Lipids in Health and Disease
·
2024
·Vol. 23
·期 1
·1-11
·
IF 3.9
Li Jinying,Chen Yongshao,Zha Dingsheng,Wu Chunhui,Li Xiaofen,Yang Li,Cao Hui,Cai Shexing,Cai Yuebo
The accumulation of reactive oxygen species (ROS) within the bone marrow microenvironment leads to diminished osteogenic differentiation and heightened lipogenic differentiation of mesenchymal stem cells residing in the bone marrow, ultimately playing a role in the development of osteoporosis (OP). Mitigating ROS levels is a promising approach to counteracting OP. In this study, a nanozyme composed of magnesium-based zeolitic imidazolate frameworks (Mg-ZIF) was engineered to effectively scavenge ROS and alleviate OP. The results of this study indicate that Mg-ZIF exhibits significant potential in scavenging ROS and effectively promoting osteogenic differentiation of bone mesenchymal stem cells (BMSCs). Additionally, Mg-ZIF was found to inhibit the differentiation of BMSCs into adipose cells. In vivo experiments further confirmed the ability of Mg-ZIF to mitigate OP by reducing ROS levels. Mechanistically, Mg-ZIF enhances the differentiation of BMSCs into osteoblasts by upregulating lipid metabolic pathways through ROS scavenging. The results indicate that Mg-ZIF has potential as an effective therapeutic approach for the treatment of osteoporosis.
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高影响因子
Chemosensors
·
2025
·Vol. 13
·期 1
·16
·
IF 3.7
Yuanxin Wan,Shixiang Ma,Peichao Zheng,Xiande Zhao,Zhen Xing,Leizi Jiao,Hongwu Tian,Daming Dong
Ca and Mg are key constituents in surface water that are essential nutrients and vital indicators of water hardness. Rapid on-site measurement of Ca and Mg concentrations in surface water is important. However, traditional laboratory detection methods are complex and time-consuming, and on-site detection is difficult. In this study, a portable surface water detection method was developed using laser-induced breakdown spectroscopy with a miniaturized spectrometer LIBS and a liquid jet device for sample introduction. The device enables the rapid online in situ measurement of elemental concentrations in the water. The limits of detection for the rapid on-site detection of Ca and Mg in surface water were 11.58 and 2.57 mg/L, respectively. We applied this method to assess the concentrations of Ca and Mg in authentic water samples collected from rivers and ponds. The recovery rates for Ca and Mg were 90.83–101.74% and 93.43–108.74%, respectively. This method is suitable for rapid, on-site, and highly sensitive monitoring of Ca and Mg concentrations in the environment.
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Environmental Technology & Innovation
·
2024
·
IF 6.7
Liangquan Lu,Jianhong Bi,Asfandyar Shahab,Hua Zhang,Saeed Rad,Zhenyu Wu
s This study investigates the influence of key factors on the structure of prepared MgFe-LDH and their application for the removal of methyl orange (MO). The optimal synthesis were determined through Scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and partition coefficient (PC) analysis to study the morphology, crystallinity, and physicochemical properties of the resulting materials. Under the conditions of Mg 2+ /Fe 3+ =4, pH=11, and aging temperature of 80℃, well-structured Mg 4 Fe-LDH-11–80℃ was successfully synthesized with a theoretical maximum adsorption capacity of 1688.22 mg/g for MO. The adsorption process follows the Redlich-Peterson and Avrami models, displaying a exothermic characteristic. The outstanding adsorption capability is likely attributed to the synergistic effects of electrostatic attraction, hydrogen bonding, complexation reactions, and ion exchange mechanisms. Furthermore, cost analysis and recycling experiments indicate that the prepared LDH material is cost-effective and suitable for multiple reuse cycles, making it a promising candidate for treating wastewater containing MO dyes.
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CATALYSIS COMMUNICATIONS
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2018
·
IF 3.463
Xilei Lu,Lixin Wang,Xiuyang Lu
Metal organic frameworks (MOFs) are promising heterogeneous catalysts for biomass conversion to useful chemicals. In this work, four M-MOF-74s (Co, Ni, Mg, Zn) were synthesized at room temperature. Among these, Mg-MOF-74 exhibited the best catalytic activity for conversion of sugars to methyl lactate. A final product yield of methyl lactate from glucose of 35% was achieved with complete conversion of glucose at optimal reaction conditions. Catalytic performance of conversion of five sugars to methyl lactate over Mg-MOF-74 was studied, a product yield of 47% were obtained from sucrose. Mg-MOF-74 catalyst has shown to be reusable for at least three cycles.
