Characterization by Raman and infrared spectroscopy and fluorescence microscopy of human hair treated with cosmetic products

Santos, Jordana Dias dos; Pinto, Paulo Ferreira; Edwards, Howell G. M.; Oliveira, Luiz Fernando Cappa de

doi:10.1016/j.saa.2022.121577

Cited by 10 publications

(8 citation statements)

References 29 publications

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“…To analyze the permeation of cosmetics in the hair fiber, Dias Santos used a combination of Raman, IR, and fluorescence microspectroscopy. 104 They tested four different cosmetic products to determine how they interacted with the hair. Raman spectroscopy was able to determine that the congregation of the products was primarily at the cuticle and evaluated the permeation of the cosmetics through the hair.…”

Section: T H Imentioning

confidence: 99%

“…Using multivariant statistical analysis, they were able to discriminate among hair types with 96–100% accuracy. To analyze the permeation of cosmetics in the hair fiber, Dias Santos used a combination of Raman, IR, and fluorescence microspectroscopy . They tested four different cosmetic products to determine how they interacted with the hair.…”

Section: Chemistry: Trace Evidencementioning

confidence: 99%

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Innovative Vibrational Spectroscopy Research for Forensic Application

et al. 2023

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Section: T H Imentioning

confidence: 99%

Section: Chemistry: Trace Evidencementioning

confidence: 99%

Innovative Vibrational Spectroscopy Research for Forensic Application

et al. 2023

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“…Furthermore, Esparza and co-workers showed that SERS could be used to detect the underlying dyes if the hair was recolored afterward . Several research groups showed that IR spectroscopy also has premise in forensic hair analysis. − For example, IR spectroscopy could be used to identify the types of amino acids present in hair samples, which can be useful in identifying the source of the hair and in distinguishing human hair from animal hair. , Recently, Boll and co-workers found that different types and brands of colorants could be identified on hair using IR spectroscopy . It was also demonstrated that IR primarily detected keratin of hair rather than vibrational signatures of the colorants themselves .…”

Section: Introductionmentioning

confidence: 99%

“… 12 Several research groups showed that IR spectroscopy also has premise in forensic hair analysis. 17 − 20 For example, IR spectroscopy could be used to identify the types of amino acids present in hair samples, which can be useful in identifying the source of the hair and in distinguishing human hair from animal hair. 17 , 18 Recently, Boll and co-workers found that different types and brands of colorants could be identified on hair using IR spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Role of Race/Ethnicity, Sex, and Age in Surface-Enhanced Raman Spectroscopy- and Infrared Spectroscopy-Based Analysis of Artificial Colorants on Hair

Holman

Kurouski

2023

ACS Omega

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Forensic microscopy has been used in forensic hair analysis to determine the racial origin of hair samples. However, this technique is subjective and often inconclusive. Although, to a large extent, this problem can be solved with the use of DNA analysis, which is capable of identifying the genetic code, biological sex, and racial origin from a strand of hair, this PCR-based analysis of hair is time-and labor-consuming. Infrared (IR) spectroscopy and surface-enhanced Raman spectroscopy (SERS) are emerging analytical techniques that can be used to advance forensic analysis of hair by enabling confirmatory identification of hair colorants.Having said that, it remains unclear whether the race/ethnicity, sex, and age of individuals should be considered upon IR spectroscopyand SERS-based analysis of hair. Our results showed that both techniques enabled robust and reliable analyses of hair of different races/ethnicities, sexes, and age groups colored using four different permanent and semipermanent colorants. We also found that SERS could be used to identify the race/ethnicity, sex, and age of the individuals via spectroscopic analysis of colored hair, whereas IR spectroscopy was capable of accurately revealing this important anthropological information only from uncolored hair. These results outlined some advantages and limitations of both vibrational techniques in the forensic examination of hair samples.

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“…Pores form inside hair due to oxidative damage or heat, and as the damage becomes more severe, the volume and size of the pores increase [15]. These internal pores are also observed in SEM images [9,16] and Raman spectral images [17]. Meanwhile, in the case of optical microscopy, pores inside hair can be easily discovered using a simple method because light is scattered due to changes in the refractive index of the medium.…”

Section: Introductionmentioning

confidence: 99%

Hair Pores Caused by Surfactants via the Cell Membrane Complex and a Prevention Strategy through the Use of Cuticle Sealing

Song,

Park,

Jeon

et al. 2023

Cosmetics

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In this study, we discovered that washing hair with surfactants causes a decrease in the internal density of hair, and we propose a cuticle-sealing strategy to inhibit this phenomenon. This phenomenon was revealed based on optical analyses such as optical microscopy, scanning electron microscopy (SEM), drop shape analysis, atomic force microscopy (AFM), and single hair analysis. Repeated treatment with surfactants creates areas of low density within the hair. Additionally, treatment with low-molecular-weight materials resulted in replenishment of the internal density of the hair. It has been shown that the more severe the degree of cuticle lifting, the more the internal density of the hair is reduced by surfactants. In addition, the study confirmed that a decrease in internal density could be prevented by sealing the cell membrane complex (CMC), and it was suggested that this reduced internal density may reflect the pore structure of hair. This study investigates the mass transfer phenomenon that occurs in hair and proposes a strategy to maintain hair homeostasis.

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Characterization by Raman and infrared spectroscopy and fluorescence microscopy of human hair treated with cosmetic products

Cited by 10 publications

References 29 publications

Innovative Vibrational Spectroscopy Research for Forensic Application

Innovative Vibrational Spectroscopy Research for Forensic Application

Role of Race/Ethnicity, Sex, and Age in Surface-Enhanced Raman Spectroscopy- and Infrared Spectroscopy-Based Analysis of Artificial Colorants on Hair

Hair Pores Caused by Surfactants via the Cell Membrane Complex and a Prevention Strategy through the Use of Cuticle Sealing

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