COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2023
·
IF 8.7
Mei Fang,Qi Li,Daozheng Yang,Bing Zhou,Yuezhan Feng,Chuntai Liu
Effective utilization of abundant solar energy can help alleviate the global energy shortage. In this work, a flexible sandwich structured transparent photothermal film was prepared by sequentially spray coating MXene conductive layer as core, and spin coating polydimethylsiloxane (PDMS)-Fe 3 O 4 protective layer as skin onto polycarbonate (PC) substrate. Due to the synergistic light-to-heat conversion effects of MXene and Fe 3 O 4 nanoparticles, as well as the thermal insulation effect of PDMS layer that prevent heat from diffusing into air, the obtained PC/MXene/PDMS-Fe 3 O 4 films (PMPF 0.5 ) exhibited a satisfying photothermal conversion performance (72.6 °C at 100 mW/cm 2 ) with high visible transmittance exceeding 54%. Moreover, the PDMS-Fe 3 O 4 coating endowed the film with high hydrophobicity (120°), expanding its application in humid environment. Combing with these excellent photothermal performance, transparency, flexibility and hydrophobicity, PMPF film exhibits a highly potential using in space thermal management, such as greenhouses.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2022
·
IF 6.206
Yubo Liu,Weiming Sun,Kai Feng,Yang Wu,Bo Yu,Shujuan Liu,Feng Zhou
In recent years, oil-contained deicing materials have aroused peoples' concern due to their weak ice adhesion feature. Yet the loss of lubricant on oil-contained surface caused by contact or volatilization should be considered. Oily sebum secreted by sebaceous glands lubricates and moisturizes our skin, and can be reproduced continuously even after daily cleaning. In this work, inspired by sebaceous glands, a self-lubricant (SL) coating with ultra-low ice adhesion and excellent deicing durability was designed via continuously secreting lubricants. To determine the suitable simulant of oily sebum, the tribological tests and theoretical simulation analysis of lubricant on ice were conducted, confirming the effect of polydimethylsiloxane (PDMS) lubricants. By well mixing lubricant and resin, and sebaceous glands-like structures formed in coating matrix after curing, which endowed coating with lubricant storage feature and sebum-like secretion structure. The affinity of PDMS molecules to ice and the regeneration of lubricant film ensured the deicing durability of coating. Ice adhesion strength can be kept below 100 kPa even after 100 icing-deicing cycles, and can recover low ice adhesion strength (~50 kPa) via lubricant secreting. This work highlights the importance of lubricant selection and gives a new vision to designing durable icephobic materials.
研究领域:
材料科学
·
表面工程
·
涂层技术
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL POLLUTION
·
2019
·
IF 5.714
Maiping Yang,Chi Jiang,Weiqu Liu,Liyan Liang,Ke Pi
Although the development of constructing oil-water separation materials is quick, the defects of using harmful regents, weak stability and single function still exist. Here, we report an effective and less-harmful system with poly-dimethylsiloxane (PDMS)/ZnO composite solution to fabricate robust superhydrophobic surfaces for oil-water separation and removal of organic pollutant. The obtained samples were characterized by a range of instruments. The water contact angle (WCA) of coated cotton was 155.6°, which attributed to the synergetic effect of low surface energy of PDMS and roughness of ZnO nanoparticles . The coated cotton was tolerant to mechanical damage, various corrosive solvents and temperature conditions. The emphasis of this study is the combination of superhydrophobicity and photocatalysis , resulting in multifunctional cotton with dual self-cleaning properties, outstanding oil-water separation ability and efficient water purification property. When utilized a simple laboratory facility, the cotton could separate water from oil-water mixture with a high efficiency (99.3%). Furthermore, the dyed water could be purified with coated cotton through photocatalysis under UV light and became colorless. Meanwhile, this mild and facile method could also be utilized to modify other porous substrates, such as PET, silk, non-woven and sponge. Therefore, the characteristics of environmental protection and easy operation make this cotton a desirable candidate for extensive applications in self-cleaning, oil-water separation and water purification.
