The Validation of Artificial Ageing Methods for Silk Textiles Using Markers for Chemical and Physical Properties of Seventeenth-Century Silk

Nilsson, Johanna; Vilaplana, Francisco; Karlsson, Sigbritt; Bjurman, Jonny; Iversen, Tommy

doi:10.1179/sic.2010.55.1.55

Cited by 16 publications

(20 citation statements)

References 8 publications

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“…However, previous studies strongly suggest that the role of light on the deterioration of historic silk textiles may be exaggerated [ 11 ]. Ultraviolet (UV) irradiation is a common procedure to artificially mimic the effect of daylight on historic silk textiles; however, accelerated UV irradiation affects the structure and the properties of silk textiles in a different way than natural daylight exposure, resulting in crosslinking of the material and altered mechanical properties [ 12 ]. Extreme humidity conditions, both at high and low levels, are known to have negative effects on silk by aiding deterioration.…”

Section: Introductionmentioning

confidence: 99%

Analytical markers for silk degradation: comparing historic silk and silk artificially aged in different environments

Vilaplana

Nilsson²,

Sommer

et al. 2014

Anal Bioanal Chem

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Suitable analytical markers to assess the degree of degradation of historic silk textiles at molecular and macroscopic levels have been identified and compared with silk textiles aged artificially in different environments, namely (i) ultraviolet (UV) exposure, (ii) thermo-oxidation, (iii) controlled humidity and (iv) pH. The changes at the molecular level in the amino acid composition, the formation of oxidative moieties, crystallinity and molecular weight correlate well with the changes in the macroscopic properties such as brightness, pH and mechanical properties. These analytical markers are useful to understand the degradation mechanisms that silk textiles undergo under different degradation environments, involving oxidation processes, hydrolysis, chain scission and physical arrangements. Thermo-oxidation at high temperatures proves to be the accelerated ageing procedure producing silk samples that most resembled the degree of degradation of early seventeenth-century silk. These analytical markers will be valuable to support the textile conservation tasks currently being performed in museums to preserve our heritage.Electronic supplementary materialThe online version of this article (doi:10.1007/s00216-014-8361-z) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Analytical markers for silk degradation: comparing historic silk and silk artificially aged in different environments

Vilaplana

Nilsson²,

Sommer

et al. 2014

Anal Bioanal Chem

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“…In conclusion, while ATR is typically considered as a standard tool for inquiring changes in commercial and historical textiles 29,36,56–58 , our results clearly show that, although in some cases partial changes in the spectra profile are observable, this technique is unsuitable when a rigorous characterization of silk secondary structure is needed, probably owing to the effects of the pressure applied during the measurements. Therefore, detailed information on the structural changes of the naturally and artificially aged silk samples was obtained through reflectance µ-FTIR.…”

Section: Resultsmentioning

confidence: 74%

Understanding the structural degradation of South American historical silk: A Focal Plane Array (FPA) FTIR and multivariate analysis

Badillo-Sanchez

Chelazzi

Giorgi

et al. 2019

Sci Rep

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Silk artifacts constitute an invaluable heritage, and to preserve such patrimony it is necessary to correlate the degradation of silk fibroin with the presence of dyes, pollutants, manufacturing techniques, etc. Fourier Transform Infrared Spectroscopy with a Focal plane array detector (FPA FTIR) provides structural information at the micron scale. We characterized the distribution of secondary structures in silk fibers for a large set of South American historical textiles, coupling FTIR with multivariate statistical analysis to correlate the protein structure with the age of the samples and the presence of dyes. We found that the pressure applied during attenuated total reflectance (ATR) measurements might induce structural changes in the fibers, producing similar spectra for pristine and aged samples. Reflectance spectra were thus used for the rigorous characterization of secondary structures. Some correlation was highlighted between the age of the samples (spanning over five centuries) and specific changes in their secondary structure. A correlation was found between the color of the samples and structural alterations, in agreement with the chemical nature of the dyes. Overall, we demonstrated the efficacy of reflectance FPA µ-FTIR, combined with multivariate analysis, for the rigorous and non-invasive description of protein secondary structures on large sets of samples.

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“…The polymer has a significant mass loss caused by a continued decline in molecular weight until polymer integrity cannot be maintained [102]. (iv) Polymer erosion that occurs when polymer molecules break and dissolve in other mediums [103,104]. Schematic illustration of all processes is shown in Fig.…”

Section: Degradation Mechanismmentioning

confidence: 99%

“…The effects of daylight on silk can be emulated with ultraviolet (UV) irradiation. Despite the different ways, this UV irradiation produces the same effect on the structure and properties of silk [103]. Its resistance to UV is one of the physicochemical properties that becomes an important consideration in supporting its application.…”

Section: Silk Fibroin Degradation Due To Uv Irradiationmentioning

confidence: 99%

Degradation Behavior of Silk Fibroin Biomaterials - A Review

Purnomo¹,

Setyarini²,

Sulistyaningsih³

2019

JESTR

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Silk fibroin-based biomaterials have developed widely for biomedical applications including soft tissue engineering and bone implants. Controlling the degradation rate is very notable in maintaining the performance of biomaterials in carrying out their functions. This review was focused on the process of biodegradation of silk fibroin and its controllers including among other factors that influence the degradation process, mechanisms, behavior, the role of ultraviolet (UV) radiation, and the effect of molecular weight. All studies in this paper provide more in-depth knowledge about the biodegradation of silk fibroin enzymatically as well as UV radiation effect.

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The Validation of Artificial Ageing Methods for Silk Textiles Using Markers for Chemical and Physical Properties of Seventeenth-Century Silk

Cited by 16 publications

References 8 publications

Analytical markers for silk degradation: comparing historic silk and silk artificially aged in different environments

Analytical markers for silk degradation: comparing historic silk and silk artificially aged in different environments

Understanding the structural degradation of South American historical silk: A Focal Plane Array (FPA) FTIR and multivariate analysis

Degradation Behavior of Silk Fibroin Biomaterials - A Review

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