Chinese Journal of Natural Medicines
·
2021
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IF 3
Zheng-Ming QIAN,Zi WU,Qi HUANG,Chuan-Xi WANG,Guo-Yin TAN,Wen-Jia LI,Wan-Yang SUN,Gen-Pin LV,Hao GAO
An eco-friendly and fast HPLC method was developed for the determination of adenosine, inosine, guanosine and uridine in Cordyceps and related products (fermented mycelia of Hirsutella sinensis and Paecilomyces hepiali ). The sample was ultrasonically extracted using 0.5% phosphoric acid solutions for 2.5 min. Sample separation was performed on a Poroshell SB-Aq column (50 mm × 4.6 mm, 2.7 μm) using eco-friendly mobile phase consisting of formic acid and ammonium formate aqueous solution at a flow rate of 1.0 mL·min −1 . The detection wavelength was 260 nm. The developed HPLC method showed good linearity with correlation coefficients of 1.0000 in the test range. Good precision, repeatability and stability of this method were also observed (RSD ≤ 2.81%). The recovery ranged from 91.84%−105.19% (RSD ≤ 2.59%). Compared with reported methods, the current method did not use harmful organic solvent and took only 10.5 min. It obtained a high eco-score of 91 by the “Analytical Eco-Scale” tool. The developed method is eco-friendly and fast, which is suitable for the quality evaluation of Cordyceps and related products.
研究领域:
药学
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分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
·
IF 4.9
Jérémie Courtois,Chunyan Li,Chen Wang,Hongping Zhang,Heping Jin,Wei Feng
During the past decade, a large variety of materials dedicated to uranium seawater extraction has been developed for harvesting purposes. Yet, materials especially designed for decontamination following nuclear accidents are scarce and eco-friendly ones even rarer. In this study, hybrid microparticles made of biocompatible calcium carbonate and ε-poly(lysine) are used as efficient U sorbent in seawater. Their eco-friendly nature makes them interesting for both harvesting and on-site immobilization of radionuclides, also accounting their ability to settle in the seabed with limited impact on eco-systems. The material shows excellent U extraction capability in contaminated seawater ([U] = 10 ppm) with removal rate R of 87.7 % and extraction capacity of 513 mg per g of ε-poly(lysine) and remains efficient in natural condition ([U] = 2.8 ppb) with R = 39.8 %. In addition, the sorbent has a remarkable selectivity toward U versus V in U contaminated seawater as well as a significant affinity for Sr 2+ . DFT and XPS analyses revealed that U is adsorbed to ε-poly(lysine) via a chelation mechanism that involves amide and amine groups of lysine. Lability of the formed coordination complex allows easy recovery of captured U by contact with NaHCO 3 desorbing solution, ensuring recyclability of the material.
研究领域:
环境科学
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材料科学
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放射化学
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2024
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IF 3.8
Zhengbiao Liu,Dechao Hu,Chengyu Zheng,Kanghua Yu,Xiancheng Zhang,Wenshi Ma
Silicone elastomers, as good sealants and adhesives, have been widely applied in protective coatings, architectural decoration, electronic packaging, and other fields. However, the traditional cross-linking of silicone elastomers is highly dependent on toxic catalysts or heavy metals, which may inevitably lead to severe environmental pollution. Moreover, most silicone elastomers suffer from a poor adhesive performance. In this study, inspired by the high adhesion properties of mussels, an eco-friendly and catalyst-free silicone elastomer with high adhesion properties was prepared by using dopamine as a cross-linker and amino-functionalized polysiloxane as a base. Under mild conditions (pH = 8.5), dopamine was self-polymerized and underwent Michael addition and Schiff base reactions with amino groups to form robust elastomers. It was found that the cross-linking degree gradually increases with the dopamine content increasing from 2 to 6%, and the solvent resistance and thermal stability exhibit significant improvement. Meanwhile, the tensile strength increased by 245% from 0.22 to 0.77 MPa. Especially, the as-obtained silicone elastomers have excellent adhesion to different materials. The lap shear strength with aluminum substrates (1.09 MPa) is 3.6 times higher than that of conventional silicone elastomers. The development of catalyst-free bioinspired silicone elastomers with high adhesion may shed light on the research of eco-friendly silicone materials and offer innovative insight for mussel-inspired adhesives.