研究领域:
材料科学
·
环境工程
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2023
·
IF 6.6
Yan Cheng,Shanchi Wang,Zhiguang Xu,Lianyi Jiang,Yan Zhao
Oil-repellency of fabric is essentially based on perfluoroalkyl substances (PFAS, or called perfluorochemicals (PFCs)). However, plans to phase out the use of these chemicals, even those short-chain ones (C4-C6), have been announced because they accumulate in the human body and are extremely persistent in the environment. It is urgent to develop non-fluorine surface chemistry for oil-repellent fabric finishing. Here, we report the non-fluorine oil repellency of brush-like polydimethylsiloxane (PDMS) coating (g-PDMS), and the comparison of its oil repellency with that of a common PFAS crosslink polysiloxane coating (C 4 -PFAS). A catalyst-free, solvent-free chemical vapor deposition (CVD) process was used to prepare the g-PDMS coating. For smooth glass, g-PDMS coating exhibits ultralow contact angle hysteresis (∆ θ ) for various oils (1.3–7.3°), while the ∆ θ of C 4 -PFAS coating is much higher (30.7–49.7°). For fabrics, g-PDMS and C 4 -PFAS achieved almost the same contact angles to castor oil (~134°). According to GB/T 19977-2014 standard, the oil repellency of coated fabrics was rated Grade 5 for both g-PDMS and C 4 -PFAS. Therefore, the non-fluorine oil repellency of g-PDMS is able to meet the basic requirement of oil-repellent fabric finishing, and it is expected that the oil repellency can be further improved by the rational design on surface topography .
研究领域:
材料科学
·
化学工程
·
纺织科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Yingying Wang,Taipeng Jiang,Shangmin Si,Jian Wu,Lan He,Weijie Wei,Lingling Zeng,Sheng Chen,Meng Li,Zhuwei Gao
Photothermal materials have attracted considerable attention for efficient solar energy conversion. A promising strategy involves leveraging the photothermal effect to reduce crude oil viscosity, thereby facilitating efficient oil–water separation. In this study, we reported the in-situ polymerization of covalent organic framework (COF) layers on cotton wool (CW). Subsequently, polydopamine (PDA) and polydimethylsiloxane (PDMS) were sequentially coated to obtain a novel sandwich-structured composite (PDMS@PDA@COF@CW). The composite exhibited excellent superhydrophobic properties with a water contact angle of 153.5°. Furthermore, it maintained an oil–water separation efficiency of 98.1 % even after 50 consecutive cycles. The material also demonstrated remarkable chemical stability under various harsh environmental conditions and possessed excellent flame retardancy. Critically, the synergistic interaction between the PDA coating and the COF framework significantly enhanced photothermal performance. Consequently, the surface temperature of PDMS@PDA@COF@CW rapidly reached 83.8 °C within 180 s under 1.0 kW/m 2 light irradiation. This study presents a highly promising solution for mitigating crude oil spills, offering valuable insights into the design of multifunctional materials for environmental remediation.
研究领域:
环境科学
·
材料科学
·
化学工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Bio Materials
·
2018
·
IF 0
Xiaojuan Wei,Jian Shen,Zheng Gu,Yazhi Zhu,Feng Chen,Mingqiang Zhong,Li Yin,Yao Xie,Zhenjie Liu,Wei Jin,Mehdi Nouri,Lingqian Chang
Polydimethylsiloxane (PDMS) is a common biomaterial with excellent properties. However, its inherent hydrophobicity impedes cell growth and differentiation. PDMS is an intrinsically inert material, which limits its applications to specific scenarios where responsive materials are needed. Dopamine can easily adhere to various substrate surfaces through noncovalent and covalent interactions. In this work, a bioinert PDMS surface was modified into a bioactive surface by biocompatible and pH-sensitive polydopamine (PDA). The binding of PDA and PDMS in different forms was verified by the typical scanning electron microscopy (SEM) and atomic force microscope (AFM). By PDA film modification, the contact angle of PDMS was significantly reduced. Hydrophobicity was achieved by PDA nanosphere (PDA NS) modification. PDA-modified PDMS was also found to be pH-sensitive, as validated by contact angle measurement, macroscopic friction test, and protein adsorption. Compared to an unmodified surface, the PDA significantly improved cell adhesion, proliferation and spreading. We came to a conclusion that the surface roughness of PDA-modified PDMS had little effect on cell growth and the cytocompatibility of the materials was mainly determined by the surface chemical properties. Our results further validated that PDA/PDMS is pH-sensitive and can effectively promote cell growth and proliferation.
