Publications

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2015
Gago, S, Basilio N, Moro AJ, Pina F.  2015.  Flavylium based dual photochromism: addressing cis-trans isomerization and ring opening-closure by different light inputs, 2015. Chemical Communications. 51(34):7349-7351. Abstract
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Vitorino, T, Casini A, Cucci C, Melo MJ, Picollo M, Stefani L.  2015.  Non-invasive identification of traditional red lake pigments in fourteenth to sixteenth centuries paintings through the use of hyperspectral imaging technique, 2015. Applied Physics a-Materials Science & Processing. 121(3):891-901. Abstract
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Costa, D, Galvao AM, Di Paolo RE, Freitas AA, Lima JC, Quina FH, Macanita AL.  2015.  Photochemistry of the hemiketal form of anthocyanins and its potential role in plant protection from UV-B radiation, 2015. Tetrahedron. 71(20):3157-3162. Abstract
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Nascimento, SMC, Linhares JMM, Joao CAR, Amano K, Montagner C, Melo MJ, Vilarigues M, de Freitas MH, Alfaro C, Bailao A.  2015.  The preferred chromatic composition of unfamiliar paintings is similar to original, 2015. Perception. 44:134-134. Abstract
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Santos, MM, Marques I, Carvalho S, Moiteiro C, Felix V.  2015.  Recognition of bio-relevant dicarboxylate anions by an azacalix 2 arene 2 triazine derivative decorated with urea moieties, 2015. Organic & Biomolecular Chemistry. 13(10):3070-3085. Abstract
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Pikramenou, Z, Weinstein J, Pan Q, Lewis F, Bassani DM, Wurthner F, Moucheron C, Slota M, Diaz-Moscoso A, Karlsson J, Basilio N, Adams D, Scandola F, Bohne C, Lemon C, Campagna S, Rohacova J, Ohashi K, Plotz PA, Monti F, Kelly JM, Keane P, Gibson E, Lemercier G, Ruggi A, Cucinotta F, Gust D, Bradberry S, Vos J, Pistolis G, Mauro M, Tuite E, De Cola L, Ceroni P, Maneiro M, Galoppini E, Gunnlaugsson T.  2015.  Self-organization of photo-active nanostructures: general discussion, 2015. Faraday Discussions. 185:529-548. Abstract
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Pereira, CCL, Pereira LCJ, Leal JP, Laia CAT, Monteiro B.  2015.  Dy, Tb, Gd and Eu complexes with low melting point and magnetic behavior. Poyhedron. 91:42-46.
Ferraz, R, Costa-Rodrigues J, Fernandes MH, Santos MM, Marrucho IM, Rebelo LPN, Prudencio C, Noronha JP, Petrovski Z, Branco LC.  2015.  Antitumor Activity of Ionic Liquids Based on Ampicillin. Chemmedchem. 10:1480-1483., Number 9 Abstract
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Mendo, AS, Figueiredo S, Roma-Rodrigues C, Videira PA, Ma Z, Diniz M, Larguinho M, Costa PM, Lima JC, Pombeiro AJL, Baptista PV, Fernandes AR.  2015.  Characterization of antiproliferative potential and biological targets of a copper compound containing 4'-phenyl terpyridine. Journal of Biological Inorganic Chemistry. 20:935-948., Number 6 Abstract
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Cruz, L, Basilio N, Mateus N, Pina F, de Freitas V.  2015.  Characterization of Kinetic and Thermodynamic Parameters of Cyanidin-3-glucoside Methyl and Glucuronyl Metabolite Conjugates. Journal of Physical Chemistry B. 119:2010-2018., Number 5 Abstract
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Moro, AJ, Rome B, Aguilo E, Arcau J, Puttreddy R, Rissanen K, Lima JC, Rodriguez L.  2015.  A coumarin based gold(I)-alkynyl complex: a new class of supramolecular hydrogelators. Organic & Biomolecular Chemistry. 13:2026-2033., Number 7 Abstract
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Coutinho, IB, Freitas A, Macanita AL, Lima JC.  2015.  Effect of water content on the acid-base equilibrium of cyanidin-3-glucoside. Food Chemistry. 172:476-480. Abstract
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Nascimento, SMC, Linhares JMM, Joao CAR, Amano K, Montagner C, Melo MJ, Vilarigues M.  2015.  Estimating the Colors of Paintings. Computational Color Imaging, Cciw 2015. 9016(Tremeau, A., Schettini, R., Tominaga, S., Eds.).:236-242. Abstract
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Gago, S, Basilio N, Moro AJ, Pina F.  2015.  Flavylium based dual photochromism: addressing cis-trans isomerization and ring opening-closure by different light inputs. Chemical Communications. 51:7349-7351., Number 34 Abstract
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Costa, D, Galvao AM, Di Paolo RE, Freitas AA, Lima JC, Quina FH, Macanita AL.  2015.  Photochemistry of the hemiketal form of anthocyanins and its potential role in plant protection from UV-B radiation. Tetrahedron. 71:3157-3162., Number 20 Abstract
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2014
Arcau, J, Andermark V, Aguiló E, Gandioso A, Moro A, Cetina M, Lima JC, Rissanen K, Ottb I, Rodríguez L.  2014.  Luminescent alkynyl-gold(I) coumarin derivatives and their biological activity. Dalton Transactions. 43:4426-4436. Abstract

