POLYHEDRON
·
2019
·
IF 2.284
Guo-Cheng Liu,Yan Li,Zhen-Jie Lu,Xiu-Li Wang,Xiang Wang,Xing-Xing Chen
By introducing different metal ions, six new coordination polymers (CPs) [Zn(L) 0.5 (DTSA)]·H 2 O ( CP1 ), [Cd(L) 0.5 (DTSA)(H 2 O)] ( CP2 ), [Mn(L) 0.5 (DTSA)(H 2 O)] ( CP3 ), [Co(L) 0.5 (DTSA)(H 2 O)] ( CP4 ), [Ni(L) 0.5 (DTSA)(H 2 O)] ( CP5 ), [Pb 2 (L) 0.5 (DTSA) 2 ] ( CP6 ), [ N , N ′-bis(4-methylenepyridin-4-yl)-1,4-benzenedicarboxamide (L), 2,2′-dithiodibenzoic acid (H 2 DTSA)] have been synthesized under hydrothermal conditions. CP1 is a unified node (4,4)-connected network derived from Zn 2 nodes, pairs of DTSA anions and μ 2 -L linkers. CP2 – CP5 display similar binode (4,4)-connected layers based on single metal centers, μ 2 -DTSA anions and μ 4 -L linkers. CP6 show a novel 3D (3,4,4,5)-connected Pb-based framework, which is constructed form Pb-DTSA layers and μ 4 -L linkers. The effect of metal ions on the architectures of the title complexes is investigated. The experimental results indicate that CP1 , CP2 and CP6 are efficient luminescent sensors for the detection of Fe 3+ ions ( CP1 and CP2 ) and dimethyl sulfoxide (DMSO) ( CP1 and CP6 ). In addition, CP3 – CP5 show different electrochemical response to nitrite and bromate in water solution.
研究领域:
化学
·
材料科学
✓ 已验证
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2020
·
IF 6.551
Na Qi,Hui Zhao,Yan Qin,Qiaozhi Wang,Guojie Wang,Ying Li
In many industrial fields, treatment of composite contaminations involving inorganic heavy metal ions and organic pollutants simultaneously remains a tremendous challenge. In this paper, an innovative strategy based on the gelation process of Sodium Alginate (SA) was proposed for synchronous treatment of composite pollutants. Through a pre-gelation step, SA gel balls encapsulated with S 2− (SA/S 2− gel) were formed and immersed into polluted solutions containing Pb 2+ /Cd 2+ and Cd 2+ /dye. The removal efficiency of Pb 2+ /Cd 2+ by SA/S 2− gel were both increased compared with pure SA gel. The adsorbed Pb 2+ /Cd 2+ was in-situ transformed into PbS/CdS quantum dots (QDs) possessing photo-catalytic activity, which induced the degradation of dyes under UV irradiation. In this respect, the proposed SA/S 2− system might provide a high-performance and energy-saving way for comprehensive treatment of inorganic heavy metal and organic industrial pollutants.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
NANOTECHNOLOGY
·
2023
·Vol. 34
·期 24
·245402
·
IF 3.5
Zhenggang Jia,Congyan Bai,Xuexi Zhang,Mingfang Qian,Hsu-Sheng Tsai,Yueping Xiong
As an alternative anode to graphene, molybdenum disulfide (MoS2) has attracted much attention due to its layered structure and high specific capacity. Moreover, MoS2 can be synthesized by hydrothermal method with low cost and the size of its layer spacing can be controlled. In this work, the results of experiment and calculation proved that the presence of intercalated Mo atoms, leading to the expansion of MoS2 layer spacing and weakening of Mo–S bonding. For the electrochemical properties, the presence of intercalated Mo atoms causes the lower reduction potentials for the Li+ intercalation and Li2S formation. In addition, the effective reduction of diffusion resistance and charge transfer resistance in Mo1+xS2 leads to the acquisition of high specific capacity for battery applications.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Zhiwei Lu,Jinrong Li,Qingliang Chen,Lixiao Xu,Jie Yun,Gehong Su,Chun Wu,Xiaodan Du,Xiaohan Cao,Hanbing Rao,Yanying Wang,Mengmeng Sun
Preventing bacterial infection and accelerating wound closure are critical for wound healing. Herein, a novel multifunctional polyvinyl alcohol-polyvinylpyrrolidone (PVA-PVP) microneedle (MN) patch embedded with enzyme-like activity (Co 3 Fe)(S 2 ) 4 (CFS) nanoparticles and metal ions (Co 2+ and Fe 3+ ) was systematically synthesized for the management of bacteria-infected wounds. CFS regulated redox homeostasis and achieved bacterial eradication while concomitantly alleviating oxidative damage. Specifically, CFS generated reactive oxygen species (ROS) to eliminate bacteria and concurrently attenuated cellular inflammation by scavenging ROS through their superoxide dismutase-like (SOD) activity. Meanwhile, the results of RNA transcriptome sequencing and quantitative real-time polymerase chain reaction (qRT-PCR) analyses indicated that Co 2+ and Fe 3+ can inhibit inflammatory responses in mice by modulating the IL-17 and NF-κB signaling pathways. Therefore, CFS-ion-MN significantly enhanced the healing of wounds infected with methicillin-resistant Staphylococcus aureus ( MRSA ) in mice model without eliciting systemic toxicity. Overall, this study offers an innovative methodology for the development of composite materials for the effective treatment of wounds.
