ACS Applied Polymer Materials
·
2024
·
IF 4.4
Tong Xue,Dunjie Fang,Leilei Si,Yunjie Yin
Textiles with antibacterial and antiultraviolet properties have gained significant attention because of their ability to protect the human body. This study presents the design and synthesis of a Schiff base for chitosan modified with salicylaldehyde and titanium dioxide (SCSB-Si-TiO2). SCSB-Si-TiO2 was coated onto cotton fabrics by using a layer-by-layer self-assembly method, resulting in functional cotton fabrics (SCSB-Si-TiO2/cotton) with excellent antibacterial and antiultraviolet properties. This functional textile demonstrated excellent antibacterial effects with inhibition rates of 95.22% against Escherichia coli and 98.99% against Staphylococcus aureus. Moreover, SCSB-Si-TiO2/cotton exhibited outstanding antiultraviolet characteristics, with a ultraviolet protection factor (UPF) value of 110.9, and maintained a UPF value above 82 even after 25 washing cycles. Additionally, SCSB-Si-TiO2/cotton exhibited good hydrophobicity with a water contact angle of 123.6°. The breathability of SCSB-Si-TiO2/cotton decreased slightly, and its tensile strength increased, which was sufficient to meet daily life requirements. This study presents an approach to the development of multifunctional textiles.
研究领域:
材料科学
·
纺织工程
·
生物学
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2016
·
IF 4.219
Feifei Sun,Hong Niu,Dongdong Wang,Yuanyuan Wu,Haibo Mu,Lili Ma,Jinyou Duan
Current studies have revealed the excellent moisture absorption-retention capacity of hyaluronan (HA); however, HA is easily degraded by hyaluronidase on the surface of skin. So, it is very necessary to develop an alternative derivative with low cytotoxicity and resistance to hyaluronidase. Herein, a HA decorated with photocaged groups was synthesized. The moisture absorption-retention capacity and hyaluronidase resistance of photocaged HA (HA-DMNB) and products of HA-DMNB irradiated by ultraviolet for different time (IHA-DMNB), were investigated. Results show that HA-DMNB is more resistant to hyaluronidase than HA, and HA-DMNB could release free carboxyl groups of HA upon ultraviolet to bond with H 2 O. More importantly, HA-DMNB was protective against UV light. In addition, HA-DMNB and IHA-DMNB were observed to be nontoxic to HaCat cells. This study indicates that HA-DMNB may be effectively used as a moisture-preserving reagent.
研究领域:
生物化学
·
皮肤科学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Guolin Zheng,Zhe Jiang,Yifan Cui,Man Zhou,Yuanyuan Yu,Ping Wang,Qiang Wang
Multifunctional textiles have attracted widespread attention with the improvement of awareness of health. Especially, the fluorine-free superhydrophobic and conductive cellulose fiber-based fabrics have received intensive interest due to their broad and high-value applications. Herein, the copper sulfide nanoflowers were in-situ deposited on cotton fabric followed by polydimethylsiloxane (PDMS) treatment for encapsulating CuS nanoflowers and obtaining superhydrophobicity, recorded as Cot@PTA@CuS@PDMS. Cot@PTA@CuS@PDMS possesses superhydrophobicity with contact angles of 153.0 ± 0.4°, photothermal effect, excellent UV resistance, good conductivity, and anti-fouling. Interestingly, the resistance of Cot@PTA@CuS@PDMS is significantly reduced from 856.4 to 393.1 Ω under simulated sunlight irradiation with 250 mW/cm 2 . Notably, the resistance can be slightly recovered after shutting off simulated sunlight. Besides, Cot@PTA@CuS@PDMS has efficient oil-water separation efficiency for corn germ oil and castor oil, respectively. Briefly, this work provides a novel, facile, and promising strategy to fabricate multifunctional fiber-based textiles with the reversible change of resistance under simulated sunlight irradiation, inspiring more scholars to control the resistance change of textiles by light irradiation.
