Green chemistry method for hair strengthening and setting using visible light-mediated protein crosslinking

Kim, Seo Young; Kim, Jae Hak; Kang, Yeyoung; Yoo, Jae Won; Choi, Joonho; Lee, Hyun Jong

doi:10.1016/j.jclepro.2022.132535

Cited by 5 publications

(23 citation statements)

References 21 publications

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“…In the previous paper, the concentrations of CA and polyols were found to be close to the maximum usable concentrations in commercial products . In this study, optimal concentrations were investigated to induce the efficient binding of each component.…”

Section: Resultsmentioning

confidence: 91%

“…In sustainable personal care products, it is as crucial to change the operating mechanism to make it eco-friendly as it is to replace existing synthetic materials with eco-friendly materials. In methods currently used for permanent hair waves, the keratin disulfide bonds are restructured using environmentally unfriendly chemicals, such as TGA. − In our previous study, RFP was used in a visible light-mediated protein cross-linking method to modify the hair chemical bonding using eco-friendly ingredients . It was demonstrated that keratin cross-linking can be achieved for safely and nontoxically setting and strengthening hair.…”

Section: Resultsmentioning

confidence: 99%

“…The hair was treated with nine types of solutions as CA was set to 0.5%, 1%, and 3% w/v with sorbitol concentration adjustments of 1%, 3%, and 5% w/v. Following the previous experimental method, hair was immersed in the treatment solution for 60 min to induce cross-linking, followed by 5 min irradiation with blue light . The nontreatment group was produced by soaking hair in PBS instead of the treatment solution for 60 min.…”

Section: Methodsmentioning

confidence: 99%

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Visible Light-Mediated Environmentally Friendly and Universally Applicable Green Chemistry for Hair Cross-Linking

Kim

Choi³

et al. 2023

ACS Sustainable Chem. Eng.

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The cosmetics industry is experiencing a rise in the demand for eco-friendly products due to growing environmental awareness. In response, eco-friendly forms of raw materials, production processes, and packaging have been developed. For hair products, the research focus is on a harmless method of crosslinking hair using eco-friendly raw materials. In this regard, we have recently proposed clean and nontoxic one-step protein crosslinking using eco-friendly chemicals composed of riboflavin phosphate (RFP), citric acid (CA), and polyols. In this study, we further explored the optimal concentration that induced maximum hair cross-linking by adjusting the ratio of CA, isopentyldiol (IPD), and sorbitol required for hair keratin protein cross-linking. Various combinations of CA in the range of 0.5−3% and IPD and sorbitol in the range of 1−5% were used to induce RFP-mediated photo-cross-linking. As a result, the combination of CA 3%, IPD 5%, and sorbitol 3% induced optimal cross-linking and increased tensile stress and Young's modulus of hair by 41% and 44%, respectively. In addition, RFP treatment was applied to black, brown, and blond hair to confirm the variation in the photo-cross-linking reaction according to hair color. Photo-cross-linking was successfully induced in the hair of all colors, and the increase in mechanical properties and hair-setting effect were verified. Hair color had no discernible impact on visible light-mediated cross-linking. Lastly, we demonstrated that the visible light-mediated cross-linking method we developed can be used for any hair color, and it is expected to be widely adopted as an environmentally friendly hair care product.

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Visible Light-Mediated Environmentally Friendly and Universally Applicable Green Chemistry for Hair Cross-Linking

Kim

Choi³

et al. 2023

ACS Sustainable Chem. Eng.

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“…Kim et al performed the RFP-induced crosslinking of keratin proteins [ 47 ]. The thiol group of the cysteine residue, which is abundant in keratin, participated in crosslinking using photoexcited RFP, and the crosslinking efficiency was increased using citric acid as a crosslinker.…”

Section: Riboflavin-induced Photochemistrymentioning

confidence: 99%

“…Keratin protein crosslinking has been demonstrated to be effective in strengthening and setting hair [ 47 ]. Compared with permanent hair waving methods that use chemicals such as thioglycolic acid, it has limitations in maintaining hair curls.…”

Section: Biomedical Applicationsmentioning

confidence: 99%

Green Chemistry for Crosslinking Biopolymers: Recent Advances in Riboflavin-Mediated Photochemistry

et al. 2023

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Riboflavin (RF), which is also known as vitamin B2, is a water-soluble vitamin. RF is a nontoxic and biocompatible natural substance. It absorbs light (at wavelengths of 380 and 450 nm) in the presence of oxygen to form reactive singlet oxygen (1O2). The generated singlet oxygen acts as a photoinitiator to induce the oxidation of biomolecules, such as amino acids, proteins, and nucleotides, or to initiate chemical reactions, such as the thiol-ene reaction and crosslinking of tyramine and furfuryl groups. In this review, we focus on the chemical mechanism and utilization of the photochemistry of RF, such as protein crosslinking and hydrogel formation. Currently, the crosslinking method using RF as a photoinitiator is actively employed in ophthalmic clinics. However, a significant broadening is expected in its range of applications, such as in tissue engineering and drug delivery.

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Let’s not split hairs

Cowell

2023

Nat Rev Chem

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Green chemistry method for hair strengthening and setting using visible light-mediated protein crosslinking

Cited by 5 publications

References 21 publications

Visible Light-Mediated Environmentally Friendly and Universally Applicable Green Chemistry for Hair Cross-Linking

Visible Light-Mediated Environmentally Friendly and Universally Applicable Green Chemistry for Hair Cross-Linking

Green Chemistry for Crosslinking Biopolymers: Recent Advances in Riboflavin-Mediated Photochemistry

Let’s not split hairs

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