Conference Presentations

Oral Presentations

26 | Paula Nabais, Mara Santo, Adelaide Clemente, Maria João Melo, and Dominique Cardon, “Yellow Dyes of Historical Importance. V. A handful of weld yellows from the 18th century recipe books of French master dyers Antoine Janot and Paul Gout”, 41st Meeting of Dyes in History and Archaeology (DHA 39), 11-13 October 2022, Visby, Sweden.

25 | Rita Salvado, and Paula Nabais, “Immersion into the Royal Textile Factory Dye-house, a Portuguese manufacture of the 18th century”, 29th CIETA Congress “Excavations and Discoveries”, 3-6 October 2022, Zurich, Switzerland.

24 | Maria João Melo and Paula Nabais, “Uma paleta iluminada para as bíblias monumentais do mosteiro de Santa Cruz”, A escrita e a arte da iluminura medieval, Porto, May 2022.

23 | Maria João Melo and Paula Nabais, “The colors of Portuguese Romanesque Bibles: results of interdisciplinary research”, Romanic Bibles Coloquia, Lisbon, March 2022.

22 | Maria João Melo and Paula Nabais, “The brightest colour of all in medieval illuminations”, Shades of Purple Conference, 25-26 November 2021, Zurich, Switzerland.

21 | Paula Nabais, and Maria João Melo, “A new advanced technique for the characterization of dyes in ancient textiles: microspectrofluorimetry”, Advanced Analytical Techniques for Textiles, Online Workshops for COST ACTION EuroWeb, 8 November 2021.

20 | Paula Nabais, and Maria João Melo, “The world of natural dyes”, Fiar, Tecer Tingir & Coser: perspectivas interdisciplinares sobre os têxteis históricos em Portugal, 17 September 2021, Lisbon, Portugal.

19 | Vanessa Otero, and Paula Nabais, “Colors in Art: Past, Present and Future”, 8th International Color & Coating Congress (ICCC 2021), 13-14 October 2021, Online.

18 | Márcia Vieira, Paula Nabais, and Maria João Melo, “A New World of Possibilities: Handheld Raman spectrometer for the in situ analysis of Medieval Illuminated Manuscripts”, Science and Sensitivity, 21-22 June 2021, Rome, Italy.

17 | Paula Nabais, Maria João Melo, João A. Lopes, Márcia Vieira, Rita Castro, and Aldo Romani, “Organic colorants as markers for a chronology and geography of medieval scriptoria and workshops”, 39th Meeting of Dyes in History and Archaeology (DHA 39), 15-16 October 2020, Sibiu, Romania.

16 | Márcia Vieira, Paula Nabais, Graça Videira Lopes, Laura Fernandéz, and Maria João Melo, “Brazilwood lake pigments in the illuminated manuscripts of Alfonso X: their first use in medieval European manuscripts?”, 39th Meeting of Dyes in History and Archaeology (DHA 39), 15-16 October 2020, Sibiu, Romania.

15 | Maria João Melo, and Paula Nabais, “As Ciências da Conservação na Salvaguarda do Património Cultural: das tintas de escrita medievais até à descoberta da molécula por trás de um azul milenar”, Conference ANTECIPA, 15 July 2020, Brazil.

14 | Paula Nabais, Maria João Melo, Natércia Teixeira, Rafael Díaz Hidalgo, Victor Freitas, and Fernando Pina, “Polyphenolic characterization of iron-gall inks through the use of historically accurate reconstructions”, 3rd International Caparica Christmas Conference on Translational Chemistry, 2-5 December 2019, Caparica, Portugal. Shotgun presentation.

13 | Paula Nabais, Maria João Melo, Adelaide Clemente, and Maria Conceição Oliveira, “Tangled Threads: reflection on the historical recipes on folium and orchil purple dyes and their identification on medieval manuscripts”, ICOM-CC Working group meeting ATSR: Reflecting on Reconstructions, 26-27 September 2019, Cologne, Germany.

12 | Ana Luís, Paula Nabais, Rita Araújo, Márcia Vieira, Maria João Melo, Rafael Javier Díaz Hidalgo, Ricardo Córdoba, Natércia Teixeira, and Lourdes Martín, “A arte de fazer tintas de escrita medievais no Al-Andalus: o que nos dizem as frontes escritas e o que nos traz a evidência experimental”, XIII Congreso Internacional de Historia del Papel en la Península Ibérica, 12-14 June 2019, Málaga, Spain.

11 | Paula Nabais, Maria João Melo, and Graça Videira Lopes, “Art, Literature, and Chemistry: New Approaches on Ajuda’s Songbook”, 54th International Congress on Medieval Studies, 9-12 May 2019, Kalamazoo, Michigan, USA.

