S. Costa

S. Costa, P. Paulo, 2003, Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology.

Spectroscopic studies of 9,10-phenanthrenequinones in solution and on a silica surface

D. Nicodem, S. Costa, D. Togashi, 2001 .

Organization of cationic porphyrins in mixed Langmuir-Blodgett films. An absorption and steady-state fluorescence study

S. Costa, P. A. Antunes, A. M. G. D. Silva, 2002 .

Enhanced fluorescence of a dye on DNA-assembled gold nanodimers discriminated by lifetime correlation spectroscopy

S. Martins, P. Zijlstra, A. Jóskowiak, 2018 .

Energy transfer in complexes between a crown ether and various lanthanide salts

S. Costa, M. M. Queimado, J.J.R. Frausto da Silva, 1980 .

Thermally induced spectral diffusion of Rhodamine 3B in viscous polyols

S. Costa, J. Ferreira, 2001 .

Fluorescence quantum yield evaluation of strongly absorbing dye solutions as a function of the excitation wavelength

S. Costa, L. Ferreira, E. Pereira, 1991 .

Kinetics of oxygen induced delayed fluorescence of eosin adsorbed on alumina. The dependence on dye and oxygen concentrations

S. Costa, P. Levin, 2000 .

The Location of Tryptophan, N‐acetyltryptophan and α‐Chymotrypsin in Reverse Micelles of AOT: A Fluorescence Study ¶

S. M. Andrade, S. Costa, 2000 .

The Location of Tryptophan, N-acetyltryptophan and α-Chymotrypsin in Reverse Micelles of AOT: A Fluorescence Study¶

S. M. Andrade, S. Costa, 2000, Photochemistry and photobiology.

Mechanism of photosensitized reduction of tetrazolium blue I. homogeneous solvent: ethanol

S. Costa, M. I. Viseu, 1993 .

Mechanism of photosensitized reduction of tetrazolium blue II. Heterogeneous solvent: Triton X-100 micelles

S. Costa, M. I. Viseu, 1993 .

Optical spectroscopy and photochemistry of porphyrins and phthalocyanines

S. M. Andrade, S. Costa, P. Paulo, 2009 .

Incorporation of β-lactoglobulin in a lipid/porphyrin monolayer at the air–water interface

S. Costa, R. Romão, A. M. G. D. Silva, 2004 .

Behaviour of the water-soluble meso-tetra(4-methylpyridyl)porphine in mixed monolayers and in Langmuir–Blodgett films

S. Costa, R. Romão, A. M. G. D. Silva, 2002 .

Fluorescence quantum yield evaluation of strongly absorbing dye solutions as a function of the dye concentration

S. Costa, L. Ferreira, 1991 .

Excited state quenching kinetics of zinc meso-tetrakis (N-methylpyridinium-4-yl) porphyrin by methyl viologen in AOT reverse micelles

S. Costa, D. Togashi, 2002 .

EXCITED-STATE BEHAVIOR OF 7-DIETHYLAMINOCOUMARIN DYES IN AOT REVERSED MICELLES : SIZE EFFECTS

S. Costa, B. Raju, 1999 .

Nanosecond time resolved emission spectroscopy of aminocoumarins in AOT reversed micelles

S. Costa, B. Raju, 1999 .

Intramolecular excited state interactions in amino-esters

M. Prieto, S. Costa, R. Davidson, 1980 .

Excited states of aromatic esters

M. Prieto, S. Costa, A. Maçanita, 1979 .

Structural changes in W/O triton X-100/cyclohexane-hexanol/water microemulsions probed by a fluorescent drug Piroxicam

R. Pansu, S. M. Andrade, S. Costa, 2000 .

Non-Markovian effects in the radiationless decay of rhodamine 3B+ in water: ethanol mixtures

S. Costa, J. Ferreira, 2003 .

Photosubstitution reactions on di-η5-cyclopentadienylmolybdenum and -tunsten complexes

F. Pina, S. Costa, A. R. Dias, 1979 .

Kinetics of return intersystem electron transfer in triplet radical ion pairs in solution and on silica. Surface effect on bell-shaped energy-gap dependence

S. Costa, P. Levin, L. F. V. Ferreira, 1994 .

Conformations of a non-steroidal anti-inflammatory drug nabumetone in aqueous environments

S. Costa, M. A. Santos, M. Valero, 2000 .

Complexation of the Non-steroidal Anti-inflammatory Drug Nabumetone with Modified and Unmodified Cyclodextrins

S. Costa, J. Ascenso, Margarita Valero, 1999 .

Hydrogen bonding in a non-steroidal anti-inflammatory drug--Naproxen.

