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Dou T, Holman AP, Hays SR, Donaldson TG, Goff N, Teel PD, Kurouski D. Species identification of adult ixodid ticks by Raman spectroscopy of their feces. Parasit Vectors 2024; 17:43. [PMID: 38291487 PMCID: PMC10825978 DOI: 10.1186/s13071-023-06091-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 12/11/2023] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND Ticks and tick-borne diseases pose significant challenges to cattle production, thus the species identification of ticks and knowledge on their presence, abundance, and dispersal are necessary for the development of effective control measures. The standard method of inspection for the presence of ticks is the visual and physical examination of restrained animals, but the limitations of human sight and touch can allow larval, nymphal, and unfed adult ticks to remain undetected due to their small size and site of attachment. However, Raman spectroscopy, an analytical tool widely used in agriculture and other sectors, shows promise for the identification of tick species in infested cattle. Raman spectroscopy is a non-invasive and efficient method that employs the interaction between molecules and light for the identification of the molecular constituents of specimens. METHODS Raman spectroscopy was employed to analyze the structure and composition of tick feces deposited on host skin and hair during blood-feeding. Feces of 12 species from a total of five genera and one subgenus of ixodid ticks were examined. Spectral data were subjected to partial least squares discriminant analysis, a machine-learning model. We also used Raman spectroscopy and the same analytical procedures to compare and evaluate feces of the horn fly Haematobia irritans after it fed on cattle. RESULTS Five genera and one sub-genus at overall true prediction rates ranging from 92.3 to 100% were identified from the Raman spectroscopy data of the tick feces. At the species level, Dermacentor albipictus, Dermacentor andersoni and Dermacentor variabilis at overall true prediction rates of 100, 99.3 and 100%, respectively, were identified. There were distinct differences between horn fly and tick feces with respect to blood and guanine vibrational frequencies. The overall true prediction rate for the separation of tick and horn fly feces was 98%. CONCLUSIONS Our findings highlight the utility of Raman spectroscopy for the reliable identification of tick species from their feces, and its potential application for the identification of ticks from infested cattle in the field.
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Affiliation(s)
- Tianyi Dou
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA
| | - Aidan P Holman
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA
- Department of Entomology, Texas A&M AgriLife Research, College Station, TX, 77843, USA
| | - Samantha R Hays
- Department of Entomology, Texas A&M AgriLife Research, College Station, TX, 77843, USA
| | - Taylor G Donaldson
- Department of Entomology, Texas A&M AgriLife Research, College Station, TX, 77843, USA
| | - Nicolas Goff
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA
| | - Pete D Teel
- Department of Entomology, Texas A&M AgriLife Research, College Station, TX, 77843, USA.
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA
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Chauhan S, Sharma S. Applications of Raman spectroscopy in the analysis of biological evidence. Forensic Sci Med Pathol 2023:10.1007/s12024-023-00660-z. [PMID: 37878163 DOI: 10.1007/s12024-023-00660-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/21/2023] [Indexed: 10/26/2023]
Abstract
During the past few decades, Raman spectroscopy has progressed and captivated added attention in the field of science. However, the application of Raman spectroscopy is not limited to the field of forensic science and analytical chemistry; it is one of the emerging spectroscopic techniques, utilized in the field of forensic science which in turn could be a supporting tool in the law and justice system. The advantage of Raman spectroscopy over the other conventional techniques is that it is rapid, reliable, and non-destructive in nature with minimal or no sample preparation. The quantitative and qualitative analysis of evidence from biological and non-biological origins could easily be performed by using Raman spectroscopy. The forensic domain is highly complex with multidisciplinary branches, and therefore a plethora of techniques are utilized for the detection, identification, and differentiation of innumerable pieces of evidence for the purpose of law and justice. Herein, a systematic review is carried out on the application of Raman spectroscopy in the realm of forensic biology and serology considering its usefulness in practical perspectives. This review paper highlights the significance of modern techniques, including micro-Raman spectroscopy, confocal Raman spectroscopy, surface-enhanced Raman spectroscopy, and paper-based surface-enhanced Raman spectroscopy, in the field of Raman spectroscopy. These techniques have demonstrated notable advancements in terms of their applications and capabilities. Furthermore, to comprehensively capture the progress in the development of Raman spectroscopy, all the published papers which could be retrieved from the available databases from the year 2007 to 2022 were incorporated.
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Affiliation(s)
- Samiksha Chauhan
- LNJN NICFS, School of Forensic Sciences, National Forensic Science University, An Institute of National Importance, Ministry of Home Affairs, Govt. of India, Delhi Campus, Delhi, 110085, India
| | - Sweety Sharma
- LNJN NICFS, School of Forensic Sciences, National Forensic Science University, An Institute of National Importance, Ministry of Home Affairs, Govt. of India, Delhi Campus, Delhi, 110085, India.
