Separating forensic, WWII, and archaeological human skeletal remains using ATR-FTIR spectra

Leskovar, Tamara; Pajnič, Irena Zupanič; Jerman, Ivan; Črešnar, Matija

doi:10.1007/s00414-019-02079-0

Cited by 13 publications

(8 citation statements)

References 59 publications

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“…An increase in the collagen bands was also observed in the work of McLaughlin et al (2011) [ 18 ]. In comparison with previous studies concerning diagenesis at long timescales, the mineral/organic ratio is increased for archaeological samples when compared to modern bone [ 16 , 38 , 39 ]. The increase in the mineral/organic ratio might be related to the decrease in the intensity of collagen bands.…”

Section: Discussionmentioning

confidence: 52%

Bone Molecular Modifications Induced by Diagenesis Followed-Up for 12 Months

Falgayrac

Vitale

Delannoy

et al. 2022

Biology

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After death, diagenesis takes place. Numerous processes occur concomitantly, which makes it difficult to identify the diagenetic processes. The diagenetic processes refer to all processes (chemical or physical) that modify the skeletal remains. These processes are highly variable depending on the environmental factors (weather, temperature, age, sex, etc.), especially in the early stages. Numerous studies have evaluated bone diagenetic processes over long timescales (~millions of years), but fewer have been done over short timescales (between days and thousands of years). The objective of the study is to assess the early stages of diagenetic processes by Raman microspectroscopy over 12 months. The mineral and organic matrix modifications are monitored through physicochemical parameters. Ribs from six humans were buried in soil. The modifications of bone composition were followed by Raman spectroscopy each month. The decrease in the mineral/organic ratio and carbonate type-B content and the increase in crystallinity reveal that minerals undergo dissolution–recrystallization. The decrease in collagen cross-linking indicates that collagen hydrolysis induces the fragmentation of collagen fibres over 12 months.

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Section: Discussionmentioning

confidence: 52%

Bone Molecular Modifications Induced by Diagenesis Followed-Up for 12 Months

Falgayrac

Vitale

Delannoy

et al. 2022

Biology

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“…In forensic and archaeological sciences, it is commonly used for answering numerous questions, including the archaeological or forensic context of the human skeletal remains. Results of research published by Leskovar et al 2019, showed that employing whole spectral domains works best for the separation of archaeological, WWII, and forensic samples, even with samples of highly variable origin [70].…”

Section: The Technology Of Infrared Spectroscopy For Spectroscopic Forensic Evaluationmentioning

confidence: 99%

Human Remains Identification Using Micro-CT, Spectroscopic and A.I. Methods in Forensic Experimental Reconstruction of Dental Patterns After Concentrated Acid Significant Impact

Thurzo¹,

Jančovičová²,

Hain³

et al. 2022

Preprint

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(1) Human teeth are the most resilient tissues in the body. However, exposure to concentrated acids might lead to their obliteration, thus making human identification difficult. Teeth often contain dental restorations from materials that are even more resilient to acid impact. This paper introduces novel method of 3D reconstruction of dental patterns as a crucial step for digital identification with dental records.; (2) With combination of modern methods of Micro-Computed Tomography, Cone Beam Computed Tomography, Attenuated Total Reflection in conjunction with Fourier-Transform Infrared Spectroscopy and Artificial Intelligence Convolutional Neural Network algorithms, the paper presents the way of 3D dental pattern reconstruction and human remains identification. Research studies morphology of teeth, bone and dental materials (Amalgam, Composite, Glass-ionomer cement) under different periods of exposure to 75% sulfuric acid; (3) Results reveal significant volume loss in bone, enamel, dentine and as well glass-ionomer cement. Results also reveal significant resistance of composite and amalgam dental materials to sulfuric acid impact, thus serving as strong parts in the dental pattern mosaic. Paper also introduces probably first successful artificial intelligence application in automated forensic CBCT segmentation.; (4) Interdisciplinary cooperation utilizing mentioned technologies can solve problem of human remains identification with 3D reconstruction of dental patterns and their 2D projections over existing ante-mortem records.

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Section: The Technology Of Infrared Spectroscopy For Chemometric Fore...mentioning

confidence: 99%

Human Remains Identification Using Micro-CT, Chemometric and A.I. Methods in Forensic Experimental Reconstruction of Dental Patterns after Concentrated Acid Significant Impact

Thurzo¹,

Jančovičová²,

Hain³

et al. 2022

Preprint

View full text Add to dashboard Cite

(1) Teeth, represent in humans the most resilient tissues. However, exposure to concentrated acids might lead to their obliteration, thus making human identification difficult. Teeth often contain dental restorations from materials that are even more resilient to acid impact. This paper introduces novel method of 3D reconstruction of dental patterns as a crucial step for digital identification with dental records.; (2) With combination of modern methods of Micro-Computer Tomography, Cone Beam Computer Tomography, Attenuated Total Reflection in conjunction with Fourier-Transform Infrared Spectroscopy and Artificial Intelligence Convolutional Neural Network algorithms, the paper presents the way of 3D dental pattern reconstruction and human remains identification. Research studies morphology of teeth, bone, and dental materials (Amalgam, Composite, Glass-ionomer cement) under different periods of exposure to 75% sulfuric acid; (3) Results reveal significant volume loss in bone, enamel, dentine, and as well glass-ionomer cement. Results also reveal significant resistance of composite and amalgam dental materials to sulfuric acid impact, thus serving as strong parts in the dental pattern mosaic. Paper also introduces probably first successful artificial intelligence application in automated forensic CBCT segmentation.; (4) Interdisciplinary cooperation utilizing mentioned technologies can solve problem of human remains identification with 3D reconstruction of dental patterns and their 2D projections over existing ante-mortem records.

show abstract

Separating forensic, WWII, and archaeological human skeletal remains using ATR-FTIR spectra

Cited by 13 publications

References 59 publications

Bone Molecular Modifications Induced by Diagenesis Followed-Up for 12 Months

Bone Molecular Modifications Induced by Diagenesis Followed-Up for 12 Months

Human Remains Identification Using Micro-CT, Spectroscopic and A.I. Methods in Forensic Experimental Reconstruction of Dental Patterns After Concentrated Acid Significant Impact

Human Remains Identification Using Micro-CT, Chemometric and A.I. Methods in Forensic Experimental Reconstruction of Dental Patterns after Concentrated Acid Significant Impact

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