CHEMICAL ENGINEERING JOURNAL
·
2017
·
IF 6.216
Xiaogang Guo,Chuan Lai,Xiang Jiang,Wenhai Mi,Yanjun Yin,Xueming Li,Yuanjie Shu
In the 21st century, it is bound to become an important trend for the assembly of novel micro/nano functional materials with long lifespan in the real world by using facile techniques. In this report, the concept of using a low-cost and convenient method of electrophoretic assembly and further surface functionalization by perfluoroalkyltriethoxysilane (FAS-17) modification to obtain superhydrophobic nanoscale composite coatings (e.g. Al/Bi 2 O 3 ) and its first demonstration are reported. The resulting low-energy coatings with nanoparticles distributed homogeneously in nanoscale and abundant rough reticular structures possess almost perfect superhydrophobic properties with a water contact angle (WCA) of ca.170° and a negligible roll-off angle. The water droplet impact dynamics is analyzed by a high-speed photography in detail. Additionally, the superhydrophobicity and exquisite heat release performance of the products keep almost unchanged after ultra-long exposure time and high relative humidity (>90%), respectively, indicating the excellent stability and great resistance to changeable environment and wide application potential in fields of surface chemistry, materials science and engineering, physics, etc. This study provides an effective general strategy for the design and development of superhydrophobic functional composites with wide application for different experimental and industrial purposes.
研究领域:
材料科学
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表面化学
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物理学
·
工程学
✓ 已验证
DOI
高影响因子
ACS Applied Polymer Materials
·
2024
·
IF 4.4
Tao Xue,Mengge Wang,Jinlin Man,Yudi Yang,Han Miao,Xinxin Li
In the ever-growing environmental concerns caused by crude oil spills and solvent discharges, our study pioneered an ingenious approach to fabricate superhydrophobic melamine formaldehyde (HMF) materials through in situ anchoring of a porous hyper-cross-linked polymer (HCP) and achieved stable integration of HCP on the MF surface by covalent bonds and hydrogen bonds instead of traditional adhesives. The resulting composite material exhibits exceptional performance with an oil adsorption capacity of 130 mL/g, a filtration/separation efficiency exceeding 99%, and remarkable environmental resistance and recyclability. The robust interfacial strength and high degree of cross-linking porous HCP facilitate tailorable design and easy adjustment of pore structures and ensure repeated use through simple squeezing. Notably, the hydrophobicity and porous structure of the sponge can be conveniently regulated by controlling the deposition amount of HCP, realizing a high adsorption capacity and/or efficient emulsion separation on demand. This study not only contributes to the advancement of wettability materials but also presents an efficient, versatile, and convenient method and toolbox to address diverse oil/water separation challenges, paving the way for sustainable environmental solutions and marking a significant stride toward a cleaner future.
研究领域:
材料科学
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环境科学
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Fei Li,Lei Zhu,Ling Chen,Yong Min,Yimin Qiu,Xiaoyan Liu
The two-spotted spider mite ( Tetranychus urticae ) is a major pest that causes severe agricultural losses. Its resistance to chemical acaricides diminishes their effectiveness, exacerbating their misuse and environmental pollution, highlighting the need for alternative solutions. This study presented a biomimetic nano silica acaricide (BNSA) developed using a fusion protein, BAP-R5, which integrated the acaricidal protein BAP from Bacillus vallismortis NBIF-001 with the R5 peptide from Cylindrotheca fusiformis . Through ecofriendly biomimetic silicification, the BAP-R5 protein achieved high encapsulation efficiency (91.2%-98.0%) within nano silica matrices. The resulting BNSAs featured tunable micromorphologies from dispersed nanoparticles to dense wet gels. The formulation sustained protein release in 14 days with release rates ranging from 12.5% to 21.0%, and robust adhesion to both mite cuticles and fava bean leaves. Notably, the BNSAs exhibited 2.45-fold higher contact toxicity against T. urticae compared to free BAP-R5, confirming synergistic effects of nanoencapsulation. Under abiotic stress (pH 2-12, 60-80 °C), the BNSAs retained 67.3%-93.9% residual activity versus 38.2%-71.5% for free protein, validating their environmental resilience. These results establish a novel paradigm for precision-targeted nano pesticide design through biomimetic engineering, addressing critical challenges in sustainable agriculture.
研究领域:
农业科学
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生物技术
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害虫防治
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Hui Rong,Pengwei Zhao,Manhua Lu,Liandong Deng,Shuangyang Li,Xiaobin Fan,Zhanpeng Ye,Jianhua Zhang,Anjie Dong
Detachable adhesives are extensively utilized in many fields such as electronic assembly and medical devices, yet achieving a balance between adhesive strength and removability still remains a significant challenge. In this study, we designed a kind of novel adhesive of organic-silicon nanogels (P(TPHA-Si)) based on the self-polymerizing of an organic siloxane monomer (TPHA-Si) in ethanol/water mixture under mild conditions. P(TPHA-Si) self-assembled adhesive possessed not only detachable and reuseable advantages, but also wide applicability and excellent harsh-environment resistance. Remarkably, the adhesive strength to glass reached up to 14.6 MPa, heretofore one of the highest strengths of detachable adhesives. The P(TPHA-Si) adhesive could be easily dissociated by ethanol infiltration, allowing for an environmentally friendly detachability and user-friendly reusability. On the other hand, P(TPHA-Si) adhesive could withstand harsh environmental conditions including different acid, alkali and salt solutions, various organic solvents, and −20–120 °C temperatures. Through empirical and theoretical computations, the molecular mechanism underlying the high-strength, detachable adhesion had been validated and elucidated. Considering the ease of processing, cost-effectiveness, Eco-friendly ethanol-assisted detachability and reusability, as well as strong adhesion under harsh conditions, the design of transparent P(TPHA-Si) adhesive offers a commendable pathway for the development of multifunctional detachable adhesives, which are expected to be able to exhibit great potential for applications in electronics and medical fields.
研究领域:
材料科学
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化学工程
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生物医学工程
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产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 34
·期 11
·2309288
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IF 19
Yi Liu,Mengyao Wu,Anqi Kang,Xiehaoran Zhang,Ronghui Xie,Yuanpei Huang,Jiaofang Huang,Lien-Yang Chou,Chao Zhong
Genetically modified microorganisms (GMMs) possess significant potential for a wide range of applications; however, their execution in real-world scenarios, particularly in environments characterized by scarce nutrients and unpredictable conditions, proves daunting. Drawing inspiration from the adaptability of natural seeds, living seed materials that combine a core–shell structure ZIF-8 and genetically engineered spores are introduced. By genetically modifying the Bacillus subtilis strain to express distinct fluorescent proteins, the visualization of spores within the hollow sphere is facilitated, allowing for differentiation between spore and bacteria states. Importantly, the ZIF-8 shell exhibits responsiveness to diverse nutrient levels, providing enhanced environmental resistance in comparison to bare spores upon exposure to hypochlorous acid, UV-C radiation, and even vacuum conditions. Moreover, the potential of living seed materials for living sensors of small molecules is showcased by elucidating that spores can be resuscitated into functional bacteria after release from ZIF-8 material. This research establishes a novel approach for the general fabrication of Metal-Organic Frameworks (MOF)-based living spore hybrid materials, offering environmentally controlled release of living materials across a multitude of applications.
研究领域:
生物技术
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材料科学
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微生物学
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环境科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）