CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Feng Luo,Zhimin Li,Jiyuan Chen,Yuanshui Liu,Linzhuang Xing,Yangxi Yan,Yue Hao
Ecologically sustainable hard type piezoelectric ceramics are highly demanded for high power transducer applications in replacing lead-based piezoelectric ceramics. In this study, MnO was proposed as acceptor dopant to modify the electric properties of 0.75BiFeO 3 -0.25BaTiO 3 piezoelectric ceramics. Results showed that MnO doping reduced the lattice distortion of rhombohedral phase and facilitated the formation of pseudo cubic phase of 0.75BiFeO 3 -0.25BaTiO 3 system. Moreover, it caused the diversity of domain morphology and reduced the domain size as well. XPS analysis indicated that Mn 2+ ions suppressed the transition from Fe 3+ ions to Fe 2+ ions and gave rise to the increase of oxygen vacancies . Accordingly, the introduction of MnO synergistically increases the d 33 , K p , and Q m and lowers the tan δ of 0.75BiFeO 3 -0.25BaTiO 3 ceramics. The abnormal enhancement in hard type properties is ascribed mainly to the increase of extrinsic contribution rather than the pinning effect arising from oxygen vacancies. Finally, based on an optimal 0.75Bi(Fe 0.985 Mn 0.015 )O 3 -0.25BaTiO 3 system, an atomizer prototype was fabricated. The remarkable atomization effect suggests a competitive potential of 0.75BF-0.25BT ceramic for transducer application.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
INTERNATIONAL IMMUNOPHARMACOLOGY
·
2025
·
IF 4.7
Longwei Yang,Wenhao Ge,Xi Lin,Ning Yu,Xiaodong Xu,Jianfa Zhang
Allergic asthma is an inflammatory airway disease in which mast cells play a key role in its pathogenesis. Riclinoctaose (Rios), an octasaccharide composed of glucose and galactose, has been reported to modulate macrophage polarization in renal ischemia-reperfusion injury. This study investigates the effects of nebulized Rios in an ovalbumin (OVA)-induced allergic asthma model. Nebulized Rios significantly reduced airway hyperresponsiveness (AHR), inflammatory cell infiltration, pulmonary fibrosis, and mucus production in OVA-treated mice. Additionally, Rios suppressed lung inflammatory cytokine production and protected against OVA-induced oxidative injury. In bronchoalveolar lavage fluid (BALF), Rios decreased the number of neutrophils and macrophages, as well as serum immunoglobulin E (IgE) and interleukin-4 (IL-4) levels. Metabolomics analysis using 1 H NMR showed significant changes in the lung metabolic profile of OVA-induced asthma mice, which were partially reversed by Rios treatment. Confocal laser microscopy (CLM) revealed that fluorescently labeled Rios specifically binds to mast cell membranes. In vitro, Rios reduced degranulation and inflammatory responses in mast cells RBL-2H3 following anti-Dinitrophenyl-Immunoglobulin E (anti-DNP-IgE) sensitization and anti-Dinitrophenyl-Bovine Serum Albumin (anti-DNP-BSA) stimulation. These results suggest that Rios has therapeutic potential for allergic asthma, likely through the modulation of mast cell degranulation and mediator release.
研究领域:
免疫学
·
呼吸病学
·
药理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FIBERS AND POLYMERS
·
2022
·Vol. 23
·期 4
·944-953
·
IF 2.347
Xu Qingbo,Ying Lili,Wang Xinyu,Zhang YanYan,Wang Peng
Cotton fabric is easy to breed bacteria due to its porous structure and easy wettability, resulting in poor quality of cotton fabric and harm to human health. In order to prepare antibacterial and antifouling cotton fabric, the present work developed a new strategy. The acryloyl chloride (AC) was covalently linked to the surface of cotton fabric by nucleophilic substitution reaction, leading the surface of fabric to have the C=C bonds. Then, the C=C bonds on the treated fabric surface were polymerized with the allyltrimethylammonium chloride (ATAC) via mist polymerization technology, thus making the poly(allyltrimethylammonium chloride) (PTAC) was grafted onto the cotton fabric via grafting through method. As a result, the finished fabric showed excellent antibacterial effect against E. coli and S. aureus , with the bacterial reduction (BR) rates were higher than 99.0 %. Moreover, even after 50 laundering cycles, the BR rates of treated fabric against E. coli and S. aureus were also remained 95.8 %, exhibiting excellent durability. The finished cotton fabric was also showed outstanding antifouling for both bacterial and protein. The antibacterial and antifouling cotton fabric prepared by mist polymerization technology and grafting through method has a great potential application in the household and consumer textiles.
