ACS Applied Nano Materials
·
2025
·
IF 5.5
Xiaodan Zheng,Chenyao Qian,Huan Wang,Jinyue Bi,Xueyong Qi,Song Shen,Jin Cao
With the increasing incidence of skin cancers each year, there is growing concern regarding ultraviolet (UV) radiation protection. However, titanium dioxide (TiO2), as a commonly used physical sunscreen agent, has certain photocatalytic activity, which can generate a large amount of reactive oxygen species (ROS), thus posing potential skin toxicity risks. Incorporating organic molecules with free radical scavenging ability to modify TiO2 can effectively improve the UV protection performance. In this study, the PC–PDA@TiO2 composite nanoparticles were successfully prepared by coupling the biomolecules phycocyanin (PC) and polydopamine (PDA) to the surface of TiO2 nanoparticles using a simple spontaneous oxidation polymerization method. Characterization methods including scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and thermogravimetric analyses demonstrated that the PC–PDA@TiO2 composite nanoparticles uniformly coated with a PC–PDA composite nanolayer have been successfully prepared. The UV–vis diffuse reflectance spectroscopy results and electron spin resonance (ESR) tests showed that the PC–PDA composite nanolayer significantly increased the UV absorption capacity of the composite nanoparticles and reduced the concentration of free radicals through the synergistic effect of PC and PDA. Furthermore, in vitro toxicity assessment and in vivo UV protection efficiency tests showed no significant cytotoxicity and high UV protection efficiency of the PC–PDA@TiO2 composite nanoparticles. These findings suggest that the biomacromolecule PC shows great promise as a safer material for sunscreen products to enhance their efficacy.
研究领域:
材料科学
·
生物学
·
医学
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DOI
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Jian Chen,Huili Liu,Jing Zhang,Mengmeng Hou,Haojie Cheng,Jiaman Wu,Shouren Zhang,Baocheng Yang
Excessive ultraviolet (UV) exposure from sunlight has brought serious threats to human health. Due to their excellent UV absorption and antioxidant properties, natural polyphenols have emerged as green UV filters to replace commercial sunscreens which have alarming biosafety and serious damage to marine environments. However, the commercial application of polyphenols is greatly limited by their narrow wavelength absorption, long-term instability, and deep skin penetration. Herein, broadband UV filters with good antioxidant ability and high security were developed by coordination assembly of gallic acid and Zn2+ with combination of polyvinylpyrrolidone (PVP) (Zn-GA-PVP NPs). Owing to the π–π stacking interaction, ligand-to-metal charge transfer, and the carambola-like morphology, the UV shielding range of Zn-GA-PVP NPs is broadened to entire UVA and UVB region through both absorption and reflection of UV rays. The antioxidant ability of Zn-GA-PVP NPs is protected by PVP, which guarantees that they will negatively generate but effectively scavenge reactive oxygen species upon UV exposure. The abundant phenolic hydroxyl groups and proper particle size allow Zn-GA-PVP NPs to have strong skin adhesion but not to penetrate into the deep skin. Meanwhile, Zn-GA-PVP NPs also show good water resistance and easy mechanical removal because of the amphipathy of PVP. Zn-GA-PVP NPs exhibit a high UV protection effect and good biosafety in a photodamage mouse model. This study provides a promising approach for modifying natural polyphenols to better suit their use in commercial sunscreens.
研究领域:
材料科学
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生物学
·
皮肤病学
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产品关联
DOI
高影响因子
ACTA ASTRONAUTICA
·
2025
·
IF 3.4
Chunlei Sun,Guihua Tang,Rui Yang,Mu Du,Cong Wang,Zhigang Liu
Constructing a lunar base is strategically vital for deep space exploration, resource development, and future interstellar migration. However, the absence of atmospheric protection exposes the lunar surface to extremely complex thermal management issues and intense ultraviolet (UV) radiation challenges. For the first time, this study presents a multifunctional composite silica aerogel to enhance UV shielding, thermal insulation, and plant photosynthesis for sustainability in lunar base. The doping scheme is based on the numerical simulation combining Mie scattering, discrete dipoles approximation (DDA) and Monte Carlo method. The optimized UV-opacifier TiO 2 has 0.005% volume fraction and 30 nm particle radius. ITO infrared opacifiers, with volume fraction of 0.05% and radius of 20 nm, reduce infrared radiative dissipation, thereby enhancing thermal insulation. Ag nanorods with volume fraction of 0.001%, length-to-diameter ratio of 3.5, and radius of 10 nm, can filter green light, promoting plant photosynthesis and sustainability. Synthesized with a one-step base-catalyzed sol-gel method, this composite aerogel demonstrates 18.4% improvement in UV resistance compared with traditional transparent aerogels, while maintaining visible light transmittance of 75.2%. The thermal conductivity is 0.0409 W/m·K at 400 K. Its exceptional thermal insulation properties achieve energy savings up to 87.1% under extreme temperature fluctuations on the lunar surface. This composite aerogel can provide crucial solution to the sustainable development of lunar bases.
