First Advisor

Tami L. Clare

Term of Graduation

Winter 2022

Date of Publication

1-19-2022

Document Type

Dissertation

Degree Name

Doctor of Philosophy (Ph.D.) in Chemistry

Department

Chemistry

Language

English

DOI

10.15760/etd.7773

Physical Description

1 online resource (xx, 171 pages)

Abstract

The field of conservation science falls in the intersection of science and art. The work of conservation scientists may include any single subdiscipline of chemistry, though it is most commonly a highly interdisciplinary field taking skills from analytical, organic, and inorganic chemistry, as well as surface and materials science. The aims of conservation scientists are to answer questions about the production and aging of material cultural heritage. Knowing the materials used by an artist can lead to insight about the intentions of the object and knowing how those materials degrade will enable the use of preventative measures to ensure the object can be enjoyed for future generations. All conservation science work aims to inform collections care personnel (e.g., conservators and curators) so that they can implement appropriate care, storage, and display conditions for a given object.

Special considerations must be made when analyzing artwork. Such considerations include leaving an object in the same condition it was in before treatment, and when sampling is necessary, minimizing the sample size to the greatest extent possible. Therefore, an important facet of conservation science work is to ensure techniques are as non-destructive and minimally-invasive as possible.

In this work, two applications to conservation science are presented. The first application aimed to identify red colorants on Japanese woodblock prints by novel sampling and analytical methods. The inception of this project was in partnership with the Portland Art Museum (PAM) and the 2018 exhibition entitled Suzuki Harunobu and the Culture of Color. The work herein developed a soft mechanical sampling technique for the acquisition of micrometer-sized colorant particles from the surface of 18th century woodblock prints. In Chapters 3 and 4, the sampling method is introduced and validated, and the collected samples were analyzed by surface-enhanced Raman spectroscopy (SERS). The analysis was aided by the implementation of a genetic algorithm (GA) which matches the spectral contributions of the samples to identify the components present. In Chapter 5, the results of a study of artworks attributed to Suzuki Harunobu in the PAM's permanent collection are presented. Through a multi-analytical approach, the palette of red colorants in the collection was established. This work provides technical information and historical context to the practice of commercial printmaking in late-18th century Japan.

The second application, presented in Chapter 7, aimed to develop a sensor for the detection of active corrosion products on the surface of metal sculpture. This work provides the preliminary synthesis and characterization of a carbon-quantum dot functionalized polymeric hydrogel (bCQD-hydrogel). The bCQD-hydrogels harness the fluorescence properties of carbon quantum dots by incorporating them into a flexible polymer network. This soft material is then demonstrated to be sensitive to soluble metal ions, the first indicators of active metal corrosion. Finally, preliminary data is presented demonstrating the use of these materials on metal surfaces. These two projects, while seemingly unrelated, represent a breadth of research focus and illustrate the expansive applications of conservation science.

Rights

© 2021 Lyndsay Nichole Kissell

In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).

Persistent Identifier

https://archives.pdx.edu/ds/psu/37256

Available for download on Friday, January 19, 2024

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