpies of vaporization of azides

    Article • The Journal of Chemical Thermodynamics, November 2011, Elsevier

    Manuel Algarra, Joaquim Esteves da Silva

  81. Study on the Effects of Intermolecular Interactions on Firefly Multicolor Bioluminescence

    Article • ChemPhysChem, September 2011, Wiley

    Joaquim Esteves da Silva

  82. Analytical and bioanalytical applications of carbon dots

    Article • TrAC Trends in Analytical Chemistry, September 2011, Elsevier

    Joaquim Esteves da Silva

  83. Theoretical modulation of the color of light emitted by firefly oxyluciferin

    Article • Journal of Computational Chemistry, June 2011, Wiley

    Joaquim Esteves da Silva

  84. Kinetics of inhibition of firefly luciferase by dehydroluciferyl-coenzyme A, dehydroluciferin and l-luciferin

    Article • Photochemical & Photobiological Sciences, June 2011, Springer Science + Business Media

    Joaquim Esteves da Silva

  85. Chemometric Analysis of Excitation Emission Matrices of Fluorescent Nanocomposites

    Article • Journal of Fluorescence, May 2011, Springer Science + Business Media

    Joaquim Esteves da Silva

  86. Synthesis and Analytical Applications of Quantum Dots Coated with Different Generations of DAB Dendrimers

    Article • April 2011, IntechOpen

    Manuel Algarra, Joaquim Esteves da Silva

  87. Niclosamide quantification in methyl-β-cyclodextrin after derivatization to aminoniclosamide

    Article • Journal of inclusion phenomena and molecular recognition in chemistry, March 2011, Springer Science + Business Media

    Manuel Algarra, Joaquim Esteves da Silva

  88. Computational Studies of the Luciferase Light-Emitting Product: Oxyluciferin

    Article • Journal of Chemical Theory and Computation, March 2011, American Chemical Society (ACS)

    Joaquim Esteves da Silva

  89. LC–MS and microscale NMR analysis of luciferin-related compounds from the bioluminescent earthworm Fridericia heliota

    Article • Journal of Photochemistry and Photobiology B Biology, March 2011, Elsevier

    Joaquim Esteves da Silva

  90. Computational Investigation of the Effect of pH on the Color of Firefly Bioluminescence by DFT

    Article • ChemPhysChem, February 2011, Wiley

    Joaquim Esteves da Silva

  91. CdSe quantum dots capped PAMAM dendrimer nanocomposites for sensing nitroaromatic compounds

    Article • Talanta, February 2011, Elsevier

    Manuel Algarra, Joaquim Esteves da Silva

  92. PARAFAC based methods for the analysis of Diltiazem drug excitation emission matrices of fluorescence obtained by a derivatization reaction

    Article • Analytical Methods, January 2011, Royal Society of Chemistry

    Joaquim Esteves da Silva

  93. Metal-enhanced photoluminescence from carbon nanodots

    Article • Chemical Communications, January 2011, Royal Society of Chemistry

    Joaquim Esteves da Silva

  94. Optical fiber sensor for Hg(II) based on carbon dots

    Article • Biosensors and Bioelectronics, December 2010, Elsevier

    Joaquim Esteves da Silva

  95. Luminol-Doped Nanostructured Composite Materials for Chemiluminescent Sensing of Hydrogen Peroxide

    Article • Analytical Letters, November 2010, Taylor & Francis

    Manuel Algarra, Joaquim Esteves da Silva

  96. Parallel factor analysis of EEM of the fluorescence of carbon dots nanoparticles

    Article • Journal of Chemometrics, November 2010, Wiley

    Joaquim Esteves da Silva

  97. Firefly luciferase inhibition

    Article • Journal of Photochemistry and Photobiology B Biology, October 2010, Elsevier

    Joaquim Esteves da Silva

  98. Multivariate analysis of the water quality variation in the Serra da Estrela (Portugal) Natural Park as a consequence of road deicing with salt

    Article • Chemometrics and Intelligent Laboratory Systems, July 2010, Elsevier

    Joaquim Esteves da Silva

  99. Factorial analysis of the trihalomethane formation in the reaction of colloidal, hydrophobic, and transphilic fractions of DOM with free chlorine