M. M. Velázquez, S. Costa, M. A. Santos, 1995, Journal of photochemistry and photobiology. B, Biology.

Non-radiative decay in rhodamines: Role of 1:1 and 1:2 molecular complexation with β-cyclodextrin

S. Costa, Sílvia M. B. Costa, José Antunes Ferreira, 2005 .

Rotational Friction in AOT Microemulsions: Relevance of Hydrodynamic and Dielectric Contributions to Microviscosities Probed by Fluorescent Bis[4-(dimethylamino)phenyl] Squaraine

S. Costa, C. Laia, 2002 .

Temperature and Composition Dependence of the Structure of Isooctane/AOT Microemulsion L2 Phases with Glycerol and Formamide: A Light Scattering Study†

W. Brown, S. Costa, C. Laia, 2000 .

The role of molecular size in the excited state behavior of aminocoumarin dyes in restricted media--2: study of BC I in AOT-formamide reversed micelles.

S. Costa, B. Raju, 2000, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Dynamic Light Scattering Study of AOT Microemulsions with Nonaqueous Polar Additives in an Oil Continuous Phase

P. López-Cornejo, J. Martinho, S. Costa, 1998 .

Luminescence of Zinc Tetraphenylporphyrin in Ethylene Glycol-in-Oil Microemulsions

S. Costa, P. L. and, 1998 .

Hydrogen bonding effects in the photophysics of a drug, Piroxicam, in homogeneous media and dioxane–water mixtures

S. M. Andrade, S. Costa, 1999 .

Organization of meso-Tetra(4-N-stearylpyridyl)porphine in Pure and Mixed Monolayers at the Air/Water Interface and in Langmuir−Blodgett Films

S. Costa, A. M. G. D. Silva, M. I. Viseu, 2000 .

Spontaneous Vesicles Formed in Aqueous Mixtures of Two Cationic Amphiphiles

K. Edwards, S. Costa, M. I. Viseu, 2000 .

Premicellar aggregates in a mixed system of a surfactant (SDS) and polymer (EHEC)

S. Costa, G. Medeiros, 1996 .

Effect of the structure and concentration of cyclodextrins in the quenching process of naproxen

S. Costa, M. Valero, M. P. López-Cornejo, 2007 .

Energy Transfer and Fluorescence Quenching in Complexes of Polymethine Dyes with Human Serum Albumin ¶

S. Costa, A. Tatikolov, 2004, Photochemistry and photobiology.

Energy Transfer and Fluorescence Quenching in Complexes of Polymethine Dyes with Human Serum Albumin¶

S. Costa, A. Tatikolov, 2004 .

Quenching of two conformers of the naphthalene derivative, nabumetone, in water

P. López-Cornejo, S. Costa, M. Valero, 2008 .

Photodegradation of Nabumetone in aqueous solutions

S. Costa, M. Valero, 2003 .

The Influence of Water on the Photophysical and Photochemical Properties of Piroxicam in AOT/iso‐octane/Water Reversed Micelles

R. Pansu, S. M. Andrade, S. Costa, 2000, Photochemistry and photobiology.

Steady state and dynamic quenching of zinc tetramethylpyridylporphyrin by methyl viologen ion pairs. Salt effects

S. Costa, D. Togashi, 2002 .

Spectroscopy of photoinduced charge-transfer reactions between tetrasulfonated aluminium phthalocyanine and methyl viologen.

A. Parker, D. Phillips, S. Costa, 2003, Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology.

Photochemistry on Surfaces: Matrix Isolation Mechanisms Study of Interactions of Benzophenone Adsorbed on Microcrystalline Cellulose Investigated by Diffuse Reflectance and Luminescence Techniques

I. Khmelinskii, S. Costa, J. Netto-Ferreira, 1995 .

Photochemistry on surfaces: solvent–matrix effect on the swelling of cellulose. An emission and absorption study of adsorbed auramine O

S. Costa, Ana R. Garcia, L. F. V. Ferreira, 1993 .

Interactions of excited-state porphyrin–quinone in reversed micelles studied by time-resolved fluorescence spectroscopy

