ORCID Profile
0000-0002-8509-547X
Current Organisations
University of Melbourne
,
Gdańsk University of Technology
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Curatorial and Related Studies | Materials Conservation |
Publisher: IOP Publishing
Date: 11-2020
DOI: 10.1088/1757-899X/949/1/012003
Abstract: An Arabic Papyrus sheet stored at the Egyptian National Library and Archives was previously placed on unknown secondary support, and interleaved between two glass sheets enclosed with adhesive tape. This papyrus has various deterioration issues especially in the upper section where there is a large embedded stain causing the papyrus to stick to the secondary support and the glass sheet. Conservation treatments conducted involved cleaning, fibre alignment and rehousing, scientific investigations including visible light microscopy, Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR), and Scanning Electron Microscopy with Energy Dispersive Spectrometry (SEM-EDS) were conducted to identify materials involved. A lack of information in the historical records about the excavation and previous conservation treatments increase the importance of the research. The analysis showed that the secondary support is gelatine and Arabic text was written in carbon ink. The gelatine support was successfully removed from the papyrus and the papyrus document was re -housed.
Publisher: Walter de Gruyter GmbH
Date: 24-05-2017
Abstract: Peacock ink, known as Murakkabi ṭāvūsī , was created and used by Persian master calligraphers especially from the 14th century onwards. It is a sub-category of Persian ink which contains four main ingredients: l black, gum Arabic, green vitriol (ferrous sulphate) and gall nut extract (tannic acid). It is differentiated from other inks in that it contains many additional secondary ingredients which will be covered in this paper. Peacock ink derives its name from the range of different coloured materials added to the ink as well as the blue-green undertone this predominantly black ink is said to have. It is reputed to be a high-quality product, rumoured to stay on paper for centuries and is not affected by water, abrasion or other detrimental factors. It was the aim of this investigation to identify and describe in detail ingredients used to make this ink by finding and translating 17 recipes contained in 11 Persian treatises (15th–16th ce ). Of the 31 ingredients found, 16 are plant based, 13 minerals, and 2 animal (protein) based, and in all cases water was used as the vehicle.
Publisher: Informa UK Limited
Date: 03-07-2017
Publisher: Informa UK Limited
Date: 03-07-2017
Publisher: Walter de Gruyter GmbH
Date: 03-03-2023
Abstract: Research over the past three decades has demonstrated that certain plastics in cultural materials are inherently unstable, displaying short lifespans and accelerating the degradation of neighbouring collection materials. Knowledge of the conservation of plastics is increasingly common in museum settings. However, less information is available on conserving plastics found in paper-based collections, and even less guidance on the materials and deterioration of plastic components found in book and document bindings. As plastics have been present in popular bookbinding materials since the mid-twentieth century, collection care professions require knowledge and methods for preserving these materials entering book collections. The aim of this paper is to determine strategies for the care of post-1950s books containing plastic. Collection surveys were conducted to determine the materials, structures, and degradation patterns of non-published books found in archive and archive-like settings at the South Australian Museum, the Art Gallery of New South Wales, and the Grimwade Centre for Cultural Materials Conservation at the University of Melbourne. A methodology combining condition reporting and infrared spectroscopy identified six plastic polymers in 35 binding styles that are summarised as 10 binding types. Recommendations are made for the use of preventive storage strategies responding to four categories of damage.
Publisher: Informa UK Limited
Date: 1994
DOI: 10.1080/09553009414551551
Abstract: Following the earlier demonstration that iodo-Hoechst 33258 sensitizes DNA and cells to UVA, presumably mediated by formation of a carbon-centred radical on the ligand upon dehalogenation, three isomeric analogues of iodo-Hoechst 33258 have now been studied. The isomers differ in the location of the iodine atom in the phenyl ring of the ligand, relative to the site of attachment of the bibenzimidazole moiety, and are accordingly denoted ortho-, meta- and para-iodoHoechst. Comparison of the ligands with respect to induction of DNA ssb in pBR322 DNA revealed a wide range of activity (D37's vary by a factor of 37), decreasing in the order: ortho- > meta- and para- > iodoHoechst 33258. Preliminary dehalogenation studies suggest that the higher activity of the ortho isomer results more from increased cross-section for dehalogenation than from increased efficiency of strand breakage per dehalogenation event. However, the chemistry of strand breakage by the ortho-isomer is distinctive, and tentatively assigned to initial attack at the 1'-deoxyribosyl carbon the other two isomers, like iodo-Hoechst 33258, attack the 5'-carbon. The results are discussed in terms of the spectrum of DNA strand breakage chemistry associated with ionizing radiation, and the potential of DNA strand breaking agents such as the iodoHoechst compounds to study the chemical and biological consequences of the different subclasses of initial DNA damage.
Publisher: Informa UK Limited
Date: 15-03-2022
Publisher: Elsevier BV
Date: 10-2006
Publisher: Informa UK Limited
Date: 2008
Publisher: Springer Science and Business Media LLC
Date: 19-01-2017
Publisher: Informa UK Limited
Date: 12-2006
Publisher: Elsevier
Date: 2013
Publisher: Informa UK Limited
Date: 03-07-2021
Publisher: Informa UK Limited
Date: 02-01-2019
Publisher: Elsevier BV
Date: 05-2010
Publisher: Informa UK Limited
Date: 03-11-2023
Publisher: Common Ground Research Networks
Date: 2013
Publisher: Informa UK Limited
Date: 03-07-2015
Publisher: Springer Science and Business Media LLC
Date: 16-11-2017
DOI: 10.1557/ADV.2017.596
Publisher: Informa UK Limited
Date: 04-07-2023
Publisher: Informa UK Limited
Date: 02-09-2022
Publisher: Informa UK Limited
Date: 05-2013
Publisher: Elsevier BV
Date: 11-2020
Publisher: Informa UK Limited
Date: 12-2011
Publisher: Springer Science and Business Media LLC
Date: 18-11-2019
DOI: 10.1186/S40494-019-0336-0
Abstract: 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 and preservation needs, however, they are frequently unidentified in collection catalogues. Fourier transform infrared (FTIR) spectroscopy is a useful analytical tool for identifying polymers, which is vital for determining storage, exhibition, loan and treatment conditions. Attenuated Total Reflection (ATR), and External Reflection (ER) are proven effective FTIR s ling techniques for polymer identification and are beginning to appear in conservation labs. This paper evaluates and optimises the application of these two FTIR techniques to three-dimensional plastic objects in the museum context. Elements of the FTIR measurement process are investigated for 15 common polymers found in museum collections using both authentic reference sheets, and case study objects to model for surface characteristics. Including: use of the ATR and ER modules, the difference between cl ing and manually holding objects in contact with the ATR crystal, use of the Kramers–Kronig Transformation, signal-to-noise ratios for increasing number of co-added scans, resultant time taken to collect each measurement, associated professional, health and safety considerations, and the use and availability of reference materials for polymer identify verification. Utilising this information, a flowchart for applying FTIR spectroscopy to three-dimensional historic plastic objects during museum collection surveys is proposed to guide the conservation profession.
Start Date: 12-2016
End Date: 12-2022
Amount: $280,000.00
Funder: Australian Research Council
View Funded Activity