Solid-state NMR studies on the organic matrix of bone

Xue, Huadong; Yin, Yilong; He, Tian; Song, Haixin; Li, Jianhua; Kong, Xueqian

doi:10.1007/s12274-022-5034-7

Cited by 2 publications

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“…This technique has been routinely applied to the study of bone and is cost-effective, rapid, simple and non-destructive, requiring only a few mg of bone powder [26]. By contrast to solid-state NMR which yields overall information on bone, for each active nucleus probed [27][28][29], infrared spectroscopy is able to provide comprehensive data on bone's chemical composition and structure simultaneously, in a straightforward and rapid manner, which renders it ideal for a routine analysis of the effect of heat on these types of samples. This investigation encompasses two different stages: (i) the first one documenting anaerobic conditions in experimentally burnt human samples at different maximum temperatures, following a previous work from Marques et al [21]; (ii) the second one involving the FTIR-ATR analysis of selected archaeological artefacts from VNSP, to be compared against the experimental samples used here as a reference.…”

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confidence: 99%

Infrared Spectroscopy to Assess Manufacturing Procedures of Bone Artefacts from the Chalcolithic Settlement of Vila Nova de São Pedro (Portugal)

et al. 2023

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Vibrational spectroscopy was applied to study cylindrical engraved bone boxes from the Chalcolithic settlement of Vila Nova de São Pedro (VNSP, Azambuja, Portugal) which has the largest and richest artefact assemblage of Copper Age Western Iberia. The objectives were to reconstitute manufacturing techniques, determine the role of pyrotechnology in the production of cylindrical engraved bone boxes and assess oxygen conditions during burning. Four fragments of cylindrical engraved bone “boxes” from VNSP were used in this research. Anaerobic experimental burn conditions were recreated by using a home-made steel airtight chamber under vacuum. Human bone fragments were burnt at 400–1000 °C for 120–211 min. Fourier-transform infrared spectroscopy analyses were performed on bone powder samples. The resulting spectra and chemometric indices were used as a reference to establish comparisons with the archaeological artefacts. None of these presented spectral features compatible with anaerobic burning. Therefore, aerobic burns were used to achieve the whitish look and were most probably used to attain the darker shade displayed by the artefacts. Artefact manufacturing appears to have relied on bone cutting, bone engraving and maybe polishing, followed by heat treatment. The population from VNSP appears to have been highly specialized in the use of fire to work different raw materials.

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