ACS Applied Engineering Materials
·
2024
·
IF 0
Yuwen Wu,Ling Ma,Zhizhen Li,Timson Chen,Kuan Chang,Sridhar Komarneni,Jing Wang
Plant-based colorants in hair dyeing are popular due to their lower toxicity for health and the environment compared to conventional chemically synthesized dyes. However, the application of plant colorants in hair dyeing is limited due to their low adsorption and poor fastness. In this study, we aimed to enhance the hair dyeing performance of a plant-based colorant (curcumin) by prelinking thiol groups (referred to as “click dyeing”) and investigated the dyeing effect and restorative function. The results demonstrated that click dyeing significantly improved curcumin’s coloring ability and color fastness, with the retention ratio of color reaching 80% after seven shampoo washes. Additionally, click dyeing enhanced the mechanical properties of the bleached hair and reduced keratin loss. Fluorescence labeling experiments confirmed that curcumin reacted with the introduced thiol groups through a thiol-Michael click reaction. After click dyeing, the mechanical properties of the hair fibers were repaired due to the formation of chemical bonds during the click reaction, resulting in a 9.81% increase in tensile strength compared to bleached hair before the hair dyeing process. The mechanism behind this enhancement lies in the restoration of the keratin conformation by click dyeing, bringing various properties back to their original state. Furthermore, the study verified curcumin’s ability to resist photoaging through xenon arc lamp radiation and electron spin resonance (ESR) spectroscopy.
研究领域:
生物化学
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材料科学
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化妆品科学
✓ 已验证
DOI
FIBERS AND POLYMERS
·
2021
·Vol. 22
·期 1
·141-148
·
IF 2.153
Jia Weini,Li Shirong,Luo Zhengxin,Yu Hainan,Zhu Wenjun,Mao Qinghui,Zhang Xiaoli,Liang Zhijie,Dong Aixue
Due to the damage of scalp because of chemical dyes, increasing attention had been paid to the ecological dyeing of human hair. To address the need for ecological restoration and dyeing of human hair, herein, a novel approach has been proposed via laccase-mediated in situ oxidation of dihydroxy phenylalanine (dopamine). As laccase can catalyze dopamine oxidation and then polymerization to produce strongly colored polymers, different biological coloration processes of human hair based on this process were investigated: (i) Human hair was treated with laccase alone; (ii) The absorption of human hair with dopamine, followed by further catalysis of air; (iii) The absorption of human hair with dopamine, followed by further catalysis of laccase; (iv) Simultaneous laccase-mediated polymerization and dyeing of human hair; and (v) Polymerization of Dopamine with laccase and then dyeing human hair. The surface properties of dyed hair were evaluated in terms of ultraviolet (UV)-protection, color fastness, Fourier transforming infrared spectrum (FT-IR), optical microscope, and scanning electron microscopy (SEM). The results show that best hair dyeing effect was achieved via simultaneous laccase-mediated polymerization and dyeing. The dyed hair obtained K/S values of 28, light fastness of level 5, and UPF of 100 + . The optical microscope and SEM observations show that the surface of colored hair fibers was covered with thin burrs, which can be attributed to polydopamine attached with physical adhesive force and covalent reaction. FT-IR analysis shows that functional groups were present on the surface of the dyed hair which can be considered as introduction of hydroxyl radical groups. This biological stain technique may be widely used in dyeing of hair with black color.
研究领域:
生物学
·
生物化学
✓ 已验证
DOI
高影响因子
Journal of Cosmetic Dermatology
·
2019
·Vol. 18
·期 5
·1564-1574
·
IF 1.311
Ying Tang,Wendan He,Yanping Wu,Rui Cai
Summary Background The interest toward dyeing hairs with plant colorants has grown in popularity considering its low-toxic nature. However, researches reporting plant hair dyes are limited and the potential adverse effects of irritation are unclear. Objectives This study is aimed to provide an avenue by which to more accurately assess the dyeing efficiency and irritation potentials of plant hair dyes. Methods Four extracted plant colorants were incorporated in hydrogel hair dyes that were directly applied on unbleached gray human hairs. Their dyeing performances and the effect of an iron (Ⅱ) mordant were photometrically measured in CIELab coordinates and color strength. The eye and skin irritancy was assessed by combining various in vitro methods, including bovine corneal opacity and permeability (BCOP) assay in combination with histopathological analysis, Hen’s egg test on chick chorioallantoic membrane (HET-CAM) and a test on reconstructed human epidermis models. Results The investigated hair dyes exhibited desirable dyeing efficiency on human hairs. Post-treatment with the iron (Ⅱ) mordant caused a significant increase in color strength with subtle changes to the hue of dyed color. In the irritation testing, the four hair dyes were categorized as slight-to-mild eye irritants but possessed no skin irritation potential, while the mordant was determined as a non-irritant. Conclusions The results demonstrate the efficacy of a multi-analytical approach for in vitro assessment of various plant colorants for hair dyeing. The investigated plant extracts are suitable for producing viable colors on human hairs and may serve as a low-irritating alternative to the synthetic hair dyes.
