Microorganisms
·
2021
·Vol. 9
·期 11
·2258
·
IF 4.128
Xinya Zhang,Yiruo Xia,Yunlu Jia,Assaf Sukenik,Aaron Kaplan,Chanyuan Song,Guofei Dai,Fang Bai,Lin Li,Lirong Song
Mitigation of harmful cyanobacterial blooms that constitute a serious threat to water quality, particularly in eutrophic water, such as in aquaculture, is essential. Thus, in this study, we tested the efficacy of selected cyanocides towards bloom control in laboratory and outdoor mesocosm experiments. Specifically, we focused on the applicability of a group of cationic disinfectants, alkyltrimethyl ammonium (ATMA) compounds and H2O2. The biocidal effect of four ATMA cations with different alkyl chain lengths was evaluated ex situ usingMicrocystiscolonies collected from a fish pond. The most effective compound, octadecyl trimethyl ammonium (ODTMA), was further evaluated for its selectivity towards 24 cyanobacteria and eukaryotic algae species, including Cyanobacteria, Chlorophyta, Bacillariophyta, Euglenozoa and Cryptophyta. The results indicated selective inhibition of cyanobacteria by ODTMA-Br (C18) on both Chroccocales and Nostocales, but a minor effect on Chlorophytes and Bacillariophytes. The efficacy of ODTMA-Br (C18) (6.4 μM) in mitigating theMicrocystispopulation was compared with that of a single low dose of H2O2treatments (117.6 μM). ODTMA-Br (C18) suppressed the regrowth ofMicrocystisfor a longer duration than did H2O2. The results suggested that ODTMA-Br (C18) may be used as an effective cyanocide and that it is worth further evaluating this group of cationic compounds as a treatment to mitigate cyanobacterial blooms in aquaculture.
研究领域:
环境科学
·
水生生物学
✓ 已验证
DOI
高影响因子
Frontiers in Nutrition
·
2022
·
IF 6.59
Yanyu Wang,Miao Wang,Wenjuan Li,Xinyuan Wang,Weifu Kong,Weidong Huang,Jicheng Zhan,Guangli Xia,Yilin You
Introduction Indigenous yeasts are generally found in grapes, vineyards, and natural environments. Sequential inoculation and fermentation with non- Saccharomyces cerevisiae yeast (H30) and Saccharomyces cerevisiae (YT13) also improve the flavor of wine. Methods This study sequentially inoculated fermented Petit Manseng and natural grape juice with native H30 and YT13 selected from vineyards in Yantai, China. Results and discussion The sensory characteristics of Petit Manseng wine were evaluated by detecting the primary organic acids, phenolic acid compounds, and volatile ester compounds. The results showed that the lactic acid content of the natural wine fermented sequentially with H30 and YT13 increased by 490 μg/L compared with the control group, while the ferulic acid content was 1.4 times that of the single-yeast fermentation group. Furthermore, butyrolactone and anthocyanidin propionate were present in the mixed fermentation group, increasing the aroma complexity of Petit Manseng wine and providing high-quality yeast resources that increase the regional characteristics when producing dry white wine.
研究领域:
酿酒学
·
食品科学
·
微生物学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF POLYMERS AND THE ENVIRONMENT
·
2021
·Vol. 30
·期 4
·1344-1354
·
IF 3.667
Shen Jian,Jiang Fangyuan,Wang Nan,Ouyang Xiao–kun,Jin Mi-cong
Surface modification of cellulose nanocrystals (CNC) is essential for improving their reactivity and adsorption capacity. Oxidation, as a conventional modification method of CNC, has strong reaction conditions, which may partially destroy the structure of CNCs. Herein, we propose a mild cellulose modification method, in which diethylenetriaminepentaacetic acid (DPTA) was grafted onto CNC with an aminosilane coupling agent. To facilitate the enrichment and recovery of adsorbents, we prepared magnetic CNC before grafting DPTA, and finally obtained magnetic carboxylic functionalized CNC (MCNC-DPTA). The effects of the reaction parameters on the adsorption process were systematically studied by transmission electron microscopy, X-ray diffraction, Vibration sample magnetometry, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. Additionally, the effects of the solution pH, the initial concentration of Pb, and the adsorption time on the adsorption properties of the materials were evaluated. Furthermore, the structure, morphology, and thermal properties of the solution were systematically studied. After 6 cycle tests, the adsorption amount of Pb(II) by MCNC-DPTA was only reduced by 7%. These results show that MCNC-DPTA is an environment-friendly adsorption material with an excellent Pb(II) removal effect.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
Advanced Materials Interfaces
·
2022
·Vol. 9
·期 26
·2200611
·
IF 6.389
Zeliang Guo,Jialiang Lang,Haitian Zhang,Cheng Yang,Sen Lin,Hui Wu
Silver particles are key materials for the production of conductive inks, which are typically thermally sintered to obtain high conductivity. However, it remains a big challenge to achieve high conductivity at temperatures lower than 150 °C, for the protection of heat-sensitive components in printed electronic devices. In this study, a novel frigid synthesis strategy at subzero temperature (Celsius) to produce Ag NPs with rich, rose-like nanostructures (Ag nano-flowers) is developed. The growth mechanism of Ag nano-flowers under frigid conditions is analyzed and discussed. Due to the fine nanoscale structure of Ag nano-flowers, they exhibit low sintering temperature below 120 °C. The electrical conductivity of printed Ag nano-flower foil reaches 8.64 × 10 4 S cm −1 at 120 °C, and 1.20 × 10 5 S cm −1 at 150 °C. This study provides an attractive approach to the facile fabrication of Ag nano-flowers with high electronic conductivity sintered at low temperatures and grants new insights into nanocrystallization under low-temperature conditions.