研究领域:
生物材料
·
生物医学工程
·
表面化学
·
细胞生物学
✓ 已验证
产品关联
DOI
PubMed
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2022
·
IF 10.319
Huali Li,Liuqin Zhang,Xiaohu Zhang,Shuwen Luo,Baoshan Yang,Min Wu,Wei-Hua Li,Fa-Qian Liu
The antifouling of marine facilities placed below the waterline is a key constraint to the development of the marine economy. Currently, commercial Cu 2 O-based antifouling coatings still have defects such as agglomeration, oxidation, short duration and high dosage. For this reason, we developed for the first time a triple antifouling system consisting of Cu 2 O@poly(NIPAM-co-DAm) (Cu 2 O@PND) dynamic redox microgels triggered by copper ions and polydimethylsiloxane (PDMS). The catechol groups of PND nanogels can chelate Cu 2+ and reduce it in situ to obtain Cu 2 O@PND microgels, which guarantees the stable release of Cu + . Furthermore, Cu 2 O remains stable and free from oxidation because of the electron transfer between PND and Cu 2+ . Finally, superior antifouling performance was achieved by combining the stable Cu + released from Cu 2 O, in situ conversion of PND to hydrogel, and its oxidation to produce active substances and H 2 O 2 , and PDMS coating with low surface energy.
研究领域:
材料科学
·
化学
·
海洋工程
·
生物技术
✓ 已验证
产品关联
DOI
高影响因子
FUEL
·
2023
·
IF 7.4
Hao Zhou,Lingmei Dai,Dehua Liu,Wei Du
MOF-derived carbon has extraordinary advantages including highly ordered morphology inherited from MOFs and improved chemical stability arising from its carbon nature, which may be a promising immobilized enzyme carrier. Herein, we prepared two MOF-derived carbon materials of different structures for the immobilization of lipase from Eversa® Transform 2.0 and systematically evaluated their application potential in biodiesel production system. Compared with C-C (derived from conventional microporous ZIF-8), 3DOM-C (derived from 3D ordered macro-microporous ZIF-8) exhibited superior immobilization performance with an 145.1% increase in enzyme loading and an 130.2% increase in activity. Moreover, lipase immobilized on 3DOM-C ( [email protected] ) showed better catalytic performance than [email protected] , with faster conversion rate in lipase-mediated biodiesel production. Remarkably, the higher surface hydrophobicity of the [email protected] was proved to be the key factor in its improved catalytic performance. Meanwhile, we found that the affinity between immobilized enzyme molecules and water significantly weakened the hydrophobicity of [email protected] and [email protected] , which could be of adverse effect on their application in biodiesel production. To enhance the hydrophobicity of immobilized lipase biocatalyst, a facile post-immobilization hydrophobic modification strategy was proposed by coating the [email protected] with polydimethylsiloxane (PDMS). The as obtained super hydrophobic [email protected] @PDMS biocatalyst showed excellent catalytic performance in biodiesel production, with a much higher initial reaction rate, which was 3.3 folds of that catalyzed by [email protected] , and 1.8 folds of that catalyzed by [email protected] . This work shed light on the great potential of constructing MOF-derived hierarchically ordered porous carbon for enzyme immobilization in extensive practical applications.
研究领域:
材料科学
·
生物技术
·
化学工程
·
酶技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·Vol. 34
·期 44
·2404439
·
IF 18.5
Sheng Zhang,Xiuxia Yang,Jianqiang Xiao,Xin Li,Qingpeng Peng,Siyuan Luo,Huaiqiang Ba,Yu Zhang,Xuhui Xu
Mechanoluminescence (ML) with the unique mechanical-to-optical energy conversion attracts wide attention for stress sensing. However, the development of ML materials is primarily based on crystalline material due to the crystal structure can provide an appropriate crystal field environment for emission center, which limits the expansion of ML materials and affects the deeper understanding of ML mechanism. Herein, the tunable full-color ML can be achieved in transparent amorphous glass system. The rare earth-doped transparent amorphous glass can produce ML under stress stimulations when in direct contact with polydimethylsiloxane (PDMS) or mixed with PDMS to prepare the ML elastomers. Based on the excellent ML performance of amorphous glass, an advanced device regarding the visualized detection of automotive brake tribo-force has been developed. The findings provide profound insights into the triboelectric potential induced ML phenomenon, which offers the guiding significance in the mechanics-related visualized detection and the design of multi-color ML materials in the future.