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CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Huan Li,Jie Wang,Shoutao Lv,Chuming Chen,Haocheng Luo,Qiong Wu,Qiangyuan Zhang,Hui Zheng,Liang Zheng
The controllable Curie temperature and high magnetic permeability of NiCuZn ferrites make them promising candidates for magnetic thermal medium. However, the temperature control of existing NiCuZn ferrite materials is not accurate enough to achieve the low Curie temperature required for tumor hyperthermia. In order to further achieve the desired Curie temperature and facilitate the advancement of temperature control materials for tumor hyperthermia, Cr–Mg co-doped NiCuZn ferrite was studied. The study investigated the influence of varying concentrations of Cr 3+ on the crystal structure and magnetic properties of Mg–NiCuZn ferrites. The results of structural characterization demonstrate that Cr–Mg co-doped NiCuZn ferrites exhibit high density and uniform distribution of elements. The introduction of Cr 3+ leads to a reduction in lattice parameters and a preference for octahedral B-sites. The hysteresis loop results show that the saturation magnetization first increases and then decreases with the increase of Cr 3+ concentration. Ni 0.09 Mg 0.20 Cu 0.14 Zn 0.60 Fe 1.89 Cr 0.050 O 3.94 ferrite at 0.30 wt% of Bi 2 O 3 exhibits optimal magnetic characteristics, including a saturation magnetization of ∼36.7 emu/g, low coercivity of ∼0.07 kA/m, high permeability of ∼982.43 @1 MHz, and an appropriate Curie temperature of 45.59 °C. Such permeability and Curie temperature can be used in the body cavity perfusion hyperthermia and deep thermal therapy.
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POLYMER COMPOSITES
·
2024
·
IF 4.8
Meng Ju,Libo Tong,Miaomiao Li,Xiangjun Li,Wei Wang,Kuaishe Wang
The random arrangement of graphene oxide (GO) nanosheets within the organic coating forms a conductive network, thereby accelerating galvanic corrosion and exacerbating metal deterioration. Inspired by ordered layered structure of natural nacre, this study has successfully fabricated a biomimetic GO/epoxy coating on Mg alloy to prevent corrosion and reduce wear. By polymerizing polyaniline (PANI) and dopamine (PDA) on the GO, GO/PANI/PDA sheets with good dispersibility and impermeability are obtained. Subsequently, the bio-inspired coating (I-GO/PANI/PDA-WEP) with “nacre-like” structure is prepared via alternately spraying GO/PANI/PDA layers with epoxy layers. The anisotropic electrical conductivity of the coating is derived from the ordered distribution of GO/PANI/PDA layers to the Mg substrate, which can conduct electricity more efficiently in-plane while suppressing longitudinal electron transport. The enhanced physical barrier effect by the “nacre-like” structure and the electron suppression effect can improve anticorrosion performance. The coating reduces the corrosion rate by 6.3 × 10 5 times in comparison to Mg alloy. Moreover, this coating shows excellent wear resistance, which protects Mg alloy from friction and wear with a reduction in wear rate by approximately 96%. This bio-inspired approach offers a unique strategy for fabricating GO composite coatings with exceptional performance. Highlights The corrosion/wear resistance of I-GO/PANI/PDA has greatly improved. GO/PANI/PDA coating exhibits excellent anisotropic conductivity. Galvanic corrosion is inhibited due to the addition of GO/PANI/PDA. “Nacre-like” structure shows high labyrinth effect. The ordered orientation of GO/PANI/PDA suppresses out-plane electron transport.