    Article • Environmental Science and Pollution Research, April 2010, Springer Science + Business Media

    Joaquim Esteves da Silva

  100. Fluorescent Carbon Dots Capped with PEG200 and Mercaptosuccinic Acid

    Article • Journal of Fluorescence, March 2010, Springer Science + Business Media

    Joaquim Esteves da Silva

  101. Hg(II) sensing based on functionalized carbon dots obtained by direct laser ablation

    Article • Sensors and Actuators B Chemical, March 2010, Elsevier

    Joaquim Esteves da Silva

  102. Wavelength encoded analytical imaging and fiber optic sensing with pH sensitive CdTe quantum dots

    Article • Talanta, March 2010, Elsevier

    Joaquim Esteves da Silva

  103. Reduced Fluoresceinamine as a Fluorescent Sensor for Nitric Oxide

    Article • Sensors, March 2010, MDPI AG

    Joaquim Esteves da Silva

  104. Comparison of adipocere formation in four soil types of the Porto (Portugal) district

    Article • Forensic Science International, February 2010, Elsevier

    Manuel Algarra, Joaquim Esteves da Silva

  105. Chemometric Classification of Cultivars of Olives

    Article • January 2010, Elsevier

    Joaquim Esteves da Silva

  106. LC-MS identification of derivatized free fatty acids from adipocere in soil samples

    Article • Journal of Separation Science, December 2009, Wiley

    Manuel Algarra, Joaquim Esteves da Silva

  107. Porous phosphate heterostructures containing CdS quantum dots: assembly, characterization and photoluminescence

    Article • Journal of inclusion phenomena and molecular recognition in chemistry, November 2009, Springer Science + Business Media

    Manuel Algarra, Joaquim Esteves da Silva

  108. Fluorescent Properties of a Hybrid Cadmium Sulfide-Dendrimer Nanocomposite and its Quenching with Nitromethane

    Article • Journal of Fluorescence, September 2009, Springer Science + Business Media

    Manuel Algarra, Joaquim Esteves da Silva

  109. Optical fibre sensing and analytical imaging with semiconductor nanocrystals

    Article • June 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Joaquim Esteves da Silva

  110. ADSORPTION AND RECOVERY OF NITRATED POLYCYCLIC AROMATIC HYDROCARBONS ON HYBRID SURFACTANT EXPANDED ZIRCONIUM-PHOSPHATE

    Article • Polycyclic Aromatic Compounds, February 2009, Taylor & Francis

    Joaquim Esteves da Silva, Manuel Algarra

  111. Mercury(ii) sensing based on the quenching of fluorescence of CdS–dendrimer nanocomposites

    Article • The Analyst, January 2009, Royal Society of Chemistry

    Manuel Algarra, Joaquim Esteves da Silva

  112. Multiway chemometric decomposition of EEM of fluorescence of CdTe quantum dots obtained as function of pH

    Article • Analytica Chimica Acta, November 2008, Elsevier

    Joaquim Esteves da Silva

  113. Firefly bioluminescence: A mechanistic approach of luciferase catalyzed reactions

    Article • IUBMB Life, October 2008, Wiley

    Joaquim Esteves da Silva

  114. Fiber optic lifetime pH sensing based on ruthenium(II) complexes with dicarboxybipyridine

    Article • Analytica Chimica Acta, September 2008, Elsevier

    Joaquim Esteves da Silva

  115. Kinetics of inhibition of firefly luciferase by oxyluciferin and dehydroluciferyl-adenylate

    Article • Photochemical & Photobiological Sciences, August 2008, Springer Science + Business Media

    Joaquim Esteves da Silva

  116. PARAFAC Analysis of the Quenching of EEM of Fluorescence of Glutathione Capped CdTe Quantum Dots by Pb(II)

    Article • Journal of Fluorescence, July 2008, Springer Science + Business Media

    Joaquim Esteves da Silva

  117. An optimized luciferase bioluminescent assay for coenzyme A

    Article • Analytical and Bioanalytical Chemistry, April 2008, Springer Science + Business Media

    Joaquim Esteves da Silva

  118. Optimization of Verapamil Drug Analysis by Excitation-Emission Fluorescence in Combination with Second-order Multivariate Calibration

