TALANTA
·
2023
·
IF 6.1
Yiqian Kong,Zongyi Li,Qi Liu,Juncheng Song,Yinghua Zhu,Jinping Lin,Lili Song,Xiangyang Li
In this work, V 2 C Mxene nano-enzyme materials (V 2 C MNs) with excellent peroxidase-like activity and fluorescence quenching performance were prepared, and it was modified using 6-carboxyfluorescein-labelled aptamers (ssDNA-FAM) to construct a novel dual-mode sensor V 2 C@ssDNA-FAM, with detection limits of 0.0477 ng mL −1 and 0.2789 ng mL −1 of fluorescence (linear range of 0.1–550 ng mL −1 ) and colorimetric (linear range of 1–1000 ng mL −1 ) modes, respectively. Meanwhile, an ANN intelligent detection platform has been constructed, which could automatically track and analyze the fluorescence and colorimetric signal of the detection system through machine learning and immediately obtain the AFB 1 concentration, and the detection limits of the fluorescence (linear range of 0.1–500 ng mL −1 ) and colorimetric (linear range of 1–800 ng mL −1 ) channels of it were 0.0905 ng mL −1 and 0.6845 ng mL −1 , respectively. The recovery rates of fluorescence, colorimetric sensing detection and ANN-assisted fluorescence and colorimetric sensing detection of real samples ranged from 95.40% to 101.76%. The method constructed in this work was superior to most existing literature reports and had great potential for application in the field of food quality testing.
研究领域:
食品安全检测
·
生物传感
·
人工智能辅助分析
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产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Kaiyun Zhang,Wenxiu He,Fanyan Zeng,Yuhe Huang,Taiyang Wang,Meilan Xie,Dui Ma,Yang Pan
Addressing the kinetic mismatch and structural instability challenges in sodium-ion hybrid capacitor (SIHC) anodes, this study develops an N-doped carbon composite integrating amorphous Mn–S with adjacent low-nucleated MnS (a–Mn-S/MnSLN@NC). This architecture synergistically enhances mechanical stress buffering and charge transfer kinetics via the isotropic dynamic bonding of a–Mn-S and the high-affinity sites of MnSLN. The 3D C–S–Mn covalent bonds in the a–Mn-S stabilize MnSLN through atomic anchoring, homogenizing volume strains and exposing uncoordinated S active sites to elevate Na+ adsorption density. Theoretical calculations reveal that the proximity-induced d–p orbital hybridization reconstructs the electron-donor characteristics of S sites, creating an asymmetric electronic configuration. The electron-rich a–Mn-S serves as efficient Na+ trapping centers, while the electron-deficient MnSLN facilitates rapid electron transfer. This configuration endows the composite with superior Na+ adsorption energy and charge transfer efficiency over pure MnS. Consequently, the a–Mn-S/MnSLN@NC anode delivers a high reversible capacity of 597 mAh g–1 at 0.1 A g–1 and retains 90.5% capacity after 3500 cycles at 10.0 A g–1. The assembled SIHCs achieve exceptional energy/power densities (186 Wh kg–1 and 9576 W kg–1). This work elucidates the mechanism of adjacent asymmetric configurations for enhanced Na+ storage, offering a novel strategy for designing high-performance SIHCs.
研究领域:
储能与转换
·
材料科学
·
电化学
·
纳米材料
·
电池技术
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产品关联
DOI
PubMed
高影响因子
ELECTROANALYSIS
·
2025
·Vol. 37
·期 12
·e70086
·
IF 2.3
Li Zhang,Qian Zhao,Xinman Tu,Xinjie Yang,Xinding Lv,Shuiying Xiong
The abuse of trichlorfon leading a threat to human health through the food chain, it is great important to establish a selective and sensitive determination method for trichlorfon residual. Herein, a functional molecularly imprinted electrochemical sensor was constructed using CuS/MnS heterojunction and multiwalled carbon nanotubes (MWCNTs). CuS/MnS possesses a highly efficient electron transfer capacity via ion exchange interactions at a given potential, resulting in a favorable signal response. Meanwhile, the signal transmitting efficiency was further promoted by the large specific surface area of MWCNTs. In the preparation of electrochemical sensor, the CuS/MnS was modified on the electrode surface with MWCNTs, and covered by molecularly imprinted layer. The sensor was first incubated into an indicator solution containing potassium ferricyanide, producing a distinct initial signal. Once the target was present, it was identified and captured by the imprinted cavity, which blocked the electron pathway, and the potassium ferricyanide signal subsequently reduced with a measurable level. Under the optimized conditions, the two-stage linear ranges were 1.0–10 and 10–100 nM, with a detection limit of 0.37 nM. In contrast to other complex electrochemical beacons, this work induced heterojunctions and MWCNTs to obtain a satisfactory result via synergistic effect. Furthermore, the recovery rates of 93.70%–105.18% in the real sample assays suggest a prospective application of the proposed sensor in monitoring of pesticide residuals.