研究领域:
材料科学
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天体生物学
·
可持续发展
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产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Longhai Yi,Sheng Dai,Ajiao Zhao,Hua Qiu,Kunlin Chen
Textiles often subjected to a variety of challenging environments during outdoor use. To improve the performance and lifespan of textiles, this study presents the development of a flexible fabric coating based on waterborne multi-branched sulfonated lignin-based amphiphilic polyurethane. The coating incorporates a specially designed perfluorinated alcohol chain extender, along with choline phosphate glycol and biomass material lignin as additional chain extenders integrated into the polyurethane side chains. The introduction of polyethylene glycol with varying molecular weights was conducted to explore how polymerization degree of the hydrophilic soft segment in polyurethane influences the coating's waterproof and moisture-permeable properties. The findings indicated that incorporating polyethylene glycol-1000 as the soft segment could effectively balance the hydrophobic and breathable moisture-permeable properties of the coating. The effect of sulfonated lignin content on the UV resistance of the coating was further investigated. At a sulfonated lignin content reached 6 wt%, the coated fabric demonstrated exceptional UV shielding capabilities. Moreover, due to the amphoteric ionic side chain and terminated sulfonated lignin of polyurethane, the fabric coating exhibited excellent antibacterial properties, with an inhibition rate exceeding 99.9 % against Staphylococcus aureus and Escherichia coli . This fabric coating is suitable for use in outdoor clothing, protective gear, outdoor tents, and other fields.
研究领域:
材料科学
·
纺织工程
·
高分子化学
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产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2024
·
IF 4.4
Haiyan Mao,Yiyang Zhang,Lixiang Zhao,Han Li,Huanling Wu,Ling Lin
Fabric coatings, offering a range of benefits to personal health and the environment and addressing other specific needs, present a promising application in various fields. However, ensuring their long-term reliability, durability, and recyclability remains crucial to meet the demands of practical applications and sustainable development. To address this problem, we have developed a self-healing polyurethane (BPU) that integrates phenylboronic acid groups into the polyurethane chains and cross-links them to form dynamic boroxine bonds. This unique structure endows the BPU with a healing efficiency of 94%, a recycling efficiency of 93%, and an adhesion strength to cotton fabric of 1.42 MPa due to the high mobility of polymer chains and dynamic boroxine bonds. Leveraging these exceptional properties, we successfully prepared a multifunctional coating fabric (BPU/APD) by incorporating an azobenzene–polyurethane polymeric dye (APD) with BPU as a binder. This BPU/APD-coated fabric shows reversible photoisomeric behavior, remarkable ultraviolet protection function (UPF = 85.8), and excellent durability against washing and adhesion. Notably, the coated fabric can fully heal tiny scratches at 60 °C under 3 MPa for 5 min. After undergoing four healing cycles, the fractured coating fabric retains over 85% of its initial strength following the first healing, indicating its multiple healing capabilities. Moreover, the BPU/APD coatings on the waste fabrics can be recycled and reused repeatedly, maintaining a similar color strength and adhesion strength. This research paves the way for the development of multifunctional coating fabrics through the creation of self-healing polyurethane coatings, proving its great potential in smart textiles.
研究领域:
材料科学
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纺织工程
·
环境科学
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产品关联
DOI
高影响因子
DYES AND PIGMENTS
·
2025
·
IF 4.2
Yongxuan Xiang,Wang Jiapeng,Yifeng Wang,Yurong Sun,Guoqiang Chen,Xueni Hou,Tieling Xing
Polyphenols are a group of natural organic compounds from nature that have been widely used in many fields. Silk, known for its excellent hand and bright luster, is composed of a substance similar to human hair - proteins in large quantities. This study utilized biomass polyphenols, including tea polyphenols (TP), gallic acid (GA), tannin acid (TA), and dopamine hydrochloride (DA), to dye silk fibers for application in wigs. We developed a dyeing method to achieve this goal, successfully producing silk in various colors, including yellow, brown, black, grey, and orange. Among these, samples dyed with polyphenols using Fe 2+ and Ti 4+ mordants, as well as those dyed with a combination of TP and zinc oxide, retained more than 80% of their color depth after 20 washes, demonstrating good wash fastness. Moreover, DA-Fe 2+ , GA-Fe 2+ , TP-Fe 2+ and DA dyed samples achieved a light fastness rating of 5, indicating excellent resistance to sunlight. Additionally, the characteristics and morphology of the silk before and after dyeing were analyzed using various spectroscopic and analytical techniques. Adsorption tests showed that most polyphenol dyes followed the Freundlich isotherm. However, TP self-polymerization and DA/GA with Fe 2+ mordant dyeing aligned with first-order kinetics, while others followed second-order kinetics. The dyed silk fibers exhibited good anti-UV performance and had no significant change in tensile strength. Furthermore, using DA-Fe 2+ to dye the back hair of mice did not result in adverse effects. This method is eco-friendly, mild, and cost-effective, making it highly promising for applications in the wig industry.