研究领域:
材料科学
·
纺织工程
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NPG Asia Materials
·
2021
·Vol. 13
·期 1
·1-11
·
IF 10.481
Zhu Hai,Huang Yu,Zhang Shouwei,Jin Shiwei,Lou Xiaoding,Xia Fan
Roof leakage is a common phenomenon on rainy days and makes residents uncomfortable. Superhydrophobic materials are promising candidates to protect grass houses from rainwater. However, mechanical weakness, chemical corrosion, and UV light sensitivity are the three main challenges restricting these nonwetting materials from wider application in real life. Herein, we developed an inorganic–organic superhydrophobic paint (IOS-PA) for preparing a waterproof grass house. IOS-PA not only showed mechanical robustness and chemical anticorrosion but also displayed self-healing properties, anti-icing properties, and high and low temperature (150 °C and −196 °C) resistance. Photocatalysis was also achieved with IOS-PA, as demonstrated by organic matter (Nile red, methyl blue, and methyl orange) degradation. Moreover, extremely long-term UV resistance, i.e., resistance to UV irradiation (365 nm, 5.0 ± 0.6 mW/cm 2 ) for 100 h and ambient sunlight for 8640 h (1 year), caused the conflicting properties of superhydrophobicity and photocatalysis to coexist in IOS-PA, further accomplishing self-cleaning for the removal of both dirt particles and organic contamination. Specifically, a grass house coated with IOS-PA exhibited favorable waterproof properties, indicating the potential to ensure comfortable living conditions for people living in undeveloped areas, even on rainy days. With a variety of excellent characteristics, IOS-PA, we believe, is advantageous for scalable production and practical application in reality.
研究领域:
材料科学
·
化学工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2023
·Vol. 15
·期 18
·3666
·
IF 5
Tongtong Ma,Qianqian Zhou,Chaozheng Liu,Liping Li,Chuigen Guo,Changtong Mei
Multifunctional biofilms with early fire-warning capabilities are highly necessary for various indoor and outdoor applications, but a rational design of intelligent fire alarm films with strong weather resistance remains a major challenge. Herein, a multiscale hierarchical biofilm based on lignocellulose nanofibrils (LCNFs), carbon nanotubes (CNTs) and TiO2was developed through a vacuum-assisted alternate self-assembly and dipping method. Then, an early fire-warning system that changes from an insulating state to a conductive one was designed, relying on the rapid carbonization of LCNFs together with the unique electronic excitation characteristics of TiO2. Typically, the L-CNT-TiO2film exhibited an ultrasensitive fire-response signal of ~0.30 s and a long-term warning time of ~1238 s when a fire disaster was about to occur, demonstrating a reliable fire-alarm performance and promising flame-resistance ability. More importantly, the L-CNT-TiO2biofilm also possessed a water contact angle (WCA) of 166 ± 1° and an ultraviolet protection factor (UPF) as high as 2000, resulting in excellent superhydrophobicity, antifouling, self-cleaning as well as incredible anti-ultraviolet (UV) capabilities. This work offers an innovative strategy for developing advanced intelligent films for fire safety and prevention applications, which holds great promise for the field of building materials.Keywords:fire-warning;biofilms;fire resistance;superhydrophobicity;anti-ultraviolet
研究领域:
材料科学
·
生物工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Cleaner Production
·
2022
·
IF 11.072
Bianyang He,Yao Xiao,Yanfang Li,Mingjie Fu,Jianying Yu,Lei Zhu
Bitumen could emerge the degradation of performance under ultraviolet (UV) light easily, then the bituminous pavement would have to be repaired and even reconstructed for safety, causing environmental pollution and energy consumption. Therefore, it is crucial to raise bituminous anti-UV aging property so that the service life of bitumen could be increased memorably, which is beneficial to environmental protection and sustainable development. Lignin grafted layered double hydroxides (LG-g-LDHs) were prepared successfully through covalent bonding with diphenyl-methane-diisocyanate (MDI), and were characterized by Fourier transform infrared (FTIR) spectrometer, scanning electron microscopy (SEM) contact angle tester and ultraviolet and visible (UV–vis) spectroscopy. Then LG-g-LDHs were used for modifying bitumen, the effects on anti-UV aging properties were researched by physical properties, four components analysis, FTIR and dynamic shear rheometer (DSR) test. The results showed that LG-g-LDHs were prepared and represented a stable cross-linked structure, then they had a combined effect of chemically absorbing and physically reflecting UV light owing to the multi-layered and benzene ring structure. Due to the introduction of lignin, the compatibility between LDHs and bitumen could be improved. After aging, the properties including physical properties and rheological behaviors of bitumen decreased and colloidal stability declined. Compared with LDH, LG-g-LDHs represented better inhibitory action in performance deterioration and colloidal stability of bitumen, which indicated that LG-g-LDHs could strengthen bituminous anti-UV aging properties for sustainable service of bitumen.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 40
·2209422
·
IF 19
Wenqin Gao,Zhaolei Wang,Guoying Tan,Wei Liu,Marshet Getaye Sendeku,Ying Tang,Yun Kuang,Xiaoming Sun
TiO 2 is a typical anti-ultraviolet agent in sunscreen cream, but it suffers from a lack of anti-oxidant activity for scavenging reactive oxygen species. Other traditional sunscreen ingredients, such as C 60 and ferulic acid, have moderate antioxidant and UV protection capabilities, and the products do not provide further UV protection. Herein, titanium hydride (TiH 1.97 ) particles with dual functions of anti-oxidant and anti-ultraviolet are presented as an active material to remove the highly oxidizing and harmful hydroxide free radicals from the skin surface. Owing to the active hydrogen in TiH 2 , it shows great potential to eliminate hydroxyl radicals, and the rate is roughly proportional to the exposed surface area (50% /20 min). Together with the biocompatibility of the in situ formed TiO 2 , which has a strong ability to absorb ultraviolet light during OH radical scavenging. At the same time, adding titanium hydride to sunscreen also enhances sun protection. The SPF value of sunscreen containing 1% titanium hydride and 20% titanium dioxide can reach 31.8, which exceeds the 20% titanium dioxide (15) by more than twofold. Therefore, titanium hydride with anti-ultraviolet and antioxidant functions can be regarded as a promising and safe ingredient for sunscreen cream.