研究领域:
环境监测
·
分析化学
·
电化学传感器
·
纳米材料
·
食品安全
✓ 已验证
产品关联
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2022
·
IF 10.753
Xiaoping Liao,Jinru Cao,Meng Lei,Caixiang Zhang,Lisong Hu
Manganese sulfide ( MnS ) has unique reactive abilities and can affect the fate and toxicity of contaminants in the natural environment, specifically sulfidic sediments that undergo biogeochemical changes due to natural and artificial processes. However, the effect of oxidization induced by the oxygenation of MnS on organic contaminants remains poorly understood. Herein, we revealed that the hydroxyl radical ( HO ·) was the dominant reactive oxidant for the rapid degradation of the assessed hydrophobic organic contaminants (including azo dye, nitroaromatic compounds, pesticide, and an endocrine disrupt chemical) during the oxygenation of MnS based on the competitive dynamic experiments, quenching experiments and electron spin resonance (ESR) methods. The removal rates of the assessed organic contaminants were significantly dependent on MnS dosage and co-solutes, including sediment humic acid , metal ions ( Mn 2+ and Fe 3+ ), and inorganic anions ( PO 4 3− and Cl − ). HO · scavenging by sulfide and its oxidation products (e.g., elemental sulfur), rather than dissolved Mn 2+ , was responsible for the low utilization efficiency of HO · for the assessed contaminants. The contribution of the manganese oxide ( MnO 2 ) generated by the oxygenation of MnS to the examined degradation of contaminants could be neglected. Considered collectively, the reaction between H 2 O 2 and MnO 2 generated superoxide radicals ( O 2 − ·) which dominated the generation of HO · in an oxic MnS suspension. The results suggest that the impact of oxidization induced by the oxygenation of MnS on environmental contaminants should be of concern in both natural and engineered systems.
研究领域:
环境科学
·
化学
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DOI
PubMed
高影响因子
NANOTECHNOLOGY
·
2021
·Vol. 32
·期 50
·505610
·
IF 3.874
Liyun Qin,Yan Lu,Qinliang Li,Zhendong Wang,Jianyu Wang,Binbing Tang,Wenda Zhou,Cailei Yuan,Qisheng Wang,Li Wang
The combination of two-dimensional (2D) materials with non-2D materials (quantum dots, nanowires and bulk materials), i.e. mixed-dimensional van der Waals (md-vdW) heterostructures endow 2D materials with remarkable electronics properties. However, it remains a big challenge to synthesize md-vdW heterostructures because of the difference of crystal symmetry between 2D and non-2D materials. Meanwhile, it is difficult to initiate the nucleation due to the lack of chemical active sites on chemical inert surfaces of 2D materials. Herein, we design a general chemical vapor deposition method for synthesizing a broad class of md-vdW heterostructures with well-aligned hexagonal symmetry including MoS2/FeS, MoS2/CoS, MoS2/MnS, MoS2/ZnS, Mo(SxSe1–x)2/ZnSxSe1–x, Mo(SxSe1–x)2/CdSxSe1–x. Combining with DFT calculation, we find that the hexagonal symmetry and the centered clusters of MoS2 and Mo(SxSe1–x)2 nanoflakes are two crucial factors to launch the hexagonally oriented growth and nucleation of non-2D materials on 2D materials. Our discovery opens an opportunity for the versatile hetero-integration of 2D materials and allows systematic investigation of physical properties in a wide variety of md-vdW heterostructures.