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Ding ZW, Wu HL, Wang T, Wang XZ, Yu RQ. Anti-interference and non-destructive identification of textile fabrics using front-face excitation-emission matrix fluorescence spectroscopy combined with multi-way chemometrics. Talanta 2023; 265:124866. [PMID: 37418956 DOI: 10.1016/j.talanta.2023.124866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/09/2023] [Accepted: 06/20/2023] [Indexed: 07/09/2023]
Abstract
The identification of trace textile fabrics discovered at crime scenes plays a crucial role in the case of forensic investigations. Additionally, in practical situations, fabrics may be contaminated, making identification more challenging. To address the aforementioned issue and promote the application of fabrics identification in forensic analysis, front-face excitation-emission matrix (FF-EEM) fluorescence spectra coupled with multi-way chemometric methods were proposed for the interference-free and non-destructive identification of textile fabrics. Common commercial dyes in the same color range under different materials (cotton, acrylic, and polyester) that cannot be visually distinguished were investigated, and several binary classification models for the identification of dye were established using partial least squares discriminant analysis (PLS-DA). The identification of dyed fabrics in the presence of fluorescent interference was also taken into consideration. In each kind of pattern recognition model mentioned above, the classification accuracy (ACC) of the prediction set was 100%. The alternating trilinear decomposition (ATLD) algorithm was executed to separate mathematically and remove the interference, and the classification model based on the reconstructed spectra attained an accuracy of 100%. These findings indicate that FF-EEM technology combined with multi-way chemometric methods has broad prospects for forensic trace textile fabric identification, especially in the presence of interference.
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Affiliation(s)
- Zi-Wei Ding
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Hai-Long Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
| | - Tong Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
| | - Xiao-Zhi Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Ru-Qin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
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Determination of disperse dyes on polyester fibers by UHPLC-Orbitrap MS. Sci Justice 2023; 63:83-89. [PMID: 36631185 DOI: 10.1016/j.scijus.2022.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/01/2022] [Accepted: 11/26/2022] [Indexed: 12/03/2022]
Abstract
The determination of fiber dyes is important in forensic investigations. Although a variety of fiber dyes detection methods have been established, the sensitive and accurate determination of trace fiber dyes remains a challenge due to the possible interferences caused by complex environmental matrix and various fiber additives. Orbitrap mass spectrometry (Orbitrap MS) is a type of high-resolution mass spectrometry with high qualitative accuracy and detection sensitivity which highly meet the identification requirements of fiber dyes in real cases. However, the application of Orbitrap MS in fiber dye analysis is limited. In this regard, this study used polyester fiber, which is the most commonly-found fiber in forensic cases, as a model and established a UHPLC-Orbitrap MS method to analyze disperse dyes on polyester fibers. Using the optimized UHPLC-Orbitrap MS method, nine disperse dyes were accurately identified and well separated, and the limits of detection ranged between 0.1 ng/mL and 5.0 ng/mL. The developed method was applied to analyze actual fiber samples, and dyes from single fibers of 1 mm in length could be accurately detected. The established method is sensitive, accurate, and demonstrates good application prospects.
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Rydzak PM, Elwick KE, Damaso N, Robertson JM. Assessment of detection limits for dyed and mounted textile fibers using Raman spectroscopy. J Forensic Sci 2022; 67:2278-2290. [PMID: 36076332 DOI: 10.1111/1556-4029.15125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/04/2022] [Accepted: 08/04/2022] [Indexed: 11/29/2022]
Abstract
Trace evidence in the form of textile fibers can be used to link objects and places during an investigation. Raman spectroscopy is a well-established technique that has been used for the examination of various pigments, paints, inks, and dyes. The objective of this study was to determine the capability of Raman spectroscopy to detect several different dye classes and colors on a variety of textile fibers. To test this, four categories of dyes, reactive, disperse, acid, and direct were examined with Raman microscopy while applied to one of five fiber types (cotton, polyester, nylon, wool, and rayon). Each dye category was tested using four colors, black, blue, red, and yellow, while at four concentrations of dye (w/w), 4% (black only), 1%, 0.5%, and 0.05% (blue, red, and yellow). Finally, each dye, fiber, color, and dye concentration combination were examined with Raman using one of two laser excitation sources (532 nm and 780 nm) while mounted in one of two mounting media, Permount™ and Entellan® new, as well as unmounted. Raman spectroscopy could detect some dyes at low concentrations (0.5% and 0.05%) even when mounted in mounting media and covered with a glass coverslip. Excitation source, dye category, dye concentration, fiber type, and mounting method all influence the ability to detect any given dye. These results support the continued study of Raman as a tool for the examination of fiber dyes as it has shown the potential to be effective even under constraints experienced by forensic examiners.