Luminescent alkynyl-gold(I) coumarin derivatives and their biological activity

The synthesis and characterization of three propynyloxycoumarins are reported in this work together with the formation of three different series of gold(I) organometallic complexes. Neutral complexes are constituted by water soluble phosphines (PTA and DAPTA) which confer water solubility to them. The X-ray crystal structure of 7-(prop-2-in-1-yloxy)-1-benzopyran-2-one and its corresponding dialkynyl complex is also shown and the formation of rectangular dimers for the gold derivative in the solid state can be observed. A detailed analysis of the absorption and emission spectra of both ligands and complexes allows us to attribute the luminescent behaviour to the coumarin organic ligand. Moreover, the presence of the gold(I) metal atom seems to be responsible for an increase of coumarin phosphorescence emission. The biological activity of the complexes showed that the anionic complexes triggered strong cytotoxic effects in two different cell lines whereas the neutral gold alkynyl complexes led to lower effects against tumor cell growth. Thioredoxin reductase (TrxR) inhibition was very strong in the case of the neutral complexes (IC50 values below 0.1 μM) but moderate for the anionic complexes (IC50 values above 0.8 μM).

Miguel, C, Pinto JV, Clarke M, Melo MJ.  2014.  The alchemy of red mercury sulphide: The production of vermilion for medieval art. Dyes and Pigments. 102:210-217. Abstract
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Barreira, G, Ferreira ASD, Vidinha P, Cabral JMS, Martinho JMG, Lima JC, Cabrita EJ, Barreiros S.  2014.  Assessing diffusion in enzyme loaded sol-gel matrices. Rsc Advances. 4:25099-25105., Number 48 Abstract
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Otero, V, Sanches D, Montagner C, Vilarigues M, Carlyle L, Lopes JA, Melo MJ.  2014.  Characterisation of metal carboxylates by Raman and infrared spectroscopy in works of art. Journal of Raman Spectroscopy. 45:1197-1206., Number 11-12 Abstract
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Moro, AJ, Pana A-M, Cseh L, Costisor O, Parola J, Cunha-Silva L, Puttreddy R, Rissanen K, Pina F.  2014.  Chemistry and Photochemistry of 2,6-Bis(2-hydroxybenzilidene)cyclohexanone. An Example of a Compound Following the Anthocyanins Network of Chemical Reactions. Journal of Physical Chemistry A. 118:6208-6215., Number 32 Abstract
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Sousa, A, Cabrita L, Araujo P, Mateus N, Pina F, de Freitas V.  2014.  Color stability and spectroscopic properties of deoxyvitisins in aqueous solution. New Journal of Chemistry. 38:539-544., Number 2 Abstract
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Sousa, A, Cabrita L, Araujo P, Mateus N, Pina F, de Freitas V.  2014.  Color stability and spectroscopic properties of deoxyvitisins in aqueous solution. New Journal of Chemistry. 38:539-544., Number 2 Abstract
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Castro, R, Pozzi F, Leona M, Melo MJ.  2014.  Combining SERS and microspectrofluorimetry with historically accurate reconstructions for the characterization of lac dye paints in medieval manuscript illuminations. Journal of Raman Spectroscopy. 45:1172-1179., Number 11-12 Abstract
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Reimao-Pinto, MM, Cordeiro A, Almeida C, Pinheiro AV, Moro A, Lima JC, Baptista PV.  2014.  Dual-color control of nucleotide polymerization sensed by a fluorescence actuator. Photochemical & Photobiological Sciences. 13:751-756., Number 5 Abstract
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Oliveira, J, Bras NF, da Silva MA, Mateus N, Parola JA, de Freitas V.  2014.  Grape anthocyanin oligomerization: A putative mechanism for red color stabilization? Phytochemistry. 105:178-185. Abstract
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