CHEMICAL PHYSICS LETTERS
·
2022
·
IF 2.719
Lifeng Han,Yuheng Liu,Chaoqun Chang,Meng Liu,Zhikun Peng,Feilong Gong
We reported the design of cactus-like Mo-WO 3 nanoarchitecture assembled of 1D nanoneedles and 2D nanosheets for achieving a highly improved NO 2 sensing performance. The nanoneedles were vertically studding between the nanosheets forming a cactus-like WO 3 nanoarchitecture, leading to highly exposed absorption sites. Mo was introduced in the WO 3 nanoarchitecture to introduce oxygen vacancy, resulting in highly activated sites. The resultant 2%Mo-WO 3 delivered the sensitivity (Rg/Ra) of 285 to 10 ppm NO 2 , which was nearly three-times higher than that of pristine WO 3 . The recovery time was only 24 s, which was greatly decreased, compared with 172 s of pristine WO 3 .
研究领域:
材料科学
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纳米技术
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环境传感
✓ 已验证
产品关联
DOI
高影响因子
Food Science and Human Wellness
·
2024
·
IF 5.6
Rui Liu,Fangxin Chu,Zheng Yan,Hanqing Chen
Three novel acidic polysaccharide fractions (OFPP-1, OFPP-2, OFPP-3) with different molecular weights (803.7, 555.1 and 414.5 kDa) were isolated from the peeled Opuntia dillenii Haw . fruits by alkali-extraction, graded alcohol precipitation and column chromatography. Structural analysis indicated that OFPPs were pectic polysaccharides consisting of rhamnose, arabinose and galactose residues. The backbone of OFPP-1 consisted of a repeating unit →6- α - D -Gal p A-(1→2)- α - L -Rha p -(1→ with T- α - D -Gal p A-(1→6)- α - D -Gal p A-(1→4)- α - D -Glc p- (1→, T- β - D -Xyl p -(1→6)- α - D -Gal p A-(1→4)- α - D -Glc p- (1→ or T- α - D -Gal p A-(1→3)- α - L -Ara f -(1→ as the side chains. The backbone of OFPP-2 consisted of a disaccharide repeating unit →2)- α - L -Rha p- (1→4)- β - D -Gal p A-(1→ with T- β - L -Ara f -(1→ as the branches substituted at the O-4 position of →2,4)- α - L -Rha p -(1→. Whereas the backbone of OFPP-3 was →2,4)- α - L -Rha p -(1→2)- α - L -Rha p -(1→3)- β - L -Ara f -(1→ or →2,4)- α - L -Rha p -(1→2)- α - L -Rha p -(1→4)- β - D -Gal p A-(1→, which was branched at the O-4 position of →2,4)- α - L -Rha p -(1→. Moreover, these 3 polysaccharide fractions could protect Huh-7 cells against H 2 O 2 -induced oxidative stress to different extents by decreasing the MDA content and increasing the SOD, CAT, GSH-Px activities and the GSH level in the Huh-7 cells. These results suggest that OFPPs have the potential to be used as natural antioxidants.
研究领域:
植物化学
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分子生物学
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药理学
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产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 31
·期 14
·2008514
·
IF 18.808
Tiancun Liu,Shuangqiang Chen,Weiwei Sun,Li-Ping Lv,Fei-Hu Du,Hao Liu,Yong Wang
Detrimental dendritic lithium (Li) growth, infinite volume expansion of Li deposition and inevitable excess electrolyte consumption have always impeded the successful application of Li metal anodes. Herein, a unique lithiophilic vertical cactus-like framework (LVCF) derived from a Zn/Cu-based coordination polymer through in situ chemical etching of Cu foam is proposed to enhance the safety and electrochemical performance of Li metal anodes. An ingenious strategy of releasing Cu ions from Cu foam in the presence of organic ligands is implemented successfully to achieve the coordination polymer precursor, resulting in the coexistence of massive lithiophilic nitrogen-containing functional groups, ZnO quantum dots and in situ grown carbon nanotubes (CNTs) in the LVCF, which is beneficial to avoiding the generation of harmful Li dendrites. Benefiting from the positive effects of the improved lithiophilicity, decreased local current density and relieved volume expansion, LVCF delivers an ultrastable Coulombic efficiency of 98.6% for 600 cycles at 1 mA cm –2 and an improved cycling lifespan of 1800 h for symmetric cells. Full cells comprising LVCF@Li anodes and LiFePO 4 cathodes can deliver an ultrahigh capacity of 101.8 mAh g –1 (capacity retention ratio: 77.9%) after 900 cycles at 1 C and excellent rate performance.