研究领域:
材料科学
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纺织科学
·
生态学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Qing Huang,Fei Jiang,Li Shuai,Chengke Zhao
Conventional lignin, a dehydrogenated polymer derived primarily from hydroxycinnamic alcohol monomers, exhibits relatively low antioxidant and ultraviolet (UV)-blocking activities due to its structural imperfection. Herein, we demonstrated that the dehydrogenated polymer of ferulic acid (an unconventional lignin precursor) (FAL) had excellent antioxidant and UV-blocking properties. Structural characterization showed that FAL contains abundant dihydrobenzofuran and butyrolactone structures, free phenolic hydroxyl groups, and cinnamic acid end groups. Such structural characteristics endow FAL with much higher antioxidant activity and broader and stronger UV absorptivity (especially UVA) than conventional lignins. Our investigation showed that FAL could significantly improve the UV-blocking property of commercial SPF30 and SPF50 and render a relatively light color. These versatile properties make the FAL a potential ingredient for application in sunscreen products. This work is enlightening not only for exploring better antioxidant and UV-blocking polymers from the dehydrogenated polymers of phenolic compounds but also for biosynthesizing more advantageous lignin in plants.
研究领域:
材料科学
·
生物学
·
化学工程
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产品关联
DOI
PubMed
高影响因子
MATERIALS & DESIGN
·
2024
·
IF 7.6
Annan He,Tonghe Xing,Zhicheng Shi,Yu Zhang,Yuxin Luo,Mengqi Wang,Zhiyu Huang,Sijie Qiao,Aixin Tong,Shichang Chen,Fengxiang Chen,Weilin Xu
Aramid fibers (AFs) are widely applied as structural material, cordage, and versatile protection in many harsh environments, including space and deep sea. However, intense ultraviolet (UV)/ irradiation, high/low temperatures, and/or chemical solvent with strong acid/alkali/corrosion feature seriously affect their mechanical properties, thus severely shorten the life cycle of AF-based products. Inspiration by the principle of multiple refractions and partly reflections, an innovative strategy by depositing of laminated Al 2 O 3 /TiO 2 composite onto the surface of poly(m-phenylene isophthalamide) (PMIA) via atomic layer deposition (ALD) technique was presented. The tenacity of ALD-coated PMIA only decreases by ∼ 8 %, and the yellowness index (YI) only increasing to 129.24 %, far lower than 321.63 % of pristine PMIA fabric under the combination of intense UV irradiation (4260 W/m 2 ) and high temperature (200 °C + ) for 6 h, which equals to continuous strong sunlight exposure for approximately 7.5 years. Meanwhile, ultraviolet protection factor (UPF) value increased to 126.4, which is double that of the pristine PMIA fabric, exhibiting an impressive UV-resistance property. Furthermore, the ALD-coated PMIAs also shows a significant enhancement in both chemical and thermal stabilities. In all, this work not only forge a new route for the functionalization of fibrous materials, but also exhibits great promise for next generation advanced composite material and cutting-edge equipment in harsh environment.
研究领域:
材料科学
·
化学工程
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产品关联
DOI
高影响因子
INTEGRATED FERROELECTRICS
·
2022
·
IF 0.836
Jiayi Chen,Hui Li,Xin Bai,Chunxia Wang,Shuiping Liu,Xiaolei Song
A novel BiVO4 functionalized cotton fabric was prepared by in situ technology at room temperature. The X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM) of BiVO4 were applied to analyze its crystalline structure, morphology, chemical component. The photocatalytic activity of BiVO4 was investigated by degradation of methylene blue (MB) solution. BiVO4 functionalized cotton fabric was characterized by XRD, SEM, EDS, and ultraviolet-visible diffuse reflection spectroscopy (UV-vis DRS). Results showed that the prepared BiVO4 had significant photocatalytic activity. BiVO4 functionalized cotton fabric had a UPF value of 43.66, demonstrating excellent ultraviolet protection property. In addition, BiVO4 functionalized cotton fabric possessed commendable self-cleaning performance.