研究领域:
生物材料学
·
医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Chenyu Song,Jishuang Yang,Chinnadurai Ayappan,Shree Kesavan Kannan,Haitang Yang,Ruimin Xing,Hongxun Yang,Shanhu Liu
The large-scale application of water electrolysis technology is limited by the slow kinetics of the oxygen evolution reaction (OER) that cause vast energy loss. Rational design and construction of hierarchical heterostructures are helpful for developing efficient OER electrocatalysts due to their interesting morphological features and electrochemical properties. Herein, we prepared hierarchical CoS 2 @(Fe,Ni)S 2 heterostructures on carbon fiber paper (CoS 2 @(Fe,Ni)S 2 /CFP) with particle-on-wire morphology using prussian blue analogue as template and precursor. The unique hierarchical heterostructure maximizes accessible active sites and the synergistic effect between different components significantly improves electrocatalytic activity. Impressively, CoS 2 @(Fe,Ni)S 2 /CFP electrocatalyst requires a small overpotential of 237 mV to achieve a current density of 20 mA cm −2 with a low Tafel slope of 54 mV dec −1 and the corresponding voltage has no obvious change after 60 h stability test under a constant current density of 50 mA cm −2 in 1 M KOH solution. This work provides a new idea for the design of efficient and stable non-noble metal-based OER electrocatalysts.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICAL CHEMISTRY
·
2011
·
IF 5.874
Hu-Bo Ren,Bo-Yue Wu,Jia-Tong Chen,Xiu-Ping Yan
Detection of intracellular Zn2+ has gained great attention because of its biological significances. Here we show the fabrication of silica-coated S2–-enriched Mn-doped ZnS quantum dots (SiO2–S–Mn–ZnS QDs) by enriching S2– with a silica shell on the surface of Mn-doped ZnS QDs via a sol–gel process for imaging intracellular Zn2+ ions. The developed probe gave a good linearity for the calibration plot (the recovered PL intensity of the SiO2–S–Mn–ZnS QDs against the concentration of Zn2+ from 0.3 to 15.0 μM), excellent reproducibility (1.2% relative standard deviation for 11 replicate measurements of Zn2+ at 3 μM), and low detection limit (3s; 80 nM Zn2+). The SiO2–S–Mn–ZnS QDs showed negligible cytotoxicity, good sensitivity, and selectivity for Zn2+ in a photoluminescence turn-on mode, being a promising probe for photoluminescence imaging of intracellular Zn2+.