S. Costa, Ralph L. Brookfield, 1986 .

Photoinduced electron transfer in non-aqueous microemulsions

P. López-Cornejo, S. Costa, C. Laia, 2001 .

The effect of anionic, cationic and neutral surfactants on the photophysics and isomerization of 3,3′-diethylthiacarbocyanine

A. M. Vinogradov, S. Costa, A. Tatikolov, 2001 .

Structural changes of α-chymotrypsin in reverse micelles of AOT studied by steady state and transient state fluorescence spectroscopy

S. M. Andrade, S. Costa, 2001 .

The aqueous environment in AOT and Triton X-100 (w/o) microemulsions probed by fluorescence

S. M. Andrade, S. Costa, 2002, Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology.

Cutinase-AOT interactions in reverse micelles: the effect of 1-hexanol.

S. Petersen, J. Cabral, S. Costa, 2003, Chemistry and physics of lipids.

Fluorescence quenching of Acridine Orange in microemulsions induced by the non-steroidal anti-inflammatory drug Piroxicam

S. M. Andrade, S. Costa, 2003, Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology.

Photokinetics in tetraphenylporphyrin – molecular oxygen system at gas/solid interfaces: effect of singlet oxygen quenchers on oxygen-induced delayed fluorescence

S. Costa, P. Levin, 2001 .

Fluorescence quenching of a squaraine dye by water in AOT reversed micelles

S. Costa, C. Laia, 1998 .

Fluorescence studies of the drug Piroxicam in reverse micelles of AOT and microemulsions of Triton X-100

S. M. Andrade, S. Costa, 1996 .

Polyelectrolyte-assisted noncovalent functionalization of carbon nanotubes with ordered self-assemblies of a water-soluble porphyrin.

P. Serp, V. Saini, S. M. Andrade, 2012, Chemphyschem : a European journal of chemical physics and physical chemistry.

J-aggregate formation in bis-(4-carboxyphenyl)porphyrins in water : pH and counterion dependence

M. Neves, J. Cavaleiro, S. M. Andrade, 2010 .

Fluorescence of acridine and acridine 9-carboxylic acid in anionic micelles

S. Costa, M. Leitão, G. Medeiros, 1993 .

Rhodamine 3B+ClO4− in water:toluene mixtures: Evidence of water cluster formation

S. Costa, J. Ferreira, 1999 .

Transient photokinetics of Rhodamine 3B+ClO4− in water:toluene mixtures

P. Coutinho, J. Martinho, S. Costa, 2000 .

Time evolution of monomers and aggregates of a polymethine dye probe the dynamics of model vesicles and micelles

S. Costa, A. Tatikolov, R. Correia, 2014 .

Unfolding kinetics of beta-lactoglobulin induced by surfactant and denaturant: a stopped-flow/fluorescence study.

S. Costa, E. Melo, R. Correia, 2007, Biophysical journal.

Conformational transitions in beta-lactoglobulin induced by cationic amphiphiles: equilibrium studies.

S. Costa, M. I. Viseu, T. Carvalho, 2004, Biophysical journal.

Effect of zeolite properties on ground-state and triplet-triplet absorption, prompt and oxygen induced delayed fluorescence of tetraphenylporphyrin at gas/solid interface.

F. R. Ribeiro, S. Costa, P. Levin, 2000, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Water in toluene revisited: vibrational patterns in the stretching region.

L. Ilharco, S. Costa, J. Ferreira, 2001, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Transient effects in charge-transfer diffusion-controlled processes in nonionic micelles

S. Costa, A. Maçanita, 1980 .

The formation of radical ions of ZnTPP in lecithin vesicles evaluated by a global kinetic treatment

P. Coutinho, S. Costa, P. J. Coutinho, 1994 .

Photochemical reactions in organized assemblies. 37. Photochemistry and photophysics of surfactant trans-stilbenes in supported multilayers and films at the air-water interface

P. E. Brown, L. Pedersen, D. Whitten, 1984 .

Self-aggregation of free base porphyrins in aqueous solution and in DMPC vesicles.

A. J. Sobral, S. M. Andrade, S. Costa, 2008, Biophysical chemistry.

Effects of normal and reverse micellar environment on the spectral properties, isomerization and aggregation of a hydrophilic cyanine dye

S. Costa, A. Tatikolov, 2001 .

Aggregation Kinetics of Meso-tetrakis(4-sulfonatophenyl) Porphine in the Presence of Proteins: Temperature and Ionic Strength Effects

S. M. Andrade, S. Costa, 2002, Journal of Fluorescence.

Core-Assisted Formation of Porphyrin J-Aggregates in pH-Sensitive Polyelectrolyte Microcapsules Followed by Fluorescence Lifetime Imaging Microscopy.