研究领域:
材料科学
·
纺织工程
·
环境科学
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2020
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IF 7.632
Yi Zhang,Wenbo Zhang,Henghui Deng,Weihao Zhang,Jian Kang,Chaoqun Zhang
Tailoring the performance of waterborne polyurethanes through composition control and structural optimization to meet the highly diversified modern demands is still one of the primary challenges faced by the polyurethane industry. Herein, various natural phenolic acids as neutralizers, for the first time, were applied for the preparation of castor oil-based cationic waterborne polyurethanes (CWPUs). The effects of these neutralizers on the microstructure (phase separation and hydrogen bond) and performance (mechanical properties, antibacterial activities, etc.) of the CWPUs were systematically investigated and compared with those of other commonly used neutralizers. The results indicate that apart from serving as neutralizers, phenolic acids also acted as antiplasticizing agents for the CWPU films by increasing the rigidity of the hard segment and hydrogen bond number. Also, the hydrophobic, rigid, conjugated structure of phenolic acids endowed the resulting CWPU films with excellent water resistance and UV protection. The introduction of phenolic acids also endowed the resulting polyurethane films with good antibacterial performance against both Gram-positive and Gram-negative bacteria. This study provides a novel and facile approach to tailor the performance of environmentally friendly cationic waterborne polyurethanes through natural phenolic acid neutralizers, along with eliminating long-standing issues of WPUs, such as irritating odor and air pollution.
研究领域:
材料科学
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环境科学
·
生物医学
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产品关联
DOI
高影响因子
RSC Advances
·
2018
·Vol. 8
·期 22
·12315-12321
·
IF 2.936
Lixian Xu,Di Wu,Bingrong Zhou,Yang Xu,Wenjuan Wang,Dinghua Yu,Dan Luo
Sunscreen is believed to protect human skin from photo damage due to UV exposure. However, substantial concerns remain associated with skin contact with UV filters and the subsequent reactive oxygen species from photoactivation of UV filters. Herein, we show that the microencapsulation of octyl p-methoxycinnamate (OMC), a typical UV filter, into the nanoporous structure of zeolitic imidazole frameworks (ZIF-8) prevents the skin exposure to UV filters while improving UV protection performance. Meanwhile, the UV filter photostability has been obviously improved due to the nanoconfinement effect. Microencapsulated OMC in ZIF-8 adhered to the stratum corneum could not only reduce OMC transdermal penetration, but also prevent skin exposure to the deleterious reactive oxygen species (ROS) from photoactivation of OMC. Therefore, this microencapsulated UV filter system based on a metal organic frameworks microporous polymer would find important applications in skin care products through providing safe and effective UV protection.
研究领域:
材料科学
·
皮肤病学
·
纳米技术
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产品关联
DOI
PubMed
高影响因子
Journal of Composites Science
·
2023
·Vol. 7
·期 2
·51
·
IF 3.3
Zhanqi Li,Ling Zhu,Xiaowen Xie,Meng Zhou,Changqing Fu,Shuai Chen
Despite the fact that PEDOT:PSS has been successfully used in the field of flexible electronics, some of its applications in the domain of rigid conductive coating have been limited by the pricey cost and subpar mechanical properties (hardness, adhesion, and moisture absorption) of the commercially available Clevios™ PH 1000, as well as the poor conductivity, film formation, and mechanical properties of the self-made PEDOT:PSS. In the process of investigating the low-cost preparation of PEDOT-based conductive polymer coatings, we discovered that self-made PEDOT:PSS, a waterborne epoxy resin, and a bio-based epoxy curing agent can be blended uniformly to produce good film-forming conductive coatings. Later, the addition of KH560-modified nano-SiO2further improved the coating’s hardness while ensuring a modest increase in conductivity. Meanwhile, the inadequacies of the epoxy resin, which are not UV-resistant, were considerably improved by the synergistic action of PEDOT:PSS and the modified SiO2. The result is a low-cost method designed for creating conductive coatings that are UV-resistant and may be utilized for electromagnetic, electrothermal, and antistatic shielding applications. Such a PEDOT:PSS/epoxy composite system and its design approach will broaden the scope of PEDOT:PSS’s application and will inspire future research in and practical implementations of PEDOT:PSS-based conducting coatings.Keywords:waterborne epoxy resin;PEDOT:PSS;high hardness;conductive coatings;bio-based;UV-resistant
研究领域:
材料科学
·
化学工程
✓ 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）