CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Lan Ding,Ling Sun,Ziwei Wang,Di Li,Qiuyan Zhang,Xiaohui Liu,Yuanlin Ren,Yuesheng Li
Multifunctional cellulose fabrics with flame retardancy, electrical conductivity and UV resistance are expected to be used in the next generation of wearable flexible sensors, so there is an urgent need to develop novel coating systems that improve the natural properties of cellulose fabrics and give it more functionality. Here, a 2D-3D hetero-structured multifunctional coating consisting of titanium carbide (Ti 3 C 2 Tx MXene), zeolitic imidazolate framework-8 (ZIF-8) and phosphonitrilic chloride trimer (PPZ) was constructed on cotton/lyocell blended fabrics (C/L) by a one-pot impregnation method. Briefly, C/L first interacted with MXene via hydrogen bonding, and then the ZIF-8 encapsulation system grew in situ on MXene. The optimal sample obtained, named as MXene@ZIF-8@PPZ-C/L, combines flame retardancy, human motion detection and UV resistance. Compared to the untreated C/L, MXene@ZIF-8@PPZ-C/L exhibited a limiting oxygen index value of up to 30.8%, with peak heat release rate and total heat release values reduced by 65.7% and 15.8%, respectively. Meanwhile, MXene@ZIF-8@PPZ-C/L with an electrical conductivity of 24.4 s/m was able to sense human movement stably and continuously. Moreover, MXene@ZIF-8@PPZ-C/L also showed a high ultraviolet protection factor. In short, this work provided a simple method for fabricating new-generation multifunctional flexible wearable smart fabrics.
研究领域:
材料科学
·
纺织工程
·
智能可穿戴设备
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Zhicheng Bai,Teng Huang,Jiahao Shen,Dan Xie,JinJia Xu,Junhui Zhu,Fengqing Chen,Wenbiao Zhang,Jinfeng Dai,Pingan Song
Polylactic acid (PLA) is inherent brittle, flammable, and susceptible to ultraviolet light irradiation, limiting its application in the field of engineering safety. Therefore, advanced PLA composites with toughness and flame retardancy as well as other exceptional engineering performance has garnered significant interest. In this work, a versatile additive (PAHP) was synthesized by nucleophilic substitution utilizing flexible chain (polyphosphazene) as the skeleton and rigid biomass compound (guanine) as a substituent, then fabricating all-in-one PLA composites. The PAHP plays a synergistic flame-retardant role in both the gaseous and condensed phases, improving the flame retardant performance of the composites while effectively enhancing the crystallization and mechanical properties of PLA. Only 5 wt% PAHP within PLA composite can meet the fire-safety requirements of engineering applications (V-0 rating of UL-94) and exhibits a ∼12-folds enhancement in toughness compared to neat PLA. Moreover, the PLA/5% PAHP composite shows excellent ultraviolet shielding effects, blocking approaching 100 % UV isolation under UV-B wavelengths. This work offers a scalable strategy for preparing multifunctional flame-retardant additives, opening up a great promise for the application of high-performance PLA engineering composites in packaging, electronic, and automotive.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Frontiers in Pharmacology
·
2024
·
IF 4.4
Xu Xiaodong,Ding Zhao,Pu Chunlin,Kong Changchang,Chen Shijunyin,Lu Weiling,Zhang Jianfa
Introduction: Overexposure to ultraviolet (UV) light is known to cause damage to the skin, leading to sunburn and photo-aging. Chemical sunscreen products may give rise to health risks including phototoxicity, photosensitivity, and photosensitivity. Natural polysaccharides have attracted considerable interests due to diverse biological activities.Methods: A novel polysaccharide isolated was purified and structurally characterized using chemical methods followed by HPLC, GLC-MS, as well as 1D and 2D NMR spectroscopy. The photoprotective effect of the EPS on UVB-induced damage was assessed in vitro using cultured keratinocytes and in vivo using C57BL/6 mouse models.Results: The average molecular weight of the EPS was 5.48 × 106 Da, composed of glucose, mannose and galactose residues at a ratio of 2:2:1. The repeating units of the EPS were →3)-β-D-Glcp (1→3) [β-D-Galp (1→2)-α-D-Glcp (1→2)]-α-D-Manp (1→3)-α-D-Manp (1→. In cultured keratinocytes, the EPS reduced cytotoxicity and excessive ROS production induced by UVB irradiation. The EPS also exhibits an inhibitory effect on oxidative stress, inflammation, and collagen degradation found in the photodamage in mice. 1H NMR-based metabolomics analysis for skin suggested that the EPS partly reversed the shifts of metabolic profiles of the skin in UVB-exposed mice.Conclusion: The EPS exhibits skin photoprotective effects through regulating oxidative stress both in vivo and in vitro. Our findings highlight that the EPS is a potential candidate in sunscreen formulations for an efficient solution to UVB radiation.
