7aaeee50-2a59-4a34-a208-10fc44bf9434 Laurence Douny Research Associate Humboldt University, Berlin Previous Next All members MEMBER INFORMATION Laurence Douny is a social anthropologist and research associate at the Excellence cluster ‘Matters of Activity. Image Space Material’ at Humboldt University, Berlin. She specializes in the anthropology and history of materials and techniques with a focus on West African wild silks and natural dyes. She is the principal investigator of the project ‘West African wild silks techniques: Preserving Marka-Dafing’s heritage of knowledge’ awarded by the Endangered Material Knowledge Program (EMKP) at The British Museum and funded by Arcadia. ABM CONFERENCES ABM 2023 Steering Committee Art Bio Matters 2023 Conference Explore Full Abstract ABM MEMBER EVENTS ABM Member Conversations - June 2024 Member Conversations Host An interdisciplinary conversation: Chemistry and anthropology insights on wild silk materials Explore PUBLICATIONS + PROJECTS

7f2714e4-7d66-4db5-b474-825105d5d725 Beatrice Behlen Senior Curator, Fashion & Decorative Arts Museum of London London, UK Previous Next All members MEMBER INFORMATION ABM CONFERENCES ABM 2023 Team Presenter Silk, stains and science of a knitted waistcoat: The lab is a foreign country but do they do things differently there? Co-authored with Paula Nabais and Jane Malcolm-Davies. Read the Abstract. Explore Full Abstract ABM MEMBER EVENTS ABM Seminar Series - May 2023 Seminar Series Presenter Silk and Science: Collaborative research into a knitted waistcoat associated with Charles I Explore PUBLICATIONS + PROJECTS

1399ac99-8e9a-4a85-9d0c-73580bfbb85c Daniel Vallejo Postdoctoral fellow Georgia Institute of Technology Atlanta, GA, USA Previous Next All members MEMBER INFORMATION Daniel Vallejo is a postdoctoral fellow in Facundo Fernández’s group at the Georgia Institute of Technology. His interest is to apply his Ph.D. training in structural biology and ion mobility-mass spectrometry methodology development towards the structural and biophysical stability characterization of proteins found in paintings and to develop a community driven database for proteomic analysis of objects of cultural heritage. ABM CONFERENCES ABM 2021 Participant Art Bio Matters 2021 Virtual Conference Explore Full Abstract ABM MEMBER EVENTS PUBLICATIONS + PROJECTS

fef495bf-3a51-4657-93d3-ab9123dc60d1 Elke Cwiertnia Conservation Scientist Rathgen-Forschungslabor (Rathgen Research Laboratory) Staatliche Museen zu Berlin (Berlin State Museum) Berlin, Germany Previous Next All members MEMBER INFORMATION Elke Cwiertnia is a conservation scientist working at the Rathgen-Forschungslabor (Rathgen Research Laboratory) in Berlin. She is specialised in the scientific analysis of cultural heritage objects, its contextualisation and improving conservation treatments. She holds a PhD in analytical science (Newcastle Upon Tyne) and a diploma in art technology, conservation and restoration of cultural heritage (Dresden). Currently, she is working on projects investigating residues in Ancient Egyptian pottery and paint layers from the 19th century. ABM CONFERENCES ABM 2021 Participant Art Bio Matters 2021 Virtual Conference Explore Full Abstract ABM MEMBER EVENTS PUBLICATIONS + PROJECTS

d1d14512-6cae-4f6b-86cb-bd78b7a94007 Rachel Lackner New York, NY, USA Previous Next All members MEMBER INFORMATION ABM CONFERENCES ABM MEMBER EVENTS ABM Seminar Series - April 2024 Seminar Series Presenter Identification of a lichen dye source in a fifteenth century medieval tapestry Explore PUBLICATIONS + PROJECTS Rachel M. Lackner [1], Solenn Ferron [2], Joël Boustie [2], Françoise Le Devehat [2], H. Thorsten Lumbsch [3], and Nobuko Shibayama [1] Unraveling a Historical Mystery: Identification of a Lichen Dye Source in a Fifteenth Century Medieval Tapestry As part of a long-term campaign to document, study, and conserve the Heroes tapestries from The Cloisters collection at The Metropolitan Museum of Art, organic colorant analysis of Julius Caesar (accession number 47.101.3) was performed. Analysis with liquid chromatography–quadrupole time-of-flight mass spectrometry (LC-qToF-MS) revealed the presence of several multiply chlorinated xanthones produced only by certain species of lichen. Various lichen dye sources have been documented in the literature for centuries and are classified as either ammonia fermentation method (AFM) or boiling water method (BWM) dyes based on their method of production. However, none of these known sources produce the distinctive metabolites present in the tapestry. LC-qToF-MS was also used to compare the chemical composition of the dyes in the tapestry with that of several species of crustose lichen. Lichen metabolites, including thiophanic acid and arthothelin, were definitively identified in the tapestry based on comparison with lichen xanthone standards and a reference of Lecanora sulphurata, confirming the presence of a lichen source. This finding marks the first time that lichen xanthones have been identified in a historic object and the first evidence that BWM lichen dyes may have been used prior to the eighteenth century. Explore

