JOURNAL OF CELLULAR PHYSIOLOGY
·
2021
·Vol. 236
·期 8
·5921-5936
·
IF 6.384
Sijia Liang,Jing Luo,Muna Alariqi,Zhongping Xu,Aoli Wang,Muhammad Naeem Zafar,Jun Ren,Fuqiu Wang,Xuefei Liu,Yanfeng Xin,Haonan Xu,Weifeng Guo,Yanqin Wang,Weihua Ma,Lizhen Chen,Keith Lindsey,Xianlong Zhang,Shuangxia Jin
Plant bugs (Miridae species) have become major agricultural pests that cause increasing and severe economic damage. Plant-mediated RNA interference (RNAi) is emerging as an eco-friendly, efficient, and reliable strategy for pest management. In this study, we isolated and characterized a lethal gene of Apolygus lucorum and named it Apolygus lucorum LIM ( AlLIM ), which produced A. lucorum mortality rates ranging from 38% to 81%. Downregulation of the AlLIM gene expression in A. lucorum by injection of a double-stranded RNA (dsRNA) led to muscle structural disorganization that resulted in metamorphosis deficiency and increased mortality. Then we constructed a plant expression vector that enabled transgenic cotton to highly and stably express dsRNA of AlLIM ( dsAlLIM ) by Agrobacterium -mediated genetic transformation. In the field bioassay, dsAlLIM transgenic cotton was protected from A. lucorum damage with high efficiency, with almost no detectable yield loss. Therefore, our study successfully provides a promising genetically modified strategy to overpower A. lucorum attack.
研究领域:
植物保护
·
分子生物学
·
农业科学
✓ 已验证
DOI
PubMed
高影响因子
POLYMER DEGRADATION AND STABILITY
·
2019
·
IF 3.78
Shuo Huang,Yajuan Feng,Shengnan Li,Yang Zhou,Fengxiu Zhang,Guangxian Zhang
A novel self-buffering flame retardant ammonium amino trimethylene phosphate (AATMP) was synthesized by a facile one-step water-solvent method to solve the problem of flammable cotton triggering easily and spreading fire. The structure of AATMP FR was verified by FT˗ IR, 1 H NMR, 13 C NMR, and 31 P NMR spectra. AATMP was grafted onto cotton fabrics using the dip-dry-cure method, and the grafted cotton was confirmed by FT-IR spectra. The limiting oxygen index (LOI) of cotton treated with a mass concentration of 15% AATMP solution reached 43.9%. After 30 and 50 laundering cycles, LOI values were maintained at 34.8% and 29.7%, respectively, suggesting that AATMP can be used as a durable flame retardant. The vertical flammability of treated cotton indicated no afterflame or afterglow time for comparison. Cone calorimetry results revealed that the total heat release of treated cotton was 1.6 MJ/m 2 , lower than that of control cotton (2.8 MJ/m 2 ). The peak heat release rate of control cotton was 195.1 kW/m 2 , much higher than that of treated cotton (16.1 kW/m 2 , further confirming the efficient fire resistance of AATMP. Thermogravimetry analysis and thermogravimetric-infrared spectroscopy indicated that AATMP FR altered the thermal decomposition pathway of treated cotton. X-ray diffraction patterns and scanning electron microscopy suggested that the structure of treated fibers was hardly affected. The tensile strength and whiteness of treated cotton fabrics were sustained well due to the self-buffering property of the neutral AATMP molecule.