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高影响因子
BIOMATERIALS
·
2025
·
IF 12.9
Xiangyu Liu,Biao Ma,Sihan Hu,Dandan Li,Chun Pan,Zhuobin Xu,Hao Chen,Yongxiang Wang,Huihui Wang
Dynamic alterations in metal ion concentrations are observed in the pathological process of spinal cord injury (SCI). Hence, strategically supplying metal ions in a phase-adapted manner is promising to facilitate injured spinal cord repair by preventing pathological damage. To achieve this, a chimeric hydrogel microsphere with Mg 2+ -crosslinked methacrylate gelatin as the "shell" and Zn 2+ -loaded poly (lactic-co-glycolic acid) (PLGA) as the "core" was designed. The chimeric microspheres allow continuous delivery of Mg 2+ or Zn 2+ at the exact required phase in SCI pathological process. Early release of Mg 2+ reduced inflammation by diminishing the secretion of proinflammatory cytokines due to changes in macrophage polarization, which further suppressed scar formation to create an ideal space for neural regeneration. The subsequently released Zn 2+ at the late phase effectively promoted neural cell proliferation and regeneration, which was accompanied by activation of mature neurons, interneurons, and motor neurons, leading to significant behavioral recovery. Thus, this study underscores the critical role of metal ions at different phases of injured spinal cord repair and describes the construction of an injectable chimeric hydrogel microsphere carrying distinct metal ions with a core-shell structure. Chimeric microspheres overcome the discrepancy between the inflammatory response and neural regeneration and are a promising therapeutic strategy for injured spinal cord repair.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Jianrong Shan,Bowen Yang,Yaqiong Su,Gunhean Chong,Luqman Chuah Abdullah,Xinhua Qi,Haixin Guo
Isomerization of glucose to fructose is a key step in achieving high value conversion of biomass. Lignin nanosphere (LN) showing hollow structure were successfully prepared using lignin oligomers as carbon precursors and self-assembly method. On this basis, Mg and Al were doped into lignin nanospheres by electrostatic and coordination interactions to obtain a heterogeneous catalyst (Mg x Al y /LN) with the coexistence of Brønsted base and Lewis acid. In this catalytic system, the synergistic effect of Al(OH) 3 and MgO as the active center of the catalyst promoted the formation of intermediates for the isomerization of glucose to fructose. DFT analysis show that Al(OH) 3 plays a greater role than MgO in promoting the isomerization of acyclic glucose to form fructose. When the Mg/Al ratio of 2:1, the yield of Mg 2 Al 1 /LN catalyzed isomerization of glucose to fructose under microwave irradiation can reach as high as 57.2 %, which could be reused for 5 times and still remain its initial activity. The activation energy was about 39.8 kJ/mol, which was lower than that of most heterogenous catalytic systems, showing good catalytic performance and potential for application.
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ADVANCED FUNCTIONAL MATERIALS
·
2024
·Vol. 34
·期 17
·2314146
·
IF 18.5
Xueting Huang,Shuangshuang Tan,Jinlong Chen,Ziwei Que,Rongrui Deng,Juncai Long,Fangyu Xiong,Guangsheng Huang,Xiaoyuan Zhou,Lingjie Li,Jingfeng Wang,Liqiang Mai,Fusheng Pan
Mg(SO 3 CF 3 ) 2 (Mg(OTf) 2 ) is a simple and cost-effective magnesium salt, which can promote the future applications of rechargeable magnesium batteries (RMBs). However, the simple Mg(OTf) 2 /ether electrolytes suffer from poor electrochemical properties due to the low solubility of Mg(OTf) 2 and the serious decomposition passivation of the [Mg 2+ -OTf − ] ion pair on Mg. Herein, the OTf − anion is successfully grafted on low-cost fluoride boronic esters (B(OC x H y F 2x-y+1 ) 3 ) to obtain the asymmetric and weak-coordination boron-center [B(OC x H y F 2x-y+1 ) 3 OTf] − anion in ether electrolytes. The -OCH 2 CF 3 (TFE) groups in B(TFE) 3 effectively realize the charge delocalization of the OTf − and B-O plane, restraining the independent decomposition of the [Mg 2+ -OTf − ] ion pair. The co-decomposition of the asymmetric [B(TFE) 3 OTf] − induces the formation of the B-containing organic/inorganic interphase, thus achieving a reversible Mg plating/stripping. After the further solubilization reaction, the obtained electrolyte exhibits a high average coulombic efficiency of 98.13% and long-term cycling stability (1000 h). Notably, the long cycling life (capacity retention of 90.2% after 600 cycles at 1 C) and high-rate capacity (43.0 mAh g −1 at 5 C) of the Mg/Mo 6 S 8 full cell demonstrate a favorable electrolyte/cathode compatibility. This work brings new insights to design the new-type and low-cost Mg-salts and high-performance electrolytes for commercial RMBs.