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Affiliation(s)
- Patrick M Rydzak
- Visiting Scientist Program, Federal Bureau of Investigation Laboratory Division, Research and Support Unit, Quantico, Virginia, USA
| | - Kyleen E Elwick
- Visiting Scientist Program, Federal Bureau of Investigation Laboratory Division, Research and Support Unit, Quantico, Virginia, USA
| | - Natalie Damaso
- Visiting Scientist Program, Federal Bureau of Investigation Laboratory Division, Research and Support Unit, Quantico, Virginia, USA
| | - James M Robertson
- Federal Bureau of Investigation Laboratory Division, Research and Support Unit, Quantico, Virginia, USA
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6
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Aljannahi A, Alblooshi RA, Alremeithi RH, Karamitsos I, Ahli NA, Askar AM, Albastaki IM, Ahli MM, Modak S. Forensic Analysis of Textile Synthetic Fibers Using a FT-IR Spectroscopy Approach. Molecules 2022; 27:molecules27134281. [PMID: 35807525 PMCID: PMC9268719 DOI: 10.3390/molecules27134281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/20/2022] [Accepted: 06/30/2022] [Indexed: 12/07/2022] Open
Abstract
Synthetic fibers are one of the most valuable trace lines of evidence that can be found in crime scenes. When textile fibers are analyzed properly, they can help in finding a linkage between suspect, victim, and the scene of the crime. Various analytical techniques are used in the examination of samples to determine relationships between different fabric fragments. In this exploratory study, multivariate statistical methods were investigated in combination with machine learning classification models as a method for classifying 138 synthetic textile fibers using Fourier transform infrared spectroscopy, FT-IR. The data were first subjected to preprocessing techniques including the Savitzky–Golay first derivative method and Standard Normal Variate (SNV) method to smooth the spectra and minimize the scattering effects. Principal Component Analysis (PCA) was built to observe unique patterns and to cluster the samples. The classification model in this study, Soft Independent Modeling by Class Analogy (SIMCA), showed correct classification and separation distances between the analyzed synthetic fiber types. At a significance level of 5%, 97.1% of test samples were correctly classified.
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Affiliation(s)
- Abdulrahman Aljannahi
- Dubai Police General Headquarters, Dubai 1492, United Arab Emirates; (A.A.); (R.A.A.); (R.H.A.); (N.A.A.); (A.M.A.); (I.M.A.); (M.M.A.)
| | - Roudha Abdulla Alblooshi
- Dubai Police General Headquarters, Dubai 1492, United Arab Emirates; (A.A.); (R.A.A.); (R.H.A.); (N.A.A.); (A.M.A.); (I.M.A.); (M.M.A.)
| | - Rashed Humaid Alremeithi
- Dubai Police General Headquarters, Dubai 1492, United Arab Emirates; (A.A.); (R.A.A.); (R.H.A.); (N.A.A.); (A.M.A.); (I.M.A.); (M.M.A.)
| | - Ioannis Karamitsos
- Research and Graduate Department, Rochester Institute of Technology, Dubai 1492, United Arab Emirates;
- Correspondence:
| | - Noora Abdulkarim Ahli
- Dubai Police General Headquarters, Dubai 1492, United Arab Emirates; (A.A.); (R.A.A.); (R.H.A.); (N.A.A.); (A.M.A.); (I.M.A.); (M.M.A.)
| | - Asma Mohammed Askar
- Dubai Police General Headquarters, Dubai 1492, United Arab Emirates; (A.A.); (R.A.A.); (R.H.A.); (N.A.A.); (A.M.A.); (I.M.A.); (M.M.A.)
| | - Ikhlass Mohammed Albastaki
- Dubai Police General Headquarters, Dubai 1492, United Arab Emirates; (A.A.); (R.A.A.); (R.H.A.); (N.A.A.); (A.M.A.); (I.M.A.); (M.M.A.)
| | - Mohamed Mahmood Ahli
- Dubai Police General Headquarters, Dubai 1492, United Arab Emirates; (A.A.); (R.A.A.); (R.H.A.); (N.A.A.); (A.M.A.); (I.M.A.); (M.M.A.)