    Article • Journal of Fluorescence, March 2008, Springer Science + Business Media

    Joaquim Esteves da Silva

  119. Pyrophosphate and tripolyphosphate affect firefly luciferase luminescence because they act as substrates and not as allosteric effectors

    Article • European Journal of Biochemistry, February 2008, Wiley

    Joaquim Esteves da Silva

  120. Factorial analysis optimization of a Diltiazem kinetic spectrophotometric quantification method

    Article • Analytica Chimica Acta, February 2008, Elsevier

    Joaquim Esteves da Silva

  121. Experimental Determination of Ultraviolet Radiation Protection of Common Materials

    Article • Journal of Chemical Education, December 2007, American Chemical Society (ACS)

    Joaquim Esteves da Silva

  122. PARAFAC2 and MCR-ALS quantification of Diltiazem antihypertensor based on a kinetic spectrophotometric methodology

    Article • Chemometrics and Intelligent Laboratory Systems, November 2007, Elsevier

    Joaquim Esteves da Silva

  123. Factorial analysis of the trihalomethanes formation in water disinfection using chlorine

    Article • Analytica Chimica Acta, July 2007, Elsevier

    Joaquim Esteves da Silva

  124. Evaluation of the Pesticide Contamination of Groundwater Sampled over Two Years from a Vulnerable Zone in Portugal

    Article • Journal of Agricultural and Food Chemistry, July 2007, American Chemical Society (ACS)

    Joaquim Esteves da Silva

  125. MCR of the quenching of the EEM of fluorescence of dissolved organic matter by metal ions

    Article • Analytica Chimica Acta, July 2007, Elsevier

    Joaquim Esteves da Silva

  126. Multivariate Curve Resolution of Synchronous Fluorescence Spectra Matrices of Fulvic Acids Obtained as a Function of pH

    Article • Applied Spectroscopy, November 2006, SAGE Publications

    Joaquim Esteves da Silva

  127. Multivariate curve resolution of multidimensional excitation–emission quenching matrices of a Laurentian soil fulvic acid

    Article • Chemosphere, September 2006, Elsevier

    Joaquim Esteves da Silva

  128. Firefly Luciferase Produces Hydrogen Peroxide as a Coproduct in Dehydroluciferyl Adenylate Formation

    Article • ChemBioChem, May 2006, Wiley

    Joaquim Esteves da Silva

  129. PARAFAC and PARAFAC2 calibration models for antihypertensor Nifedipine quantification

    Article • Analytica Chimica Acta, February 2006, Elsevier

    Joaquim Esteves da Silva

  130. Chemometric interpretation of pesticide occurence in soil samples from an intensive horticulture area in north Portugal

    Article • Analytica Chimica Acta, February 2006, Elsevier

    Joaquim Esteves da Silva

  131. Coenzyme A affects firefly luciferase luminescence because it acts as a substrate and not as an allosteric effector

    Article • European Journal of Biochemistry, October 2005, Wiley

    Joaquim Esteves da Silva

  132. Multivariate curve resolution analysis excitation-emission matrices of fluorescence of humic substances

    Article • Analytica Chimica Acta, August 2005, Elsevier

    Joaquim Esteves da Silva

  133. Chemometric classification of olives from three Portuguese cultivars of Olea europaea L.

    Article • Analytica Chimica Acta, July 2005, Elsevier

    Joaquim Esteves da Silva

  134. Synthesis of Luciferyl Coenzyme A: A Bioluminescent Substrate for Firefly Luciferase in the Presence of AMP

    Article • Angewandte Chemie, May 2005, Wiley

    Joaquim Esteves da Silva

  135. Synthesis of Luciferyl Coenzyme A: A Bioluminescent Substrate for Firefly Luciferase in the Presence of AMP

    Article • Angewandte Chemie, May 2005, Wiley

    Joaquim Esteves da Silva

  136. Luminescence-Based Optical Fiber Chemical Sensors

    Article • Fiber & Integrated Optics, May 2005, Taylor & Francis

    Joaquim Esteves da Silva

  137. Detection of 2,4,6-trichloroanisole in chlorinated water at nanogram per litre levels by SPME–GC–ECD

    Article • Analytical and Bioanalytical Chemistry, April 2005, Springer Science + Business Media