研究领域:
生物化学
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分子生物学
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皮肤科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Peng Deng,Fangdan Xu,Yuyang Zhou,Lili Wang
Polylactic acid (PLA) is a promising biodegradable polymer, however conventional disperse dyeing departs it from eco-friendly conception; the limited compatibility with bio-based dyes also leads to the low durability of colour and functionality. This study presents an effective strategy for fabricating durably golden yellow and UV protective PLA integrating quercetin (Qc) and formaldehyde-free crosslinker (Trimethylolpropane tris-2-methyl-1-aziridinepropionate, TTMAP). Results show that a notable increase in the K/S of PLA from 5.83 to 14.97 takes place when the TTMAP concentration escalates from 0 to 5 g/L under the help of methyl cinnamate (MC) and deep eutectic solvent(DES). Under optimal condition, the fabricated PLA displays a shining golden appearance and UV shielding property, with colour fading rate of 6% and well maintained UPF50+ rating after five cycles of washing. The mechanism study reveals that the enhanced adhesion between Qc and PLA by TTMAP is a combining effect of chemical crosslinking and physical encapsulation. In all, the method developed in this research not only pushes forward the development of next generation bio-based PLA product approaching to the targets of sustainable textile industry and global carbon neutralization, but is also transferable to the surface modification of PLA material in other fields such as medical care, functional composite, packaging.
研究领域:
材料科学
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纺织工程
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生物化学
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2021
·Vol. 45
·期 25
·11119-11129
·
IF 3.591
Zhenming Qi,Kuang Wang,Jiayi Chen,Dawei Gao,Yu Ren,Chunxia Wang
In this article, amino-functionalized TiO2 (TiO2/KH550) was obtained via a mild reaction between 3-aminopropyltriethoxysilane and TiO2 with the aid of concentrated ammonia solution. 4-((4,6-Dichloro-1,3,5-triazine-2-yl)amino) sodium benzenesulfonate (SAT) was synthesized and characterized using 1H NMR and Fourier transform infrared spectroscopy (FT-IR). Self-dispersive and reactive TiO2 (TiO2/KH550/SAT) was prepared via a nucleophile substitution reaction between TiO2/KH550 and SAT. Finally, cotton fabric samples loaded with different amounts of TiO2/KH550/SAT were achieved via an exhaust dyeing method. The chemical structures, dispersions, and thermal performances of TiO2, TiO2/KH550, and TiO2/KH550/SAT were investigated using FT-IR, zeta potential measurements, and thermogravimetric analysis (TG). The crystalline phase, morphology, chemical composition, and optical absorption properties of the cotton fabrics were studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS). Moreover, the anti-ultraviolet, self-cleaning, and washing fastness properties of the cotton fabrics were investigated. It was found that TiO2/KH550/SAT demonstrated excellent dispersion stability in aqueous solution, even after standing for a month. Cotton fabrics loaded with TiO2/KH550/SAT exhibited attractive anti-ultraviolet performance, highly efficient and durable self-cleaning activity, and appreciable washing fastness. A mechanism and possible reactions related to the preparation of the self-cleaning cotton fabrics loaded with TiO2/KH550/SAT were proposed.
研究领域:
材料科学
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纺织工程
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纳米技术
✓ 已验证
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
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IF 5.6
Zhengwen Li,Liheng Chen,Xueqing Qiu
Lignin, a natural macromolecule renowned for its exceptional UV-blocking capabilities, has gained attention as a promising material for encapsulating chemical sunscreens. However, the inherent heterogeneity and dark coloration of lignin have limited its application in the sunscreen industry. This study presents a novel approach to obtaining uniform and light-colored lignin through fractionation of alkali lignin using a green co-solvent system of dimethyl carbonate and ethanol. The processed lignin was then utilized to create regular-shaped microspheres via the emulsion solvent evaporation (ESE) method. By optimizing the preparation conditions, the chemical sunscreen avobenzone (AVO) was successfully encapsulated within these lignin microspheres, achieving an AVO loading capacity of up to 70 %. The resulting lignin microsphere-coated avobenzone (LM/AVO) microcapsules demonstrated broad-spectrum UV resistance and sustained photostability for up to 12 hours under continuous UV exposure. Additionally, the microcapsules exhibited robust antioxidant properties and negligible skin penetration, highlighting their excellent safety profile. These findings indicate the significant potential of lignin-based microcapsules for innovative and effective sunscreen formulations.