研究领域:
材料科学
·
生物学
·
皮肤科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2011
·Vol. 122
·期 3
·2090-2098
·
IF 1.24
Chenghui Zheng,Guoqiang Chen,Zhenming QI
Nano titanium dioxide (TiO 2 ) sols were prepared by sol-gel method with tetrabutyl orthotitanate (TBOT) as precursors, citric acid (CA) as inhibitors. Ultraviolet resistant capacity of finished cotton fabrics are greatly improved with good wrinkle-resistance, whiteness and tensile strength as well. The optimum molar ratio for preparing nano-TiO 2 sols in this study is n[C 2 H 5 OH] : n[H 2 O] : n[CA] : n[HCl] : n[TOBT] = 20 : 6 : 1.2 : 0.025 : 1, at ambient temperature. Particle size distribution analysis of the sol reveals that the curve is right tailed with an average diameter of 72.8 nm. Factors affecting the performance of finished cotton fabrics by TiO 2 sols, such as concentration of sodium hypophosphite (SHP), triethanolamine (TEA) in finishing bath, curing temperatures and time lengths were investigated by orthogonal experiments. The optimum finishing results can be obtained with 3% SHP, 3% TEA, curing at 165°C for 3 min. Aggregated nano-TiO 2 particles on surfaces of finished cotton fibers both washed and unwashed were investigated by high resolution cold field emission scanning electron microscope and energy dispersive X-ray spectrometer. Esterification crosslinking between CA and cotton fibers were also demonstrated through infrared spectra. After a five-time's wash, ultraviolet protection factor of finished cotton fabrics with nano-TiO 2 sols is up to 117.42 and dry crease recovery angles increase by 30.2° with slightly improved whiteness, while the breaking strength decreases by 18.8%. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
研究领域:
纺织科学
·
材料科学
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2020
·
IF 3.99
Liyao Huo,Junchen Luo,Xuewu Huang,Shu Zhang,Shijie Gao,Biao Long,Jiefeng Gao
Superhydrophobic nanofibrous membranes have attracted tremendous attention to deal with some environmental problems like oil leakage and wastewater treatment ; however, their poor durability, recyclability and stability limit their broad applications in the complex and harsh water treatment. Here, we prepared a superhydrophobic, anti-ultraviolet, durable and stretchable nanofiber composite membrane . TiO 2 nanoparticles were anchored onto the thermal plastic polyurethane (PU) nanofiber surface by ultrasonication, followed by polydimethylsiloxane (PDMS) modification. PDMS could decrease the nanoparticle surface energy and hence improve the hydrophobicity of the nanofibrous membrane. More importantly, it was served as a “glue”, significantly enhancing the interfacial adhesion between the TiO 2 nanoparticles and PU nanofibers and thus the mechanical properties . The obtained composite membrane displayed excellent corrosion resistance and UV blocking performance, which could be maintained after cyclic mechanical tests. The superhydrophobic/superoleophilic nanofiber composite could separate oil with not only water but also salt, acid and alkaline solution. In addition, the nanofiber membrane could be repeatedly used with the stable separation flux and efficiency, displaying great durability and recyclability.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2019
·
IF 6.97
Lili Zhang,Hailong Lu,Juan Yu,Eleanor McSporran,Avik Khan,Yimin Fan,Yiqin Yang,Zhiguo Wang,Yonghao Ni
The synthesis of functional lignocellulose-based gels from sustainable biomass has received considerable attention in material chemistry. In this study, robust, porous, and lignin-containing lignocellulose hydrogels were prepared based on the sol–gel process. The lignin-containing lignocellulose materials were dissolved (or dispersed) in N-methylmorpholine-N-oxide (NMMO) and cross-linked with a silane coupling agent 3-aminopropyltriethoxysilane (APTES), followed by coagulation and solvent exchange to form gel structures. The formation of Si–O–C cross-links among the lignocellulosic fibrils as a result of the addition of APTES was mainly responsible for the strength improvement. Furthermore, the presence of lignin also contributed to the enhancement of strength properties. The as-prepared lignocellulose gels were further characterized using rheological and compression tests. The dynamic storage modulus of APTES-reinforced lignocellulose gel (LCGA) can reach up to 1391 kPa and the compressive modulus up to 96 kPa, which shows a 3-fold increase in viscoelastic properties and a 2-fold increase in compressive strength compared with unmodified gel. In addition, the obtained LCGA gel exhibits unique properties, such as antiultraviolet weathering and dye removal via adsorption, and their potential applications were explored.
