SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Qian Chen,Yunxin Xue,Yali Huang,Wenyan Guo,Mimi Wan,Jian Shen
Efficiently capturing and detecting α-synuclein (α-syn) in the bloodstream is crucial for early Parkinson's Disease (PD) diagnosis. In this study, we achieved efficient α-syn detection using electrochemical methods with Mg-based micromotors containing Fe 3 O 4 /GOx nanoparticles (NPs) and anti-α-syn antibodies. Leveraging the asymmetrical structure of the micromotors, we significantly improved the movement range of the magnesium (Mg) microsphere within the blood environment. By harnessing its enhanced motility in blood, we achieved efficient capture of α-syn in whole blood. Moreover, we developed an electrochemical detection device capable of detecting captured α-syn and amplifying the current signal through GOx's catalytic activity. This novel strategy offers potential insights for early PD detection and timely treatment.
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产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2013
·
IF 3.777
Wei Wang,Bo Jiang,Weiyi Xiong,Zhen Wang,Shuqiang Jiao
A nanoparticle Mg-doped Li 4 Ti 5 O 12 with a grain size of 20–30 nm has been successfully synthesized through a simple hydrothermal method . The first-principle simulations are employed to theoretically study the crystal structure, unit cell volume, lattice parameters , and band gaps. Galvanostatic charge–discharge tests have been carried out, using the as-prepared Li 4 Ti 5 O 12 and Mg-doped Li 4 Ti 5 O 12 as the working electrodes with a voltage range of 0.5–2.5 V vs. Li + /Li. The tests show promising results with high capacity and long term stability. When discharging at 350 mA g −1 (corresponding to a 2 C rate), the discharge capacity remains at 170 mAh g −1 over 100 cycles. As the C-rate rises to an ultrafast charge–discharge rate of 50 C, the discharge capacity can still retain at 115 mAh g −1 . The excellent electrochemical performance is due to both the nanomorphology and better conductivity after Mg doping. The results show that the Mg-doped Li 4 Ti 5 O 12 can act as a fast charge–discharge anode material for high rate lithium-ion batteries (LIBs).
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DOI
高影响因子
CATALYSIS COMMUNICATIONS
·
2016
·
IF 3.389
Xiaomin Xiang,Bin Zhang,Guoqiang Ding,Jinglei Cui,Hongyan Zheng,Yulei Zhu
The oxidation of furfural in H 2 O 2 and H 2 O 2 –Mg(OH) 2 system were systematically investigated and a rational explanation for the reaction mechanism was proposed. 2-formyloxyfuran, from selective oxidation of HC O group in furfural, was a crucial intermediate. The addition of Mg(OH) 2 suppressed the oxidation of furan ring of furfural and enhanced selectivities of 2(5H)-furanone (44.8%) and succinic acid (38.0%). FT-IR, Gaussian calculation and experimental results indicated that the process of furfural oxidation with H 2 O 2 is homogeneous, and the synergy between dissolved Mg 2 + cations and OH − ions facilitates the HOO − attacking the carbon atom of HC O other than the C C bound of furan ring.
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DOI
高影响因子
ChemElectroChem
·
2025
·
IF 3.5
Wenzheng Nan,Shaojiu Yan,Xiang Chen,Sheng Long Dai
Graphical In situ Mg seeds are generated on the lithium metal surface during cycling by incorporating MgCl 2 into the electrolyte. These Mg seeds function as thiophilic sites, which lower the Li nucleation barrier and promote uniform Li nucleation and growth. Consequently, symmetric cells constructed with the carbonate electrolyte can cycle stably for over 400 h under 1 mA cm −2 . Lithium metal, recognized for its extremely low reaction potential and ultrahigh theoretical specific capacity, is regarded as the “Holy Grail” of anode materials. However, the formation of lithium dendrites result in rapid cell capacity degradation and considerable safety issues, hindering its further advancement. In this study, in situ Mg seeds are generated on the lithium metal surface during cycling by incorporating MgCl 2 into the electrolyte. These Mg seeds function as thiophilic sites, which lower the Li nucleation barrier and promote uniform Li nucleation and growth. Consequently, symmetric cells constructed with the carbonate electrolyte can cycle stably for over 400 h at a current density of 1 mA cm −2 and a capacity of 1 mAh cm −2 . Notably, full cells using Li 4 Ti 5 O 12 as the cathode can maintain stable cycling for 300 cycles, achieving a capacity retention rate of 71.9 %. This method has demonstrated its effectiveness in mitigating lithium dendrites formation and enhancing the performance of lithium metal batteries.