S. M. Andrade, S. Costa, Vanda Vaz Serra, 2017, Langmuir : the ACS journal of surfaces and colloids.

Photophysics and photochemistry of hydrophilic cyanine dyes in normal and reverse micelles

S. Costa, A. Tatikolov, 2002, Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology.

Time-resolved spectra of an intramolecular exciplex

K. Ghiggino, M. Prieto, S. Costa, 1980 .

Electric polarization effects on the electronic spectral shift of centrosymmetric compounds

A. J. Sobral, A. Gonsalves, S. Costa, 2004 .

Rhodamine 3B+ ClO4− electronic transitions: reaction field and vibrational structure

S. Costa, J. Ferreira, 2001 .

Kinetics of the electron transfer reaction between 3ZnTPP* and methyl viologen in lecithin vesicles studied by global analysis

S. Costa, P. J. Coutinho, 1994 .

Size effect in steady-state and time-resolved luminescence of quantized MoS2 particle colloidal solutions

S. Costa, R. Khairutdinov, N. Rubtsova, 1996 .

Charge and energy transfer processes in excited aminoesters

M. Prieto, S. Costa, 1983 .

Fluorescence quenching of chlorophyll-a in non-ionic micelles. Effect of micellar and quencher concentrations on the static and dynamic quenching parameters

S. Costa, M. I. Viseu, 1993 .

Near diffusion controlled photokinetics in aromatic ester—aliphatic amine systems

S. Costa, A. Maçanita, 1979 .

Complexation of polymethine dyes with human serum albumin: a spectroscopic study.

S. Costa, A. Tatikolov, 2004, Biophysical chemistry.

Solvent effects on the vibronic structure of S1←S0 transition of Rhodamine 3B

S. Costa, J. Ferreira, 2001 .

Geminate recombination kinetics of triplet radical ion pairs on silica studied by diffuse reflectance laser flash photolysis

S. Costa, P. Levin, L. F. V. Ferreira, 1992 .

Activated radiationless decay of rhodamine-3B: nonequilibrium polarization effects in viscous solvents.

S. Costa, J. Ferreira, 2004, The Journal of chemical physics.

Diffusion coefficients of tetrazolium blue in homogeneous and micellar solutions

S. Costa, C. A. N. Castro, M. I. Viseu, 1991 .

Synthesis of flexible dimeric meso-tetrakis-porphyrins

A. J. Sobral, S. Costa, M. Ramos, 2007 .

Conformational changes of beta-lactoglobulin in sodium bis(2-ethylhexyl) sulfosuccinate reverse micelles. A fluorescence and CD study.

S. M. Andrade, S. Costa, M. I. Viseu, 2004, European journal of biochemistry.

Incorporation of β-lactoglobulin in monolayers of dioctadecyldimethylammonium bromide studied by Brewster angle microscopy

S. M. Andrade, S. Costa, R. Romão, 2003 .

A steady-state fluorescence study of cutinase microencapsulated in AOT reversed micelles at optimal stability conditions

M. Aires-Barros, J. Cabral, S. Costa, 1999, Biotechnology Letters.

Thermal unfolding of proteins at high pH range studied by UV absorbance.

M. Aires-Barros, J. Cabral, S. Costa, 1997, Journal of biochemical and biophysical methods.

Structural Effect of Reversed Micelles of AOT over a Recombinant Cutinase from Fusarium solani pisi

S. Costa, J. Cabral, E. Melo, 1995, Annals of the New York Academy of Sciences.

Activationless nonradiative decay in rhodamines: Role of NH and lower frequency vibrations in solvent kinetic isotope effects

S. Costa, J. Ferreira, 2006 .

Molecular dynamics simulations of porphyrin-dendrimer systems: toward modeling electron transfer in solution.

J. Lopes, S. Costa, P. Paulo, 2008, The journal of physical chemistry. B.

Lipophilic porphyrin microparticles induced by AOT reverse micelles: a fluorescence lifetime imaging study.

