JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
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2024
·Vol. 39
·期 4
·1053-1060
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IF 1.3
Wu Zhengsen,Huang Biwu,Liu Yuansheng,Shen Han
The reactive diluent prepared by siloxane modified Trimethylene oxide can improve the performance of the UV curing system. Therefore, 1,7-bis [(3-ethyl-3-methoxyoxacylobutane) propyl] octadecylosiloxane (BEMOPOMTS) was synthesized from diethyl carbonate, trimethylopropanes, allyl bromide, and 1,1,3,3,5,5,7,7-octadecylosiloxane as the main raw materials. BEMOPOMTS can be used as reactive diluents in the field of cationic UV curing. It has good thermal stability, and the addition of BEMOPOMTS significantly improves the tensile strength and elongation at break of epoxy resin. Compared with the pure epoxy resin, adding 20% BEMOPOMTS increased the elastic modulus by 25% to 677 MPa.
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Nature Communications
·
2024
·Vol. 15
·期 1
·1-8
·
IF 14.7
Xing Xing,Wu Luyan,Zhang Yuchen,Pan Jiahao,Ishigaki Yusuke,Xie Huaqing,Suzuki Takanori,Ye Deju,Zhang Jianhua,Zhang Weihua,Lu Zhenda
Early disease diagnosis hinges on the sensitive detection of signaling molecules. Among these, hydrogen sulfide (H 2 S) has emerged as a critical player in cardiovascular and nervous system signaling. On-chip immunoassays, particularly nanoarray-based interfacial detection, offer promising avenues for ultra-sensitive analysis due to their confined reaction volumes and precise signal localization. Beyond the DNA or protein biomolecules array, this work presents a promising hybrid small molecule nano-array for H 2 S detection, using the power of dual molecules: a dye for fluorescence emission and a quencher with specific H 2 S reactivity. Upon H 2 S interaction, the quenched fluorescence reignites, creating an easily detectable array of bright spots. The molecule nano-array sensor shows exceptional responses to H 2 S over 8 magnitudes of dynamic range from 1 fM to 0.1 μM, with a remarkable detection limit of 1 fM, just using a 10 μL solution. This H 2 S detection method has the potential to significantly improve bioassay platforms, and the hybrid small-molecule nano-arrays we developed could be a valuable tool for advancing signaling molecule detection.
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WATER AIR AND SOIL POLLUTION
·
2024
·Vol. 235
·期 4
·1-16
·
IF 3.8
Wang Hongyu,Xie Yi,Xiao Henglin,Li Lu,Zhang Shujia,Wang Bin,Jiang Can,Hu Xiaoling,Zhou Dao,Nan Dongyun
Ecotoxicity of diclofenac sodium (DS) even at low concentrations makes it urgent to remove DS from water. In this work, chitosan microspheres were prepared by one-step reversed-phase emulsion method, and then, polyethyleneimine (PEI) was successfully grafted to form CS/PEI composites. The CS/PEI was characterized by Fourier infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). Effects of different influencing factors like material composition, dosage, pH, co-existing anions, and humic acid were investigated, and adsorption behavior of CS/PEI was explored by model simulation analysis. Results showed that adsorption process fits well with pseudo-second-order kinetic model and Langmuir adsorption isotherm model, indicating homogeneous and monolayer adsorption nature, and maximum Langmuir adsorption capacity was 364.12 mg/g at pH 6. The reusability of CS/PEI was confirmed by cyclic adsorption-desorption experiments, and electrostatic attraction and hydrogen bonding were the main mechanism for DS uptake by CS/PEI. Therefore, CS/PEI microspheres can be regarded as an efficient and convenient adsorbent for DS removal from aqueous media. Graphical Abstract
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Journal of Inorganic and Organometallic Polymers and Materials