| | - Sanjay Modak
- Research and Graduate Department, Rochester Institute of Technology, Dubai 1492, United Arab Emirates;
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Zapata F, Ortega-Ojeda FE, García-Ruiz C. Forensic examination of textile fibres using Raman imaging and multivariate analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 268:120695. [PMID: 34896680 DOI: 10.1016/j.saa.2021.120695] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 06/14/2023]
Abstract
Vibrational spectroscopic techniques have shown to be highly suitable for the identification and comparison of textile fibres and clothing fabrics. On the other hand, new chemical imaging modes based on these spectroscopic techniques are becoming useful in multiple fields. This is particularly important to, for instance, chemically visualize and screen different samples including forensic evidence (crime scene investigation), chemical and food products (quality control), biological tissues and living beings (medical imaging), among others. This study explores the forensic examination and selective chemical visualization of textile fibres and clothing fabrics using Raman imaging. Four experiments were performed, which were focused on the screening of (i) white different materials made of 100 % cotton (gauze, cotton wool, t-shirt, and swab), (ii) polyester and cotton fabrics evidence of the same colour, (iii) five different coloured cotton fabrics, and (iv) textile fibres of different materials (acrylic, cotton, nylon, polyester, and silk). Several methods of multivariate chemometric analysis including principal component analysis (PCA), multivariate analysis of variance (MANOVA), and multivariate curve resolution (MCR) were applied to enhance the limited visual comparison of the spectra accomplished with the unaided eye. The results evidenced the suitability of Raman imaging to statistically discriminate textile fibres and fabrics due to the chemical composition of both the clothing material and the dyestuff.
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Affiliation(s)
- Félix Zapata
- Department of Analytical Chemistry, University of Murcia, 30100 Murcia, Spain.
| | - Fernando E Ortega-Ojeda
- University of Alcalá, Department of Physics and Mathematics, Ctra. Madrid-Barcelona km 33.6, 28871 Alcalá de Henares (Madrid), Spain; University of Alcalá, University Institute of Research in Police Sciences (IUICP), Ctra. Madrid-Barcelona km 33.6, 28871 Alcalá de Henares (Madrid), Spain; University of Alcalá, Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Ctra. Madrid-Barcelona km 33.6, 28871 Alcalá de Henares (Madrid), Spain
| | - Carmen García-Ruiz
- University of Alcalá, University Institute of Research in Police Sciences (IUICP), Ctra. Madrid-Barcelona km 33.6, 28871 Alcalá de Henares (Madrid), Spain; University of Alcalá, Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Ctra. Madrid-Barcelona km 33.6, 28871 Alcalá de Henares (Madrid), Spain
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Hughes DA, Szkuta B, van Oorschot RA, Yang W, Conlan XA. Impact of surface roughness on the deposition of saliva and fingerprint residue on non-porous substrates. Forensic Chem 2021. [DOI: 10.1016/j.forc.2021.100318] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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9
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Rodríguez-Romeu O, Constenla M, Carrassón M, Campoy-Quiles M, Soler-Membrives A. Are anthropogenic fibres a real problem for red mullets (Mullus barbatus) from the NW Mediterranean? THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 733:139336. [PMID: 32422462 DOI: 10.1016/j.scitotenv.2020.139336] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 06/11/2023]
Abstract
Microfibres are among the most prevalent type of microplastics in marine environments. Man-made fibres derived from cellulose are distributed worldwide, but are often confused with synthetic plastic fibres and consequently neglected. All these fibres may adversely affect aquatic organisms, but their levels and potential effects in wild fish remain unknown. We analysed anthropogenic fibre (AF) ingestion in the red mullet (Mullus barbatus), at both temporal and geographical scales, to assess potential effects of these fibres on fish health condition. AFs were present in 50% of fish digestive tracts, with a mean of 1.48 AFs per individual (SD = 1.98). In Barcelona, an increase of 46% in AF ingestion was observed in 2018 compared to 2007. AF ingestion also increases by 20% when Barcelona is compared to a less urban area (the town of Blanes). Visual characterization of fibres by typologies-corroborated by Raman spectroscopy-allowed classification and identification of 88% of AFs as cellulosic (57%), and synthetic polymers (PET) (31%). In all sampling stations, the only histopathological alterations were cysts of unknown etiology, and the most abundant parasites were nematodes. None of these alterations, parasite load, or other fish health indicators (condition indices) indicate an effect of AF ingestion.