研究领域:
材料科学
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电化学
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DOI
高影响因子
LANGMUIR
·
2024
·
IF 3.7
Menghao Lin,Chengfei Deng,Qun Li,Xinjuan Zeng,Lichun Dong,Cailong Zhou
Drawing inspiration from the unique properties of cactus spines and desert beetle shells, we have designed a biomimetic stainless steel mesh specifically for efficient water-in-oil emulsion separation. The tapered arrays of cactus spines are prepared by a light-curing-templating method, and the hydrophobic regions are constructed by adhering hydrophobic silica nanoparticles to the surface of the mesh. This innovative design takes full advantage of the unique properties of these two natural plants, which can agglomerate tiny emulsified water to achieve an emulsion-breaking effect only under static conditions. At the same time, the stainless steel mesh with the conical arrays has a high water-in-oil emulsion separation efficiency (up to 99.6%), high permeance (2400 L·m–2·h–1·bar–1), and good cycling performance. The concept of dual biomimetic explored in this work may extend beyond oil–water separation to encompass various applications, such as fog collection, droplet manipulation, and more.
研究领域:
材料科学
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环境工程
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仿生学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2024
·
IF 3.8
Chengfei Deng,Wei Zhou,Yufeng Li,Menghao Lin,Lichun Dong,Cailong Zhou
Fog harvesting is a promising technique to obtain fresh water in arid climates. Through a combination of the template method and the photocuring technique, we effectively crafted cactus-inspired structures on a copper mesh to enhance the coalescence and transport of droplets. The spacing of the needle array can be readily customized by altering the quantity of holes in the photomask. Simultaneously, the wettability of both the mesh and the conical needles can be modified through a straightforward surface treatment. The cactus-inspired superwetting meshes could be used as an effective fog collector. Droplets on a superhydrophilic copper mesh with a superhydrophilic needle array (HICM-NA) can swiftly and directly migrate due to Laplace pressure induced by the shape gradient and capillary forces stemming from the groove structure on the needles. The depth of the groove progressively grows from the needle tip toward the root, leading to a gradual amplification of the capillary force on the droplet as it traverses the surface. In addition, HICM-NA adopts a mode of liquid film transmission, which can reduce the friction resistance during transportation. The water collection efficiency of HICM-NA is as high as 17.7 kg h–1 m–2. However, a superhydrophobic copper mesh with a hydrophilic needle array (HOCM-NA) has a high barrier between the mesh and the needle, suppressing the transport of droplets.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
Environmental Science-Nano
·
2020
·Vol. 7
·期 3
·903-911
·
IF 7.683
Lei Zhu,Hui Li,Yingying Yin,Zhaozhen Cui,Chao Ma,Xiaofang Li,Qingzhong Xue
It is of great significance to develop novel superhydrophilic/underwater superoleophobic materials using a facile and simple method for efficiently separating oily wastewater. In this work, a completely inorganic hierarchical structure made up of a Co and Ni double hydroxide (CoNi–OH) was successfully prepared using a simple one-step in situ method. Combining the unique hierarchical architecture with strong water locking capability, a biomimetic cactus-like hierarchical CoNi–OH-4 coated stainless steel mesh (CoNi–OH-4/SSM) exhibits excellent superhydrophilicity/underwater superoleophobicity and superior anti-oil-fouling capability for high-efficiency oil/water separation with an ultrahigh flux (>37 227 L m−2 h−1) and excellent oil rejection ratio of >99.95%. Continuous lubricating oil/water separation tests demonstrated that CoNi–OH-4/SSM shows high separation capability and excellent recycling over 20 cycles with a stable flux of 37 000 L m−2 h−1 and oil rejection ratio of >99.90%. Furthermore, CoNi–OH-4/SSM exhibits outstanding mechanical, chemical, and long-term stability. Biomimetic CoNi–OH-4/SSM, made using a simple preparation method, has superior anti-oil-fouling properties, excellent oil/water separation performance, and outstanding mechanical and chemical stabilities, revealing its great potential for practical applications in oil/water separation.