研究领域:
材料科学
·
纳米技术
·
电子材料
·
印刷电子
✓ 已验证
DOI
高影响因子
Engineering
·
2022
·
IF 12.834
Xuan Zhang,Qi Wang,Ruiping Zou,Bo Song,Chunze Yan,Yusheng Shi,Bin Su
Three-dimensional (3D)-printed magnetic soft architectures have attracted extensive attention and research from the engineering and material fields. The force-driven shape deformation of such architectures causes a change in the magnetic field distribution, indicating the capability to convert mechanical energy to electricity. Herein, we fabricate a flexible superhydrophobic and magnetic device by integrating two kinds of 3D printing approaches. The 3D-printed magnetic device (3DMD) exhibits a long-term stable mechanoelectrical conversion capacity under consecutive water droplet dripping. The output current of the 3DMD is higher than that of records in the existing literature. Combined with Maxwell numerical simulation, the mechanoelectrical conversion mechanism of the 3DMD is investigated, further guiding regulation of the diverse parameters. Moreover, three 3DMDs are integrated to light up a commercial light-emitting diode (LED) by a stream of collected rainwater. Such a combined design incorporating energy conversion is believed to promisingly motive advances in the 3D printing field.
研究领域:
材料科学
·
工程学
✓ 已验证
DOI
高影响因子
Biomedical Materials
·
2026
·Vol. 21
·期 2
·025015
·
IF 3.9
Yan Zhu,Xinfei Zhao,Tao Hu,Bingfeng Guan
Lung cancer is a highly malignant tumor with a poor prognosis. Exploring effective diagnostic and therapeutic approaches is of paramount importance. This study aims to develop a nanomedicine delivery system with dual capabilities for drug loading and magnetic resonance imaging (MRI), investigating its targeted drug delivery function and MRI tracking capability for lung cancer. This study prepared folate-targeted albumin magnetic nanoparticles for carboplatin encapsulation (FA-CBP-BMNs), characterized them, and determined the encapsulation efficiency, drug loading capacity, and release rate. Cellular function and MRI imaging capabilities were investigated via MTT assays, inductively coupled plasma-mass spectrometer quantification, and cell capture experiments. In vivo tracking capability, antitumor effects, and biosafety were evaluated using a mouse model. The particle size of FA-CBP-BMNs was 186.37 ± 5.49 nm, with morphological analysis revealing spherical dispersion. The encapsulation efficiency and drug loading capacity were 12.25 ± 3.72% and 95.38 ± 4.19%, respectively. FA-CBP-BMNs exhibit sensitivity to the pH of the release medium, demonstrating enhanced sustained-release targeting properties in acidic environments. MRI imaging indicates that FA-CBP-BMNs improve relaxation efficiency. In vitro, they inhibit the proliferation of lung cancer cells. In vivo, they efficiently recognize and track tumor cells while exhibiting favorable antitumor effects, along with good biocompatibility and safety. This study successfully developed a multifunctional targeted sustained-release drug delivery system, FA-CBP-BMNs, integrating drug loading and MRI imaging capabilities. FA-CBP-BMNs demonstrated significant advantages in targeted therapy and diagnosis of lung cancer, opening new avenues for its treatment and diagnosis with promising clinical application value.