研究领域:
材料科学
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生物仿生学
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
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2022
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IF 6.206
Jianang Sha,Jing Yu,Rongrong Chen,Qi Liu,Jingyuan Liu,Jiahui Zhu,Peili Liu,Rumin Li,Jun Wang
Ships and underwater facilities suffer from marine biofouling, which causes great harm. The most effective method against biofouling is to use self-polishing antifouling coatings. However, traditional coatings achieve antifouling performance by releasing toxic heavy metal antifouling agents , causing ecological problems. To solve this contradiction, a self-polishing antifouling coating polymer based on eugenol methacrylate was prepared. The hydrolysis of phenolic ester group realizes the transformation of resin segment from hydrophobicity to hydrophilicity . The self-polishing process releases eugenol , which is natural and non-toxic into seawater . It is the first time when self-polishing coating polymer achieves self-polishing by hydrolysis of phenolic ester groups and release of natural phenolic products. Eugenol release rate was the fastest at the beginning of immersion of the coating, reaching 0.48 μg·cm −2 ·day −1 for EMFP-25. After immersion in artificial seawater for 15 days, the release rate of eugenol from the coating tends to be stable, and the EMFP-25 with the highest release rate can reach 0.14 μg·cm −2 ·day −1 . The resin has good antibacterial and anti-algae properties, and the mussel attachment experiments show that mussels have a tendency to avoid resin coatings with high eugenol content.
研究领域:
海洋生物学
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材料科学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Chan Hee Jung,Myung-Seok Lee,Dal Yong Kim,Min Gyu Shin,Soyeon An,Dong-Ku Kang,Jeong F. Kim,Seung-Eun Nam,Sung-Joon Park,Jung-Hyun Lee
Thin-film composite (TFC) membranes are employed in water treatment and thus significantly contribute to environmental remediation efforts. However, the underlying porous support membrane of TFC membranes is fabricated using large amounts of synthetic chemicals and organic solvents, which can adversely affect the environment. Hence, the development of ecofriendly porous membranes is necessary. In this study, we fabricated an all-biopolymer (chitosan (CHS) and cellulose)-based, mechanically robust porous membrane via aqueous solution processes. A porous CHS membrane was formed on cellulose-based traditional Korean paper as a backing fabric through pH-induced aqueous phase separation, followed by chemical crosslinking with pyrogallol, a plant-derived natural compound. The resultant highly porous (overall porosity = 68.1 ± 1.9%), mechanically reinforced CHS membrane had higher compaction resistance than commercial ultrafiltration membranes under hydrodynamically pressurized conditions (up to 15.5 bar). The prepared CHS membrane was subsequently used as a support for fabricating a TFC membrane via interfacial polymerization. The CHS-supported TFC membrane exhibited competitive reverse osmosis performance (water permeance = 1.68 ± 0.13 L m −2 h −1 bar −1 , NaCl rejection = 99.4 ± 0.1%) and long-term durability. The CHS membrane also showed excellent biodegradability, which enabled its ecofriendly disposal. Our study provides a sustainable platform for fabricating green membranes for various separation applications.