研究领域:
材料科学
·
纺织工程
✓ 已验证
产品关联
DOI
高影响因子
PEST MANAGEMENT SCIENCE
·
2024
·Vol. 80
·期 9
·4253-4263
·
IF 3.8
Ying Zhang,Tao Zhang,Xinhang Wang,Zhipeng Bian,Xiaofang Zhang,Guoqing Yang,Yanhui Lu
BACKGROUND Insects use odor detection to sense their surroundings. Use of volatile compounds, such as essential oils (EOs) of plants, to repel pests and disrupt their olfaction-driven behaviors has great practical potential for use in integrated pest management. Despite the available information on the repellent effects of EOs on herbivorous insects, the olfaction-based mechanisms remain unknown. RESULTS Y-tube olfactometer tests showed that the EOs of three Lamiaceae plants – Mentha arvensis L., Mentha piperita L. and Lavandula angustifolia Mill. – were significantly repellent to winged cotton aphid, Aphis gossypii Glover. Electrical penetration graph (EPG) tests indicated the EOs reduced phloem feeding and increased the level of non-productive probing by the aphids. The EOs also reduced the fecundity of winged Aphis gossypii . Electrophysiological bioassays and gas chromatography–mass spectrometry (GC–MS) identified five physiologically active volatiles, that is menthone, isomenthone, neomenthol and menthol from Mentha piperita ; menthone and menthol from Mentha arvensis ; and linalool from L. angustifolia . Behavioral tests confirmed that all five compounds repelled winged Aphis gossypii . Under field conditions, the growth rate of aphid populations after 7 days was significantly lower in fields treated with these compounds than in the control fields. CONCLUSION Our findings demonstrated that three EOs not only repelled winged Aphis gossypii but also interfered with the aphid's feeding behavior and reduced its fecundity. These EOs and their active constituents have great potential as eco-friendly control products for use against Aphis gossypii . The effects of these EOs also exceed other repellents that only keep pests away from host plants. © 2024 Society of Chemical Industry.
研究领域:
植物学
·
昆虫学
·
农业科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Sustainable Chemistry and Pharmacy
·
2021
·
IF 4.508
Yimin Wei,Zhe Jiang,Qiang Wang,Ping Wang,Yuanyuan Yu
Aqueous reactive dyeing of cotton is considered to be environmentally unfriendly owing to its high consumption of water and salt as well as large discharge of wastewater. However, the industrial applications of current alternative dyeing technologies are difficult to realize due to different problems such as poor dyeing quality, environmental pollution and high cost. Herein, we developed a dyeing approach using hydrophobic deep eutectic solvent (HDES) composed of thymol from thyme leaves and menthol from Mentho haplocalvx Bing (two natural compounds with pharmacological function) to overcome the problems caused by reactive dyeing of cotton. HDES dyeing approach could achieve excellent dyeing properties of cotton by optimizing water content, pick-up and concentration of alkali solution. Dye fixation kinetics of HDES dyeing system was studied based on Lagergren pseudo-first-order and pseudo-second-order dynamics models, compared with aqueous dyeing system. The cotton fabrics dyed in Thy-Men system exhibited excellent levelness, satisfactory colorfastness and color strength without addition of salt. Furthermore, HDES can be reused for 5 cycles of dyeing and the dyed fabrics displayed consistently high color strength values. This dyeing approach provides substantial reduction in wastewater emission and consumption of freshwater and chemicals, which has considerable potential for promoting sustainable development of the textile industry .
研究领域:
纺织科学
·
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Biaobiao Yan,Xiaoting Liao,Tianlei Sun,Leilei Wu,Zhenfei Guo,Man Zhou,Yuanyuan Yu,Qiang Wang,Chaobin He,Ping Wang
Achieving multifunctional integration with comfortability and durability comparable to conventional textiles is one of the ultimate pursuits of personal protective wearables. Herein, a multi-protective textile with breathable, moisture-permeable and washable properties is reported, which is realized by cross-linking of electroactive MXene@gallic acid (MG) with the cationized cotton. Cationic modification reduces the charge repulsion between MG and cotton fibers, and promotes the deposition of conductive media on textile surface. After borax (STB) cross-linking, the obtained textile exhibits superior service stability and can be subjected to conventional washing, exhibiting antioxidant stability during natural storage. Importantly, the cross-linked textile inherits the properties of good breathability, softness and bendability as the original fabric. With the outstanding conductivity (260 mS/cm) and high absorptivity of the solar spectrum (0.920), the textile was used for Joule heating and solar heating, demonstrating their potential in the field of thermal management. Meanwhile, the textile demonstrates excellent antibacterial activity against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus , and maintained satisfactory antibacterial effect (>90 %) even after ten washing cycles. This facile strategy for fabricating personal protective textiles, based on cross-linking cotton fiber with electroactive mediators offers favorable durability, comfortability and multifunctionality, providing a scalable and sustainable approach for manufacturing multi-protective wearables.