✓ 已验证
DOI
高影响因子
Water
·
2025
·Vol. 17
·期 2
·161
·
IF 3
Nan Xiong,Yansen Guo,Yanyan Nie,Yuqing Yao,Zhemian Ying,Wei Zhang,Renduo Liu,Xiaoling Wu,He Zhou,Limin Zhou,Ying Wang,Jian He,Long Yan
As a well-known photocatalyst, TiO2still suffers from rapid electron–hole recombination and limited visible light absorption. To overcome these challenges, the combination of graphene and TiO2has been proposed. However, traditional methods such as ball milling and hydrothermal synthesis face limitations, including high energy consumption and complex procedures. Here, we develop a simple and industrially feasible method to prepare reduced graphene oxide (rGO)-coated TiO2nanoparticles, referred to as rGO-TiO2composites. The optimized rGO-TiO2composites exhibit an enhanced photocatalytic degradation of rhodamine B (RhB) under simulated sunlight conditions, about 99.95% for 4% rGO-TiO2within 80 min. The first-order reaction rate constant (k) of 4% rGO-TiO2(0.0867 min−1) is 5.42 times higher than that of nano TiO2(0.0135 min−1). The key reactive species involved in the degradation process are identified. Additionally, the effects of pH and NaCl concentration on the degradation efficiency of rGO-TiO2are also investigated. The 4% rGO-TiO2composite exhibits an excellent photocatalytic activity within the pH range of 3.87–11.89, and the NaCl concentration does not affect its photocatalytic efficiency. After characterization, the enhanced photocatalytic activity is ascribed to the introduction of rGO and the generation of surface oxygen vacancies (OV) and Ti3+in TiO2crystals.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Computational and Mathematical Methods in Medicine
·
2022
·
IF 2.809
Yanyan Hu,Wei Yang
Objective. To evaluate the potential therapeutic effect of paeoniflorin on acute lung injury induced by severe acute pancreatitis (SAP) and to initially explore the possible protective mechanisms of paeoniflorin. Method. The SAP lung injury rat model was established by retrograde injection of 5% sodium taurocholate to the cholangiopancreatic duct. H&E staining was used to detect pathological changes in rat lung tissue. W/D ratio method, serum amylase (AMY), and lipase activity were used to assess the degree of lung injury in rats. Oxidation indicators such as LDH, MDA, and SOD in lung tissue were measured. Levels of inflammatory factors TNF-α, IL-6, and IL-10 were measured in bronchoalveolar lavage fluid (BALF). At the same time, Western blot was used to detect the expression of related proteins in the Nrf2/ARE signaling pathway. Results. In SAP rats, paeoniflorin treatment could significantly alleviate lung injury conditions such as pulmonary edema and inflammatory cell infiltration in lung tissue and reduce serum amylase and lipase activities. Paeoniflorin can reduce the content of LDH and MDA in lung tissue and increase the content of SOD. In addition, ELISA results showed that paeoniflorin could inhibit the levels of TNF-α and IL-6 in BALF and upregulate the levels of IL-10. Paeoniflorin could upregulate the expression of Nrf2/ARE signaling pathway proteins Cyt-Nrf2, HO-1, and NQO1 in lung tissue of SAP rats. Conclusion. Paeoniflorin may improve acute lung injury in rats with severe pancreatitis by inhibiting inflammation and oxidative stress response. These effects may be related to activating the Nrf2/ARE signaling pathway.
研究领域:
药理学
·
病理生理学
·
分子生物学
✓ 已验证
DOI
PubMed
高影响因子
Biology-Basel
·
2021
·Vol. 10
·期 8
·785
·
IF 5.079
Long Pan,Rong Cui,Yongxia Li,Wei Zhang,Jianwei Bai,Juewen Li,Xingyao Zhang
Simple SummaryPine wilt disease caused by the nematodeBursaphelenchus xylophiluscauses significant harm to China’s forests, but there are currently no effective prevention and control measures. Additionally, this devastating disease is currently spreading northward. We determined that third-stage dispersal juveniles ofB. xylophiluscan resist low-temperature stress by cryptobiosis, allowing these nematodes to tolerate a greater range of temperatures. These results facilitate the prediction of potential areas at risk forB. xylophilusin the mid-temperature and cold temperature zones of China.Nematodes can enter cryptobiosis by dehydration as an adaptation to low-temperature environments and recover from cryptobiosis by rehydration after environmental improvement. In this work, the survival ofBursaphelenchusxylophilusthird-stage dispersal juveniles was studied in response to low-temperature treatment. The average survival rates were 1.7% after −80 °C treatment for 30 d and 82.2% after −20 °C treatment for 30 d. The changes of water content and inorganic salt ions that occur in pine trees during winter gradually alter the osmotic pressure in the liquid environment to dehydrateB. xylophilusjuveniles, resulting in improved survival after low-temperature treatment. The survival rate at −20 °C improved to 92.1% when the juveniles entered cryptobiosis by osmotic regulation. The results of this study demonstrate thatB. xylophilusthird-stage dispersal juveniles can resist low-temperature stress through cryptobiosis, providing the theoretical basis for the identification of areas potentially vulnerable toB. xylophilusin the mid-temperature and cold temperature zones of China.
