Establishing a preservation index for bone, dentin, and enamel bioapatite mineral using ATR-FTIR

France, Christine A.M.; Sugiyama, Nawa; Aguayo, Esther

doi:10.1016/j.jasrep.2020.102551

Cited by 31 publications

(51 citation statements)

References 52 publications

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“…XRF analyzers determine the chemistry of a sample by measuring the fluorescent (or secondary) X-ray emitted from a sample when it is excited by a primary X-ray source. With the same measurements on the model tooth (Figure 11 b), teeth showed as more stable and were naturally expected to last longer than bone [11]. The main absorption bands of the tooth are located in the same areas as the bone.…”

Section: Atr Ftir Spectroscopymentioning

confidence: 67%

“…Modern imaging techniques and methods involving dental diagnostics and care have advanced the profession into the modern era. This article communicates an interdisciplinary combination of digital photography, cone-beam computed tomography (CBCT) [4], micro computed tomography (micro-CT) [5,6], advanced Artificial Intelligence (AI) algorithms like 3D Convolutional Neural Network (CNN) algorithms [7][8][9] and Attenuated Total Reflection (ATR) in conjunction with Fourier-Transform Infrared Spectroscopy (FTIR) [10,11].…”

Section: Human Identification From Obliterated Remains -The Problemmentioning

confidence: 99%

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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: Atr Ftir Spectroscopymentioning

confidence: 67%

Section: Human Identification From Obliterated Remains -The Problemmentioning

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

View full text Add to dashboard Cite

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“…It was reported that the absorption bands due to C–O stretching appeared at ν = 1167, and 1106 cm −1 as cited by Aghazadeh and Nikpassand 81 . Besides, the absorption bands at ν = 1031 (strong S=O stretching) 82 , 880 (strong C–H binding “1,2,4-trisubstituted”), 778 (strong C–H binding “1,2,3-trisubstituted”), 731 (strong C–H binding “1,2-disubstituted”) 83 , 669 (strong C–halogen “halogen = Cl, Br or I” “halogenated compound”) 84 , 605 (phosphate) 85 , 532 and 456 (two bi-phenyl rings “conjugated”) 86 .…”

Section: Resultsmentioning

confidence: 99%

Biosorption of cationic Hg2+ and Remazol brilliant blue anionic dye from binary solution using Gelidium corneum biomass

El‐Naggar

Hamouda

El-Khateeb

et al. 2021

Sci Rep

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Remazol brilliant blue (RBB) is an anthraquinone anionic dye that has several commercial uses, especially in the textile industries and is well-known for its detrimental impacts on marine life and the surrounding ecosystem. Mercury (Hg2+) is also one of the most severe hazardous environmental contaminants due to its bioaccumulation through the food chain and high toxicity to the human embryo and fetus. The biosorption potential of Gelidium corneum biomass for bioremoval of Hg2+ and RBB dye simultaneously from binary mixture was assessed. The effects of initial pH, contact time, Hg2+, RBB, and biomass concentrations on the biosorption process were investigated in 50 batch experiments using a Face-centered central composite design. The maximum removal percentage of Hg2+ (98.25%) was achieved in the run no. 14, under optimum experimental conditions: 200 mg/L Hg2+, 75 mg/L RBB, pH 5. At 30 °C, 4 g/L algal biomass was used, with a contact time of 180 min. Whereas, the maximum removal percentage of RBB (89.18%) was obtained in the run no. 49 using 200 mg/L Hg2+, 100 mg/L RBB, pH 5, 4 g/L algal biomass and 180 min of contact time. FTIR analysis of Gelidium corneum biomass surface demonstrated the presence of many functional groups that are important binding sites responsible for Hg2+ and RBB biosorption. SEM analysis showed apparent morphological alterations including surface shrinkage and the appearance of new shiny adsorbate ion particles on the Gelidium corneum biomass surface after the biosorption process. The EDX study reveals an additional optical absorption peak for Hg2+, confirming the role of Gelidium corneum biomass in Hg2+ biosorption. In conclusion, Gelidium corneum biomass has been shown to be an eco-friendly, sustainable, promising, cost-effective and biodegradable biosorbent to simultaneously biosorb Hg2+ and RBB dye from aquatic ecosystems.

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“…Due to distortion from the ATR, these positions are equivalent to peaks measured in KBr spectra at 1415 and 1035 cm −1 , respectively. As recommended by France et al (2020, 13), C/P ratios between 0.08 and 0.2 were considered indicating well‐preserved samples.…”

Section: Methodsmentioning

confidence: 99%

Investigating individual migration life histories: An isotopic case study from 17th to 18th century Nouvelle France

Vigeant

Ribot

Hélie

2021

American Journal of Biological Anthropology

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Objectives This isotopic study explores the mobility patterns of a growing urban population from Notre Dame's Catholic cemetery (1691–1796), located in Montreal (Canada). The site offers a unique opportunity to investigate early colonial settlement in Nouvelle France through individual life patterns. Materials and methods Stable oxygen isotopic compositions (δ18O) were measured on the enamel of 32 individuals from the Notre Dame collection. Premolars and third molars were selected, as they reflected the δ18O of the drinking water during childhood (2.5–5.5 years) and pre‐adulthood (9.5–15.5 years). Firstly, premolars from three children (4–8 years of age) allowed us to provide a mean δ18O for the water consumed locally (22.7 ± 1.0 ‰ vs. VSMOW). Then, our δ18O were compared with published data from various geographical regions in North America (Eastern Canada and the United States) and Europe (France and the British Isles) to highlight mobility patterns of each individual. Results Forty‐eight percent of our sample (14 out of 29 individuals) did not reflect any long‐distance mobility, as all their δ18O reflected Montreal's variation during their lifetime. The remaining (15 out of 29 individuals) experienced mobility within (n = 8) and outside (n = 7) North America and at different phases of their life (five at pre‐adulthood, six at adulthood and four during both phases). Their migration patterns were analyzed according to age, sex, diet and possible ancestry in order to propose some “biographies.” Discussion This study highlights high population diversity in early colonial Montreal. Historians wrote that the city was growing, not only with the arrival of Europeans (e.g., young male workers, sailors), but also other groups (e.g., Indigenous people, slaves from North America). Additional analyses (e.g., ancient DNA) will be needed to explore further this phenomenon.

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Establishing a preservation index for bone, dentin, and enamel bioapatite mineral using ATR-FTIR

Cited by 31 publications

References 52 publications

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, Spectroscopic and A.I. Methods in Forensic Experimental Reconstruction of Dental Patterns After Concentrated Acid Significant Impact

Biosorption of cationic Hg2+ and Remazol brilliant blue anionic dye from binary solution using Gelidium corneum biomass

Investigating individual migration life histories: An isotopic case study from 17th to 18th century Nouvelle France

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