研究领域:
材料科学
·
纳米技术
·
化学
·
物理学
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DOI
高影响因子
RARE METALS
·
2026
·Vol. 45
·期 9
·e70493
·
IF 12.1
Pei Li,Wei Quan,Weikang Ling,Yushun Han,Jimei Li,Guanlong Wang,Jiliang Ma,Runcang Sun
en This link goes to a English section zh This link goes to a Chinese section Photocatalytic H 2 evolution coupled with biomass upgrading offers a sustainable route for clean energy conversion and high-value chemical synthesis. Herein, an in situ grown S-scheme MnS/MnB-MBene heterojunction (denoted as SM x ) was fabricated via alkaline etching of Mn 2 AlB 2 followed by controlled sulfurization. This strategy effectively removes the Al layer, exposes abundant active sites, and simultaneously establishes an intimate S-scheme heterojunction that promotes spatial charge separation and boosts redox kinetics. The optimized SM6 catalyst achieves a remarkable H 2 evolution rate of 1704.81 μmol g −1 h −1 , along with 99.16% conversion of 5-HMF and 79.42% selectivity toward 5-hydroxymethyl-2-furoic acid (HMFCA). These values correspond to 15.97-fold and 7.7-fold enhancements in H 2 evolution compared to pristine Mn 2 AlB 2 and MnB-MBene, respectively. The spatially separated redox sites—MnB-MBene as oxidation sites and MnS as reduction sites—enable efficient, site-specific catalytic reactions, significantly enhancing overall performance. This study provides a rational design strategy for MBene-based heterojunctions and offers insights into advancing biomass photorefinery coupled with solar fuel production. 摘要 en This link goes to a English section zh This link goes to a Chinese section 光催化析氢耦合生物质高值化转化, 为清洁能源转化与高附加值化学品合成开辟了一条可持续路径。本文通过对Mn 2 AlB 2 进行碱刻蚀并结合可控硫化处理, 原位制备出S型异质结MnS/MnB-MBene复合材料 (记作SM x )。该制备策略可有效去除铝原子层, 暴露出大量活性位点, 同时构建紧密的S型异质结, 进而促进载流子空间分离、加快氧化还原反应动力学过程。经优化的SM6催化剂表现出优异性能:光催化析氢速率达1704.81 μmol g −1 h −1 , 5-羟甲基糠醛(5-HMF)转化率为99.16%, 对5-羟甲基糠醛酸(HMFCA)的选择性达79.42%。相较于纯Mn 2 AlB 2 与MnB-MBene, 其析氢活性分别提升15.97倍和7.7倍。体系中氧化还原位点实现空间分离:MnB-MBene作为氧化活性位点, MnS作为还原活性位点, 可实现位点专一的高效催化反应, 大幅提升整体催化性能。本研究为基于MBene的异质结催化剂提供了合理的设计思路, 也为光驱动生物质精炼耦合太阳能燃料制备领域的发展提供了理论参考。
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Wenxue Zhao,Aihua Yan,Zigao Su,Fei Huang,Jixu Zhang,Ye Gao,Huaqi Yuan,Bolei Hui,Heng Wang
ZnIn 2 S 4 is a promising and typical semiconductor for photocatalytic water splitting into hydrogen production. However, the low charge-carrier utilization restricts its hydrogen evolution performance and practical application. In this work, a synergistic strategy of sulfur vacancy (S v ), internal electric field (IEF) and Mo-S bond was utilized for improving the charge-carrier utilization of MoS 2 /S v -MnS/ZnIn 2 S 4 composites. In particular, Z-scheme S v -MnS/ZnIn 2 S 4 heterojunction not only tackled the charge-carrier recombination problem but also improved the redox capability. Meanwhile, Schottky-type MoS 2 /S v -MnS contact further promoted the charge transfer through Mo-S bond “bridge”, accelerated the surface hydrogen reduction reaction kinetics, and thus boosted the charge-carrier utilization. As a result, the optimal MoS 2 /S v -MnS/ZnIn 2 S 4 catalysts could expeditiously produce 1.75 mL of hydrogen production within 3 h, and achieve a photocatalytic hydrogen evolution rate of 13.02 mmol g -1 h -1 . This work provides an ingenious method to synthesize ZnIn 2 S 4 -based photocatalysts with highly-efficient charge-carrier utilization.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
高影响因子
ChemElectroChem
·
2022
·Vol. 9
·期 15