    Joaquim Esteves da Silva

  138. Chemical synthesis and firefly luciferase produced dehydroluciferyl-coenzyme A

    Article • Tetrahedron Letters, March 2004, Elsevier

    Joaquim Esteves da Silva

  139. Identification of Luciferyl Adenylate and Luciferyl Coenzyme A Synthesized by Firefly Luciferase

    Article • ChemBioChem, December 2003, Wiley

    Joaquim Esteves da Silva

  140. pH opposite effects on synthesis of dinucleoside polyphosphates and on oxidation reactions catalyzed by firefly luciferase

    Article • FEBS Letters, April 2003, Wiley

    Joaquim Esteves da Silva

  141. Metal ion complexation properties of fulvic acids extracted from composted sewage sludge as compared to a soil fulvic acid

    Article • Water Research, July 2002, Elsevier

    Joaquim Esteves da Silva, César Oliveira

  142. Detection of verapamil drug by fluorescence and trilinear decomposition techniques

    Article • Analytica Chimica Acta, February 2002, Elsevier

    Joaquim Esteves da Silva

  143. Factorial analysis of a chemiluminescence system for bromate detection in water

    Article • Analytica Chimica Acta, December 2001, Elsevier

    Joaquim Esteves da Silva

  144. Identification of enzyme produced firefly oxyluciferin by reverse phase HPLC

    Article • Tetrahedron Letters, November 2001, Elsevier

    Joaquim Esteves da Silva

  145. Parafac decomposition of three-way kinetic-spectrophotometric spectral matrices corresponding to mixtures of heavy metal ions

    Article • Talanta, July 1999, Elsevier

    Joaquim Esteves da Silva, César Oliveira

  146. Sediments as monitors of heavy metal contamination in the Ave river basin (Portugal): multivariate analysis of data

    Article • Environmental Pollution, June 1999, Elsevier

    Joaquim Esteves da Silva

  147. Method for Rapid Screening of Chlorophenols Using a Reduced Calibration Set of UV Spectra and Multivariate Calibration Techniques

    Article • Analytical Letters, November 1998, Taylor & Francis

    Joaquim Esteves da Silva

  148. Method for the differentiation of leaf litter extracts and study of their interaction with Cu(II) by molecular fluorescence

    Article • Canadian Journal of Chemistry, August 1998, Canadian Science Publishing

    Joaquim Esteves da Silva

  149. Effect of pH on complexation of Fe(III) with fulvic acids

    Article • Environmental Toxicology and Chemistry, July 1998, Wiley

    Joaquim Esteves da Silva, César Oliveira

  150. Fluorescence quenching of anthropogenic fulvic acids by Cu(II), Fe(III) and UO22+

    Article • Talanta, April 1998, Elsevier

    Joaquim Esteves da Silva, César Oliveira

  151. Effect of the pH on the complexation of Cu(II), Ni(II) and Fe(III) Ions by a vine leaf litter extract by fluorescence quenching

    Article • Microchimica Acta, March 1998, Springer Science + Business Media

    Joaquim Esteves da Silva

  152. Trilinear PARAFAC decompositionof synchronous fluorescence spectra of mixtures of themajor metabolites of acetylsalicylic acid

    Article • The Analyst, January 1998, Royal Society of Chemistry

    Joaquim Esteves da Silva

  153. Variation of the stability of complexes of Al(III) with a fulvic acid extracted from a humic cambisol soil in the pH range three to five

    Article • Environmental Toxicology and Chemistry, September 1997, Wiley

    Joaquim Esteves da Silva

  154. Study of the interaction of Al(III) with a soil fulvic acid in the acid pH range by self-modeling mixture analysis of synchronous fluorescence spectral data

    Article • Analytica Chimica Acta, August 1997, Elsevier

    Joaquim Esteves da Silva, César Oliveira

  155. The complexation of Cu(II) by anthropogenic fulvic acids extracted from composted urban and livestock wastes

    Article • Journal of Environmental Science and Health Part B, July 1997, Taylor & Francis

    Joaquim Esteves da Silva

  156. Study of the complexation of Cu(II) by fulvic acids extracted from a sewage sludge and its compost

    Article • Analytical and Bioanalytical Chemistry, March 1997, Springer Science + Business Media