研究领域:
材料科学
·
纺织工程
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2019
·
IF 4.191
Caiyan Wan,Peixiu Tian,Mingsheng Liu,Guangxian Zhang,Fengxiu Zhang
Cotton is the seed fiber of the Gossypium plant (from the Malvaceae family), which is one of the most important crops worldwide and is suitable for the application in clothes, furniture, and industrial fabrics areas. Combustible cotton easily triggers fire hazard. Thus, a phosphorous˗nitrogen flame retardant, ammonium salt of tris˗(hydroxymethyl)˗aminomethane˗penta(methylphosphonic acid) (ATPMPA) was synthesized to produce fire˗retardant cotton. The ATPMPA structure was characterized by nuclear magnetic resonance ( 1 H NMR, 13 C NMR, and 31 P NMR) spectroscopy. ATPMPA flame˗retardant cotton was prepared by phosphate esterification between ATPMPA and the ˗OH groups of cotton cellulose. Scanning electron microscopy verified that the surface of the treated cotton fiber was not obviously changed. The flame retardantcy of cotton was tested using the LOI, vertical burning and cone calorimetry. The results revealed that the LOIs of the control cotton and treated cotton fabrics increased from 18.4% to 40.8%, 42.4%, and 43.6% after treated with 20 wt%, 30 wt% and 40 wt% flame retardant, respectively. After 50 laundering cycles (LCs), the LOIs of the treated cotton fabrics only decreased to 26.7%, 30.8%, and 32.3%, respectively, indicating that treated cottons obtained the superior flame retardancy and excellent washing resistance. Thermogravimetry (TG) analysis showed that the charring ability of the treated cotton was markedly improved. TG-IR result of treated cotton indicated that the decomposition temperature and the amount of volatile matter produced by the flame-retardant cotton were lower than that of control cotton. The whiteness of treated cotton sustains well.
研究领域:
材料科学
·
纺织工程
✓ 已验证
产品关联
DOI
高影响因子
FUEL
·
2022
·
IF 8.035
Libo Zhang,Xiao Yang,Yequan Sheng,Qiguang Huang,Zhilin Yang,Yang Shi,Xuqiang Guo,Shengbo Ge
Conversion of agricultural and forestry waste biomass into high value-added bio-oil by mild hydrothermal method is of great significance to reduce the diesel consumption and alleviate the shortage of high-quality fuel oil supply. Most of the current research focuses on the parameter adjustment in the hydrothermal process, including temperature, time, catalyst and cosolvent, but the influence of the structure of raw materials on the hydrothermal conversion activity and the properties of hydrothermal oil is less. In this study, several typical pretreatment methods (including ball milling, alkali + ball milling, urea/NaOH and NaOH + ethanol) were used to change the structural characteristics of agricultural waste cotton stalks (CS), and the treated CS were used for hydrothermal conversion at low temperature (180–220 ℃). Taking the yield of hydrothermal bio-oil as index, the results show that various pretreatment can effectively improve the hydrothermal conversion activity of CS, improve the combustion performance of hydrothermal bio-oil and adjust the composition of hydrothermal oil. The hydrothermal bio-oil obtained by NaOH + EtOH pretreatment has the best properties, the yield is 7.41 % (wt, 220 ℃, 2 h), the calorific value is 24.16 MJ/kg, and the energy recovery is 10.98 %, which is higher than untreated CS bio-oil (with yield of 3.90 wt% at 220 ℃ and 2 h, calorific value is 23.32 MJ/kg and energy recovery of 10.98 %). The research will strengthen the role of lignocellulosic raw material structure in the hydrothermal process, which will play an important role in promoting the industrialization process of hydrothermal technology in the field of biomass, especially considering the optimization of operating parameters of various raw materials in the future industrialization.