研究领域:
生物化学
·
纳米医学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LUMINESCENCE
·
2021
·Vol. 36
·期 6
·1525-1530
·
IF 2.464
Yi Pan,Zheng Fang,Hanjiao Chen,Zhou Long,Xiandeng Hou
A simple method was developed in this work for facile and visual detection of S 2− using a paper-based fluorescence (FL) sensor coated with CdTe quantum dots (QDs) by headspace sampling. With the addition of hydrochloric acid, the target S 2− in the liquid phase would transform to H 2 S, which was released to headspace and quenched the FL of CdTe QDs in a linear manner through a gas–solid reaction, with any possible liquid-phase interference avoided. The regular quenching caused by S 2− in analyte solution with increased concentration could be easily observed by the naked eye, and the limit of detection (LOD) for this method was 0.13 μM and 0.93 μM for FL and visual sensing, respectively, comparable or not to that by other sensing probes. A relative standard deviation of 1.2% was accomplished from seven replicated measurements, implying the high reproducibility, and the recovery for the spiked water samples ranging from 94 to 103%, and illustrating the satisfactory reliability of this method. Moreover, the preparation of this paper sensor was facile and did not require any complicated or time-consuming procedures for additional modification or functionalization as for other probes previously reported.
研究领域:
分析化学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Bing Ou,Yang Liu,Hao Sun,Zhenning Xing,Haipeng Di,Yingrong Jin,Yiying Zhao
Modification of the electron transport layers is extremely important for improving the efficiency and stability of perovskite solar cells (PSCs) due to its critical role in the electron extraction and crystallization of perovskite layers. Na2S has been reported as an effective dopant and a surface-modification layer as well for a compact TiO2 layer. This paper further investigated the distribution and the working mechanism of sulfur ions via comparing the properties of Na2S-doped and Na2S-coated TiO2 layers and the corresponding devices. A simple deionized-water rinsing process was introduced for its removal capability of Na and S elements in compacted TiO2 layers. From the characterization results of TiO2 layers after rinsing and corresponding PSCs, we can draw the conclusion that Na+ and S2– are mainly located on the TiO2 surface and grain boundaries in the TiO2 layers, and only a very small amount of S elements participates in the bonding with the TiO2 crystal lattice of the Na2S-doped TiO2 layers. This work provides some insights on the understanding of the mechanism of S2– passivation in PSCs and may stimulate further investigation on defect passivation in the perovskite research community.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
Laser & Photonics Reviews
·
2026
·
IF 9.7
Lingling Zhang,Yue Li,Edwin Yue Bun Pun,Hai Lin
The precise mapping of temperature distributions with laser-induced imaging is critical across diverse fields, from microelectronics to energy storage and biomedical engineering. Herein, phase-selective growth is conducted in a non-vacuum sulfur-rich environment, where NaGd 1-x Er x S 2 (NaGdS 2 -E x ) phosphors with high-efficiency up-conversion luminescence are successfully prepared. The ordered segregation of Er 3+ within the GdS 6 layers effectively suppresses non-radiative relaxation, producing a nonlinear quantum yield enhancement driven by an explosive surge in photon output upon increasing excitation power, which enables anti-stokes photon imaging. Furthermore, the microcrystals are successfully incorporated into NaGdS 2 -E x @polyacrylonitrile-polyurethane (NaGdS 2 -E x @PAN-TPU) membranes via electrospinning, achieving 2D fixation while preserving high luminescence efficiency, thereby expanding the application adaptability. Remarkably, the design of a thermally and non-thermal coupled upconverting based on the NaGdS 2 -E x @PAN-TPU system results in highly sensitive temperature sensing, achieving maximum relative sensitivities of 1.069 and 0.475% K −1 at 313 K. These findings provide a flexible platform, particularly for its potential in real-time visual thermometry within micro-nano electronic devices, while also paving the way for laser identification in maritime search and rescue operations.