    Joaquim Esteves da Silva

  157. Procedure for the Classification of Fulvic Acids and Similar Substances Based on the Variation With pH of Their Synchronous Fluorescence Spectra

    Article • The Analyst, January 1997, Royal Society of Chemistry

    Joaquim Esteves da Silva

  158. Quantitative Study of Be(II) Complexation by Soil Fulvic Acids by Molecular Fluorescence Spectroscopy

    Article • Environmental Science & Technology, October 1996, American Chemical Society (ACS)

    Joaquim Esteves da Silva

  159. Characterization of the binding sites for Al(III) and Be(II) in a sample of marine fulvic acids

    Article • Marine Chemistry, October 1996, Elsevier

    Joaquim Esteves da Silva

  160. Classification of binding sites for Al(III) in fulvic acids extracted from leaf litters and soils by synchronous fluorescence spectroscopy and multidimensional chemometric analysis

    Article • Analytica Chimica Acta, October 1996, Elsevier

    Joaquim Esteves da Silva

  161. Interaction of Fulvic Acids with Al(III) Studied by Self-Modeling Curve Resolution of Second-Derivative Synchronous Fluorescence Spectra

    Article • Applied Spectroscopy, April 1996, SAGE Publications

    Joaquim Esteves da Silva

  162. Simultaneous use of evolving factor analysis of fluorescence spectral data and analysis of pH titration data for comparison of the acid-base properties of fulvic acids

    Article • Analytica Chimica Acta, January 1996, Elsevier

    Joaquim Esteves da Silva

  163. Study of the interaction of a soil fulvic acid with UO2 2+ by self-modelling mixture analysis of synchronous molecular fluorescence spectra

    Article • The Analyst, January 1996, Royal Society of Chemistry

    Joaquim Esteves da Silva, César Oliveira

  164. Beryllium(II) as a Probe for Study of the Interactions of Metals and Fulvic Acids by Synchronous Fluorescence Spectroscopy

    Article • Applied Spectroscopy, October 1995, SAGE Publications

    Joaquim Esteves da Silva

  165. Characterization of the Acid-Base Properties of Humic Substances by Chemometric Analysis of Synchronous Fluorescence and pH Potentiometric Data

    Article • Analytical Letters, October 1995, Taylor & Francis

    Joaquim Esteves da Silva

  166. Evolving factor analysis of synchronous fluorescence spectra of humic substances in the presence of Cu(II)

    Article • Chemometrics and Intelligent Laboratory Systems, January 1995, Elsevier

    Joaquim Esteves da Silva

  167. Self-modelling curve resolution analysis of synchronous fluorescence spectroscopy data for characterization of acid mixtures and study of acid–base equilibria

    Article • The Analyst, January 1995, Royal Society of Chemistry

    Joaquim Esteves da Silva

  168. Evolving factor analysis of synchronous fluorescence spectra of humic substances in the presence of Cu(II)

    Article • Chemometrics and Intelligent Laboratory Systems, January 1995, Elsevier

    Joaquim Esteves da Silva

  169. A combination of synchronous fluorescence spectroscopy with chemometric treatment and internal standards in non-aqueous potentiometric titrations of fulvic acids

    Article • Talanta, December 1994, Elsevier

    Joaquim Esteves da Silva

  170. Evolving Factor Analysis of Synchronous Fluorescence Spectra of Fulvic Acids in the Presence of Aluminum

    Article • Applied Spectroscopy, March 1994, SAGE Publications

    Joaquim Esteves da Silva

  171. Seasonal variations of heavy metals in sediments and aquatic mosses from the Cávado river basin (Portugal)

    Article • The Science of The Total Environment, March 1994, Elsevier

    Joaquim Esteves da Silva

  172. Factor analysis of molecular fluorescence data of marine and soil fulvic acids

    Article • Chemometrics and Intelligent Laboratory Systems, June 1993, Elsevier

    Joaquim Esteves da Silva

  173. Study of aqueous acidic properties of fulvic acids by evolving factor analysis of pH + FT-IR titration data

    Article • Chemometrics and Intelligent Laboratory Systems, November 1992, Elsevier

    Joaquim Esteves da Silva