研究领域:
材料科学
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化妆品科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2024
·
IF 12.7
Yanlu Sun,Xilin Pei,Zhengqi Wang,Dequn Wu,Xueli Wang,Jianyong Yu,Ruchao Yuan,Faxue Li
In the pursuit of enhancing the fire safety of polyamide 6 (PA6), the addition of flame retardants generally leads to hydrogen bond dissociation, which results in detrimental effects on the mechanical properties of PA6 composites and impedes processing and application in the textile field. In this study, a macromolecular flame retardant, PPB, designed with hydrogen bond donor-acceptor spacing aligned with PA6, was synthesized to increase the number of hydrogen bonds. The addition of 10 wt% PPB to the PA6 matrix (PA6/PPB10) endowed the composite with the limiting oxygen index (LOI) increased to 31.6 % and V-0 rating in the vertical burning (UL-94) test. PA6/PPB10 also exhibited significant enhancement in tensile strength by 12.6 % compared to pure PA6 and demonstrated a superior ultraviolet protection factor (UPF) value of 573, greatly exceeding the value of 3 for PA6. The quenching effect, diluting effect in the gas phase, and hydrogen bond interactions between PPB and PA6 backbones imparted PA6/PPB composites with satisfactory flame retardancy and mechanical properties. As a representative example, PA6/PPB10 was melt-spun into filaments with a pleasing tenacity of 3.6 cN/dtex and self-extinguishing capability within 5 s after ignition, confirming the sustained comprehensive properties after spinning and drawing into filaments.
研究领域:
材料科学
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纺织工程
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高分子化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ESSENTIAL OIL RESEARCH
·
2013
·
IF 0.553
Xiao-Wei Huang,Yun-Chao Feng,Yi Huang,Hai-Ling Li
Litsea cubeba essential oil (LCEO) is widely used as a flavor enhancer in cosmetics and as a folk skin-care agent in southern China. The objective of this paper is to investigate whether LCEO has biological activities that might be useful in modern skin-protection formulations. The present study results revealed that citral (57.4%) was a major component, while LCEO exhibited a potent inhibitory effect on tyrosinase (IC50 values 100 μg/mL), good antioxidative activities (IC50: 17.75 mg/mL for ABTS+., 10.2 mg/mL for O2
−), and apparent protective effect against UV–TiO2–NO2
−-induced protein oxidation at 0.01 mg/mL and tyrosine nitration at 0.1 mg/mL. Additionally, the biological activities of LCEO were compared with that of its main constituents. The results demonstrated that any individual major component was not the unique contributor to the high activity of LCEO. Based on these results, we suggested that LCEO could serve as a new natural skin-whitening agent.
研究领域:
化妆品科学
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植物化学
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皮肤生物学
✓ 已验证
产品关联
DOI
高影响因子
Coatings
·
2020
·Vol. 10
·期 4
·349
·
IF 2.436
Zihui Liang,Zezhu Zhou,Binghai Dong,Shimin Wang
To obtain a superhydrophobic surface, SiO2nanoparticles are deposited on the surface of silk fabric (SF) by Plasma Enhanced Chemical Vapor Deposition (PECVD) to form a hierarchical roughness structure. In addition, a durable superhydrophobic SiO2@silk fabric was further prepared by hexamethyldisilazane (HMDS) modification. Compared with bare silk, the surfaces of the SiO2@silk fabric exhibit higher surface roughness and excellent superhydrophobic activity, with a contact angle (CA) of ~152°. The excellent UV resistance of SiO2@silk fabric was confirmed with high UV protection factor (UPF) values and a low UV transmittance. Moreover, both the laundering durability and chemical stability of the SiO2@silk fabric were improved. Overall, this method is recognized as a promising approach to produce high-end fabric development. It can also guide the design of multifunctional fiber materials in the future.Keywords:silk fabric;superhydrophobic coating;UV resistant;durability;HMDS
研究领域:
材料科学
·
纺织工程
✓ 已验证
产品关联
DOI
高影响因子
Algal Research-Biomass Biofuels and Bioproducts
·
2023
·
IF 5.1
Swagata Dutta,S.P. Jeevan Kumar,Rintu Banerjee
Astaxanthin , a pink/red pigmented keto carotenoid occurring in certain algae, is an anti-oxidant that protects the cell from damage by attenuating the reactive oxygen species due to which it has immense potential to protect the skin and other allied cells. Commercially available chemical UV-filters used in sunscreen creams and lotions are not only inadequate in protecting the skin against the harmful UV-rays but also cause skin damage like skin irritation , skin-aging, allergic reactions upon prolong exposure to these chemicals. Moreover, they cause environmental pollution and damage, mainly to aquatic life . So, natural compounds having similar or improved protective potential against UV irradiated skin are in dire need in the cosmetics industry. Recent studies substantiate that astaxanthin can be employed in sunscreens owing to its high antioxidant potential and significant use as an anti-aging, anti-inflammatory, and anti-cancer compound. Astaxanthin accumulation has been found in microalgae and its properties suggest that astaxanthin can provide total protection against all the UVR related skin problems starting from the acute effects of sunburn, pigmentation , erythema to chronic effects of inflammation, photoaging and skin cancer. In this paper, astaxanthin's importance, sources, chemical structure, pilot scale production and its potential applications in cosmetic industry have been discussed.