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高影响因子
DESALINATION
·
2025
·
IF 9.8
Shishuo Wang,Fei Guo,Xuemei Wu,Yuandong Jia,Gaohong He,Xiaobin Jiang
Lithium and its compounds are critical strategic resources with wide-ranging applications. This study developed a bipolar membrane precipitation coupled electrodialysis enrichment (BMp-EDe) process for extracting lithium from brines with an Mg/Li ratio of 20. The method is based on phase separation achieved through precipitation-coupled ion permeation and a synergistic mechanism for ion enrichment, resulting in significant process intensification. Key factors such as current density, molar ratio between diluate and base chambers, and base chamber concentration were optimized to control nucleation and prevent membrane fouling. Under conditions of current density ranging from 200 to 400 A·m −2 and a molar ratio of the diluate chamber to the base chamber between 13 and 16, the magnesium removal rate in the BMp-EDe process is found to exceed 99.90 %, with a separation factor greater than 20,000. The optimal separation factor is observed to reach 40,244, with a magnesium removal rate as 99.96 % and a lithium recovery rate as 95.32 %. With optimized operation conditions, the energy consumption of magnesium precipitation decreased from 11.89 kWh·kg −1 (Mg 2+ ) to 7.97 kWh·kg −1 (Mg 2+ ). Thus, an alternative method is presented that employs commercial bipolar membranes to achieve ultra-high magnesium‑lithium separation efficiency. Additionally, a mechanism for the continuous operation of the magnesium precipitation chamber is validated, which can effectively prevent membrane fouling.
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CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Xiu Li,Zhanheng Yan,Yanglin Shen,Wanjin Liu,Jun Ding
Oxides with the ABO 3 chemical formula play a crucial role in studying photostriction in inorganic materials. In this study, the photostrictive behavior of ilmenite-type ceramics ATiO 3 (where A = Mg, Fe, Co, Ni, and Mn) was investigated under visible light irradiation. Among the ceramics investigated, CoTiO 3 showed the highest photostriction of approximately 0.1 % under 405, 520, and 650 nm light irradiation. The photostrictive response decreased successively in FeTiO 3 , MnTiO 3 , NiTiO 3 , and MgTiO 3 . Temperature and thermal expansion tests revealed that the deformation of the ceramics caused by the photothermal effect accounted for approximately half of their photostriction. Raman and charge transfer analyses indicated that the photostriction of the ceramics depended significantly on their crystal structure. Thus, the ceramics exhibited distinct photostrictive performances. This study highlights the connection between the crystal structure and photostrictive performance of ilmenite-type ceramics, providing valuable insights into the underlying mechanism of photostriction in inorganic materials.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Bingqin Li,Liangxing Jiang,Nan Xiao,Siliang Liu,Yang Lu,Huan Zhang,Zongliang Zhang,Fangyang Liu
The existing lithium extraction technologies from salt lakes are confronted with a number of challenges, including limited applicability to brines with elevated Mg/Li ratios and low overall lithium recovery rates. Therefore, it is crucial to develop direct lithium extraction technologies tailored to pristine brines. The core challenge in lithium extraction lies in the effective separation of magnesium and lithium. However, conventional methods struggle to efficiently separate Mg 2+ and Li + in a single-stage process. Lithium superionic conductors, such as Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP), are capable of exploiting their internal lithium ion vacancies to enhance the kinetic transport disparity between Mg 2+ and Li + , thus enabling efficient separation. By employing a high-temperature diffusion technique to introduce Ag + into the interstitial sites of the LATP lattice, the local positive charge density around Ag + is increased. This raises the migration barrier for Mg 2+ within the LATP, significantly improving the Li–Mg separation performance, with a notable long-term separation coefficient exceeding 25 000. Using 2% Ag-doped LATP, battery-grade Li 2 CO 3 with a purity of 99.7% can be produced directly from pristine salt lake brine with a Mg/Li ratio of 500 through a single-stage separation process.
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