·
2024
·
IF 3.9
Zheng Lu,Zhu Jide,Chen Jipeng,Xu Yanlian,Jiang Lilong
The performance of silver nanoparticles (AgNPs) as highly efficient antimicrobial agents is limited by their agglomeration and instability. Environmentally friendly silver-based nanomaterials have attracted considerable attention, owing to the superior dispersion and antibacterial activity of AgNPs. In this work, polyurushiol (PUL) was used to modify an AgNPs-based material and prepare PUL-decorated AgNPs (PUL-AgNPs). The stability and dispersion of the composites varied with the reaction conditions. The PUL-AgNPs material showed higher antibacterial activity than the AgNPs, with minimum inhibitory concentration (MIC) values against E. coli and S. aureus of 3.13 mg/L ( p < 0.01) and 6.25 mg/L ( p < 0.01), respectively. PUL-AgNPs also showed inhibitory potential against three microalgae, P. tricornutum , I. zhanjiangensis , and N. closterium . The 72-h LC50 values of PUL-AgNPs for the three algae were 1.95, 1.89, and 4.07 mg/L, respectively. This study shows the promising potential of PUL-AgNPs for antibacterial and anti-microalgae applications, especially for marine antifouling. Graphical Abstract
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IRANIAN POLYMER JOURNAL
·
2024
·
IF 2.4
Shi Liang,Shen Xue,Qi Hongyun,Zhang Xiaomei,Shu Ruiwen
A novel lignin-based magnetic composite was synthesized using a facile method, with epichlorohydrin (ECH) serving as a cross-linker to bond amino-functionalized magnetic nanoparticles (AMNP), polyethyleneimine (PEI), and sodium lignosulfonate (LS). The synthesized composite (AMNP/LS-PEI) was subjected to characterization through multiple analytical techniques, namely FTIR, XRD, BET, TG, VSM, XPS, FE-SEM, EDS, HRTEM, and TEM. Following the synthesis, a thorough investigation was conducted into the composite’s adsorption capabilities for methylene blue (MB) and methyl orange (MO) dyes through batch adsorption, taking into account pivotal factors, including pH, contact time, solution concentration, and temperature. The experimental data suggested that the adsorption of MO and MB onto AMNP/LS-PEI was in good accordance with the Langmuir isotherm model. The AMNP/LS-PEI demonstrated maximum adsorption capacities ( Q max ) of 482.7 mg g −1 for MO and 375.6 mg g −1 for MB, respectively. The MB and MO-adsorption kinetics onto AMNP/LS-PEI closely fit the pseudo-second-order model. Furthermore, the thermodynamic analysis revealed that the adsorption process of dyes onto AMNP/LS-PEI was an endothermic one. Upon six adsorption–desorption cycles, AMNP/LS-PEI demonstrated sustained adsorption capacity, achieving removal rates of 81.3% for MB and 77.1% for MO, respectively. The potential advantage for practical applications lied in its highly selective adsorption capability for mixed solutions of MB and MO. Specifically, at a pH of 4, MO was preferentially adsorbed, whereas at a pH of 8, MB was favored for adsorption. In addition, the adsorption mechanism of AMNP/LS-PEI toward dyes was explored using FTIR and XPS, and was found to be mainly ascribed to the electrostatic interaction, hydrogen bonding interaction, and cation exchange. Graphical abstract
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Nature Communications
·
2024
·Vol. 15
·期 1
·1-12
·
IF 14.7
Cui Zhanding,Liu Jinlong,Xie Chong,Wang Tao,Sun Pu,Wang Jinlong,Li Jiaoyang,Li Guoxiu,Qiu Jicheng,Zhang Ying,Li Dengliang,Sun Ying,Yin Juanbin,Li Kun,Zhao Zhixun,Yuan Hong,Bai Xingwen,Ma Xueqing,Li Pinghua,Fu Yuanfang,Bao Huifang,Li Dong,Zhang Qiang,Liu Zaixin,Cao Yimei,Zhang Jing,Lu Zengjun
Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) poses a major threat to the global swine industry, yet effective prevention and control measures remain elusive. This study unveils Nitazoxanide (NTZ) as a potent inhibitor of PRRSV both in vitro and in vivo. Through High-Throughput Screening techniques, 16 potential anti-PRRSV compounds are identified from a library comprising FDA-approved and pharmacopeial drugs. We show that NTZ displays strong efficacy in reducing PRRSV proliferation and transmission in a swine model, alleviating viremia and lung damage. Additionally, Tizoxanide (TIZ), the primary metabolite of NTZ, has been identified as a facilitator of NMRAL1 dimerization. This finding potentially sheds light on the underlying mechanism contributing to TIZ’s role in augmenting the sensitivity of the IFN-β pathway. These results indicate the promising potential of NTZ as a repurposed therapeutic agent for Porcine Reproductive and Respiratory Syndrome (PRRS). Additionally, they provide valuable insights into the antiviral mechanisms underlying NTZ’s effectiveness.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2024
·Vol. 36
·期 1
·1-8
·
IF 2.8
Shan Zhang,Xin Song,Xing Gao,Chunxiao Lu,Pei Han,Yunying Liu,Xiaowei Li,Junyan Zhang,Yong Li
The ferroelectric photovoltaic (PE-PV) effect has been extensively explored and plays a crucial role in constructing self-powered photodetectors. Ferroelectric materials have been attracting great interest in self-powered ultraviolet (UV) photodetectors due to their polarization-induced photovoltaic effect. In this paper, the ultraviolet self-powered photodetection properties of polycrystalline rare-earth Yb 1-x Ho x MnO 3 (0 ≤ x ≤ 0.08, Δx = 0.02) ferroelectric materials have been investigated. The substitution of Ho atoms for Mn atoms has a great influence on the ferroelectric polarization, and Ho doping increases the photocurrent density. The photodetectors show excellent reproducibility responsivity (R) and detectivity (D*) under illumination at 365 nm. In addition, at the light density of 1 mW/cm 2 , the responsivity and detectivity of the photodetectors are as high as 0.09 W/A and 3.359 × 10 11 Jones, respectively. These outstanding photodetection performances are due to the relatively high short-circuit current density ( J sc ). High J sc implies that more photogenerated carriers can be produced under illumination, which makes the device more sensitive to optical signals. This study presents a feasible method for improving the light-detection performance of the ultraviolet self-powered detector.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 16
·1-12
·
IF 2.8
Wang Huiya,Zhang Kaina,Zhu Yaofeng
Anion-doped induced vacancy engineering is an effective approach to modulate polarization behavior and enhance the microwave absorption property. Herein, bamboo leaf-like polyaniline-mediated nitrogen and sulfur co-doped carbon (N/S–B–C) nanoflakes were demonstrated and successfully prepared by in-situ polymerization method and carbonization process with oxygen limitation. The hollow N/S–B–C nanoflakes are decorated by orderly aligned nanorods on the surface, which effectively balances the intrinsic high conductivity and strong polarization behavior of carbon material. The substitution of heterogeneous atoms disrupts the symmetry of local microstructures, leading to the dipolar resonances and/or vibration for enhancing dielectric loss. The N/S–B–C nanoflakes possess the minimum reflection loss ( RL min ) of − 53.5 dB at 10.2 GHz and corresponding effective absorption band (EAB) of 4.5 GHz at 2.9 mm. When the thickness is only 2.22 mm, the widest EAB is up to 5.15 GHz ranging from 12.30 to 17.40 GHz. This outstanding conductivity loss and interfacial polarization relaxation as well as the improved impedance matching from hollow structure synergistically determine excellent microwave absorption performance. This study provides an effective strategy for exploring the underlying relations between conduction loss and polarization behaviors in graphitized carbon.
