Repair of damaged hair protein fiber by jointly using transglutaminase and keratin

Li, Ziyuan; Xiao, Jing

doi:10.2306/scienceasia1513-1874.2021.016

Cited by 3 publications

(7 citation statements)

References 21 publications

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“…The Young modulus (E) was calculated using the relation between the applied stress and the sample strain. The determination of mechanical parameters was obtained from 10 individual measurements of each treatment [47] …”

Section: Methodsmentioning

confidence: 99%

“…The samples were randomly analyzed within a 10 μm×10 μm area by the cantilever of the AFM with SPM‐9700 (Shimadzu, Tokyo, Japan) scanner of 30 μm. The scanning model used was the contact, and the tips used were of SiNi type with a resonance frequency equal to 10 kHz and a constant of elasticity of 0.06 N.m −1 provided by NanoWorld [47,48] …”

Section: Methodsmentioning

confidence: 99%

“…The determination of mechanical parameters was obtained from 10 individual measurements of each treatment. [47]…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…The scanning model used was the contact, and the tips used were of SiNi type with a resonance frequency equal to 10 kHz and a constant of elasticity of 0.06 N.m À 1 provided by NanoWorld. [47,48]…”

Section: Atomic Force Microscopymentioning

confidence: 99%

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Genipa americana L.: A New Phytochemical for White Hair Coloring

Machado,

Menezes,

Santana

et al. 2023

Chemistry & Biodiversity

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This work describes a new hair dyeing methodology using a chemical reaction between geniposide, an iridoid glycoside extracted from the fruit of Genipa americana (geniposide extract, GE) and the amine group of hair keratin. The influence of reaction conditions (pH, temperature, and extract concentration) on the staining of hair fibers, color development, fiber morphology, and mechanical hair properties of black and white human hair samples, was evaluated before and after GE dyeing treatment. Eye contact safety of GE was also studied using HET‐CAM. The treatment of white hair fibers using GE at 20 mg mL−1, temperature of 80 °C and pH 5.5 presented the greatest color change (ΔE=54.0). The higher pH influence was observed at pH 10.0 on white hair tresses (ΔE=6.8), using an GE concentration of 20 mg mL−1 and room temperature (25 °C). Treated samples showed marked changes on mechanical and morphological properties. The HET‐CAM did not show any change, thus demonstrating that using GE is safe. In conclusion, the temperature and concentration of the extract were the variables that mostly influenced the color and hair damage. A new approach for hair dyeing was established where iridoids may potentially be useful as a natural hair dyeing.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…The determination of mechanical parameters was obtained from 10 individual measurements of each treatment. [47]…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Section: Atomic Force Microscopymentioning

confidence: 99%

See 2 more Smart Citations

Genipa americana L.: A New Phytochemical for White Hair Coloring

Machado,

Menezes,

Santana

et al. 2023

Chemistry & Biodiversity

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“…The combination of TG-KRS produced the best results in smoothing the damaged hair's surface using AFM pictures, it was determined (Fig 9). It demonstrates that the application of the TG-KRS combined repair solution to damaged hair induces a significant amount of keratin or keratin peptides to cross-link into those places under the control of the TG enzyme or by protein disulfide bond recombination [47]. Another study looked at the effects of five different pentapeptide types with varied amino acid sequences on hair restoration.…”

Section: Repairing Damaged Hairmentioning

confidence: 99%

The Chemistry Mechanism of Hair Dyes

Yıldırım¹,

DEMİR²,

İZGİ³

et al. 2022

Middle East Journal of Science

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One of the oldest and most well-known cosmetics, hair color has been used by numerous ancient cultures throughout history on both men and women. It involves treating hair with various chemical compounds for changing hair color. According to how long they remain in the hair, these products are primarily divided into two categories: temporary and permanent. This classification is consistent with the types of active substances used in the dyeing process as well as the dyeing method itself, which are referred to as non-oxidative and oxidative hair dye products, respectively. Permanent hair dyes often consist of active chemicals that are not dyed but are oxidized to provide the desired color. As a result, the phrase "oxidative hair dye" was emerged. The precursor part and coupler part are the two main ingredients in formulations for oxidative hair dyes. Quinonediimine intermediates are momentary compounds that are generated when combined with hydrogen peroxide (developer). As a result, the coupler agent and these compounds interact to form the appropriate hair dye molecule. Notably, the entire dyeing process requires both an alkaline medium and an oxidizing agent, often hydrogen peroxide, to ensure that the staining agents reach the cuticle widely. This review's objective is to provide information about hair dye formulations and mechanisms of action as well as repairing damaged hair and new applications.

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Enzymatic Crosslinking of Amino Acids Improves the Repair Effect of Keratin on Hair Fibre

Liu

Xiao

2023

Polymers

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Although keratin can effectively repair hair fibres and enhance their moisture content and flexibility, it has a relatively low affinity for hair. In this study, the effects of transglutaminase (TGase)—commonly used to catalyse crosslinking of proteins or amino acids—in crosslinking serine and hydrolysed wool keratin to repair damaged hair and protect healthy hair were studied. Treatment with a repair solution containing hydrolysed wool keratin, serine, and TGase improved the physical and chemical properties of damaged hair samples. The alkali solubility of damaged hair samples decreased by 50.53%, fracture stress increased from 1.031 to 1.806 N, and fracture strain increased from 9.51 to 19.88 mm. Fourier transform infrared spectroscopy and X-ray analysis showed that amide bonds increased in damaged hair samples treated with the repair solution and hair crystallinity increased. Differential scanning calorimetry showed that the repair solution improved the thermal stability of damaged hair. After five cycles of washing, the effects of the repair solution were still apparent in damaged hair samples. The enzymatic solution had stronger repair effects than general hair care products and reduced water loss rates in damaged hair samples; repaired hair samples were also softer and brighter. The repair solution was effective in protecting healthy hair samples against chemical damage. The materials used to prepare the repair solution are all bio-based, and treatment with this product is safer and longer lasting.

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Repair of damaged hair protein fiber by jointly using transglutaminase and keratin

Cited by 3 publications

References 21 publications

Genipa americana L.: A New Phytochemical for White Hair Coloring

Genipa americana L.: A New Phytochemical for White Hair Coloring

The Chemistry Mechanism of Hair Dyes

Enzymatic Crosslinking of Amino Acids Improves the Repair Effect of Keratin on Hair Fibre

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