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Affiliation(s)
- Oriol Rodríguez-Romeu
- Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - María Constenla
- Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain.
| | - Maite Carrassón
- Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - Mariano Campoy-Quiles
- Institut Ciencia de Materials de Barcelona (ICMAB-CSIC), Carrer Tillers S-N, Campus Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - Anna Soler-Membrives
- Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
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Góra P, Wąs-Gubała J. Enzymatic extraction of dyes for differentiation of red cotton fibres by TLC coupled with VSC. Sci Justice 2019; 59:425-432. [PMID: 31256814 DOI: 10.1016/j.scijus.2019.02.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 11/21/2018] [Accepted: 02/24/2019] [Indexed: 10/27/2022]
Abstract
The purpose of this work was to assess the usefulness of thin layer chromatography (TLC) for discriminating single cotton fibres dyed with red reactive dyes. An effective enzymatic extraction procedure with the use of cellulase for the red reactively-dyed cotton fibres was developed and used for the discrimination of fibres derived from 21 garments purchased commercially. Discrimination of the fibres relied on the separation of the extracted dyes by thin layer chromatography (TLC). Four eluents were used to develop the plates with the extracted dyes, and the obtained results were analysed using, among others, video spectral comparator (VSC). Observation of TLC plates in visible, ultraviolet and infrared light allowed unambiguous discrimination of 5 and probable discrimination of 6 of the 21 fibres tested. The remaining fibres were divided into several groups. Comparison of the acquired results with those obtained for the same examination material by standard non-destructive methods used in forensic fibres examinations (transmitted light microscopy, fluorescence microscopy, UV-Vis microspectrophotometry and Raman spectroscopy) has shown that efficiency in fibres differentiation is similar for all methods. TLC coupled with VSC was even found to be more effective in differentiation of red cotton fibres. The chemometric analysis was helpful to discriminate dyed cotton fibres, characterized by very similar colour.
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Affiliation(s)
- Paulina Góra
- Jagiellonian University, Department of Analytical Chemistry, Gronostajowa 2, 30-387 Krakow, Poland
| | - Jolanta Wąs-Gubała
- Institute of Forensic Research, Department of Criminalistics, Westerplatte 9, 31-033 Krakow, Poland.
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Mujumdar N, de la Peña AM, Campiglia AD. Classification of pre-dyed textile fibers exposed to weathering and photodegradation by non-destructive excitation-emission fluorescence spectroscopy paired with discriminant unfolded-partial least squares. Forensic Chem 2019. [DOI: 10.1016/j.forc.2018.11.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Sculpting neurotransmission during synaptic development by 2D nanostructured interfaces. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:2521-2532. [DOI: 10.1016/j.nano.2017.01.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 12/08/2016] [Accepted: 01/04/2017] [Indexed: 11/23/2022]
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15
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Blackie R, Taylor D, Linacre A. DNA profiles from clothing fibers using direct PCR. Forensic Sci Med Pathol 2016; 12:331-5. [DOI: 10.1007/s12024-016-9784-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2016] [Indexed: 10/21/2022]
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16
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Mirza JA, Park H, Park SY, Ye SJ. Use of radiochromic film as a high-spatial resolution dosimeter by Raman spectroscopy. Med Phys 2016; 43:4520. [DOI: 10.1118/1.4955119] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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17
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Differentiation of aged fibers by Raman spectroscopy and multivariate data analysis. Talanta 2016; 154:467-73. [PMID: 27154701 DOI: 10.1016/j.talanta.2016.04.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 04/01/2016] [Accepted: 04/05/2016] [Indexed: 11/22/2022]
Abstract
Raman spectroscopy followed by multivariate data analysis was used to analyze cotton fibers dyed using similar formulations and submitted to different aging conditions. Spectra were collected on a commercial instrument using a near-infrared laser with a 780nm light source. Discriminant analysis allowed to correctly classify the aged fibers 100% of the time. The prediction ability of the calculated model was estimated to be 100% by the "leave-one-out" cross-validation for 3 out of the 4 series under investigation. Finally, reliability of the developed approach for the discrimination of aged vs new fibers was confirmed by the analysis of commercial polyamide and polyester textiles submitted to the same aging process.
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Yao L, Zhang L, Wang R, Chou S, Dong Z. A new integrated approach for dye removal from wastewater by polyoxometalates functionalized membranes. JOURNAL OF HAZARDOUS MATERIALS 2016; 301:462-70. [PMID: 26410275 DOI: 10.1016/j.jhazmat.2015.09.027] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 09/01/2015] [Accepted: 09/13/2015] [Indexed: 05/13/2023]
Abstract
Membrane technique is a promising way for the removal of dyes from wastewater. A unique approach combining both the adsorptive and the catalytic membrane processes was proposed on the basis of a new functionalized membrane. The membrane integrating both the adsorptive and catalytic activities was developed by introducing polyoxometalates (POMs) as an ideal candidate for the membrane functionalization via a novel sol-gel method. A two-step protocol, adsorptive separation and catalytic degradation, was designed for dye removal, realizing an excellent dye rejection with easy and economic membrane regeneration through simply soaking the membrane in a limited volume of dilute oxidant solution. This approach is feasible and versatile owing to the flexible selection of distinct POMs and design of catalytic degradation routes as required. As a result, the current research provides insight into a new methodology of the membrane technique in dye removal applications.