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DOI
高影响因子
Advanced Composites and Hybrid Materials
·
2025
·Vol. 8
·期 1
·1-13
·
IF 21.8
Tang Yubo,Huang Sheng,Chen Wei-chih,A Garu,Linghu Xitao,Wa Qingde,Huang Shuai,Chen Jian
Zn-Mn alloys are particularly promising biodegradable implant materials, but they are plagued by poor mechanical performance. In this work, a Zn-Mn alloy with ultrahigh strength and excellent ductility was achieved through addition of trace Mg (0.1 wt%) and equal channel angular pressing (ECAP). Specifically, the ECAP processed Zn-0.5Mn-0.1 Mg alloy exhibits an ultimate tensile strength (UTS) of 428 MPa, which is highest ever achieved in Zn-Mn-based alloys, along with a good elongation (EL) of 39%. In addition, the alloy exhibits excellent antibacterial performance against Staphylococcus aureus ( S. aureus ) and Escherichia coli ( E. coli ). Trace Mg addition results in the formation of Mg 2 Zn 11 and MgZn 2 nano-precipitates in the alloy, which effectively pins grain growth during dynamic recrystallization (DRX) and postpones the inverse Hall–Petch relation. Consequently, the alloy possesses quite fine grains of an average grain size (AGS) of 0.71 μm, much smaller than that of its counterpart without Mg (AGS = 2.54 μm). The ultrahigh strength of the alloy is mainly ascribed to grain boundary strengthening and precipitation strengthening. The remarkable ductility of the alloy is related to deformation twinning suppression, pyramidal < c + a > slip activation, and low dislocation density.
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DOI
高影响因子
Inorganic Chemistry Frontiers
·
2022
·Vol. 9
·期 18
·4582-4593
·
IF 7.779
Xiaoxiao Niu,Meixiang Wang,Mengyu Zhang,Rui Cao,Zhaodi Liu,Fuying Hao,Liangquan Sheng,Huajie Xu
In this work, two novel fluorescent nanoprobes for detecting the anthrax biomarker 2,6-dipicolinic acid (DPA) have been developed based on a well-designed anionic sulphonated naphthalene derivative (L) by intercalating and coordinating Mg-Al-Ln-LDHs (Ln = Tb, Eu). The nanosensors exhibited good photostability and high reference fluorescence intensity due to a strong coordination interaction between the L and Al3+ ions of Mg-Al-Ln-LDH layers. Meanwhile, attributed to the antenna action of DPA in triggering the characteristic fluorescence emissions of Tb3+ and Eu3+ through energy transfer, the L-anchored Mg-Al-Ln-LDH nanoparticles exhibited high sensitivity and selectivity and remarkably stable ratiometric fluorescent detection of anthrax spore biomarkers in aqueous solutions, serum and actual spores. Benefiting from the intercalation and coordination of L into Mg-Al-Ln-LDHs, the obtained L@Mg-Al-Ln-LDHs can provide a reliable and stable reference signal for the fluorescence ratiometric detection of DPA with a limit of detection (LOD) of 11.6 nM and 3.56 × 103 spores per mL. More prominently, combining L@Mg-Al-Ln-LDH-based detection test strips with a smartphone demonstrates a reliable, rapid and simple method for real-time monitoring of anthrax biomarkers.
