PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Alix Marcelle Sansi Seukep,Damas Rossel Pandzou,Zhixiang Cui,Dhandapani Kuzhandaivel,Lionel Kinkpe,Xuan Zhou,Zixiang Weng,Longhui Zheng,Jianlei Wang,Xiaohong Ding,Lixin Wu
Superhydrophobic coatings often present a trade-off between transparency and mechanical robustness for glass substrates. Inspired by the general concept of natural superhydrophobic surfaces, a highly transparent superhydrophobic anti-icing composite coating based on a Polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE)/Polydimethylsiloxane (PDMS) blend polymer via electrospinning technology has been developed. By constructing a PVDF-TrFE/PDMS nanofiber network on a silanized trimethylsilane (TMS-s) /polydimethylsiloxane (PDMS) promoter layer (which acts as an interface-strengthening layer), the gradient structure design of the functional coating on the glass substrate was successfully realized. Experimental results demonstrate that the TMS-s/PDMS promoter layer significantly enhances the interfacial bonding strength between the PVDF-TrFE/PDMS nanofibers and the glass substrate, achieving a water contact angle of 154.1° ± 4°, a sliding angle of 3° ± 1°, and approximately 92.6 % transmittance. The adhesion-enhancing mechanism is further investigated through molecular dynamics simulation analysis. Results reveal that the introduction of TMS-s increases interfacial adhesion, attributed to strong siloxane bonds formed between TMS-s and the glass surface, as well as Si-O-C bonds between TMS-s and PDMS. This combination of interactions significantly improves the coating's mechanical robustness. This study provides a novel strategy for multifunctional protective coatings in applications such as building windows, solar panels, automotive windshields, and aircraft windows.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.5
Bo Yang,Hui Pan,Rui Ke,Haoyuan Li,Kai Liu,Jiahao Wang,Changyu Qu,Chao Ling,Yuan Huang
The oil pollution in aquatic ecosystems poses a serious threat to public health and ecological balance. In addressing this challenge, this investigation employed bacterial cellulose (BC) as the matrix material, through strategic incorporation of chemical cross-linking agents (Butane tetracarboxylic acid and graphene oxide) combined with freeze-drying technology and chemical vapor deposition (CVD) method to fabricate cross-linked BC (CBC) aerogels. Subsequent hydrophobic modification via chemical vapor deposition was implemented to optimize surface properties. Key findings revealed that the cross-linked composite aerogel demonstrated a homogeneous 3D lamellar architecture with negligible crystal precipitation, manifesting remarkable structural stability (linear shrinkage rate 5.88%) and ultrahigh porosity (99.9%) accompanied by minimal average pore diameter (1.9 nm). Enhanced thermal stability was evidenced by increased mass residual rate from 15.9% to 41.5% at 600 °C. The material maintained superior compression resilience through 10 compression cycles at 50% strain, preserving structural integrity in aqueous environments. Optimal hydrophobicity (contact angle 152°) was achieved after 3.5 h of vapor deposition, while remarkable adsorption capacities for various oils were recorded (45–204 g/g). Notably, the composite exhibited outstanding reusability, retaining 85.2% of ethanol adsorption capacity after 20 extraction cycles, and preserving 76.7% of paraffin oil adsorption capacity. These results collectively demonstrate the broad application prospects of this bio-based oil-absorbing material in oil-water separation technologies.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Optical Materials
·
2026
·
IF 7.2
Mengcheng Wang,Hongbing Shi,Di Wu,Li Jiang,Zhijuan Su,Zhuoqing Yang,Guifu Ding,Faheng Zang
Achieving low-cost patterning of 10 nm-scale nanostructures remains a critical challenge in nanofabrication. Conventional electron beam lithography has a prolonged processing time and limited throughput due to its intrinsic small-area processing nature. Extreme ultraviolet (EUV) lithography faces prohibitive costs in equipment and materials. While industrial nanoimprinting offers a lower-cost, high-throughput alternative, its resolution is fundamentally constrained by the template's minimum feature size. Herein, we present a new nanofabrication process that exploits the redeposition effect in ion milling to fabricate controllable 10 nm-scale nanogaps. This approach enabled the preparation of gratings and nanorings array integrated with noble metal nanogaps for applications in surface-enhanced Raman spectroscopy (SERS). Furthermore, gratings and nanopillar arrays with sidewalls coated by a metal mask were dry-etched to form a self-aligned stacked nanomorphology on a silicon substrate without optical alignment, inheriting the metal mask's minimum feature size. The resulting high-quality templates subsequently facilitated high-fidelity replication of diminutive structures via nanoimprint lithography (NIL). This scalable strategy holds significant potential as a feasible route for manufacturing applications in nanophononics, biosensing, quantum devices, integrated circuits (ICs), and beyond.