✓ 已验证
DOI
高影响因子
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2025
·
IF 3.8
Zeng Ronghua,Zhuo Dali,Dong Xiaoyu,Tang Jiayuan,Liu Yuxin,Zhang Shu,Luo Hong,Xu Fengzhou,Zou Zhirong
Sulfide ions (S 2− ) are a hazardous pollutant present in our daily lives; thus, the accurate detection of S 2− is critical for human health. However, conventional analytical methods have the disadvantage of high costs, complex operations, and the need for laboratory analysis. In this work, a miniaturized analytical kit was established for rapid analysis of S 2− in water samples and food additives. In the presence of platinum nanoparticles (NPs), H 2 O 2 was decomposed to O 2 catalyzed by Pt NPs, resulting in a substantial increase in pressure inside the sealed reaction bottle. In the presence of S 2- , S 2− forms a Pt–S bond with Pt NPs and induces aggregation, thereby reducing the catalytic activity of Pt NPs, resulting in a decrease in O 2 production and a corresponding decrease in gas pressure. Thus, the analysis of S 2− was achieved by the measurement of gas pressure. S 2− concentrations were inversely proportional to the gas pressures within a linear range of 0.2–5 μg/mL. A portable analytical kit was fabricated for rapid analysis of S 2− in various samples, achieving recoveries of 90–109%, confirming its suitability as a potential analytical device for on-site environmental analysis and rapid food inspection. Graphical
研究领域:
环境分析
·
食品安全
·
分析化学
·
纳米材料
·
传感器技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Gut Microbes
·
2022
·
IF 9.434
Liqiu Jia,Shufeng Weng,Jing Wu,Xiangxiang Tian,Yifan Zhang,Xuyang Wang,Jing Wang,Dongmei Yan,Wanhai Wang,Fang Fang,Zhaoqin Zhu,Chao Qiu,Wenhong Zhang,Ying Xu,Yanmin Wan
The origins of preexisting SARS-CoV-2 cross-reactive antibodies and their potential impacts on vaccine efficacy have not been fully clarified. In this study, we demonstrated that S2 was the prevailing target of the preexisting S protein cross-reactive antibodies in both healthy human and SPF mice. A dominant antibody epitope was identified on the connector domain of S2 (1147-SFKEELDKYFKNHT-1160, P144), which could be recognized by preexisting antibodies in both human and mouse. Through metagenomic sequencing and fecal bacteria transplant, we demonstrated that the generation of S2 cross-reactive antibodies was associated with commensal gut bacteria. Furthermore, six P144 reactive monoclonal antibodies were isolated from naïve SPF mice and were proven to cross-react with commensal gut bacteria collected from both human and mouse. A variety of cross-reactive microbial proteins were identified using LC-MS, of which E. coli derived HSP60 and HSP70 proteins were confirmed to be able to bind to one of the isolated monoclonal antibodies. Mice with high levels of preexisting S2 cross-reactive antibodies mounted higher S protein specific binding antibodies, especially against S2, after being immunized with a SARS-CoV-2 S DNA vaccine. Similarly, we found that levels of preexisting S2 and P144-specific antibodies correlated positively with RBD binding antibody titers after two doses of inactivated SARS-CoV-2 vaccination in human. Collectively, our study revealed an alternative origin of preexisting S2-targeted antibodies and disclosed a previously neglected aspect of the impact of gut microbiota on host anti-SARS-CoV-2 immunity.
研究领域:
免疫学
·
微生物学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Umar Abdulbaki Danhassan,Xin Zhang,Riying Qi,Mahmoud M. Ali,Kuichuan Sheng,Hongjian Lin
Pristine biochar (PBC) is flourishing in adsorptive oxidation for pollutants remediation as an alternative to carbon adsorbents derived from coal/petroleum carbon sources, multistep, and hash synthesis. However, it is widely overlooked for aqueous S 2- remediation because the rational design of biochar with proper conductive and porous structure is challenging. Cobalt or iron ion was impregnated in biomass to produce biochar with different porous and conductive structures and explore S 2- adsorptive oxidation mechanism. Finding suggests cobalt and iron ions facilitate biomass decomposition to remove volatile matter, which transforms them into elemental cobalt (Co 0 ) or magnetite (Fe 3 O 4 ) on biochars (BC-Co) or (BC-Fe) and improves the porous structure. BC-Co benefitted from superior mesopores to adsorb S 2- 2.4 and 35 times faster than PBC and BC-Fe, achieving 811 ± 146 mg-S 2- /g maximum capacity. BC-Fe removed S 2- far less than PBC because Fe 3 O 4 on its surface blocked S 2- diffusion channel to the active site. It is postulated that S 2- was removed from water via external and internal diffusion and adsorption and oxidation at active sites. S 2- diffuses from bulk liquid to film near the biochar pore and into the pores via pore and surface diffusion to the active site, where it is adsorbed and oxidized to elemental sulfur or sulfate by quinone , semiquinone, or hydroxyl radicals at the wall of biochars. This study has documented fundamental information for developing mesoporous electroactive biochar for contaminant removal.
研究领域:
环境科学
·
化学工程
·
材料科学
✓ 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）