This paper describes a method for obtaining information that can contribute to individual identification from a single hair colored with a hair dye product using a combination of surface-enhanced Raman scattering (SERS) and X-ray fluorescence (XRF) analyses. SERS and XRF spectra of single hog hairs colored with several commercially available hair dye products were measured. SERS spectral patterns tended to be different depending on the hair dye products used for hair coloring. However, SERS spectral patterns of single hog hairs colored with different hair dye products that would produce similar types of dyes were similar. By performing XRF analysis, characteristic metallic elements originating from some hair dye products were detected. Therefore, XRF can contribute to identifying the difference among colored hairs that cannot be identified only by SERS. SERS and XRF analyses of a single shed hair can contribute to individual identification used in forensic science.
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http://dx.doi.org/10.2116/analsci.20P144 | DOI Listing |
Contact Dermatitis
January 2025
Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Forensic Sci Med Pathol
January 2025
School of Biochemistry and Biotechnology, University of the Punjab, Lahore, Pakistan.
Matrix-assisted laser Desorption/Ionization Mass Spectrometry Imaging (MALDI MSI) is an analytical technique used for the spatial mapping of drugs, explosives, and organic samples, making it a game-changer in Forensic examination. It detects a wide range of biomolecules in their native state without specific tags, antibodies, labels, and dyes. This review aims to highlight the advancement of MALDI-MSI over time and its impact on Forensic Science due to high-resolution molecular imaging.
View Article and Find Full Text PDFContact Dermatitis
January 2025
Department of Dermatology, Tokyo Medical University, Tokyo, Japan.
Background Cosmetics have become an integral part of the contemporary lifestyle. Contact dermatitis (CD) is an inflammatory skin disease resulting from exposure to an external chemical present in cosmetics. A patch test is considered the criterion standard method for detecting CD.
View Article and Find Full Text PDFTurk J Pharm Sci
January 2025
Ras Al Khaimah Medical and Health Sciences University, RAK College of Pharmacy, Department of Clinical Pharmacy and Pharmacology, Ras Al Khaimah, United Arab Emirates.
Objectives: This study aimed to assess the general population's knowledge, attitudes, and practices regarding hair dye (HD) usage and its adverse effects in the Northern Emirates of the United Arab Emirates.
Materials And Methods: A cross-sectional study was conducted over 3 months in the general population of Ras Al Khaimah. Information was collected by administering a pre-validated self-administered questionnaire related to HDs.
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