✓ 已验证
DOI
高影响因子
Remote Sensing
·
2022
·Vol. 14
·期 5
·1190
·
IF 5.349
Richard Bluhm,Gordon C. McCord
Nighttime lights are routinely used as a proxy for economic activity when official statistics are unavailable and are increasingly applied to study the effects of shocks or policy interventions at small geographic scales. The implicit assumption is that the ability of nighttime lights to pick up changes in GDP does not depend on local characteristics of the region under investigation or the scale of aggregation. This study uses panel data on regional GDP growth from six countries, and nighttime lights from the Defense Meteorological Satellite Program (DMSP) to investigate potential nonlinearities and measurement errors in the light production function. Our results for high statistical capacity countries (the United States and Germany) show that nightlights are significantly less responsive to changes in GDP at higher baseline level of GDP, higher population densities, and for agricultural GDP. We provide evidence that these nonlinearities are too large to be caused by differences in measurement errors across regions. We find similar but noisier relationships in other high-income countries (Italy and Spain) and emerging economies (Brazil and China). We also present results for different aggregation schemes and find that the overall relationship, including the nonlinearity, is stable across regions of different shapes and sizes but becomes noisier when regions become few and large. These findings have important implications for studies using nighttime lights to evaluate the economic effects of shocks or policy interventions. On average, nighttime lights pick up changes in GDP across many different levels of aggregation, down to relatively small geographies. However, the nonlinearity we document in this paper implies that some studies may fail to detect policy-relevant effects in places where lights react little to changes in economic activity or they may mistakenly attribute this heterogeneity to the treatment effect of their independent variable of interest.
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2021
·
IF 9.127
Hang Li,Mingqiang Li,Hu Zhao,Tong Li,Ziren Fang
Chloride ion battery (CIB) is considered as one of the potential objects to replace lithium ion battery because of its high discharge platform and high theoretical capacity. However, traditional CIB still has many problems because it can not solve the problem of matching the positive and negative active materials with the electrolyte. The main performance is poor cycle life, and low battery capacity, and it cannot meet the needs of real life. In our work, we first propose the application of graphite paper as cathode material and aqueous electrolyte in CIB, and reconstruct a new system of CIB. With zinc anode, the cycle life of the battery is more than 4000 times, and the cycle life of the electrolyte is more than 10,000 times under the promotion of lithium salt . At the same time, we synthesize flexible-solid-electrolyte, and first assemble flexible CIB, which broadens the application field of CIB. The breakthrough of flexible chloride ion battery changes the structure of the battery, which can be applied to the car as a part of the car shell to save the material cost. Secondly, chloride ion battery in high temperature environment do not produce safety hazards, which greatly improves the safety.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2022
·
IF 11.504
Ya-Ru Wang,Qin Yang,Ya-Nan Du,Han-Qing Chen
Food protein fibrils display superior mechanical and interfacial properties compared to the native protein. During processing, protein fibrils are stored for a long time and undergo pH shifts, which accelerate their degradation. In this study, the effects of chitosan on the morphology, structural and rheological properties of ovalbumin (OVA) fibrils after storage at pH higher than isoelectric point were studied. The results showed that OVA fibrils prepared at pH 2.0 remained stable after 7 days of storage. However, after storage at pH 8.0 for 7 days, the turbidity of OVA fibrils increased, the contour length and ThT fluorescence intensity decreased. Furthermore, OVA fibrils became stable again by interacting with chitosan via electrostatic interaction, which was confirmed by zeta potential . In addition, based on the results of Fourier transform infrared spectroscopy , sodium dodecyl sulfide polyacrylamide gel electrophoresis , and fluorescence spectra, it could be concluded that chitosan could interact with OVA fibrils at pH 8.0 during storage. Transmission electron microscope images indicated that the structure of OVA fibrils was maintained by the addition of positively charged chitosan. Finally, the viscosity and storage modulus of OVA fibrils after storage at pH 8.0 increased with the addition of chitosan. These findings implied that OVA fibrils were degraded when stored at pH above isoelectric point, but this degradation could be ameliorated by the addition of chitosan.
研究领域:
食品科学
·
蛋白质化学
·
材料科学
✓ 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）