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Affiliation(s)
- Lei Yao
- School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore; Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore
| | - Lizhi Zhang
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore
| | - Rong Wang
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore.
| | - Shuren Chou
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore
| | - ZhiLi Dong
- School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore.
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Buzzini P, Massonnet G. The analysis of colored acrylic, cotton, and wool textile fibers using micro-Raman spectroscopy. Part 2: comparison with the traditional methods of fiber examination. J Forensic Sci 2015; 60:712-20. [PMID: 25731068 DOI: 10.1111/1556-4029.12654] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 03/03/2014] [Accepted: 03/08/2014] [Indexed: 11/27/2022]
Abstract
In the second part of this survey, the ability of micro-Raman spectroscopy to discriminate 180 fiber samples of blue, black, and red cottons, wools, and acrylics was compared to that gathered with the traditional methods for the examination of textile fibers in a forensic context (including light microscopy methods, UV-vis microspectrophotometry and thin-layer chromatography). This study shows that the Raman technique plays a complementary and useful role to obtain further discriminations after the application of light microscopy methods and UV-vis microspectrophotometry and assure the nondestructive nature of the analytical sequence. These additional discriminations were observed despite the lower discriminating powers of Raman data considered individually, compared to those of light microscopy and UV-vis MSP. This study also confirms that an instrument equipped with several laser lines is necessary for an efficient use as applied to the examination of textile fibers in a forensic setting.
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Affiliation(s)
- Patrick Buzzini
- Forensic and Investigative Science Department, West Virginia University, 304 Oglebay Hall, PO Box 6121, Morgantown, WV, 26506-6121
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20
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Nam YS, Park JS, Lee Y, Lee KB. Application of micro-attenuated total reflectance Fourier transform infrared spectroscopy to ink examination in signatures written with ballpoint pen on questioned documents. J Forensic Sci 2014; 59:800-5. [PMID: 24661236 DOI: 10.1111/1556-4029.12405] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 04/09/2013] [Accepted: 04/20/2013] [Indexed: 11/29/2022]
Abstract
Questioned documents examined in a forensic laboratory sometimes contain signatures written with ballpoint pen inks; these signatures were examined to assess the feasibility of micro-attenuated total reflectance (ATR) Fourier transform infrared (FTIR) spectroscopy as a forensic tool. Micro-ATR FTIR spectra for signatures written with 63 ballpoint pens available commercially in Korea were obtained and used to construct an FTIR spectral database. A library-searching program was utilized to identify the manufacturer, blend, and model of each black ballpoint pen ink based upon their FTIR peak intensities, positions, and patterns in the spectral database. This FTIR technique was also successfully used in determining the sequence of homogeneous line intersections from the crossing lines of two ballpoint pen signatures. We have demonstrated with a set of sample documents that micro-ATR FTIR is a viable nondestructive analytical method that can be used to identify the origin of the ballpoint pen ink used to mark signatures.