研究领域:
纺织科学
·
材料科学
·
生物学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Wei Le,Wanjun Zhao,Yanli Zhu,Xin Zeng,Dazhi Liu,Qingjie Jiao
Aluminum (Al)-lithium (Li) alloys are ambitious candidates for application in energetic materials, however, the high reactivity of Al-Li compound and Li in alloys affects their thermal stability, which results in gradually lower active content and diminished performance, impeding their further application in energetics. In this study, the specific content of silicon (Si) was introduced into Al-Li alloy via the centrifugal atomization that allows in-situ assembly of Al , Li, and Si at the single particle level, thus resulting in more stable Al-Li-Si compounds instead of active Al-Li compounds and Li and enhancing their thermal stability. The results show that Al-Li-Si alloy powders are in a high degree of sphericity, which are composed of αAl and AlLiSi. Compared to Al-Li alloys, Al-Li-Si alloys initiate the oxidization at a higher temperature (∼600 ℃) since the existence of more stable Al-Li-Si compounds than Li in Al-Li alloys, which indicates a higher thermal stability. Al-Li-Si alloys also show high heat release and combustion efficiency similar to Al-Li alloys. In the meanwhile, Al-Li-Si alloy-based composites maintain almost the same combustion properties compared to Al-Li/PTFE energetics, along with prolonged combustion duration. Therefore, Al-Li-Si alloy powders are promising candidates for application in energetic materials considering their higher thermal stability and tunable combustion properties.
研究领域:
材料科学
·
能量材料
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Zaichun Sun,Bingchu Mei,Hao Zhou,Shaoyong Qin,Huijuan Zhang
High-quality (001) orientated bismuth oxobromide (BiOBr) thin films were deposited on polycrystalline Sn: In 2 O 3 -glass substrates at open-air atmospheric pressure with mist chemical vapor deposition (CVD). Generally, it is difficult to control the surface morphology and thickness for BiOBr because of the high anisotropic crystal structure and very volatile halide . In this study, the growing thickness of BiOBr thin films showed a linear correlation with deposition time. Small thickness resulted in limited absorption ability, while large thickness led to increase of electrical resistance. The surface morphology of (001) orientated BiOBr thin films can be improved obviously under the acidic environment via suppressing Bi 3+ hydrolysis. The (001) orientated BiOBr thin films that deposited by mixed solvent of DMF and 35% HNO 3 aqueous solution exhibited the highest photocurrent density with 0.33 mA cm −2 at 0.6 V vs Ag/AgCl. The intermediate thickness and continuous surface morphology effectively promote the transfer and separation of electron-hole pairs, leading to superior photoelectrochemical (PEC) performance.
研究领域:
材料科学
·
光电化学
✓ 已验证
DOI
高影响因子
CELLULOSE
·
2025
·
IF 4.8
Xu Qingbo,Zhang Jinlong,Zhang Supeng,Wu Zheng,Tao Xuchen
Adaptive moisture and thermal management cotton fabrics can maintain human physiological comfort without requiring space heating or cooling, aligning with the goals of sustainable development, carbon neutrality, and carbon peak. However, the moisture and thermal management performance and wearing comfort of cotton fabrics require further study. In this study, mist polymerization technology and the “grafting through” polymerization method were used to graft poly[2-(2-methoxyethoxy) ethoxyethyl methacrylate] (PMEO2MA) onto the inner surface of cotton fabric and poly[ N,N -dimethyl(methacryloylethyl)ammonium propane sulfonate] (PDMAPS) onto the outer surface. The reversible wetting properties of both surfaces impart the fabric with excellent moisture and thermal management capabilities. The treated fabric reduces skin temperature by approximately 5.0 °C within 8 min when worn at 31.0 °C and increases skin temperature by around 3.0 °C–4.0 °C within 8 min when worn at 9.5 °C. This fabric, capable of rapidly managing moisture and thermal conditions in a short duration, exhibits considerable potential for application in harsh and demanding environments.
