Application of Innovative TGA/Chemometric Approach for Forensic Purposes: The Estimation of the Time since Death in Contaminated Specimens

Risoluti, Roberta; Gullifa, Giuseppina; Fineschi, Vittorio; Frati, Paola; Materazzi, Stefano

doi:10.3390/diagnostics11010121

Cited by 7 publications

(2 citation statements)

References 40 publications

(15 reference statements)

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“…Therefore, the importance of a multidisciplinary approach for the characterization of matrices (organs, tissues, or fluids) that respond linearly to the postmortem interval is emerging increasingly. Risoluti et al proposed a novel approach to the study of the vitreous humor since it is particularly suitable for studies aimed at assessing time-related modifications because it is topographically isolated and well-protected [ 334 ].…”

Section: Applications To Pharmaceuticalsmentioning

confidence: 99%

On-Line Thermally Induced Evolved Gas Analysis: An Update—Part 1: EGA-MS

et al. 2022

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Advances in on-line thermally induced evolved gas analysis (OLTI-EGA) have been systematically reported by our group to update their applications in several different fields and to provide useful starting references. The importance of an accurate interpretation of the thermally-induced reaction mechanism which involves the formation of gaseous species is necessary to obtain the characterization of the evolved products. In this review, applications of Evolved Gas Analysis (EGA) performed by on-line coupling heating devices to mass spectrometry (EGA-MS), are reported. Reported references clearly demonstrate that the characterization of the nature of volatile products released by a substance subjected to a controlled temperature program allows us to prove a supposed reaction or composition, either under isothermal or under heating conditions. Selected 2019, 2020, and 2021 references are collected and briefly described in this review.

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Section: Applications To Pharmaceuticalsmentioning

confidence: 99%

On-Line Thermally Induced Evolved Gas Analysis: An Update—Part 1: EGA-MS

et al. 2022

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“…PMI estimation has been studied in a variety of samples at different stages of decomposition, including vitreous humor [ 4 ], blood [ 5 ], soft tissues [ 6 ] and skeletal remains [ 7 ]. A range of techniques have been applied to improve this estimate, such as thermogravimetry [ 8 , 9 ], micro-computed tomography [ 10 ], near-infrared spectroscopy [ 11 ], among others. New molecular approaches, such as proteomics [ 12 ], molecular [ 13 , 14 ] and microbiome techniques [ 15 ], are increasingly being considered for PMI estimation.…”

Section: Introductionmentioning

confidence: 99%

Partners in Postmortem Interval Estimation: X-ray Diffraction and Fourier Transform Spectroscopy

Rubio

Suárez

Martín‐de‐las‐Heras

et al. 2023

IJMS

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The postmortem interval (PMI) is difficult to estimate in later stages of decomposition. There is therefore a need to develop reliable methodologies to estimate late PMI. This study aims to assess whether there is a correlation between changes in the mineral composition of human teeth and the estimation of PMI. X-ray diffraction (XRD) and attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy techniques were performed to address this challenge. Forty healthy human teeth obtained from odontological clinics were stored at different times (0, 10, 25, 50 years; N = 10/group). XRD and ATR-FTIR parameters related to the structure and composition of teeth were studied. Our results showed that the crystallinity index, crystal size index, mineral-to-organic matrix ratio (M/M) and carbonate/phosphate ratio (C/P) had the strongest association with PMI. For larger PMIs, there was a significant increase in crystallinity, crystal size and M/M ratio, while the C/P ratio showed a specific decrease with increasing PMI. According to our results, the parameters of crystallinity, crystal size, M/M ratio and C/P ratio can be considered highly accurate in determining a PMI of 10 years of data; crystallinity and mineral maturity can be considered useful in determining a PMI of 25 years; and crystallinity and mineral maturity can be considered highly accurate in determining a PMI of 50 years. A particular XRD index was identified as the most suitable parameter to estimate PMI: crystallinity. The joint use of XRD and ATR-FTIR analyses could be a promising alternative for dating human teeth.

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Production of flame-resistant bacterial cellulose using whey protein isolate or casein via physical entrapment and crosslinking

Kim,

Kim

2023

Cellulose

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Application of Innovative TGA/Chemometric Approach for Forensic Purposes: The Estimation of the Time since Death in Contaminated Specimens

Cited by 7 publications

References 40 publications

On-Line Thermally Induced Evolved Gas Analysis: An Update—Part 1: EGA-MS

On-Line Thermally Induced Evolved Gas Analysis: An Update—Part 1: EGA-MS

Partners in Postmortem Interval Estimation: X-ray Diffraction and Fourier Transform Spectroscopy

Production of flame-resistant bacterial cellulose using whey protein isolate or casein via physical entrapment and crosslinking

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