研究领域:
材料科学
·
光学
·
力学
·
智能材料
·
传感器
✓ 已验证
DOI
高影响因子
Advanced Science
·
2023
·Vol. 10
·期 17
·2206814
·
IF 15.1
Renwang Sheng,Jia Liu,Wei Zhang,Yifan Luo,Zhixuan Chen,Jiayu Chi,Qingyun Mo,Mingyue Wang,Yuzhi Sun,Chuanquan Liu,Yanan Zhang,Yue Zhu,Baian Kuang,Chunguang Yan,Haoyang Liu,Ludvig J. Backman,Jialin Chen
Stiffness is an important physical property of biomaterials that determines stem cell fate. Guiding stem cell differentiation via stiffness modulation has been considered in tissue engineering. However, the mechanism by which material stiffness regulates stem cell differentiation into the tendon lineage remains controversial. Increasing evidence demonstrates that immune cells interact with implanted biomaterials and regulate stem cell behaviors via paracrine signaling; however, the role of this mechanism in tendon differentiation is not clear. In this study, polydimethylsiloxane (PDMS) substrates with different stiffnesses are developed, and the tenogenic differentiation of mesenchymal stem cells (MSCs) exposed to different stiffnesses and macrophage paracrine signals is investigated. The results reveal that lower stiffnesses facilitates tenogenic differentiation of MSCs, while macrophage paracrine signals at these stiffnesses suppress the differentiation. When exposed to these two stimuli, MSCs still exhibit enhanced tendon differentiation, which is further elucidated by global proteomic analysis. Following subcutaneous implantation in rats for 2 weeks, soft biomaterial induces only low inflammation and promotes tendon-like tissue formation. In conclusion, the study demonstrates that soft, rather than stiff, material has a greater potential to guide tenogenic differentiation of stem cells, which provides comprehensive evidence for optimized bioactive scaffold design in tendon tissue engineering.
研究领域:
生物材料
·
组织工程
·
细胞生物学
·
免疫学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Yabei Zhang,Xiaoya Ding,Xu Zhang,Zhiyong Mao,Xiaoyu Xu,Fuyan Kang,Qianyun Tan,Yudong Li,Fa-Qian Liu
Marine biofouling constitutes a pervasive biological threat that seriously impedes the sustainable development of the marine economy. Slippery liquid-infused porous surfaces (SLIPS) were typically employed as marine coatings to mitigate biofouling. However, SLIPS are often hindered by rapid lubricant leaching, short service life, and a simple antifouling strategy, thereby limiting their applicability in marine environments. To circumvent the limitations of conventional SLIPS, synergistic antifouling strategies were frequently adopted. In this study, we developed a copper/graphene nanofluid-infused porous surface (Cu/G@uPDMS-oil) utilizing the breath figure method. The nanofluid can be firmly locked into the microstructure within polydimethylsiloxane (PDMS) to form a stable lubricating layer and provide a sustained release of silicone oil due to dynamic hydrogen bonding. In addition, when silicone oil is released from the coating surface, the intrinsic copper (Cu) and graphene (G) nanoparticles come into substantial contact with the surrounding solution, leading to galvanic corrosion. Galvanic corrosion produces synergistic antifouling through a dual mechanism of induced oxidative stress and copper ion (Cu2+) release. Consequently, the resulting coating exhibits high stability, continuous silicone oil leaching, and self-replenishing properties. Due to the labyrinth effect of graphene, the release rate of Cu2+ is significantly diminished to 6.2 μg·cm–2·day–1. Furthermore, this nanofluid-based smooth surface demonstrates superior antibacterial, anti-algal, and anti-conch properties. The developed Cu/G@uPDMS-oil coating holds great potential for significantly mitigating marine biofouling.
研究领域:
材料科学
·
海洋生物学
·
纳米技术
·
表面工程
·
腐蚀科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Jingjing Huang,Hu Liao,Yangyang Zhang,Wanze Wu,Min Wu,Xiao Gong
Combining light-stimulated actuators with large deformation and high sensitivity with superhydrophobic surfaces has great applications in emerging fields, such as smart bionics, microfluidic devices, and droplet manipulation. Here, using self-assembly and spray methods, light-responsive superhydrophobic films driven by UV light were prepared. Due to the low surface energy of polydimethylsiloxane (PDMS) and micronanostructures of ZnO, the film surface exhibited excellent superhydrophobicity. With the incorporation of light-responsive azobenzene groups, the film achieved a transition of azobenzene molecules from linear trans structures to bent cis structures under UV light irradiation. This change endowed the film with excellent driving properties, allowing the film to achieve bending angles of up to 90° under UV light irradiation with a power density of 70 mW/cm2. Additionally, the prepared light-responsive superhydrophobic films remained stable in bending tests, high temperatures, UV irradiation, and various organic solvent immersion tests. Based on the outstanding superhydrophobic and light-driven properties, light-responsive superhydrophobic films can be designed for applications in the fields of biomimetics and droplet manipulation.
研究领域:
智能材料
·
软体机器人
·
微流控
·
表面工程
·
光响应材料
·
仿生材料
✓ 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）