✓ 已验证
产品关联
DOI
高影响因子
Gels
·
2026
·Vol. 12
·期 7
·594
·
IF 6.4
Xiaoxu Wu,Zhiyu Huo,Miao Liu,Qiao Wang,Yang Wang,Zhi Li
Hydrophobic silica aerogels are widely used as thermal-insulation materials, but the thermal decomposition of their organic surface groups may affect their stability and safety during high-temperature service. In this study, ambient-pressure-dried silica aerogels modified with trimethylsilyl, dimethylsilyl, and methylsilyl groups were prepared and denoted as TSA, DSA, and MSA, respectively, to clarify how the degree of methyl substitution in the surface modifier controls the pyrolysis behavior of hydrophobic silica aerogels. Thermogravimetric analysis at different heating rates was combined with TG-FTIR, a model-free kinetic analysis, a model-fitting analysis and thermodynamic calculation. With decreasing methyl substitution from TSA to MSA, the aerogel framework became denser, the specific surface area decreased, and the contribution of solid-phase heat transfer increased slightly. The main pyrolysis process occurred at 250–800 °C and involved multiple overlapping reactions. The average activation energies of TSA, DSA, and MSA were 241.4, 246.6, and 285.5 kJ/mol according to the Kissinger–Akahira–Sunose (KAS) method and 243.0, 248.2, and 289.0 kJ/mol according to the Flynn–Wall–Ozawa (FWO) method, respectively. The higher activation energy of MSA indicates that the more condensed silica-rich framework and lower organic methyl content improves its resistance to the main degradation process. The model-fitting analysis further suggested an A1/2 mechanism for TSA and A2/5 mechanisms for DSA and MSA. TG-FTIR further confirmed the evolution of CO2, H2O, CH4, and C2H4and revealed distinct gas-release behaviors among the three samples. These results demonstrate that the surface methyl-substitution structure governs the balance between hydrophobic modification, pore-structure preservation, pyrolysis resistance, and volatile-product release, providing a basis for selecting surface modifiers for thermally stable silica-aerogel insulation materials under oxygen-limited high-temperature conditions.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 8
·3542
·
IF 4.6
Qing Liu,Chao Yan,Yan Wang
Applications of submicron-scale particles are of rising interest in separation science due to their favorable surface-to-volume ratio and their fabrication of highly ordered structures. The uniformly dense packing beds in columns assembled from nanoparticles combined with an electroosmotic flow-driven system has great potential in a highly efficient separation system. Here, we packed capillary columns using a gravity method with synthesized nanoscale C18-SiO2particles having diameters of 300–900 nm. The separation of small molecules and proteins was evaluated in the packed columns on a pressurized capillary electrochromatography platform. The run-to-run reproducibility regarding retention time and peak area for the PAHs using a column packed with 300 nm C18-SiO2particles were less than 1.61% and 3.17%, respectively. Our study exhibited a systematic separation analysis of small molecules and proteins based on the columns packed with submicron particles combined with the pressurized capillary electrochromatography (pCEC) platform. This study may provide a promising analytical approach with extraordinary column efficiency, resolution, and speed for the separation of complex samples.Keywords:submicron scale particles;pressurized capillary electrochromatography;separation
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 47
·期 16
·7930-7938
·
IF 3.3
Lingyun Wu,Liang Gao,JiaMing Li,Tianyu Wu,Dongli Chen,Zhou Manxi,Gang Sui
Adsorbent materials with high absorption capacity, stable mechanical properties, greenness and economy are highly desirable for efficient removal and recovery of oil from wastewater. Herein, an ultralight, low-cost and reusable hydrophobic aerogel of cellulose acetate/polyethylene oxide hybrid nanofibers was developed through thermal crosslinking and organosilicon modification. Through thermal crosslinking and an ice crystal template, a hierarchical pore structure was obtained which endowed the aerogel with mechanical stability and oil-absorption capacity. In addition, the structure was further strengthened after chemical vapor deposition of methyl trichlorosilane and good hydrophobicity (contact angle of 135.5°) can be realized. The surface-modified aerogel presented an ultralow density (8.74 mg cm−3), excellent resilience (completely recover to its original height after 50 compression cycles), high absorption capacity (weight gain of 63–128 g g−1) and reusability. Therefore, nanofibrous aerogels with outstanding compressive resilience and reusability make it promising to meet the increasing demand in the field of oil pollution cleaning.