研究领域:
生物学
·
医学
·
化妆品科学
✓ 已验证
DOI
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 3
·1122
·
IF 4.6
Juan He,Xiaomin Xu,Hainan Sun,Tengfei Miao,Meisheng Li,Shouyong Zhou,Wei Zhou
The harmful effects on the human body from p-phenylenediamine (PPD) in hair dyes can cause allergies and even cancer. Therefore, it is particularly important to accurately control and detect the content of PPD in our daily products and environment. Here, a small amount of non-metallic elemental P doped in perovskite oxide of SrCoO3−δ(SC) forms a good catalytic material, SrCo0.95P0.05O3−δ(SCP), for PPD detection. The improved performance compared with that of the parent SC can be attributed to three contributing factors, including a larger amount of highly oxidative oxygen species O22−/O−, better electrical conductivity, and more active sites on the P5+-oxygen bonds of SCP. Moreover, the lattice oxygen mechanism (LOM) with highly active species of lattice O vacancies and adsorbed –OO for electrocatalytic oxidation of PPD by the SCP/GCE (glass carbon electrode) sensor is proposed in our work. More importantly, the SCP/GCE sensor exhibits good stability, a low limit of detection, and high reliability (error < 5.78%) towards PPD determination in real samples of hair dyes, suggesting the substantial research potential for practical applications.Keywords:lattice oxygen;phosphorus-doped SrCo0.95P0.05O3−δ;p-phenylenediamine (PPD);electrochemical sensors;hair dyes
研究领域:
材料科学
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环境科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ChemistrySelect
·
2022
·Vol. 7
·期 48
·e202203886
·
IF 2.307
Dongshuang Jia,Yuhe Shen,Xuelin Zhang,Yuefei Wang,Rongxin Su,Wei Qi
Graphical The doped GA and TA produce a more complex structure of MPN through the synergistic effect of chelating with metal ions to finally obtain more colorful MPN pigments. MPN pigments can be deposited on the hair surface through covalent and non-covalent interactions, producing a range of highly saturated and stable coloring effects. In this study, we developed a complex polyphenol-metal ion system, in which two polyphenols represented by gallic acid (GA) and tannic acid (TA) chelated with metal ions leading to the formation of pigments composed of metal-phenol networks (MPN). The doping of GA and TA creates a mutual synergistic effect, which makes it chelate with metal ions to produce a more complex structure of MPN, and finally obtain more colorful MPN pigments. The MPN pigments can be easily deposited on the hair surface through covalent and non-covalent interactions, resulting in a series of hair dyeing effects with high color saturation and excellent stability. With many advantages such as low raw material cost, short hair dyeing time, simple process, good biocompatibility, less fading, and antioxidant, this composite polyphenol-metal ion material offers the possibility to replace the classical irritant hair dyes commonly used in existing cosmetics.
研究领域:
材料科学
·
生物学
·
化妆品科学
✓ 已验证
DOI
高影响因子
FIBERS AND POLYMERS
·
2025
·
IF 2.3
Fang Chengge,Ma Ling,Chen Timson,Chen Ya,Li Zhizhen,Yan Xiaodong,Wang Jing
Metal-phenolic networks (MPNs) have been considered an alternative to the commercial hair dyes. However, it is still challenging to dye white hair black without damaging the hair because the deposition of MPNs is restricted on the surface of the healthy hair. Herein, we develop a novel damage-free strategy that not only promotes surface deposition of MPNs, but also favors internal formation of MPNs. Firstly, basic amino acids that can help open the hair cuticle penetrate into the hair. Then the numerous amino and carboxyl groups of the amino acids serve as coordination sites for Fe 2+ absorption, which facilitates the interfacial and internal growth of MPNs, thereby deepening the color of the dyed hair. As the intake of amino acids increases in the hair, the amount of Fe that enters into the hair increases to enhance the coloration. The dyed hair is capable of withstanding repeated washing with shampoo for at least 15 times without fading. Moreover, the surface MPNs bring about good resistance to UV damage, light fastness, and antioxidant properties, while the amino acids to some extent can repair the potential damage to hair.