·e202200256
·
IF 4.782
Rongrong Miao,Songheng Xie,Xiang Lin,Tao Zhang,Jingang Song,Xiangxuan Huang
Graphical Facile and scalable route to MnS@NSC composite : A sub-micro MnS@NSC composite was synthesized facilely by employing low-cost commercial MnS as raw material and in-situ compositing with N,S-codoped carbon, which exhibit excellent electrochemical performance in half/full lithium-ion cells. Nanostructured manganese sulfide (MnS) has been verified to be effective to address the issues of MnS as next-generation anode material in high energy lithium-ion batteries (LIBs). The scale-up fabrication, however, is still challenged by the multistep and rigid processes of synthesizing MnS nanoparticles. Herein, by using micro-sized MnS as low-cost MnS source, we present a facile, cost-effective and scalable strategy to prepare a sub-micrometer sized MnS@NSC composite, in which MnS nanoparticles are encapsulated into N,S-codoped carbon matrix (NSC) deriving from polyacrylonitrile (PAN). The NSC matrix combined with homogeneously distributed MnS nanoparticles crushed from micro-MnS provide fast access of lithium ion/electron and robust structure, leading to remarkable cycling stability (551.6 mAh g −1 at 0.5 A g −1 even after 400 cycles) and desirable rate capability (624 mAh g −1 at 0.1 A g −1 and around 300 mAh g −1 at 2 A g −1 ). Particularly, the assembled LIB full cell by coupling the anode with LiFePO 4 (LFP) cathode presents an encouragingly cycling retention of 96 % after 100 cycles. This work provides a new possibility for design and industrial implementation of MnS as advanced anode materials for LIBs.
研究领域:
材料科学
·
能源存储
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Qi Zeng,Shuhao Tian,Guo Liu,Hongcen Yang,Xiao Sun,Di Wang,Juanjuan Huang,De Yan,Shanglong Peng
Manganese sulfide (MnS) has been found to be a suitable electrode material for lithium-ion batteries (LIBs) owing to its considerable theoretical capacity, high electrochemical activity, and low discharge voltage platform, while its poor electrical conductivity and severe pulverization caused by volume expansion of the material limit its practical application. To improve the rate performance and cycle stability of MnS in LIBs, the structure-control strategy has been used to design and fabricate new anode materials. Herein, the MnS@MXene@CNF (MMC, CNFs means carbon nanofibers) electrode has been prepared by electrospinning and a subsequent high-temperature annealing process. The MMC electrode exhibits excellent cyclic stability with a capacity retention rate close to 100% after 1000 cycles at 1000 mA/g and an improved rate performance with a specific capacity up to 500 mAh/g at a high current density of 5000 mA/g, much higher than the 308 mAh/g of the MnS@CNF (MC) electrode. The elevated electrochemical performance of the MMC electrode not only benefits from the unique structure of MnS nanoparticles evenly dispersed in the well-designed flexible self-supporting three-dimensional (3D) CNF network but, more importantly, also benefits from the formation of sulfur-bridged Mn–S–C bonds at the MnS/MXene interface. The newly formed bonds between MnS and MXene nanosheets can stabilize the structure of MnS near the interfaces and provide a channel for fast charge transfer, which notably increase both the reversibility and the rate of the conversion reaction during the charge/discharge process. This work may pave a new path for designing stable and self-supporting anodes for high-performance LIBs.