6cc21d15-cc42-4899-b231-b24faa352376 Miriam-Helene Rudd Graduate Student Winterthur/University of Delaware Program in Art Conservation Previous Next All members MEMBER INFORMATION Miriam-Helene Rudd is a fellow in the Winterthur/University of Delaware Program in Art Conservation, Class of 2024, majoring in objects and minoring in textiles. She graduated from the University of Delaware (2021) with majors in Art History and Art Conservation and minors in History and Fashion History & Culture. Miriam-Helene is currently at the National Museum of American History (Washington, D.C.) and looks forward to her third-year placement at the Museum of Modern Art (NYC). ABM CONFERENCES ABM 2023 Poster Presenter Art Bio Matters 2023 Conference Explore Full Abstract ABM 2023 Graduate Student Assistant Non-Destructive Analysis of Vegetable Leather Tannins: Viable or Fallible? Explore Full Abstract ABM MEMBER EVENTS PUBLICATIONS + PROJECTS

55886bdd-e849-487d-aa23-fb0e7198a8bf Hwai-ling Yeh-Lewis Senior Collections Manager Asian Art The Metropolitan Museum of Art New York, NY, USA Previous Next All members MEMBER INFORMATION Hwai-ling Yeh-Lewis oversees the storage and care of over 37,000 works in the Asian Art collection. This includes all administration procedures related to acquisitions, incoming and outgoing loans, the collection database, exhibitions, and collection inventory. She also manages internal and external requests for access to the collections, and works with the collections team to facilitate gallery installations and implement the highest standards for collection care. She received her MS in education from Indiana University. ABM CONFERENCES ABM 2023 Participant Art Bio Matters 2023 Conference Explore Full Abstract ABM 2021 Participant Art Bio Matters 2021 Virtual Conference Explore Full Abstract ABM MEMBER EVENTS PUBLICATIONS + PROJECTS

d48de370-e1af-4ffc-87a6-cce8add2baeb Ellen Pearlstein Professor The American Wing UCLA/Getty Program in the Conservation of Cultural HeritageNew York Los Angeles, CA, USA Previous Next All members MEMBER INFORMATION Ellen Pearlstein is a professor of Cultural Heritage Conservation at UCLA/Getty. She incorporates Indigenous instruction into graduate conservation education. Ellen is Director of the Andrew W. Mellon Opportunity for Diversity in Conservation, a Keck Prize awardee, and recent recipient of a Rome Prize. She is completing the upcoming Conservation and Stewardship of Indigenous Collections: Changes and Transformations, in the GCI’s Readings in Conservation series. ABM CONFERENCES ABM 2021 Participant Art Bio Matters 2021 Virtual Conference Explore Full Abstract ABM 2018 Participant Art Bio Matters 2018 Conference Explore Full Abstract ABM MEMBER EVENTS PUBLICATIONS + PROJECTS

c80cf3ea-88c8-4da6-a9de-f3bced6cde12 Matt Cushman Conservator of Paintings/Affiliated Assistant Professor Winterthur/University of Delaware Program in Art Conservation Wilmington, DE, USA Previous Next All members MEMBER INFORMATION Matt Cushman is a paintings conservator and conservation educator. His research interests include cleaning technologies and novel treatments for paintings and decorative surfaces. Prior to joining Winterthur, Matt held positions at the Williamstown Art Conservation Center, the Worcester Art Museum, and Yale University’s Institute for the Preservation of Cultural Heritage. ABM CONFERENCES ABM 2018 Participant Art Bio Matters 2018 Conference Explore Full Abstract ABM MEMBER EVENTS PUBLICATIONS + PROJECTS

9890d064-4b15-49f9-935c-ab92c607478a Gregory Dale Smith Otto N. Frenzel III Senior Conservation Scientist Indianapolis Museum of Art at Newfields Indianapolis, IN, USA Previous Next All members MEMBER INFORMATION Dr. Smith designed, outfitted, and now operates the conservation science laboratory at the IMA where he conducts technical studies of the museum’s collections. His research interests include undergraduate education at the Arts-Science interface, assessing pollution off-gassing of museum construction materials, and understanding the chemical degradation of artists’ materials. ABM CONFERENCES ABM 2023 Steering Committee Art Bio Matters 2023 Conference Explore Full Abstract ABM 2018 Participant Art Bio Matters 2018 Conference Explore Full Abstract ABM MEMBER EVENTS PUBLICATIONS + PROJECTS