Substituent effects on the pH-dependent multiequilibria of flavylium salt analogs of anthocyanins
JOURNAL OF PHYSICAL ORGANIC CHEMISTRY, 24, 1201-1208 12 2011
Adilson Alves de Freitas , Luis G. Dias , A. L. Maçanita , Frank H. Quina

Picosecond Dynamics of Proton Transfer of a 7-Hydroxyflavylium Salt in Aqueous-Organic Solvent Mixtures
JOURNAL OF PHYSICAL CHEMISTRY A, 115, 10988-10995 10 2011
Adilson Alves de Freitas , Frank H. Quina , A. L. Maçanita

Characterization of the Singlet and Triplet Excited States of 3-Chloro-4-methylumbelliferone
JOURNAL OF PHYSICAL CHEMISTRY A, 115, 8392-8398 8 2011
J. Sergio Seixas de Melo , Catarina Cabral , Joao C. Lima , A. L. Maçanita

Viscosity Dependence of Intramolecular Excimer Formation with 1,5-Bis(1-pyrenylcarboxy)pentane in Alkane Solvents as a Function of Temperature
JOURNAL OF PHYSICAL CHEMISTRY A, 115, 3183-3195 4 2011
A. L. Maçanita , Klaas A. Zachariasse

Thermal Unfolding Kinetics of Ubiquitin in the Microsecond-to-Second Time Range Probed by Tyr-59 Fluorescence
JOURNAL OF PHYSICAL CHEMISTRY B, 114, 9912-9919 8 2010
Melinda Noronha , Hana Gerbelova , Tiago Q. Faria , Daniel N. Lund , D. Alastair Smith , Helena Santos , A. L. Maçanita

How to Change the Aggregation in the DNA/Surfactant/Cationic Conjugated Polyelectrolyte System through the Order of Component Addition: Anionic versus Neutral Surfactants
LANGMUIR, 26, 11705-11714 7 2010
Maria Monteserin , Hugh D. Burrows , Ricardo Mallavia , Roberto E. Di Paolo , A. L. Maçanita , Maria J. Tapia

Picosecond Dynamics of the Prototropic Reactions of 7-Hydroxyflavylium Photoacids Anchored at an Anionic Micellar Surface
JOURNAL OF PHYSICAL CHEMISTRY A, 114, 4188-4196 4 2010
Adilson Alves de Freitas , Frank H. Quina , A C Fernandes , A. L. Maçanita

Self-Organization and Excited-State Dynamics of a Fluorene-Bithiophene Copolymer (F8T2) in Solution
MACROMOLECULES, 43, 765-771 1 2010
Rita Franca Rodrigues , Ana Charas , Jorge Morgado , A. L. Maçanita

Synthesis, Structure, and Photophysical Characterization of Blue-Green Luminescent Zinc Complexes Containing 2-Iminophenanthropyrrolyl Ligands
INORGANIC CHEMISTRY, 48, 11176-11186 12 2009
Clara S. B. Gomes , Pedro T. Gomes , M. Teresa Duarte , Roberto E. Di Paolo , A. L. Maçanita , Maria Jose Calhorda

Alternating Binaphthyl-Thiophene Copolymers: Synthesis, Spectroscopy, and Photophysics and Their Relevance to the Question of Energy Migration versus Conformational Relaxation
MACROMOLECULES, 42, 1710-1719 3 2009
Joao Pina , J. Seixas de Melo , Hugh D. Burrows , A. L. Maçanita , F. Galbrecht , T. Buennagel , U. Scherf

Photodynamics of a PV Trimer in High-Viscosity Solvents and in PMMA Films: A New Insight into Energy Transfer versus Conformational Relaxation in Conjugated Polymers
CHEMPHYSCHEM, 10, 448-454 2 2009
Roberto E. Di Paolo , Hugh D. Burrows , Jorge Morgado , A. L. Maçanita

Ultrafast Internal Conversion in a Model Anthocyanin-Polyphenol Complex: Implications for the Biological Role of Anthocyanins in Vegetative Tissues of Plants
CHEMISTRY-A EUROPEAN JOURNAL, 15, 1397-1402 2009
Rita Franca Rodrigues , Palmira Ferreira da Silva , Karina Shimizu , Adilson Alves de Freitas , Sergey A. Kovalenko , Nikolaus P. Ernsting , Frank H. Quina , A. L. Maçanita

Photochemistry of anthocyanins and their biological role in plant tissues
PURE AND APPLIED CHEMISTRY, 81, 1687-1694 9 2009
Frank H. Quina , Jr. Moreira , C Vautier-Giongo , Daniel Rettori , Rita Franca Rodrigues , Adilson Alves de Freitas , Palmira F. Silva , A. L. Maçanita

Enhancing the fluorescence of tyr-59 in ubiquitin by blocking proton transfer
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 11, 3580-3583 2009
Melinda Noronha , Hana Gerbelova , Tiago Q. Faria , Maria Manuel Sampaio , Rainer Rudolph , A. L. Maçanita , Helena Santos

Fluorescence Lifetimes of Tyrosine Residues in Cytochrome c as Local Probes to Study Protein Unfolding
JOURNAL OF PHYSICAL CHEMISTRY B, 113, 4466-4474 4 2009
Melinda Noronha , Raquel Santos , Emanuele Paci , Helena Santos , A. L. Maçanita

Interaction between Poly(9,9-bis(6 -N,N,N-trimethylammonium)hexyl)fluorene phenylene) Bromide and DNA as Seen by Spectroscopy, Viscosity, and Conductivity: Effect of Molecular Weights and DNA Secondary Structure
JOURNAL OF PHYSICAL CHEMISTRY B, 113, 1294-1302 2 2009
Maria Monteserin , Hugh D. Burrows , Artur J. M. Valente , Ricardo Mallavia , Roberto E. Di Paolo , A. L. Maçanita , Maria J. Tapia

Picosecond Structural Relaxation of Abietic Acid Based Amine End Capped Para-Phenylenevinylene Trimers in Solution
CHEMPHYSCHEM, 9, 2214-2220 10 2008
Roberto E. Di Paolo , Barbara Gigante , Maria A. Esteves , Natercia Pires , Celia Santos , Maria H. Lameiro , Joao Seixas de Melo , Hugh D. Burrows , A. L. Maçanita

Conformational relaxation of p-phenylenevinylene trimers in solution studied by picosecond time-resolved fluorescence
CHEMPHYSCHEM, 8, 2657-2664 12 2007
Roberto E. Di Paolo , Joao Seixas de Melo , Joao Pina , Hugh D. Burrows , Jorge Morgado , A. L. Maçanita

Tracking local conformational changes of ribonuclease A using picosecond time-resolved fluorescence of the six tyrosine residues
BIOPHYSICAL JOURNAL, 92, 4401-4414 6 2007
Melinda Noronha , Joao C. Lima , Emanuele Paci , Helena Santos , A. L. Maçanita

Dynamics of short as compared with long poly(acrylic acid) chains hydrophobically modified with pyrene, as followed by fluorescence techniques
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 9, 1370-1385 2007
J. Seixas de Melo , Telma Costa , Alexandra Francisco , A. L. Maçanita , Sandra Gago , Isabel S. Goncalves