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13th IRUG Conference

Edited by Paula Dredge, Art Gallery of New South Wales, Sydney, Australia

New Content ItemThe Infrared and Raman Users Group (IRUG) is dedicated to the support and professional development of its members by providing a forum for the exchange of infrared and Raman spectroscopic information and reference spectra for the study of the world’s cultural heritage. A primary goal of IRUG is to improve and expand the data generated and shared by its members. Toward this end, a cooperative database of peer-reviewed IR and Raman reference spectra relevant to cultural heritage materials has been undertaken and is freely available on the IRUG website irug.org. Membership of the IRUG initiative gives further access to downloadable spectra.

The IRUG initiative is sustained at biennial conferences, where participants share information and present papers. Conferences have previously been held in, Greece, USA, Spain, Argentina, Austria, Italy, The Netherlands, and the United Kingdom. The 2019 IRUG conference was held for the first time in the South Pacific region at the Art Gallery of NSW in Sydney, Australia. This special collection of Heritage Science presents a selection of the papers from the conference and celebrates 25 years of IRUG activity.


  1. The conservation of polymer-based cultural heritage is a major concern for collecting institutions internationally. Collections include a range of different polymers, each with its own degradation processes an...

    Authors: Julianne Bell, Petronella Nel and Barbara Stuart

    Citation: Heritage Science 2019 7:95

    Content type: Research article

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  2. The availability and popularity of portable non-invasive instrumentation for the study of paintings has increased due to a shift away from using micro-invasive techniques. Fourier transform infrared spectrosco...

    Authors: Thierry Ford, Adriana Rizzo, Ella Hendriks, Tine Frøysaker and Francesco Caruso

    Citation: Heritage Science 2019 7:84

    Content type: Research article

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  3. Paintings and painted objects are quite susceptible to degradation, as paint layers are usually composed of complex mixtures of materials that can participate in chemical degradation processes. The identificat...

    Authors: Eric J. Henderson, Kate Helwig, Stuart Read and Scott M. Rosendahl

    Citation: Heritage Science 2019 7:71

    Content type: Research article

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  4. The potential of Fourier Transform Infrared (FTIR) microspectroscopy, to inform the study and conservation of mineralised excavated textiles is discussed, highlighted by two case studies of 5th c. BCE finds. I...

    Authors: Christina Margariti

    Citation: Heritage Science 2019 7:63

    Content type: Research article

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  5. The exploitation of natural sources and later synthetic molecules to generate blue to purple coloration in textiles has a long history in the dyer’s craft. Natural indigoids such as indigo, woad, and Tyrian or...

    Authors: Gregory Dale Smith, Victor J. Chen, Amanda Holden, Melinda H. Keefe and Shannon G. Lieb

    Citation: Heritage Science 2019 7:62

    Content type: Research article

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