A. J. Sobral, S. Costa, Sílvia M B Costa, 2006, Biophysical chemistry.

Kinetics of Intersystem Electron Transfer within Triplet Radical Ion Pairs on Silica Studied by Diffuse-Reflectance Laser Flash Photolysis. Bell-Shaped Energy Gap Dependence on the Surface

S. Costa, P. Levin, L. F. V. Ferreira, 1995 .

Translational and Rotational Motions of Albumin Sensed by a Non-Covalent Associated Porphyrin Under Physiological and Acidic Conditions: A Fluorescence Correlation Spectroscopy and Time Resolved Anisotropy Study

A. Visser, J. Borst, S. M. Andrade, 2008, Journal of Fluorescence.

Self-Aggregation of Lipophilic Porphyrins in Reverse Micelles of Aerosol OT

A. Gonsalves, S. Costa, D. Togashi, 2004 .

Reorganization of self-assembled dipeptide porphyrin J-aggregates in water-ethanol mixtures.

M. Neves, J. Cavaleiro, S. M. Andrade, 2012, The journal of physical chemistry. B.

Delayed Fluorescence Induced by Molecular Oxygen Quenching of Zinc Tetraphenylporphyrin Triplets at Gas/Solid Interfaces of Silica and Zeolite

F. R. Ribeiro, S. Costa, P. Levin, 1997 .

The near-mid-IR HOMO-LUMO gap in amide linked porphyrin-rhodamine dyads.

M. Neves, M. Faustino, J. Cavaleiro, 2013, Chemical communications.

Fluorescence quenching of pyrene by N-hexadecyl pyridinium chloride in mixed anionic micelles

M. M. Velázquez, S. Costa, 1990 .

Gold Nanoparticles in Core–Polyelectrolyte–Shell Assemblies Promote Large Enhancements of Phthalocyanine Fluorescence

S. Costa, P. Paulo, Raquel Teixeira, 2015 .

Light scattering study of water-in-oil AOT microemulsions with poly(oxy)ethylene

M. Almgren, W. Brown, S. Costa, 2000 .

Tetrakis(4-sulfonatophenyl)porphyrin fluorescence as reporter of human serum albumin structural changes induced by guanidine hydrochloride

S. M. Andrade, S. Costa, 2011 .

Tip-Specific Functionalization of Gold Nanorods for Plasmonic Biosensing: Effect of Linker Chain Length.

M. Orrit, P. Zijlstra, S. Costa, 2017, Langmuir : the ACS journal of surfaces and colloids.

Anchoring of Gold Nanoparticles on Graphene Oxide and Noncovalent Interactions with Porphyrinoids

M. Neves, S. M. Andrade, S. Costa, 2015 .

Novel pH tunable fluorescent sensor with dual recognition mode

S. Costa, J. Ferreira, Z. Wen, 2008 .

Fluorescence lifetime imaging microscopy and fluorescence resonance energy transfer from cyan to yellow fluorescent protein validates a novel method to cluster proteins on solid surfaces.

C. Madeira, S. M. Andrade, S. Costa, 2009, Journal of biomedical optics.

Diffuse-reflectance laser photolysis studies of geminate recombination kinetics of triplet radical pairs adsorbed on microcrystalline cellulose

S. Costa, P. Levin, L. F. V. Ferreira, 1990 .

A study of fluorescence quenching in homomicelles and mixed micelles analyzed by diffusion-controlled and fractal reaction model kinetics

M. M. Velázquez, S. Costa, 1992 .

Structural Transitions in a Bicationic Amphiphile System Studied by Light-Scattering, Conductivity, and Surface Tension Measurements

M. M. Velázquez, S. Costa, M. I. Viseu, 2000 .

Thermal isomerization of a symmetrical carbocyanine molecule: charge transfer aspects

S. Costa, C. Laia, 2002 .

Solvatochromism and thermochromism of the electronic spectra of an indocarbocyanine dye

S. Costa, C. Laia, 2001 .

Excited-state Solvation of Rhodamines : Dielectric and Specific Contributions

S. Costa, J. Ferreira, 2008 .

Fluorescent dye nano-assemblies by thiol attachment directed to the tips of gold nanorods for effective emission enhancement.

D. Prazeres, S. Costa, P. Paulo, 2020, Nanoscale.

Photochemistry of a surfactant stilbene in organized media: a probe for hydrophobic sites in micelles, vesicles, and other assemblies

David G. Whitten, D. Whitten, S. Costa, 1980 .

Photochemical reactions in organized assemblies. 37. Photochemistry and photophysics of surfactant trans-stilbenes in supported multilayers and films at the air-water interface

P. E. Brown, L. Pedersen, D. Whitten, 1985 .