研究领域:
能源生物学
·
生物质能工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Lei Wang,Beibei Xie,Hanchang Hu,Gaoxiang Bai,Zhenpei He,Yi Huang,Lijun Liu,Chen Meng
Limited research exists on how the structure of quaternary ammonium salt (QAS) affects the electrostatic attraction and hydroxyl reactivity of cationic cotton, which strongly affects reactive dye adsorption, diffusion, and fixation. Thus, in our work, the effects of QAS structure on the electrostatic attraction, hydroxyl reactivity, and dyeing properties were investigated. The intensity at 402.5 eV (-N + (CH 3 ) 3 ) in the XPS rose from 34 % to 70 % as the QAS alkyl chain length increased from 4 to 18 carbon atoms, signifying an enhancement of the positive charge and electrostatic attraction between reactive dye and QAS modified cotton. However, molecular dynamic (MD) simulations of the QAS-modified cotton with octadecyl chains revealed that the reactive dye demonstrated slower molecular mobility compared to the untreated cotton. This is not conducive to the diffusion and fixation of reactive dyes. The QAS-modified cotton with hexyl chains not only alters the activity of hydroxyl at the 6th but also generates additional hydroxyl at the β-position that contributes to enhancing the improvement of fixation through Gaussian simulations. Therefore, cationic cotton treated with 60 g/L of (3-chloro-2-hydroxypropyl)-dimethyl-octadecylazanium chloride (CT-8) exhibits superior dye uptake levels (91.84 %), K/S values (13.10), and dye fixation percent (88.38 %).
研究领域:
材料科学
·
纺织工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Zhaoying Li,Langqi Shi,Daokuan Liang,Feixing Li,Lianghuan Wei,Weizun Li,Xianghao Zha
The quality of bio-oil produced from fast pyrolysis of lignocellulosic biomass needs urgent upgrading due to its undesirable characteristics. In this study, HZSM-5 modified with different alkali solutions is used to catalytic fast co-pyrolysis of cotton stalk and polypropylene, investigating pyrolysis temperatures, catalysts modified with different alkali solutions, the cotton stalk (CS) to polypropylene (PP) ratio, and the feedstock to catalyst ratio. Thermogravimetric experiments revealed that PP undergoes rapid decomposition between 408 °C and 465 °C, during which a substantial amount of hydrogen free radicals is released. These radicals subsequently react with oxygen-containing compounds emitted by carbonaceous substances CS, thereby facilitating weight loss and minimizing coke formation. The FTIR results also indicate that the presence of PP significantly increases the transmittance of O-H groups at 3600–3000 cm −1 and C-O groups at 1290–900 cm −1 compared to CS. The TPAOH-modified HZSM-5 possesses a mesoporous structure and porous channels, facilitating the completion of deoxygenation of pyrolysis vapors at the acid sites. CFP of CS over HZSM-5 modified TPAOH (1.5 mol/L) at 600 °C is carried out, resulting in the highest hydrocarbon content in the bio-oil reaching 63.3 %. Concurrently, the BTEX concentrations attain their maximum values of 6.5 %, 12.9 %, 3.4 %, and 12.6 %. In addition to the hydrocarbon pool mechanism, the Diels-Alder reaction between furan and olefin is a crucial synergistic effect for generating aromatics. Upon the addition of PP in a 1:1 ratio, the contents of BTEXs attain maximum values of 8.1 %, 15.5 %, 2.3 %, and 15.5 %. Response surface methodology (RSM) indicates that the organic alkali concentration used for catalyst modification is the most significant factor influencing aromatics generation. Overall, this study aims to improve bio-oil quality and detail the reaction mechanism.