研究领域:
分析化学
·
生物医学
·
材料科学
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DOI
高影响因子
ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Aijia Wei,Wen Li,Qian Chang,Xue Bai,Rui He,Lihui Zhang,Zhenfa Liu,Yanji Wang
Mg 2+ /F − co-doped LiNi 0.5 Mn 1.5 O 4 cathode material was synthesized by a facile one-step solid-state process. The effect of Mg 2+ /F − co-doping on grain morphology, phase structure, and electrochemical properties was studied by a series of characterizations. Scanning-electron-microscopy images show that Mg 2+ /F − co-doped LiNi 0.5 Mn 1.5 O 4 (denoted LNMO-MF) particles grow larger than pure LiNi 0.5 Mn 1.5 O 4 particles. X-ray diffraction, Raman spectra , Fourier transformation infrared spectroscopy , X-ray photoelectron spectroscopy, and cyclic-voltammetry tests indicate that all samples mainly display a Fd -3m space group and more Mn 3+ ions in the LNMO-MF sample after Mg 2+ /F − co-doping, which is conducive to increasing the cationic disorder degree and enhancing the electronic conductivity of electrode material. Results show that the LNMO-MF cathode material delivers an excellent rate performance with discharge capacities of 142, 144, 140 136, 132, 124, 115, and 100 mAh g −1 at 0.2, 0.5, 1, 2, 3, 5, 7, and 10C (1C = 140 mAh g −1 ), respectively. Remarkably, LNMO-MF also shows cycling stability with a capacity retention of 86.2% at 5C after 400 cycles, which is much higher than that of pure LiNi 0.5 Mn 1.5 O 4 (67.7%). The improvement of LNMO-MF's electrochemical properties could be ascribed to the Mg 2+ /F − co-doping, delivering a more stable structure, better crystallinity , the highest Li + diffusion coefficient , and the lowest charge-transfer resistance.
研究领域:
材料科学
·
电化学
·
无机非金属材料
·
能源存储
·
锂离子电池
·
固态化学
·
功能材料
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DOI
高影响因子
Materials
·
2023
·Vol. 16
·期 18
·6248
·
IF 3.4
Yan Zhou,Dongsheng Wang,Youwen Yang
Biodegradable magnesium (Mg) and its alloys show tremendous potential as orthopedic materials. Nevertheless, the fast degradation and insufficient osteogenic properties hinder their applications. In this study, mesoporous bioglass (MBG) with an ordered branch-like structure was synthesized via a modified sol–gel method and showed a high specific surface area of 656.45 m2/g. A Mg-based composite was prepared by introducing the MBG into a Mg matrix via powder metallurgy. Degradation tests showed that the introduction of MBG increased the adsorption sites for Ca and P ions, thus promoting the formation of a Ca-P protective layer on the Mg matrix. The Ca-P protective layer became thick and dense with an increase in the immersion time, improving the protection ability of the Mg matrix, as proven by electrochemical impedance spectroscopy measurements. Meanwhile, the Mg-based composite also exhibited excellent biocompatibility and osteogenic properties. This study demonstrated the advantages of MBG in the preparation of Mg-based bone implants and validated the feasibility of improving Mg matrix corrosion resistance and enhancing osteogenesis by introducing MBG.Keywords:biodegradable magnesium alloy;corrosion resistance;in situ deposition;Mg-based composite;mesoporous bioglass;osteogenesis
研究领域:
生物医学工程
·
材料科学
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DOI
PubMed
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2021
·
IF 6.064
Manyi Huang,Guangming Lu,Jibin Pu,Yujie Qiang
Layered double hydroxides (LDHs) have been widely used as “smart” containers in the field of metal corrosion protection, and have broad industrial prospects. It is environmentally friendly and feasible to use aliphatic carboxylates and corresponding acids as substitutes for harmful corrosion inhibitors. However, previous studies rarely involved comparing the anti-corrosion mechanisms of different aliphatic acids modified on the LDH surface, and the durability of the prepared coatings also needs to be improved. In this work, MgAl-LDH laminates were grown in situ on AZ31 substrates by a hydrothermal method, and then modified by sodium laurate (SL) and sodium dodecylbenzene sulfonate (SDBS). Due to the physical barrier effect of the LDH layers, the spatial repulsion effect of the air film and the ion exchange reactions in the interlayer galleries, the functional coatings prepared exhibit smart and superior anti-corrosion performance on the magnesium substrates in 3.5 wt.% NaCl solution. Compared with LDH-SDBS-8 coating, the obtained superhydrophobic LDH-SL-8 coating shows more excellent long-term corrosion protection owing to the stronger intercalation capacity.