10 | Natércia Teixeira, Paula Nabais, Nuno Mateus, Maria João Melo, and Victor de Freitas, “Estudo dos compostos fenólicos presentes em tintas ferrogálhicas medievais obtidas através do uso de reconstruções históricas”, XXIV Encontro Luso Galego de Química, Química e Sociedade, 21-23 November 2018, Porto, Portugal.

9 | Paula Nabais, Eva M. Angelin, Márcia Vieira, Maria João Melo, Lourdes Martín, and Marta Sameño, “Organic reds in Al-Andaluz: a study on medieval Islamic manuscripts”, 37th Meeting of Dyes in History and Archaeology (DHA 37), 25-26 October 2018, Lisbon, Portugal.

8 | Paula Nabais, Maria João Melo, Dominique Cardon, Adelaide Clemente, and Maria Conceição Oliveira, “In search of lost yellows: identification and occurrence of ancient polyphenol yellows in Portuguese plant, part II”, 37th Meeting of Dyes in History and Archaeology (DHA 37), 25-26 October 2018, Lisbon, Portugal.

7 | Maria João Melo, Paula Nabais, Fernando Pina, Natércia Teixeira, and Victor de Freitas, “Advances on iron gall inks: revealing the complex polyphenol systems used to write the medieval book”, International Conference on Polyphenols, 16-20 July 2018, Madison, US.

6 | Paula Nabais, “A Iluminura Medieval, o Códice e a sua Conservação: desafios às ciências moleculares, humanidades e sociedade”, Interdisciplinary Conference on Iberian Manuscripts, 19-21 October 2017, Lisbon, Portugal.

5 | Maria João Melo, Paula Nabais, Fernando Pina, Natércia Teixeira, and Victor de Freitas, “The dark-side of polyphenols in medieval manuscripts: a study on iron gall inks”, 36th Meeting of Dyes in History and Archaeology (DHA 36), 26-28 October 2017, Hampton Court, UK.

4 | Maria João Melo, Paula Nabais, Rita Araújo, Rita Castro, Tatiana Vitorino, and Vanessa Otero, “L’usage de l’alun dans les pigments (12e-16e siècles)”, Rencontre sur Les usages de l’alun dans les sociétés occidentales à la fin du Moyen Âge: approche interdisciplinaire, 2-3 February 2017, Ghent, Belgium.

3 | Paula Nabais, Maria João Melo, Maria Guimarães, Rita Araújo, Rita Castro, Maria Conceição Oliveira, Isabella Whitworth, and Adelaide Clemente, “Revisiting the Purples of Chrozophora Tinctoria”, 35th Meeting of Dyes in History and Archaeologyn(DHA 35), 5-8 October 2016, Pisa, Italy.

2 | Maria João Melo, Paula Nabais, Rita Castro, Tatiana Vitorino, and Graça Videira Lopes, “A medieval illuminated manuscript “Ajuda Songbook”: what the identification of organic dyes in the colour paints can tell us?”, 34th Meeting of Dyes in History and Archaeology (DHA 34), 21-24 October 2015, Thessaloniki, Greece.

1 | Paula Nabais, David Buti, Chiara Grazia, Aldo Romani, Antonio Sgamellotti, and Costanza Miliani, “Spectroscopic Characterization of Natural Dyes for their Non-invasive Identification on Pre-Columbian Codizes: the Maya Yellow”, 3rd International Congress on Chemistry for Cultural Heritage (CHEMCH), 1-5 July 2014, Vienna, Austria.

Poster Presentations

17 | Paula Nabais, “Beyond Colour: the study of historically accurate reconstructions for a better understanding of colour in textiles”, 8th Purpureae Vestes, 19-21 October 2022, Athens, Greece

16 | Tiago Veiga, Artur Moro, Paula Nabais, Vanessa Otero, Márcia Vilarigues, and Maria João Melo, “Finding madder reds in 19th early 20th century oil paintings”, 41st Meeting of Dyes in History and Archaeology (DHA 39), 11-13 October 2022, Visby, Sweden.

15 | Mila Crippa, Maria João Melo, and Paula Nabais, “Ambiguous instructions and missing information: challenges in decoding medieval recipe books for the reconstructions of lac dye paints and their full molecular characterisation”, Gordon Research Conference on Scientific Methods in Cultural Heritage Research, 10-15 July 2022, Les Diablerets, Switzerland.

14 | Paula Nabais, Mara Santo, Maria João Melo, Dominique Cardon, Adelaide Clemente, and Rita Salvado, “Disclosing Lost yellows: Science and Art for a Sustainable Preservation of Natural Yellows in Cultural Heritage”, Gordon Research Conference on Scientific Methods in Cultural Heritage Research, 10-15 July 2022, Les Diablerets, Switzerland.