研究领域:
环境科学
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材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2024
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IF 18.5
Ya-Nan Wu,Hai-Bo Zhao,Ming-Jun Chen,Lei He,Dan-Xuan Fang,Shuai-Qi Guo,Fu-Rong Zeng,Yu-Zhong Wang
Semi-rigid polyurethane foams (SPUF) with high deformation resistance and strength are indispensable for cushioning applications. However, for high fire risk and cascaded pollutant effects, overused multifarious additives and foam wastes exacerbate global environmental concerns. One option to address this issue is to develop eco-friendly multifunctional flame retardants that participate in the material lifecycles of preparation, safe service, waste management, and sustainable recycling. Herein, a novel self-adaptive catalytic strategy is reported that exploits the temperature and agent structure-responsive catalytic ability of eco-friendly sodium propionate (SP), reconciling the often-conflicting properties of fabrication and recycling while effectively mitigating combustion risks and additive pollution. The adaptive catalytic function of SP impressively involves all aspects of foam life cycles: 1) catalyzing foaming without complex/hazardous catalysts; 2) providing superior flame-retardant efficiency with a high limiting oxygen index of 25.5% without relying on traditional flame retardants; 3) promoting in situ network fragmentation and reorganization into strong adhesives (5.8 MPa); and 4) further recycling of the newly formed adhesives in a self-driven sustainable manner. A novel green strategy is presented that addresses fire hazards, plastic pollution, and the unsustainability of recycling, minimizing the ecological risks of foam, which will positively impact future sustainable material design involving diverse additives.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Changmei Lin,Zhenhao Pei,Jinxin Lan,Hai Huang,Xiaojuan Ma,Shilin Cao,Chunhua Wang
Applying cellulose paper on the triboelectric material is the trend of developing eco-friendly triboelectric nanogenerator (TENG). However, the researchers always pay attention to improve the triboelectric property of cellulose paper by the grafting of functional groups and the introduction of conductive or high dielectric property materials, while neglecting the effects of lignocellulose fiber composition including hemicellulose and lignin. In this work, the contents of hemicellulose and lignin were adjusted by sodium hydroxide and sodium chlorite, respectively; and the effects of hemicellulose and lignin on the triboelectric performance of cellulose paper were evaluated. The results showed that the open-circuit voltage (V OC ) and short-circuit current (I SC ) changed slightly with increasing hemicellulose contents, while the V OC and I SC values increased from 49.9 ± 0.5 V to 94.7 ± 0.7 V and 2.3 ± 0.04 μA to 4.3 ± 0.03 μA in the range of lignin contents from 0.8 ± 0.1 % to 8.9 ± 0.2 % because lignin can make the surface potential of cellulose paper more positive. The triboelectric performance was further demonstrated by driving 50 commercial LEDs and harvesting energy from human motion. This work provides a new idea for improving the triboelectric performance of cellulose paper.
研究领域:
材料科学
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可再生资源
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Agricultural Science & Technology
·
2024
·
IF 2.3
Jian Zhang,Yi Zhang,Shan-shan Chen,Su-xia Zhang,Yun-hai Guo,Zhen-peng Kai
Slugs pose a significant threat to agriculture, causing substantial crop damage and economic losses. Traditional molluscicides harm nontarget organisms and endanger ecosystems. Environmentally friendly molluscicides that ensure safety for humans and animals and promote sustainable agriculture are urgently needed. This study is the first to explore the fumigant toxicity, contact toxicity, and repellent effects of four monoterpenoids (geraniol, citral, geranyl nitrile, and citronellal) against Philomycus bilineatus. Compared to metaldehyde, monoterpenoids exhibited stronger contact toxicity, leading to rapid slug elimination (within 4 h), while metaldehyde caused death in slugs over a longer period of 48 h. Among the monoterpenoids, citral has weaker contact toxicity compared with the other three compounds, and geranyl nitrile (GN) and citronellal have stronger fumigant toxicity than the other two compounds. In terms of repellence and antifeeding effects, citral has the weakest toxicity. GN and citronellal stand out with excellent molluscidal activity (LC50 values of 0.10 and 0.14 g/L, respectively). The computational results based on the density functional theory (DFT) indicate that appropriate energy gaps, electrophilicity indices, and molecular softness correlate with the high molluscidal activity of monoterpenoids. From the computational results of this study, GN and citronellal, which have a moderate energy gap (approximately 0.200 eV), show the best effectiveness in controlling the slugs. In addition, unlike metaldehydes, which have a long half-life and limited biodegradability, these monoterpenoids have low toxicity and are easily degradable in the environment, making them more environmentally friendly. These findings underscore the potential of monoterpenoid compounds as eco-friendly alternatives for managing slugs in agriculture and gardens, thereby reducing reliance on traditional chemical pesticides.