研究领域:
能源与燃料
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2023
·Vol. 332
·期 6
·2149-2158
·
IF 1.6
He Yizhou,Wang Yazhou,Cai Chengkun,Yang Guolin,Zhou Li,Ran Gang,Chen Tao,Zhu Wenkun
Microbial fermentation pretreatment is an effective strategy to solve the problem of low uranium adsorption capacity of traditional biochar materials by introducing some porous structures and special functional groups in the fermentation process. Here, five different microorganisms ( Bacillus licheniformis , Aspergillus oryzae , Lactobacillus acidophilus , Bacillus subtilis, and Saccharomyces cerevisiae ) were selected to pretreated cotton stalk biochar to find the most suitable microorganism to increase surface area and effective functional groups. Cotton stalk biochar fermented by Aspergillus oryzae has a highest specific surface area and more functional groups than other groups. U(VI) adsorption efficacy of five fermentation biochars and blank control was tested for different contact times and initial concentrations of U(VI). Cotton stalk biochar fermented by Aspergillus oryzae had the best uranium adsorption performance with an adsorption capacity of 100.31 mg/g. Mechanism analysis showed that the adsorption of U(VI) on cotton stalk biochar fermented by Aspergillus oryzae was mainly attributed to the ion exchange with Ca 2+ and the complexation with phosphate groups. Based on the above analysis, cotton stalk biochar fermented by Aspergillus oryzae possessed the potential to be applied for removing U(VI) from wastewater.
研究领域:
环境科学
·
生物技术
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Analytical Chemistry
·
2019
·
IF 1.682
Mingbo Ma,Pirah Ayaz,Wanhui Jin,Munir Hussain,Wenlong Zhou
Defoliants carried by cotton fiber could harm production workers and consumers through respiratory and dermal exposure. This study was carried out to evaluate the dissipation behavior of four commonly used defoliants tribufos, diuron, thidiazuron, and ethephon in cotton fiber during field stage and also in cotton scouring using liquid chromatography and gas chromatography. Field trials showed that although all the defoliants dissipated fast, however, the fiber from the tribufos and ethephon applied field had considerable potential to exceed the maximum residue limit when the fiber was harvested at common intervals after application of defoliants. The defoliant residues could be removed completely from the defoliant-carrying cotton textiles during alkaline scouring. The results indicated that attention should be paid to the risk of occupational exposure to these defoliants rather than consumer exposure. Fiber harvest on the tribufos and ethephon applied fields is recommended after a 1-week delay in order to reduce the residues to an acceptable level.
研究领域:
农业科学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
FIBERS AND POLYMERS
·
2021
·Vol. 22
·期 4
·936-941
·
IF 2.153
Chen Xin,Guo Junkang,Ren Limei,Ren Shenyong,Shen Baojian,Guo Qiaoxia
The flame-retardant finishing of cotton with pentaerythritol phosphate and small molecule organic amine, such as diethylenetriamine, triethylenetetramine, diethanolamine, or isopropanolamine, was studied. The mechanical and flame-retardant properties and thermal stability of cotton fabric before and after flame-retardant finishing were investigated. Results revealed that the longitudinal and latitudinal breaking strength increased. The limiting oxygen index increased from 18.7 % to 37.9–39.1 %. Vertical flame burning time and afterglow time decreased from 35.1 and 8.4 s, respectively, to 0 s. The damage length decreased from 30 cm to 7.1–8.4 cm. At 700 °C, the residual carbon increased from 17.69 % to 41.48–41.56 %. The experimental results show that the flame-retardant system has good flame retardant and carbonization effects on cotton and good foaming property for combustion. The experimental operation is simple, rapid, and has broad market prospects.
研究领域:
材料科学
·
纺织工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）