Search filters

List of works by Maria J. Melo

A 1000-year-old mystery solved: Unlocking the molecular structure for the medieval blue from Chrozophora tinctoria, also known as folium

scientific article published on 17 April 2020

A fluorescent chemosensor for Zn(II). Exciplex formation in solution and the solid state

scientific article

A little key to oxalate formation in oil paints: protective patina or chemical reactor?

scientific article published on 22 February 2018

A photochemical study on the blue dye indigo: from solution to ancient Andean textiles.

scientific article published in September 2008

A spectroscopic study of Brazilwood paints in medieval books of hours

scientific article published in January 2014

A study in mauve: unveiling Perkin's dye in historic samples.

scientific article

Brazilwood reds: the (photo)chemistry of brazilin and brazilein

scientific article published on 3 October 2013

Characterisation of metal carboxylates by Raman and infrared spectroscopy in works of art

Characterization and Long-Term Stability of Historical PMMA: Impact of Additives and Acrylic Sheet Industrial Production Processes

scientific article published on 25 September 2020

Characterization of weld (Reseda luteola L.) and spurge flax (Daphne gnidium L.) by high-performance liquid chromatography-diode array detection-mass spectrometry in Arraiolos historical textiles

scientific article

Chemistry and applications of flavylium compounds: a handful of colours

scientific article published on 12 August 2011

Combining infrared spectroscopy with chemometric analysis for the characterization of proteinaceous binders in medieval paints

article

Decision making based on hybrid modeling approach applied to cellulose acetate based historical films conservation

scientific article published on 09 August 2021

Dehydroindigo, the forgotten indigo and its contribution to the color of Maya Blue

scientific article published in February 2010

Excited-State Isomerization of Leuco Indigo

scientific article published on 08 March 2012

Flavylium chromophores as species markers for dragon's blood resins from Dracaena and Daemonorops trees

scientific article published on 7 September 2008

Fucose-containing exopolysaccharide produced by the newly isolated Enterobacter strain A47 DSM 23139

Identification of 7,4'-dihydroxy-5-methoxyflavylium in "Dragon's blood": to be or not to be an anthocyanin

scientific article published in January 2007

Identification of red colorants in van Gogh paintings and ancient Andean textiles by microspectrofluorimetry

article by Ana Claro et al published January 2010 in Journal of Cultural Heritage

Microspectrofluorimetry and chemometrics for the identification of medieval lake pigments

article

Multistate properties of 7-(N,N-diethylamino)-4'-hydroxyflavylium. An example of an unidirectional reaction cycle driven by pH.

scientific article published on 13 September 2004

Ochres and earths: matrix and chromophores characterization of 19th and 20th century artist materials

scientific article

Organic dyes in illuminated manuscripts: a unique cultural and historic record

scientific article

Photochromism of 7-(N,N-diethylamino)-4′-hydroxyflavylium in a water–ionic liquid biphasic system

scientific article published on 08 February 2007

Photophysics of an indigo derivative (keto and leuco structures) with singular properties.

scientific article published in December 2006

Recent insights into the photochemistry of artists' pigments and dyes: towards better understanding and prevention of colour change in works of art.

scientific article

Revisiting Perkin's dye(s): the spectroscopy and photophysics of two new mauveine compounds (B2 and C)

scientific article published on 04 April 2007

Screening and quantification of proteinaceous binders in medieval paints based on μ-Fourier transform infrared spectroscopy and multivariate curve resolution alternating least squares

scholarly article by Sílvia Mas et al published May 2014 in Chemometrics and Intelligent Laboratory Systems

Spectral and photophysical studies of substituted indigo derivatives in their keto forms

scientific article published in November 2006

The use of microspectrofluorimetry for the characterization of lake pigments

scientific article published on 11 August 2007