研究领域:
材料化学
·
可持续材料
·
生物质利用
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Guolin Zheng,Yifan Cui,Zhe Jiang,Man Zhou,Ping Wang,Yuanyuan Yu,Qiang Wang
Personal protective textiles have attracted extensive interest since Corona Virus Disease 2019 has broken out. Moreover, developing eco-friendly, multifunctional waterproof, and breathable surface is of great importance but still faces enormous challenges. Notably, good hydrophobicity and breathability are necessary for protective textiles, especially protective clothing and face masks for healthcare. Herein, the multifunctional composite coatings with good UV-resistant, anti-oxidative, hydrophobic, breathable, and photothermal performance has been rapidly created to meet protective requirements. First, the gallic acid and chitosan polymer was coated onto the cotton fabric surface. Subsequently, the modified silica sol was anchored on the coated cotton fabric surface. The successful fabrication of composite coatings was verified by RGB values obtained from the smartphone and K/S value. The present work is an advance for realizing textile hydrophobicity by utilizing fluorine-free materials, compared with the surface hydrophobicity fabricated with conventional fluorinated materials. The surface free energy has been reduced from 84.2 to27.6 mJ/m 2 so that the modified cotton fabric could repel the ethylene glycol, hydrochloric acid, and sodium hydroxide solutions, respectively. Besides, the composite coatings possesses lower adhesion to deionized water. After 70 cycles of the sandpaper abrasion, the fluorine-free hydrophobic coatings still exhibits good hydrophobicity with WCA of 124.6 ± 0.9°, with overcoming the intrinsic drawback of the poor abrasion resistance of hydrophobic surfaces. Briefly, the present work may provide a universal strategy for rapidly creating advanced protective coatings to meet personal healthcare, and a novel method for detecting RGB values of composite coatings by smartphone.
研究领域:
材料科学
·
纺织工程
·
医学防护
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Congcong Yang,Gege He,Bo Xu,Hongyu Mi,Fengjiao Guo,Yan Tang,Chunjiang Jin,Jieshan Qiu
While adjustable mechanical properties, diverse biochemical features, and good ionic conductivity enabled by molecular engineering, polymer hydrogels as ionic skins (i-skins) are still limited by multiple challenges in the practical human health monitoring and health diagnosis, such as undesirable ductility and contact adhesion, poor functionality, and insufficient sensing ability. In view of this, the strategy of multiple dynamic interactions was proposed, and a mussel characteristic double-network polymer composite hydrogel (PG-BT2) with tannic acid and borax as dynamic media was reasonably designed. Due to the dynamic reversible interactions from the crosslinked network combined with special functional groups, the obtained PG-BT2 hydrogel attains remarkable stretchability with >1200 % elongation and good toughness of 268.6 kJ/m −3 , and also possesses favorable versatility (e.g., self-healing time <2 s, adhesion strength of 4.62 kPa to pigskin, and UV transmittance of 15.3 % at 365 nm). Additionally, the i-skin derived from the PG-BT2 hydrogel exhibits excellent sensing properties, including a low interface contact resistance of 8.3 kΩ at 1 kHz, fast response/recovery time of 0.657 s/0.348 s, and a wide sensing range of 0–1100 % strain. By combining the hydrogel-based i-skin patch with the wireless circuit connected to a Bluetooth module, the constructed sensor system is capable of accurately monitoring micro-expressions and multi-joint movements. The portable system is also demonstrated to capture high-fidelity signals of electrocardiograms available for training artificial intelligence, achieving differentiation and recognition of blood pressure status, which will greatly benefit health management and intelligent medicine.
研究领域:
材料科学
·
生物医学工程
·
人工智能
✓ 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）