Investigation of dyeing behavior of oxidative dye in fine structures of the human hair cuticle by nanoscale secondary ion mass spectrometry

Kojima, Toru; Yamada, Hiromi; Saito, Yûsuke; Nawa, Teppei; Isobe, Mitsuru; Yamamoto, Tomoko; Aoki, Dan; Matsushita, Yasuyuki; Fukushima, Kazuhiko

doi:10.1111/srt.12192

Cited by 5 publications

(3 citation statements)

References 31 publications

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“…Information on the dyeing regions of the colorants and the dyeing degree in those regions is valuable. Kojima et al have investigated dyeing features using deuterium-labeled oxidative hair dye 49,50) . Deuterium ions were detected in the entire hair cross section and more intensely so in granular melanin.…”

Section: Uyamamentioning

confidence: 99%

Recent Progress in Hair Science and Trichology

Uyama

2024

J. Oleo Sci.

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IntroductionHuman scalp hair has a lot of important functions. Seasonal variations in hair growth and goosebumps caused by cold stimuli or emotions point to its evolutionary history 1,2) . The main function of hair is to protect our head and neck from sunlight (mainly UV rays) , thermal pain (extreme heat/cold) , and physical damage 3,4) . Hair is also essential as an excretory system for trace metals and acts as an accumulating tissue. Thus, the metal content in hair can reflect the body s condition for a long period, recording the history of personal exposure to metals 5−8) . Last but not least, hair style is deeply tied to gender 9−12) , religion, and culture, as we arrange our hair as we want to complete our entire look. It is said that the first barbering services were performed in ancient Egypt in 5000 B.C. with tools made from oyster shells or sharpened flint. In ancient Egyptian culture, barbers were highly respected individuals and surgeons were said to also serve as barbers. In addition to this, the earliest records on the usage of henna as a hair dye go back to ancient Egypt, where people used henna to decorate and color their hair and nails 13) . In Japan, people

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Section: Uyamamentioning

confidence: 99%

Recent Progress in Hair Science and Trichology

Uyama

2024

J. Oleo Sci.

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“…Academic studies that attempt to address them continue to appear. For example, nanoscale mass spectrometry was used to image the penetration and distribution of oxidative coloration produced by PPD and 2M5AP within the hair cuticle 184 . Techniques based on keratin film have been explored as a means of screening colorants to discover those with the potential to diffuse most readily into hair, although the work reported so far does not extend to oxidative actives 185 .…”

Section: Alternative Technologiesmentioning

confidence: 99%

A review of developments in industrial hair colorant actives for oxidative dyes

Towns

2021

Coloration Technology

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This paper reviews developments in industrial colorants as active ingredients of commercial products that rely on oxidative chemistry for the coloration of human hair. After outlining the regulatory challenges faced by the industry, which are shaping the landscape of colorant usage, the most commercially important actives utilised in oxidative hair colorant formulations are surveyed from the perspective of their chemistry and economics. Some developments in the form of recently introduced actives are also described.

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“…Because the hair cuticle is the layer most affected by the components of hair products, such as dye molecules, several hair cuticle analyses focus on the effects of cosmetic treatments. For example, Kojima et al investigated the penetration and distribution of dyes in the hair cuticle using Nanoscale SIMS, finding that the endocuticle contained more dye molecules than the other cuticle structures [109]. Such studies help to shed light on the mechanisms underlying different cosmetic treatments, providing insights that are relevant to the development of, for example, hair dyeing products.…”

Section: Hair Cuticle Analysismentioning

confidence: 99%

Mapping the Chemistry of Hair Strands by Mass Spectrometry Imaging—A Review

et al. 2021

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Hair can record chemical information reflecting our living conditions, and, therefore, strands of hair have become a potent analytical target within the biological and forensic sciences. While early efforts focused on analyzing complete hair strands in bulk, high spatial resolution mass spectrometry imaging (MSI) has recently come to the forefront of chemical hair-strand analysis. MSI techniques offer a localized analysis, requiring fewer de-contamination procedures per default and making it possible to map the distribution of analytes on and within individual hair strands. Applying the techniques to hair samples has proven particularly useful in investigations quantifying the exposure to, and uptake of, toxins or drugs. Overall, MSI, combined with optimized sample preparation protocols, has improved precision and accuracy for identifying several elemental and molecular species in single strands of hair. Here, we review different sample preparation protocols and use cases with a view to make the methodology more accessible to researchers outside of the field of forensic science. We conclude that—although some challenges remain, including contamination issues and matrix effects—MSI offers unique opportunities for obtaining highly resolved spatial information of several compounds simultaneously across hair surfaces.

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Investigation of dyeing behavior of oxidative dye in fine structures of the human hair cuticle by nanoscale secondary ion mass spectrometry

Cited by 5 publications

References 31 publications

Recent Progress in Hair Science and Trichology

Recent Progress in Hair Science and Trichology

A review of developments in industrial hair colorant actives for oxidative dyes

Mapping the Chemistry of Hair Strands by Mass Spectrometry Imaging—A Review

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