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Affiliation(s)
- Yun Sik Nam
- Advanced Analysis Center, Korea Institute of Science and Technology, P.O. Box 131, Cheongryangri, Seoul, 136-791, Korea
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21
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Carey A, Rodewijk N, Xu X, van der Weerd J. Identification of Dyes on Single Textile Fibers by HPLC-DAD-MS. Anal Chem 2013; 85:11335-43. [DOI: 10.1021/ac402173e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alex Carey
- Departments of
Chemical Analysis
and Microtraces, Netherlands Forensic Institute, P.O. Box 24044, 2490AA The Hague, The Netherlands
| | - Nicole Rodewijk
- Departments of
Chemical Analysis
and Microtraces, Netherlands Forensic Institute, P.O. Box 24044, 2490AA The Hague, The Netherlands
| | - Xiaoma Xu
- Departments of
Chemical Analysis
and Microtraces, Netherlands Forensic Institute, P.O. Box 24044, 2490AA The Hague, The Netherlands
| | - Jaap van der Weerd
- Departments of
Chemical Analysis
and Microtraces, Netherlands Forensic Institute, P.O. Box 24044, 2490AA The Hague, The Netherlands
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22
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Buzzini P, Massonnet G. The Discrimination of Colored Acrylic, Cotton, and Wool Textile Fibers Using Micro-Raman Spectroscopy. Part 1:In situDetection and Characterization of Dyes. J Forensic Sci 2013; 58:1593-600. [DOI: 10.1111/1556-4029.12298] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 10/02/2012] [Accepted: 11/24/2012] [Indexed: 11/30/2022]
Affiliation(s)
- Patrick Buzzini
- Forensic and Investigative Science Program; West Virginia University; 304 Oglebay Hall PO Box 6121 Morgantown WV 26506-6121
| | - Genevieve Massonnet
- Ecole des Sciences Criminelles; University of Lausanne; Batochime Quartier UNIL Sorge CH-1015 Lausanne Switzerland
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23
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Gardner P, Bertino M, Weimer R, Hazelrigg E. Analysis of lipsticks using Raman spectroscopy. Forensic Sci Int 2013; 232:67-72. [DOI: 10.1016/j.forsciint.2013.07.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 06/12/2013] [Accepted: 07/05/2013] [Indexed: 01/25/2023]
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24
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de Almeida MR, Correa DN, Rocha WF, Scafi FJ, Poppi RJ. Discrimination between authentic and counterfeit banknotes using Raman spectroscopy and PLS-DA with uncertainty estimation. Microchem J 2013. [DOI: 10.1016/j.microc.2012.03.006] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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25
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Boyd S, Bertino MF, Ye D, White LS, Seashols SJ. Highly sensitive detection of blood by surface enhanced Raman scattering. J Forensic Sci 2013; 58:753-6. [PMID: 23488826 DOI: 10.1111/1556-4029.12120] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2011] [Revised: 03/19/2012] [Accepted: 04/21/2012] [Indexed: 11/29/2022]
Abstract
Raman spectroscopy for forensic body fluid analysis has received some attention due to the nondestructive nature and potential application for identification at the crime scene; however, its usage has been limited by low detection sensitivity. Surface enhanced Raman scattering (SERS) was evaluated for blood identification for forensic applications. Specifically, a SERS-active substrate was fabricated, composed of nickel nanotips coated with Ag nanoparticles. Compared with a conventional substrate, the SERS substrate enhanced Raman scattering by more than two orders of magnitude and allowed blood to be identified to a dilution of 1:100,000. Blood was also successfully detected by swabbing the SERS substrate directly on mock evidence. Most importantly, Raman spectra obtained by swabbing the SERS substrate on blood stains were free of luminescence even when blood was deposited on luminescent fabrics. The nondestructive character, simplicity of sample preparation, and high sensitivity make SERS a prime candidate for field and laboratory-based blood identification.
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Affiliation(s)
- Samantha Boyd
- Department of Forensic Science, Virginia Commonwealth University, Box 843079, Richmond, VA 23284, USA
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26
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Raman spectroscopy and microspectrophotometry of reactive dyes on cotton fibres: Analysis and detection limits. Forensic Sci Int 2012; 222:200-7. [DOI: 10.1016/j.forsciint.2012.05.025] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 05/22/2012] [Accepted: 05/28/2012] [Indexed: 11/23/2022]
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27
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On the frequency of occurrence of a peculiar polyester fibre type found in blue denim textiles. Sci Justice 2011; 51:154-62. [DOI: 10.1016/j.scijus.2011.02.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 02/08/2011] [Accepted: 02/14/2011] [Indexed: 11/30/2022]
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28
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Yu MML, Sandercock PML. Principal Component Analysis and Analysis of Variance on the Effects of Entellan New on the Raman Spectra of Fibers. J Forensic Sci 2011; 57:70-4. [DOI: 10.1111/j.1556-4029.2011.01951.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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De Wael K, Vanden Driessche T. Dichroism measurements in forensic fibre examination. Sci Justice 2011; 51:57-67. [DOI: 10.1016/j.scijus.2010.10.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Revised: 10/01/2010] [Accepted: 10/04/2010] [Indexed: 11/28/2022]
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30
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Markstrom LJ, Mabbott GA. Obtaining absorption spectra from single textile fibers using a liquid crystal tunable filter microspectrophotometer. Forensic Sci Int 2011; 209:108-12. [DOI: 10.1016/j.forsciint.2011.01.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Revised: 01/03/2011] [Accepted: 01/10/2011] [Indexed: 10/18/2022]