研究领域:
材料科学
·
电化学
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产品关联
DOI
PubMed
高影响因子
Advanced Healthcare Materials
·
2025
·
IF 9.6
Yinuo Yuan,Liya Tian,Xinyu Liu,Kai Guo,Ke Ren,Lei Yan,Mengyao Mu,Shangui Liu,Feifei Teng,Cun Liu,Ping Liang,Xiao Sun
The development of T 1 -T 2 dual-mode contrast agents is expected to improve cancer diagnostic capabilities in response to the limitation of traditional single-mode magnetic resonance imaging (MRI) contrast agents. In this study, a pH-responsive dual-mode MRI nanoprobe, Fe 3 O 4 @MnS-transferrin (FMT), is prepared with the objective of augmenting tumor visualization and chemodynamic therapy (CDT). FMT achieved precise tumor targeting by binding to transferrin receptors on cancer cells via the transferrin molecules on their surface. FMT underwent pH-responsive decomposition in the acidic tumor microenvironment, releasing Fe 3 O 4 and Mn 2+ . This decomposition increased the spatial separation between Fe 3 O 4 and Mn 2+ , attenuating the mutual magnetic shielding effect and activating dual-mode MRI function. Moreover, FMT released Mn 2+ and hydrogen sulfide (H 2 S). Mn 2+ triggered a Fenton-like reaction, generating reactive oxygen species that induced cytotoxicity through CDT. Concurrently, H 2 S inhibited catalase activity, providing additional substrates for the Fenton-like reaction, thereby amplifying CDT in a cascading manner. This synergistic mechanism amplified the cytotoxicity of CDT, enhancing the efficacy of tumor treatment and metastasis inhibition. Therefore, FMT demonstrated significant promise for enhancing both the precision of tumor imaging and the efficacy of treatment.
研究领域:
纳米医学
·
磁共振成像
·
癌症治疗
·
生物无机化学
·
药物递送
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 15
·7279-7289
·
IF 3.925
Zhengrong Yin,Xiangli Zhang,Yan Bai,Yanwei Yang,Bin Liu,Zengjie Fan
Conventional topical medications for recurrent aphthous ulcers (RAU) are limited due to the washing effects of saliva and activities of masticatory muscles decreasing the local effective drug concentration. To overcome this drawback, a dissolvable and layered hyaluronate (HA) microneedle (MN) patch loading recombinant bovine basic fibroblast growth factor (rbFGF) and cetylpyridinium chloride (CPC) was prepared and used for the treatment of RAU. The MN patch was prepared via a two-step casting method and subsequently characterized using fluorescence microscopy, scanning electron microscopy (SEM), and stereomicroscopy. Moreover, its mechanical properties, penetrating ability, dissolution behavior, antibacterial performance, cytotoxicity as well as ulcer healing efficacy on the rat model were determined. The results revealed that the prepared MNs possessed uniformly arranged conical needles with the drug centrally distributed in the tips. The rbFGF/CPC-loaded HA MN patch presented favorable mechanical, dissolving, and antibacterial properties and biocompatibility, increasing the growth and proliferation of fibroblasts. More importantly, this MN patch showed a higher healing effect in promoting the healing of chemical-induced RAU within five days than the control group and the conventional treatment group. The novel MN patch will have potential application prospects in the treatment of oral ulcer.
研究领域:
药剂学
·
药物递送系统
·
口腔医学
·
生物医学工程
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产品关联
DOI
高影响因子
Materials Chemistry Frontiers
·
2024
·
IF 6
Yuru Zhou,Jing Hu,Yinan Liu,Wenyu Fan,Panpan Tao,Rui Yang,Haitao Huang,Xun Cao,Haijin Li,Siwei Li
Designing noble metal-free electrocatalysts remains a challenge for the oxygen evolution reaction (OER) in alkaline solutions. In this study, we present a facile electrodeposition approach coupled with an in situ anodic oxidation method to synthesize NiOOH–MnS/NF on nickel foam (NF), successfully creating NiOOH–MnOOH/NF heterojunctions to boost OER performance under alkaline conditions. The heterojunction's synergistic effect significantly modulates the adsorption energy of the rate-determining step (RDS), thereby enhancing the intrinsic electrocatalytic activity of the NiOOH–MnOOH/NF electrocatalyst. Furthermore, the introduction of SO42− leads to a variable degree of electron loss in both Mn and Ni, reducing adsorption strength of the OER intermediates and thus optimizing reaction kinetics. The as-prepared NiOOH–MnOOH/NF electrocatalyst demonstrates exceptional OER performance in 1.0 M KOH, achieving a current density of 100 mA cm−2 with a Tafel slope of 52.3 mV dec−1 and a minimal overpotential of 391 mV. Utilizing NiOOH–MnOOH/NF as a bifunctional electrode for overall water splitting (OWS), the system operates at a low potential of 1.66 V at 10 mA cm−2, showcasing its excellent durability. This work offers novel insights and promising prospects for the advancement and practical application of non-precious metal electrocatalysts in the field of electrocatalytic water splitting.
研究领域:
电化学
·
材料科学
·
催化
·
能量转换与存储
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）