研究领域:
生物化学
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化妆品科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULAR RAPID COMMUNICATIONS
·
2024
·
IF 4.2
Xin Zhang,Shanpeng Qiao,Hong Zhang,Bo Wang,Xu Zeng,Bo Ren,Xiaodong Yang
The literature on polyvinyl alcohol (PVA) films is extensive, however, these methods often necessitate intricate synthesis processes or the addition of plasticizers to modify the strength and water solubility of the PVA material. A high-strength UV radiation-resistant composite film by chelating Fe 3+ with lignin and PVA, which exhibits excellent hydrolysis resistance is developed. This composite film is prepared simply by incorporating a small amount of dealkalized lignin (APPL) and ferric chloride (FeCl 3 ) into PVA through a straightforward composite process. During the scanning test, it is noted that the film exhibits a high density of uniformly dispersed particles, endowing it with efficient ultraviolet absorption capabilities. The infrared and anti-dissolution tests reveal that the coordination of Fe 3+ with lignin imparts an outstanding hydrolysis resistance to the film, obviating the need for any extender, curing agent, acid or base. The tensile fracture strength reaches an impressive 187.81Mpa in the tensile test. UV and indicator card tests unequivocally demonstrate that the film achieves a remarkable 100% anti-UV efficiency. This Fe 3+ chelated lignin/PVA composite film, with its facile preparation, environmental sustainability, high strength, and outstanding anti-ultraviolet efficiency, can be deployed across diverse applications requiring robust protection against ultraviolet radiation.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Shen Zhang,Songnan Hu,Yan Zhou,Minting Xie,Yuhe Liao,Fengxia Yue
Lignin contains benzene rings, carbonyl groups, and phenolic groups that serve as natural macromolecular UV absorber. However, lignin provides insufficient protection in the UVA region because it lacks a long conjugated structure. In this study, we propose a flavonoids-in-lignin coextraction strategy to improve lignin’s UVA protection performance. Flavonoids-containing lignin was isolated from Musa basjoo (Musa basjoo Siebold) and Moso bamboo (Phyllostachys edulis) leaves using l-cysteine (l-cys)-assisted extraction, and the contents of flavonoids in lignin could be further enhanced by employing non-dewaxed sources. Lignin’s UV-protective performance and antioxidant activity were improved as more flavonoids were reserved. Particularly, lignin isolated from non-dewaxed bamboo leaves (NBL) exhibited the best UV protection performance, achieving a sun protection factor (SPF) value of 40.99 with the addition of 5 wt % lignin into SPF 15 commercial sunscreen, representing a 143% enhancement, and a UVA protection factor (PFA) value of 12.17, reflecting a 109% increment. The sunscreens prepared from flavonoid-rich lignin maintained SPF values exceeding 30 and PFA values exceeding 9 (PA+++) even after 8 h of UV irradiation, indicating their long-term UV-protective properties. Furthermore, flavonoids-in-lignin coextraction demonstrated superior UV-protective performance compared to alkali lignin with adscititious flavonoid extracts. This study leverages the inherent advantages of natural plant cell wall components through a straightforward coextraction strategy, further unlocking the potential of lignin for sunscreen applications.
研究领域:
植物学
·
材料科学
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化妆品科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）