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
SCIENCE OF THE TOTAL ENVIRONMENT
·
2023
·
IF 9.8
Li Lin,Sheng Zhang,Lei Dong,Yueqi Cao,Wei Zhang,Xiong Pan,Yi Li,Chi Zhang,Jingxiang Tao,Di Jia,John Crittenden
Flood discharge atomization is a prevalent hydraulics phenomenon in reservoir scheduling operations, however, its effect on the migration and transformation behavior of pollutants has not been examined. In this study, the behaviors and mechanisms of the direct photodegradation of dibutyl phthalate (DBP) in atomized water and the indirect photodegradation of DBP in the presence of ferric ions and nitrate were investigated. The results showed that the photodegradation rate of DBP was accelerated under atomization conditions by sunlight irradiation. The photodegradation efficiency of DBP in the presence of ferric ions and nitrate under atomization conditions was increased by 2.20 times and 1.82 times compared with no-atomization conditions, respectively. The quencher experiments indicated that the main active species for DBP photodegradation in the presence of ferric ions were hydroxyl radicals (·OH) and superoxide radicals (·O 2 − ) with atomization, while the main active species in the presence of nitrate were ·OH, ·O 2 − and electrons (e − ). In addition, the differences were found in the photodegradation products and pathways of DBP between with and without atomization treatment. In the presence of ferric ions, the benzene ring of DBP was opened to produce fumaric acid, while phthalic acid bis(4-hydroxybutyl) ester was produced in the presence of nitrate under atomization conditions. The results of this study provide a scientific basis for assessing the effect of water conservancy projects on the migration and transformation behaviors of pollutants, which is of great theoretical significance and scientific value.
研究领域:
环境科学
·
水污染控制
·
光化学反应
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2023
·
IF 13.6
Li Guo,Pengyu Zhao,Yikang Jia,Zifeng Wang,Min Chen,Hao Zhang,Dingxin Liu,Yong Zhang,Xiaohua Wang,Mingzhe Rong
The airborne microorganisms in the aerosols are one main transmission way of pathogenic microorganisms and therefore inactivation of microorganisms in aerosols could effectively prevent the transmission of pathogenic microorganisms to control epidemics. The mist nebulized by plasma-activated air could effectively inactivate bacteria and could be developed for the sterilization of microorganisms in aerosols. In this study, the plasma-activated nebulized mist (PANM) was applied for the inactivation of microorganisms in aerosols and efficiently inactivated the bacteria, yeast, and viruses in aerosols after 2-min treatment. The PANM treatment caused morphologic changes and damage to the bacteria cells in aerosols. The PANM could also inactivate the microorganisms attached to the surface of the treatment chamber and the bacteria attached to the skin of mice within 6-min treatment. The biosafety assays demonstrated that the PANM treatment exhibited no effects on the behavior, hematological and serum biochemical parameters of blood, and organs from the mice. This study would supply an efficient, broad-spectrum, and safe aerosol sterilization strategy based on plasma technology to prevent the transmission of airborne microorganisms.
研究领域:
生物学
·
医学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF PHARMACEUTICS
·
2012
·
IF 3.35
Yinhe Tan,Zhiwen Yang,Xin Pan,Meiwan Chen,Min Feng,Lili Wang,Hu Liu,Ziyun Shan,Chuanbin Wu
The objective of this study was to investigate the stability and aerosolization of pressurized metered dose inhalers (pMDIs) containing thymopentin nanoparticles . Thymopentin nanoparticles, fabricated by a bottom-up process, were suspended in hydrofluoroalkane (HFA) 134a together with cineole and/or n -heptane to produce pMDI formulations. The stability study of the pMDIs obtained was carried out at ambient temperature for 6 months. The amount of thymopentin and the aerosolization properties of pMDIs were determined using high-performance liquid chromatography (HPLC) and a twin-stage impinger (TSI), respectively. Based on the results, thymopentin nanoparticles were readily suspended in HFA 134a with the aid of cineole and/or n -heptane to form physically stable pMDI formulations, and more than 98% of the labeled amount of thymopentin and over 50% of the fine particle fraction (FPF) of the pMDIs were achieved. During storage, it was found that for all pMDIs more than 97% of the labeled amount of thymopentin and FPF greater than 47% were achieved. Moreover, the size of thymopentin nanoparticles in propellant containing cineole and n -heptane showed little change. It is, therefore, concluded that the pMDIs comprising thymopentin nanoparticles developed in this study were stable and suitable for inhalation therapy for systemic action.