研究领域:
材料科学
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环境工程
✓ 已验证
DOI
高影响因子
TEXTILE RESEARCH JOURNAL
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2024
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IF 1.6
Li-Yan Liu,Guo-Hua Liu,Bing-Bing Shou,Ting-Ting Li,Hai-Tao Ren,Jia-Horng Lin,Ching-Wen Lou,Yu-Man Xu
The human body in a hot environment or during intense training will sweat a lot. Traditional cotton fabrics are soft and breathable, but they tend to absorb moisture easily and evaporate it slowly, which makes people feel cold and wet. Sweat staying on fabrics for a long time could also cause bacteria to grow. Thus, it is necessary to transport the excessive sweat from the gathering section to the collection points along the surface paths in time to minimize such problems. The mechanism of directional water transport of desert beetles, cacti, nepenthes, and river meanders was referenced in this paper. The paths in dot, tree, V-shape, and river meander patterns were designed and manufactured from the inspiration of these natural architectures. The paths were coated on the surfaces of selected knitted fabrics with different structures through a one-step coating process. The optimal recipe of hydrophobic solution was determined when 0.1 g hydroxyethyl-cellulose (HEC) was added into MS-S002 solution. The results showed that sweat movement is mainly influenced by FL, FWD, FG, and knitted structure. The continuous and enclosed paths such as tree and river contribute to a better sweat moving track than those of dot and V-shape ones. Terry structure is more suitable for surface sweat transport than plain and pique. The highest movement speed of the terry structure with a tree pattern reaches 0.43 cm/s, followed by that of the terry structure with river pattern 0.35 cm/s. The coated fabrics also have ideal moisture and air permeability for wearing.
研究领域:
纺织科学
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生物仿生学
✓ 已验证
DOI
高影响因子
ULTRASONICS SONOCHEMISTRY
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2023
·
IF 8.4
Xue Li,Baokun Qi,Shuang Zhang,Yang Li
Cactus is a tropical fruit with a high nutritional value; however, little information is available regarding the comprehensive utilization of its byproducts. This study aimed to explore the composition and nutritional value of cactus fruit seed oil (CFO) and reveal the effects of ultrasound-assisted extraction and traditional solvent extraction on oil quality. Foodomics analysis showed that CFO extracted using a traditional solvent is rich in linolenic acid (9c12cC18:2, 57.46 ± 0.84 %), α-tocopherol (20.01 ± 1.86 mg/100 g oil), and canolol (200.10 ± 1.21 μg/g). Compared to traditional solvent extraction, ultrasound-assisted extraction can significantly increase the content of lipid concomitants in CFO, whereas excessive ultrasound intensity may lead to the oxidation of oils and the formation of free radicals. Analysis of the thermal properties showed that ultrasound had no effect on the crystallization or melting behavior of CFO. To further demonstrate the nutritional value of CFO, a lipopolysaccharide (LPS)-induced lipid metabolism imbalance model was used. Lipidomics analysis showed that CFO significantly reduced the content of oxidized phospholipids stimulated by LPS and increased the content of highly bioactive metabolites such as ceramides, thus alleviating LPS-induced damage in C. elegans . Hence, CFO is a functional oil with high value, and ultrasound-assisted extraction is advocated. These findings provide new insights into the comprehensive utilization of cactus fruits.
研究领域:
食品科学
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植物化学
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营养学
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产品关联
DOI
PubMed
高影响因子
Foods
·
2022
·Vol. 11
·期 23
·3814
·
IF 5.561
Ana Cristina S. Martins,Gracy Kelly V. de V. Medeiros,Jaielison Yandro P. da Silva,Vanessa B. Viera,Paternak de S. Barros,Marcos dos S. Lima,Marcelo S. da Silva,Josean F. Tavares,Yuri M. do Nascimento,Evandro F. da Silva,Juliana K. B. Soares,Evandro L. de Souza,Maria Elieidy G. de Oliveira