13 | Maria Carolina Veneno, Paula Nabais, Vanessa Otero, Adelaide Clemente, and Maria João Melo, “Back from the past: historical and experimental research of Winsor & Newton 19th century recipes for Reseda luteola”, 39th Meeting of Dyes in History and Archaeology (DHA 39), 15-16 October 2020, Sibiu, Romania.

12 | Vanessa Otero, Rafael Javier Díaz Hidalgo, Hermine Grigoryan, Paula Nabais, Natércia Teixeira, and Maria João Melo, “Uncovering al-Qalalūsī 13th-century treatise on ink making: new contributions to the study of medieval iron gall inks”, 39th Meeting of Dyes in History and Archaeology (DHA 39), 15-16 October 2020, Sibiu, Romania.

11 | Paula Nabais, Maria João Melo, Natércia Teixeira, Rafael Díaz Hidalgo, Victor Freitas, and Fernando Pina, “Polyphenolic characterization of iron-gall inks through the use of historically accurate reconstructions”, 3rd International Caparica Christmas Conference on Translational Chemistry, 2-5 December 2019, Caparica, Portugal.

10 | Natércia Teixeira, Alexandre Silva, Catarina Henriques, Filipa Silva Campos, Inês Costa, Paula Nabais, Nuno Mateus, Fernando Pina, Maria João Melo, and Victor de Freitas, “Disclosing medieval Iberian iron-gall inks recipes through the use of historically accurate reconstructions”, 38th Meeting of Dyes in History and Archaeology (DHA 38), 7-9 November 2019, Amsterdam, Holland.

9 | Natércia Teixeira, Paula Nabais, Nuno Mateus, Maria João Melo, and Victor de Freitas, “Enlightening the phenolic compounds present in iron-gall inks obtained through the use of historically accurate reconstructions”, 37th Meeting of Dyes in History and Archaeology (DHA 37), 25-26 October 2018, Lisbon, Portugal.

8 | Samaneh Sharif, Maria João Melo, Paula Nabais, Adelaide Clemente, and Maria Conceição Oliveira, “Identification and characterization of natural yellow dye sources of Persian carpet using high pressure liquid chromatography-tandem mass spectrometry HPLC-MS”, 37th Meeting of Dyes in History and Archaeology (DHA 37), 25-26 October 2018, Lisbon, Portugal.

7 | Rafael J. Díaz Hidalgo, Ana Luís, Paula Nabais, Maria João Melo, and Ricardo Córdoba, “Archaeological experimentation of Iberian iron-gall ink recipes from the 15th-17th century”, 37th Meeting of Dyes in History and Archaeology (DHA 37), 25-26 October 2018, Lisbon, Portugal.

6 | Maria João Melo, Maria Adelaide Miranda, Maria Conceição Casanova, Paula Nabais, and Rita Araújo, “Treating the untreated. Assessing safeness and effectiveness of current preservation treatments for medieval manuscript illuminations”, Gordon Research Conference on Scientific Methods in Cultural Heritage Research, 22-27 July 2018, Castelldefels, Spain.

5 | Paula Nabais, Maria João Melo, João A. Lopes, Tatiana Vitorino, Artur Neves, Rita Castro, Aldo Romani, and Costanza Miliani, “Chemometrics hand in hand with microspectrofluorimetry for the safeguard of dyes and lake pigments in artworks”, Gordon Research Conference on Scientific Methods in Cultural Heritage Research, 22-27 July 2018, Castelldefels, Spain.

4 | Paula Nabais, Maria João Melo, Samaneh Sharif, Adelaide Clemente, and Maria Conceição Oliveira, “In search of “lost yellows”: identification and occurrence of polyphenol yellows in Portuguese plants”, 36th Meeting of Dyes in History and Archaeology (DHA 36), 26-28 October 2017, Hampton Court, UK.

3 | Rita Araújo, Paula Nabais, Conceição Casanova, and Maria João Melo, “The Degradation of Silver Paints in Medieval Manuscripts”, Manuscripts in the Making: Art and Science, 8-10 December 2016, University of Cambridge, UK.

2 | Paula Nabais, Maria João Melo, Maria Guimarães, Isabella Whitworth, Soraia Teixeira, and Artur Neves, “A Closer Look into the Making of Lake Pigments for Medieval Manuscripts: Exploring Microspectrofluorimetry”, Manuscripts in the Making: Art and Science, 8-10 December 2016, University of Cambridge, UK.

1 | Rita Araújo, Maria João Melo, Paula Nabais, Tatiana Vitorino, Conceição Oliveira, Conceição Casanova, and Ana Lemos, “Characterization of Dyes used in Textile Bookbinding”, 35th Meeting of Dyes in History and Archaeology (DHA 35), 5-8 October 2016, Pisa, Italy.