研究领域:
药剂学
·
药物递送系统
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2019
·Vol. 26
·期 22
·22351-22361
·
IF 2.914
Wei Jiaqi,Gu Junjie,Guo Junheng,Li Wei,Wang Chenglong,Zhang Jinli
A new method was developed for denitrification and desulfurization using hydrogen peroxide with the aid of an ultrasonic nebulizer to obtain high removal efficiency of NOx and SO 2 . Comparing with the atomizing nozzles having the aperture size of 0.01~0.02 mm, the droplets generated using the ultrasonic nebulizer show the smallest d 50 value of 7.2 μm, with 72% possessing the size less than 10 μm. Based on the numerical simulation of the vaporization rate of droplets, it is indicated that the droplets with the size of 7.2 μm can be vaporized totally at very short residence time (0.11 s) under 130 °C. Effects of influence factors including the reaction temperature, the initial H 2 O 2 concentration, pH value, and the flue gas flow rate were studied on the removal efficiencies of NO and SO 2 . Using the in-series double-oxidation subsystems with H 2 O 2 concentration of 6 wt%, pH 5.0, and the reaction temperature of 130 °C, the removal efficiencies of SO 2 and NO are respectively 100% and 89.3% at the short residence time of 1.8 s, and the removal efficiency of NO can be increased to 100% as the residence time is longer than 3.7 s. It is confirmed that the ultrasonically atomized H 2 O 2 can indeed enhance the removal efficiencies of NO and SO 2 at the optimal temperature, owing to the fast vaporization rate of fine droplets as well as the formation of more active radicals to be captured by NO and SO 2 simultaneously. The results here provide a promising route to remove effectively the emissions of NO and SO 2 simultaneously.
Graphical abstract
研究领域:
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CULTURAL HERITAGE
·
2024
·
IF 3.5
Bei He,He Zhao,Weiying Li,Ling Meng,Chuanfu Liu,Huiming Fan,Junli Ren,Huiping Xing,Pujun Jin
Deacidification is a necessary and urgent means of protecting acidified paper documents. However, the contradiction between deacidification efficiency and uniformity in existing aqueous or organic phase deacidification methods has not been resolved yet, which is mainly attributed to the differences in capillary action of paper on solvents with different polarities. In this work, a strategy of two-phase deacidification was proposed to achieve efficient and uniform deacidification and long-lasting aging resistance. Impregnation of nano magnesium oxide organic dispersion of deacidified paper achieved efficient batch deacidification and sufficient alkali reserve. Using ultrasonic atomization of saturated calcium hydroxide aqueous solution, the penetration of alkaline substances into paper promoted uniform deacidification based on strong capillary action. Meanwhile, microstructural reinforcement of paper fibers was achieved based on the multiple interactions. This method can endow the treated paper with better thermal stability and long-lasting aging resistance. After artificial accelerated aging for 30 d, the treated paper samples still maintained the highest tensile index (18.46 Nm/g), folding endurance (8.5 times), tear index (3.95 mN·m 2 /g) and displayed negligible chromatic aberration (∆ E = 2.46 ± 0.21). This method greatly extends the lifespan of acidified paper, which has significant value for the protection of paper documents.
研究领域:
文物保护
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Electronic Materials
·
2025
·
IF 4.7
Li Xiao,Xiuxian Li,Zhukang Zhang,Yue Long,Gang Wang,Hengxiang Gong
Integrating wide band gap semiconductor materials with silicon (Si) to create heterojunctions is an effective strategy for enhancing the ultraviolet (UV) sensitivity of optoelectronic devices. However, epitaxially growing high-quality wide band gap films on Si substrates at low temperatures without compromising the properties of Si remains challenging. In this study, we introduce a low-cost mist chemical vapor deposition (CVD) technique to deposit Cs3Cu2I5 perovskite films and fabricate a simple-structured Cs3Cu2I5/n-Si planar heterojunction. This technique enables an orderly deposition and rapid crystallization process, distinct from traditional solution-based methods. Herein, we report for the first time a compact, thick Cs3Cu2I5 film with an average grain size of 5.27 μm and a thickness of approximately 2.8 μm exhibiting orientated growth along the (303) plane. Furthermore, the simply constructed Cs3Cu2I5/n-Si photodiode exhibited a maximum photoresponsivity of 186 mA W–1 and a specific detectivity of 2.5 × 1012 Jones under 278 nm illumination. The on–off cycling tests demonstrated excellent operational stability, with unpackaged devices retaining 90% of their initial photocurrent after two months of storage under ambient conditions.
研究领域:
材料科学
·
光电子学
✓ 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）