✓ 已验证
产品关联
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2023
·
IF 12.6
Xingyu Meng,Ping Guo,Jian Li,Haikang Huang,Zeqi Li,Hailong Yan,Zonglin Chu,Yi-Ge Zhou
In this work, we report a versatile and tunable platform for the construction of various cell array biochips using a simple soft lithographic approach to pattern polydopamine (PDA) arrays via microcontact printing (μCP). Instead of direct polymerization of PDA on the polydimethylsiloxane (PDMS) tips, dopamine monomers were first printed on the substrate followed by a self-oxidative polymerization step facilitated by ammonia vapor to grow PDA in situ , which greatly reduced the reaction time and prevented the PDMS tips from damaging. The improved robustness and utility of the PDMS tips allows the formation of tunable PDA array chips with controllable PDA feature size and shape. As a result, single cell, multi-cells and cell line arrays can be constructed. The obtained cell array chips showed high single cell capture efficiency, providing a standardized single cell array analysis platform. Meanwhile, the adhered cells can maintain excellent viability and proliferation ability on the PDA chips. Moreover, a cytotoxicity sensor with single cell resolution was enabled on the single cell array chip. This work provides a promising cell array biochip platform for high-throughput cellular analysis and cell screening.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Tao Liu
How to use simple and effective methods to achieve the recycling of discarded durian shell (DP) is still a huge challenge. Herein, the one-step in situ hydrophobic modification method based on self-generated surface roughness of low surface energy polysiloxane nanofilaments is proposed to prepare natural armor-protecting absorbent from discarded DP while imparting the absorbent versatility. This method gives the absorbent outstanding oil-water selectivity . For the absorption of chloroform , the absorbent can reach the absorption equilibrium in only 10 s, holding rapid absorption kinetics. The absorbent also shows a good recyclability and high oil retention capacity. In addition, the hydrophobicity also allows the absorbent to remove particulate pollutants from the surface, holding exceptional self-cleaning ability. Direct turning the pristine DP into the multifunctional material provides simpler preparation process, which can be used as a new design idea for the practical application of the DP.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Chengqing Tang,Sheng Zhang,Jiapeng Zhang,Xiaohua Zhang,Zhihong Hang,Yitan Li,Zhaohui Yang
Electromagnetic interference (EMI) shielding materials with high thermal resistivity, lightweight and flexibility have been intensively demanded to protect precision electronic instruments in various cutting-edge fields. Herein, using a low-temperature growth strategy, we successfully constructed a carbon nanotube (CNT) @ silicon carbide (SiC) coaxial 3D porous composite sponge with comprehensive outstanding performances, including low density of 15–32 mg·cm −3 ; super elasticity with high shape-recovery of 95 % at compression strain of 96 %; reversible compression-release stability with shape retention of 86 % and stress retention of 85 % after 1000 loading–unloading cycles; excellent thermal resistivity of over 1000 °C in Argon or 700 °C in Air; eye-catching EMI shielding performance with EMI shielding effectiveness of up to 75.7 ± 6 dB in X-band which, to the best of our knowledge, is the highest value for silicon carbide (SiC) based porous EMI shielding materials. Our results not only provide guidance for the further development of the next-generation EMI shielding materials under extreme conditions, but also cast a light to explore fundamental mechanisms behind porous EMI shielding materials.