In this study, we evaluated the physical, nutritional, and bioactive properties of mandacaru cladode flour (Cereus jamacaruDC.). The granulometric profile revealed particles with non-uniform geometry, flakiness, a rectangular tendency, and a non-homogeneous surface, with particle sizes ranging from 20 to 60 µm. The flour presented low water activity (0.423), a moisture content of 8.24 g/100 g, high ash (2.82 g/100 g), protein (5.18 g/100 g), and total carbohydrate contents (74.48 g/100 g), and low lipid contents (1.88 g/100 g). Mandacaru flour is an excellent source of insoluble dietary fiber (48.08 g/100 g), calcium (76.33%), magnesium (15.21%), and potassium (5.94%). Notably,1H NMR analysis revealed the presence of N-methyltyramine. Using HPLC chromatography, glucose was identified as the predominant sugar (1.33 g/100 g), followed by four organic acids, especially malic acid (9.41 g/100 g) and citric acid (3.96 g/100 g). Eighteen phenolic compounds were detected, with relevant amounts of kaempferol (99.40 mg/100 g), myricetin (72.30 mg/100 g), and resveratrol (17.84 mg/100 g). The total phenolic compounds and flavonoids were 1285.47 mg GAE/100 g and 15.19 mg CE/100 g, respectively. The mean in vitro antioxidant activity values were higher using the FRAP method (249.45 µmol Trolox TEAC/100 g) compared to the ABTS•+method (0.39 µmol Trolox TEAC/g). Finally, the ascorbic acid had a content of 35.22 mg/100 g. The results demonstrate the value of mandacaru as a little-explored species and an excellent matrix for the development of flours presenting good nutritional value and bioactive constituents with excellent antioxidant potential.Keywords:Cactaceae;drying;nutritional composition;bioactive compounds;unconventional plant food
研究领域:
植物学
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食品科学
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营养学
✓ 已验证
DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2017
·
IF 4.421
Xuqiang Ji,Wenling Zhang,Wenpeng Jia,Xiaoxia Wang,Yu Tian,Li Deng,Jingquan Liu
The cactus-like double-shell structured SiO 2 @TiO 2 microspheres (CDS SiO 2 @TiO 2 microspheres) with high dielectric properties were successfully fabricated and utilized as high-performance electrorheological (ER) fluids and microwave absorbing materials. The SiO 2 nanospheres with average diameters of 190 nm were synthesized by the hydrolysis of tetraethyl orthosilicate (TEOS), and used as the core for the first coating layer of TiO 2 achieved by sol-gel method. The final cactus-like TiO 2 layer was prepared via a hydrothermal method. The morphology of the resultant samples was characterized via transmission electron microscopy (TEM), scanning electron microscopy (SEM) and scanning transmission electron microscopy (STEM). This novel CDS SiO 2 @TiO 2 microspheres based suspension exhibited improved ER properties compared to conventional bare SiO 2 spheres.
研究领域:
材料科学
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物理学
✓ 已验证
产品关联
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2021
·
IF 4.098
Wenwen Chen,Chen Li,Zhi Yu,Ying Song,Xiubing Zhang,Dejiang Ni,De Zhang,Pei Liang
Paraquat is a highly effective herbicide and widely used in agricultural production. However, paraquat residue is harmful for human health and can cause irreversible hazard. Thus, it is crucial for monitoring of paraquat residues. In this paper, an efficient SERS platform based on cactus-inspired nanoparticles is proposed for sensitive detection of paraquat. The cactus-liked nanoparticles obtained from one-pot stepwise reduction method possess multiple spiny structures and can produce abundant hot spots, resulting in remarkable SERS performance. SEM, TEM, UV–vis and Raman tests were conducted to characterize and optimize the morphology of cactus-liked nanoparticles under different preparation conditions. The synthesis mechanism and corresponding parameters influence mechanism of cactus-liked nanoparticles were explored in detail. Optimized substrate exhibited a high sensitivity with the detectable concentration of crystal violet (CV) down to 10 -9 M and an excellent reproducibility proved by SERS mapping. Furthermore, it behaved good linear relationship with a correlation coefficient (R 2 ) of 96.89% between Raman intensities and concentrations of paraquat, which indicates the SERS substrate prepared with cactus-liked nanoparticles could offer a great potential for identification of paraquat.
研究领域:
农业科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
·
2024
·
IF 4.1
Xuehu He,Chunyan Chen,Yuheng Liu,Jiancai Le,Guoqing Xiao,Chunlin Chen,Yucheng Wang,Jian Zhou
Cactus-like ZnO@three-dimensional reduced graphene oxide aerogels (3D rGA) were obtained via a hydrothermal method. The 3D rGA had an interconnected large-size network structure, and cactus-like ZnO nanoparticles were uniformly distributed on the 3D rGA. The gas sensors based on cactus-like ZnO@3D rGA showed a high response (81.07) and a fast response/recovery time (15/27 s) to 10,000 ppm hydrogen at room temperature (25 ℃), as well as an excellent stability and selectivity toward hydrogen. The improved hydrogen sensing performance of this 3D structure was mainly related to the high conductivity and porous structure of reduced graphene oxide. Besides, the p-n heterojunction formed between ZnO and reduced graphene oxide was also a significant factor for the performance improvement. The results indicated that the cactus-like ZnO@3D rGA material was promising for the detection of hydrogen at room temperature.
研究领域:
材料科学
·
传感器技术
✓ 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）