研究领域:
材料科学
·
腐蚀工程
·
表面化学
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DOI
高影响因子
IONICS
·
2020
·Vol. 27
·期 1
·351-360
·
IF 2.394
Wang Jia,Rui Jiayi,Yin Jingzhou,Zhou Guolang,Zhu Lili,Wang Hao,Zhao Pusu,Zhang Lili
Two-dimensional Mg-substituted cobalt hydroxides (Co x Mg y (OH) z ) with different crystal phases were synthesized via a facile reaction of magnesium (Mg) powder and cobalt aqueous solution. The phases of Co x Mg y (OH) z (amorphous phase and β phase) were controlled by adjusting the cobalt salt precursors. The obtained hybrid amorphous Co x Mg y (OH) z (a-Co x Mg y (OH) z ) showed excellent specific capacitance (662.2 F g −1 , 1 A g −1 ) than β phase Co x Mg y (OH) z (β-Co x Mg y (OH) z ) and pure Co(OH) 2 (p-Co(OH) 2 ). Additionally, the hybrid supercapacitor assembled with a-Co x Mg y (OH) z and the activated carbon showed high specific capacitance (77.8 F g −1 , 1 A g −1 ) and ultrahigh cycling stability with 99.7% retention of the first capacitance at 10 A g −1 after 5000 cycles.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2020
·
IF 7.489
Jing Xu,Zhengnan Wei,Shaokang Zhang,Xuanxuan Wang,Yihan Wang,Mengyuan He,Kejing Huang
Transition metal dichalcogenides (TMDs) have emerged as a promising material in the energy field due to their unique structural arrangement. In this work, ordered flower-like WSe 2 nanosheet was synthesized through simple one-step hydrothermal method , and its cathode application for rechargeable Mg-ion batteries was assessed. The WSe 2 cathode exhibits a high reversible capacity above 265 mAh g −1 at 50 mA g −1 , excellent cycling life of 90% initial capacitance that can be ceaselessly harvested for 100 cycles at 50 mA g −1 , and superior rate capability of 70% initial capacitance maintained even at the current density of 500 mA g −1 . This work paves the way for the application of WSe 2 cathode in Mg-ion and other rechargeable batteries.
研究领域:
材料科学
·
能量存储
·
纳米技术
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DOI
PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2022
·
IF 6.364
Yang Yang,Yifan Zhai,Huaicheng Xiang,Jie Li,Ying Tang,Liang Fang
Herein two cubic garnet ceramics Ca 3 TiBGe 3 O 12 (B = Mg, Zn) were prepared with optimal sintering temperatures of 1300 ℃ and 1200 ℃, respectively. Both ceramics exhibited promising microwave dielectric properties as well as rather low coefficient of thermal expansion ( α L ) of ε r = 11.95, Q×f = 83,000 GHz, τ f = −34.1 ppm/℃ and α L = 3.9 ppm/℃ for Ca 3 TiMgGe 3 O 12 , and ε r = 11.80, Q×f = 79,000 GHz, τ f = −42.9 ppm/℃ and α L = 4.0 ppm/℃ for Ca 3 TiZnGe 3 O 12 . Bond valence calculation reveals that Ca 2+ at the A-site is slightly compressed, Ge 4+ at C-site is rattling, and compressed Mg 2+ /Zn 2+ coexists with rattling Ti 4+ in the B-site. The large positive deviations (17.22% for Ca 3 TiMgGe 3 O 12 and 10.90% for Ca 3 TiZnGe 3 O 12 ) between the porosity corrected ε r (Corr) (12.32 and 12.41) and calculated ε r (C-M) (10.51 and 11.19) by the C-M equation were observed, which might be attributed to the combination of rattling effects in B-site and C-site. The relatively stronger rattling effect in Ca 3 TiMgGe 3 O 12 leads to a higher ε r and a τ f closer to zero than those of Ca 3 TiZnGe 3 O 12 . Besides, the Q×f values of Ca 3 TiBGe 3 O 12 (B = Mg, Zn) ceramics are mainly affected by relative density, packing fraction, and Raman mode (A 1 g ).
研究领域:
材料科学
·
物理学
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DOI
高影响因子
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