✓ 已验证
产品关联
DOI
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 .
✓ 已验证
产品关联
DOI
高影响因子
FOOD RESEARCH INTERNATIONAL
·
2022
·
IF 7.425
Yundong Lai,Dongming Li,Tieliang Liu,Chuyun Wan,Yi Zhang,Yufei Zhang,Mingming Zheng
To address the problems of long reaction times and limited range of adaptation in enzymatic synthesis medium- and long-chain triacylglycerols (MLCTs), a broadly applicable solvent-free enzymatic interesterification strategy was proposed. Candida sp. lipase (CSL) was immobilized on hydrophobic hollow mesoporous silica spheres (HHSS) to construct a biocatalyst designated as CSL@HHSS with a 15.3 % immobilization yield and a loading amount of 94.0 mg/g. The expressed activity and the specific activity were 20.14 U/g and 173.62 U/g, which were 4.6 and 5.6 times higher than that of free CSL, respectively. This biocatalyst demonstrated higher activity, wider applicability, and excellent reusability. Linseed oil, sunflower oil, perilla seed oil , algal oil, and malania oleifera oil were applied as substrates to produce MLCTs with medium-chain triacylglycerols (MCT) catalyzed by CSL@HHSS through interesterification in yields ranging from 69.6 % to 78.0 % within 20 min. Specific fatty acids, including linolenic acid , oleic acid , DHA , and nervonic acid (the first reported), were introduced into MLCT's skeleton, respectively. The structures were finely analyzed and identified by GC and UPLC-MS. The catalytic efficiency value of CSL@HHSS in catalyzing interesterification between linseed oil and MCT (70 ℃, 20 min, lipase 6 wt%) is 0.86 g/g∙min, which is the highest ever reported. This paper presents an effective and sustainable strategy for functional MLCTs production.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2023
·
IF 11.2
Xiaodong Hu,Bo Yang,Ming Hao,Zhijun Chen,Yanbo Liu,Seeram Ramakrishna,Xiaoxiao Wang,Jinbo Yao
Oil pollution has caused more and more serious damages to the environment, especially to water. Oil and water separation technologies based on high-performance absorbing materials have attracted extensive attentions. Herein, elasticity-enhanced bacterial cellulose (BC) aerogel is synthesized for oil/water separation through thermochemical vapor deposition (CVD) catalyzed by 1, 2, 3, 4-butanetetracarboxylic acid (BTCA). BTCA has two functions, namely, esterification with BC and catalyzing CVD . The prepared aerogel could be recovered soon after being compressed and the elastic recovery was >90 % at set maximum deformation of 80 %. And, it also exhibits vigorous fatigue resistance with an elastic deformation of >80 % after 50 cycles. The high elastic and hydrophobic aerogel is very suitable for absorbing and desorbing oils by simple mechanical squeezing. The adsorption capacity for n-hexane and dichloroethane maintain 87 % and 81 % after 50 cycles, respectively, which implies robust reusability. Importantly, the CVD could also be catalyzed by other solid acids such as citric acid and vitamin C. This design and fabrication method offers a novel avenue for the preparation of hydrophobic bacterial cellulose aerogel with high elasticity.
✓ 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）