研究领域:
农业科学
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环境科学
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植物保护
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2017
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IF 9.446
Runyuan Ma,Liang Wang,Sai Wang,Chengtao Wang,Feng-Shou Xiao
Photocatalysts for pollutant degradation have been extensively investigated but extremely challenging for practical applications, because the radicals formed on the catalyst surface are pernicious to organisms in the nature. We develop a new concept of eco-friendly photocatalyst to impart shape-selective catalysis for pollutants removal but eco-friendly for organisms. The proof-of-concept design is demonstrated by fixing conventional photocatalysts (e.g. TiO 2 , Pt/TiO 2 ) inside of zeolite crystals to form a pomegranate-like structure, as confirmed by electron microscopy and FTIR spectroscopy. In the photodegradation with chlorophyll molecules and grasses as model of the organisms, the zeolite-fixed photocatalysts give ideal performances for the selective degradation of pollutants but are harmless to the organisms, outperforming the conventional photocatalysts. This unique phenomenon is reasonably attributed to the shape-selectivity of the zeolite sheath with uniform micropores, where the pollutant molecules with sizes less than zeolite micropores could be diffused but bulky organisms are hindered to access to the radicals on the TiO 2 surface.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Xule Chen,Tong Yang,Xinglu Cai,Yan Liu,Chengyi Huang,Jinsong He,Dong Tian,Gang Yang,Fei Shen,Yanzong Zhang
Sandy soils are suffering from water loss and desertification , which severely restrict the development of local agriculture . In this work, an eco-friendly hydrogel composed of borax and locust bean gum was synthesized to enhance the water retention capacity of sandy soil and support agricultural development in arid regions. Locust bean gum/borax hydrogel with a 3D network structure exhibited great water-absorbing capacity (130.29 g/g) within 30 min. After mixing 0.9 wt% hydrogel with sandy soil, the maximum soil water content , water retention time, soil porosity and soil organic matter were increased by 32.03 %, 14 days, 38.9 % and 8.64 g/kg respectively. Little effect on soil microorganisms revealed barely toxicity. Furthermore, the hydrogel was confirmed to be biodegradable at 43.47 % after 4 weeks. According to the study, locust bean gum/borax hydrogel possesses good water absorbing capacity, soil water retention ability, soil optimization ability and low adverse environmental impact. Together, it is inferred that the hydrogel can improve the water retention capacity of sandy soil in arid areas, promoting plant growth in arid areas.
研究领域:
农业科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2025
·
IF 7.8
Xiaoqi Ban,Jin Yao,Wanzhong Yin,Weifan Du,Taozhong Zhang,Yu Xie,Wenju Sun,Yulian Wang
Magnesite and dolomite exhibit similar crystal structures, chemical compositions, and surface properties, which pose significant challenges to their flotation separation. In response to the growing need for efficient and environmentally sustainable decalcification of magnesite, this study introduces luteolin (LUT), a novel eco-friendly depressant. The selective depression efficiency of LUT on dolomite within the magnesite flotation system was systematically assessed. Optimal flotation conditions (pH 11.0, LUT concentration of 60 mg/L, and NaOl concentration of 120 mg/L) resulted in a concentrate with 43.05 % MgO and 4.98 % CaO, effectively achieving the separation of magnesite from dolomite. The depression mechanism of LUT was thoroughly investigated through a combination of zeta potential, contact angle, FTIR, XPS, and AFM analyses. The results indicate that LUT’s hydroxyl groups preferentially adsorb onto the calcium sites of dolomite, preventing subsequent adsorption of sodium oleate, while exhibiting minimal interaction with magnesium sites on magnesite, thus preserving its flotation behavior. This study offers a promising, environmentally friendly solution for the selective separation of magnesite from dolomite.
研究领域:
矿物加工工程
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2022
·
IF 10.723
Lirong Yang,Xuan Luo,Lin Yan,Yawen Zhou,Shaoqing Yu,Hui Ju,Yan Wang,Lin Zhang
In the present study, a novel eco-friendly foam (CS-AMP) was successfully prepared by grafting adenosine 5′-monophosphate (AMP) with high biocompatibility onto environment-friendly monomer chitosan (CS). The CS-AMP foam was used to absorb uranium and exhibited an efficient selective adsorption of uranium from aqueous solution and natural seawater . Due to the phosphate group of AMP, the CS-AMP foam shows an excellent adsorption capacity of 311 mg/g (pH 5.0 and 308 K) for uranium, which is much higher than that of CS-PTA foam without modification by AMP. The adsorption process is fitted well with Sips isothermal and pseudo-second-order kinetic models . As a highly selective uranium adsorbent, it is expected to be applied to extract uranium from wastewater and seawater.
研究领域:
环境科学
·
材料科学
✓ 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）