研究领域:
材料科学
·
化学
·
化妆品科学
·
生物化学
✓ 已验证
DOI
高影响因子
Analytical Methods
·
2024
·
IF 2.7
Jing Sun,Gao-Xu Xue,Xu Gong,Zai-Ping Zhang,Jie Xu,Lei Chen,Ling Cao,You-Long Feng,Yun-Jing Zhang
Chemical hair dye components can have allergenic, reproductive, and carcinogenic risks. Detecting restricted and prohibited ingredients in these products is challenging due to product diversity, isomer separation, instability, and wide polarity range. A method was developed using HPLC-high-resolution mass spectrometry for the qualitative and quantitative analysis of 54 hair dye components in various products. Samples were extracted with a 70% methanol solution, ultrasonicated in an ice bath, centrifuged, filtered, diluted with 25% methanol solution and 25% methanol solution containing 0.05% D-isoascorbic acid. Separation was achieved using an ACE Excel 3 C18 column (2.1 mm × 150 mm, 3 μm) with analysis conducted via quadrupole Orbitrap mass spectrometry. It showed good linear correlations, with detection limits of 0.1–23.5 ng mL−1, and quantitation limits of 0.2–78.1 ng mL−1. Average recovery ranged from 60.0% to 118.4%, with repeatability from 4.0% to 14.9%. Stability was confirmed within 48 hours. When applied to 20 batches of commercially available hair dyes, 24 hair dye components were found within permissible levels. The method is crucial for quality control of hair dyes, covering 10 common prohibited and 44 permissible hair dye components outlined in the Safety and Technical Standards for Cosmetics (2015 Edition). Compared to the standard methods, it can separate isomers in a single mobile phase system within 15 minutes in positive ion mode while maintaining sensitivity for phenol, hydroquinone, and other components in negative ion mode. Moreover, the pre-treatment strategy significantly improved stability and accuracy, enabling precise analysis of the 54 hair dye components.
研究领域:
分析化学
·
药物分析
·
毒理学
·
化妆品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DYES AND PIGMENTS
·
2023
·
IF 4.5
Yuhe Shen,Dongshuang Jia,Yuefei Wang,Tao Yu,Xiaojian Xu,Heng Chang,Qing Li,Rongxin Su,Wei Qi
Most natural biomolecules have two enantiomeric forms and can exist in either of them. Despite the L -type homochirality of natural biopolymers composed of amino acids, a great deal of effort has been devoted to the systems in which chirality dictates molecular self-assembly and corresponding properties. Previously, we demonstrated that chemical pre-modification of tyrosine ( L -Tyr) inspired by natural eumelanin can obtain colorful pigments and surface coatings , but their characteristics like stability still have development space. Here, the racemic reaction systems of tyrosine derivatives ( L/D -Tyr, Boc- L/D -Tyr and Cbz- L/D -Tyr) were designed, and we proved that substrate molecular chirality can affect the reaction rate of the oxidation process , change the intermolecular force and arrangement during assembly, thus influencing the morphology, structures, and properties of the biomimetic pigment materials. At the same time, we found that L + D -tyrosine derivatives can be oxidized and deposited on hair surfaces to obtain the color effect of black and red-brown series, and achieve green-safe biological hair dyeing. Compared with previous studies, it has faster coloring speed, higher color saturation, stronger color fixation stability, good mechanical strength and biocompatibility, providing a new idea for the manufacture of chiral-inspired advanced materials with bio-nanotechnology applications.
研究领域:
生物化学
·
材料科学
·
纳米技术
·
化妆品化学
✓ 已验证
产品关联
DOI
高影响因子
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
·
2023
·
IF 6.8
Yunyang Li,Na Zheng,Siyu Sun,Sujing Wang,Xiaoqian Li,Jiamin Pan,Muyang Li,Le Lang,Zelin Yue,Binbin Zhou
Parabens (PBs), a class of endocrine-disrupting chemicals (EDCs), are extensively used as additives in personal care products (PCPs); however, distinguishing between endogenous and exogenous contamination from PCPs in hair remains a challenge. We conducted a comprehensive analysis of the levels, distribution patterns, impact factors, and sources of PBs in 119 human hair samples collected from Changchun, northeast China. The detection rates of methylparaben (MeP), propylparaben (PrP), and ethylparaben (EtP) in hair samples were found to be 100%. The concentration of PBs in hair followed the order of MeP (57.48 ng/g) > PrP (46.40 ng/g) > EtP (6.80 ng/g). The concentration of PrP in female hair was significantly higher (65.38 ng/g) than that observed in male hair (7.82 ng/g) ( p < 0.05). The levels of excretion rates of MeP ( ER MeP ) and excretion rates of PrP (ER PrP ) in the hair-dying samples (ER MeP : 17.89 ng/day; ER PrP : 14.15 ng/day) were found to be 2.52 and 2.40 times higher, respectively, compared to the non-hair-dying samples (ER MeP : 7.09 ng/day; ER PrP : 6.05 ng/day). However, the system exposure dosage (SED) results revealed that although hair dyes exhibited higher PBs, human exposure was found to be lower than certain PCPs. The results of the correlation analysis revealed that toner, face cream, body lotion, and hair conditioner were identified as the primary sources of PBs in male hair. Furthermore, the human exposure resulting from the utilization of female hair dye and serum exhibited a positive correlation with hair ER MeP and ER PrP levels, indicating in the screening of samples, excluding hair samples using hair dye and haircare essential oil can effectively avoid the interference caused by exogenous contamination from PCPs.
研究领域:
环境科学
·
公共卫生
·
毒理学
·
化学分析
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）