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31
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Zięba-Palus J, Wąs-Gubała J. An investigation into the use of micro-Raman spectroscopy for the analysis of car paints and single textile fibres. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2010.12.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Raman spectroscopy of blood samples for forensic applications. Forensic Sci Int 2011; 208:124-8. [PMID: 21208757 DOI: 10.1016/j.forsciint.2010.11.012] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2010] [Revised: 10/06/2010] [Accepted: 11/22/2010] [Indexed: 01/25/2023]
Abstract
We investigated Raman scattering from human blood as a function of parameters that are relevant for forensic field analysis, such as substrate, sample dilution, individual from which the sample originates, and age of the sample. Peaks characteristic of blood components and in particular the hemoglobin peaks were routinely detected when blood was deposited on substrates that are not strongly luminescent, such as plastic, metal utensils and dry wall. Raman scattering from blood proved quite sensitive and blood samples with a dilution up to 1:250 could be measured for an excitation power of ∼2 mW measured at the sample plane. The sensitivity of Raman scattering to diluted blood allowed measurement using blood reconstituted from fabric substrates, thereby alleviating issues related to luminescence and scattering from the substrate. The dependence of Raman scattering on sample age and individual was also investigated. We found that the relative intensities of scattering peaks depended on sample age and history. For example, the relative intensity of oxyhemoglobin peaks decreases after blood has dried. Fresh blood drawn directly from a donor without intermediate storage exhibits also scattering peaks at 1155 and 1511 cm(-1) which disappear after drying. The origin of these peaks is under investigation. We noticed, however, that they were not found in blood that had been stored for longer than one week in EDTA containers before analysis, thus requiring the use of fresh blood for future studies and validation purposes. The relative intensity of scattering peaks was also found to be somewhat dependent on the donor and, for a same donor, on the day on which blood was drawn.
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33
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Resonance Raman and UV–visible spectroscopy of black dyes on textiles. Forensic Sci Int 2010; 202:54-63. [DOI: 10.1016/j.forsciint.2010.04.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2009] [Revised: 04/13/2010] [Accepted: 04/13/2010] [Indexed: 11/20/2022]
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34
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Application of micro-attenuated total reflectance FTIR spectroscopy in the forensic study of questioned documents involving red seal inks. Forensic Sci Int 2010; 199:6-8. [DOI: 10.1016/j.forsciint.2010.02.009] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2009] [Revised: 01/21/2010] [Accepted: 02/09/2010] [Indexed: 11/20/2022]
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35
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Affiliation(s)
- T. A. Brettell
- Department of Chemical and Physical Sciences, Cedar Crest College, 100 College Drive, Allentown, Pennsylvania 18104-6196
| | - J. M. Butler
- Biochemical Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8312
| | - J. R. Almirall
- Department of Chemistry and Biochemistry and International Forensic Research Institute, Florida International University, University Park, Miami, Florida 33199
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36
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Hanson EK, Lubenow H, Ballantyne J. Identification of forensically relevant body fluids using a panel of differentially expressed microRNAs. Anal Biochem 2009; 387:303-14. [PMID: 19454234 DOI: 10.1016/j.ab.2009.01.037] [Citation(s) in RCA: 267] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2009] [Revised: 01/23/2009] [Accepted: 01/24/2009] [Indexed: 12/14/2022]
Abstract
The serology-based methods routinely used in forensic casework for the identification of biological fluids are costly in terms of time and sample and have varying degrees of sensitivity and specificity. Recently, the use of a molecular genetics-based approach using messenger RNA (mRNA) profiling has been proposed to supplant conventional methods for body fluid identification. However, the size of the amplification products used in these mRNA assays (approximately 200-300 nt) might not be ideal for use with degraded or compromised samples frequently encountered in forensic casework. Recently, there has been an explosion of interest in a novel class of small noncoding RNAs, microRNAs (miRNAs, approximately 20-25 bases in length), with numerous published studies reporting that some miRNAs are expressed in a tissue-specific manner. In this article, we provide the first comprehensive evaluation of miRNA expression in dried, forensically relevant biological fluids--blood, semen, saliva, vaginal secretions, and menstrual blood--in an attempt to identify putative body fluid-specific miRNAs. Most of the 452 human miRNAs tested (approximately 67% of the known miRNAome) were either expressed in multiple body fluids or not expressed at all. Nevertheless, we have identified a panel of nine miRNAs--miR451, miR16, miR135b, miR10b, miR658, miR205, miR124a, miR372, and miR412--that are differentially expressed to such a degree as to permit the identification of the body fluid origin of forensic biological stains using as little as 50 pg of total RNA. The miRNA-based body fluid identification assays were highly specific because the miRNA expression profile for each body fluid was different from that obtained from 21 human tissues. The results of this study provide an initial indication that miRNA profiling may provide a promising alternative approach to body fluid identification for forensic casework.
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Affiliation(s)
- Erin K Hanson
- Graduate Program in Biomolecular Science, University of Central Florida, Orlando, FL 32816, USA
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