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Journal of Sustainable Metallurgy
·
2025
·
IF 3.2
Ma Kaihui,Wu Qinghui,Fang YunPeng,Deng Junyi,Zheng Kui,Qiu Shuxing,Chen Mao,Xu Jian
The issue of carbon emissions in the iron-making process is receiving increasing attention, and the utilization of hydrogen (H 2 )-reduced iron ore presents an appealing prospect for application. Iron oxides are the primary components involved in the iron-making process, and their reduction in H 2 holds significant research value. In this work, the softening–melting behaviors of quaternary/quinary-FeO-rich oxides in four different gases, namely 100%N 2 , 10%H 2 + 90%N 2 , 40%CO + 60%N 2 , and 10H 2 + 40%CO + 50%N 2 , above 900°C are studied by simulating the cohesive zone of blast furnace. Compared to CO, H 2 exhibits a higher reducing capacity and can achieve a faster reduction of metal iron. However, due to its inability to promote carburizing and further liquation of metal iron, iron remains in a dense metallic state within the packed bed, hindering its further reduction into iron oxide particles and consequently slowing down the shrinkage of the packed bed. Delaying the initial temperature of reaccelerated shrinkage to more than 1300°C also reduces the pressure drop within the packed bed. Its limited ability for liquid phase generation plays a positive role in influencing both the height contraction and permeability reduction of the packed bed. Furthermore, the formed spinel phase in H 2 with high melting point did not shrink until the temperature was increased to 1400°C, and a sudden increase in shrinkage rate (SR) to 0.12%/°C or above was observed. Graphical
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FIBERS AND POLYMERS
·
2024
·
IF 2.2
Wu Zhenting,Liu Ruifang,Yin Chaoyi,Ba Long
Wearable sweat sensors can noninvasively, in real time, and continuously monitor various physiological markers in sweat at the molecular level, which has a wide range of application prospects in the fields of health management, healthcare, and clinical diagnosis. However, effective sweat sampling remains a great challenge. Here, we prepared Janus fabric sweat glucose sensors, which were made by electrospinning hydrophobic polyurethane (PU) on a super hydrophilic gauze that can unidirectionally transport sweat from the skin (hydrophobic side) to the electrode (hydrophilic side). The screen-printed electrode modified by glucose oxidase has a good linear response to glucose. On-body experiments show that the sensor can detect glucose levels in sweat in real-time. The Janus fabric glucose sensor with its in situ monitoring capability and unidirectional liquid transport, and requires very low production costs, is expected to facilitate the development of smart textile sensors, opening new possibilities for exploring precise and controllable platforms for body fluid collection and sensing.
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Nature Nanotechnology
·
2024
·
IF 38.1
Wei Tingting,Pan Tiezheng,Peng Xiuping,Zhang Mengjuan,Guo Ru,Guo Yuqing,Mei Xiaohan,Zhang Yuan,Qi Ji,Dong Fang,Han Meijuan,Kong Fandi,Zou Lina,Li Dan,Zhi Dengke,Wu Weihui,Kong Deling,Zhang Song,Zhang Chunqiu
Diabetic foot ulcers often become infected, leading to treatment complications and increased risk of loss of limb. Therapeutics to manage infection and simultaneously promote healing are needed. Here we report on the development of a Janus liposozyme that treats infections and promotes wound closure and re-epithelialization. The Janus liposozyme consists of liposome-like selenoenzymes for reactive oxygen species (ROS) scavenging to restore tissue redox and immune homeostasis. The liposozymes are used to encapsulate photosensitizers for photodynamic therapy of infections. We demonstrate application in methicillin-resistant Staphylococcus aureus -infected diabetic wounds showing high ROS levels for antibacterial function from the photosensitizer and nanozyme ROS scavenging from the liposozyme to restore redox and immune homeostasis. We demonstrate that the liposozyme can directly regulate macrophage polarization and induce a pro-regenerative response. By employing single-cell RNA sequencing, T cell-deficient Rag1 −/− mice and skin-infiltrated immune cell analysis, we further reveal that IL-17-producing γδ T cells are critical for mediating M1/M2 macrophage transition. Manipulating the local immune homeostasis using the liposozyme is shown to be effective for skin wound repair and tissue regeneration in mice and mini pigs.
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MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 2
·1-12
·
IF 5.3
Xu Ning,Li Xin,Tian Chunyuan,Zhang Zhiyang,Chen Lingxin,Luan Feng,Zhuang Xuming
A lanthanide ion–based metal–organic framework (Eu-TATAB nanorods) was designed and synthesized as an effective tri-mode nanoprobe for sensitive and portable detection of ethanol content in a water–ethanol mixture. The assay was based on the responsive properties of Eu-TATAB nanorods to ethanol stimulus and their adaptive encapsulation capability towards optically active lanthanides. With the addition of ethanol to the Eu-TATAB nanorods, the structure was destroyed, resulting in a decrease in luminescence, electrochemiluminescence, and ultraviolet–visible spectrophotometric signals by perturbing energy transfer in the Eu-TATAB nanorods. According to the degree of the decrease in three luminescence intensities, the ethanol content could be quantitatively detected. Based on this, the rapid detection of alcohol content in different types of spirits and alcoholic beverages was further realized. This method is simple, convenient, and sensitive, and has good application prospects and development potential. Graphical
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