INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Jianghui Bai,Zhipeng Fan,Haitong Tang,Guangshe Li,Liping Li
Tunable multicolor luminescence materials can flexibly meet the needs of smart lighting, enabling efficient light energy use and minimizing waste. Lead-free hybrid double perovskites A2MIMIII(NO3)6 hold great potential in luminescence, benefiting from their tunable composition, high light absorption, low synthesis cost, and environmental friendliness. However, achieving tunable multicolor emission within a single matrix of these materials has yet to be realized. In this study, a series of [(CH3)4N]2KEu1–xTbx(NO3)6 single crystals have been synthesized using an environmentally friendly and mild aqueous solution evaporation method. The two emitter centers, Tb3+ and Eu3+, display energy transfer from Tb3+ to Eu3+. The emission color of the as-synthesized crystals gradually changes from red to orange, then to yellow, and finally to green with an increase of Tb3+ concentration, achieving yellow and green light emission in the three-dimensional rare-earth hybrid double perovskites for the first time. Green emission from [(CH3)4N]2KTb(NO3)6 displays the highest quantum yield at 87%. The millisecond-level emission decay time and high decomposition temperatures (365 °C) of [(CH3)4N]2KEu1–xTbx(NO3)6 single crystals highlight their potential for use in luminescent devices and phosphors, among other fields.
研究领域:
材料科学
·
光学
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PubMed
高影响因子
JOURNAL OF CATALYSIS
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2026
·
IF 6
Jie Wang,Feng Gao,Jilei Lin,Chunjuan Zhang,Meiqing Shen,Linghui Kong,Gurong Shen
Ammonia is emerging as a promising carbon-free energy carrier. The electrocatalytic ammonia oxidation reaction (AOR), highly structure-sensitive, exhibits exceptional activity on Pt nanocubes (NCs) with (100) facets. Yet, synthesis methods employing metal carbonyl capping agents inevitably introduce residual metals, whose catalytic effects are often neglected. Here, Pt NCs synthesized with Mo(CO) 6 were found to contain trace Mo both in the bulk and at the surface. Surface Mo species, partially oxidized to MoO x , substantially modify the electronic structure of Pt(100), lowering activation barriers for rate-determining AOR steps and enhancing resistance to nitrogen poisoning. These effects collectively boost AOR performance, enabling a direct ammonia fuel cell with a Pt-154 anode to achieve a peak power density of 26.7 mW cm −2 . These results reveal the overlooked impact of capping-agent-derived contaminants in AOR and point to the deliberate incorporation of heterometallic modifiers as a viable strategy for advanced electrocatalyst design.
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CHEMISTRY OF MATERIALS
·
2026
·
IF 7.1
Wen-Rui Zhou,Zhen-Cheng Wu,Yong-Han Liu,Mao-Yin Ran,Sheng-Ping Guo
Noncentrosymmetry is the prerequisite for second-order nonlinear optical (NLO) activity, yet rationally converting centrosymmetric (CS) lattice into noncentrosymmetric (NCS) framework while simultaneously enhancing structural robustness remains nontrivial. Herein, we demonstrate a symmetry-breaking structural transformation from CS KInGeS4 to NCS KInGe2S6, in which the insertion of {[Ge2S7]6–}∞ chains disrupts the inversion symmetry in {[InGe2S6]−}∞ layers, and triggers a topological reorganization from layered architecture into a 3D framework. This architectural evolution endows the [InS4] tetrahedra with the highest degree of geometric distortion and the largest hyperpolarizability among known [InS4]-based functional building units. Crucially, KInGe2S6 exhibits a balanced set of favorable NLO performances, including a wide bandgap (Eg = 3.2 eV), phase matchable second-harmonic generation (0.4 × AgGaS2), moderate birefringence (Δn = 0.08@546 nm), and a high laser-induced damage threshold (7.18 × AgGaS2). First-principles calculations corroborate that the NLO effect originates primarily from the cooperative alignment of distorted [MS4] (M = In, Ge) tetrahedra. This work presents a strategy for developing high-performance mid-infrared NLO crystals through the synergistic control of dimensionality engineering and symmetry breaking.
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POLYMER
·
2026
·
IF 5.1
Junhong Liu,Xiang Wang,Ruomei Wu,Haiyun Jiang
The copolymer P(TT -co- ICA) was prepared with different ratio of 2,2’:5′,2″-trithiophene (TT) and indole-6-carboxylic acid (ICA) via the potentiostatic method. The film structure was characterized by using field emission scanning electron microscopy (FE-SEM), ultraviolet-visible (UV-vis) spectroscopy and Fourier transform infrared spectroscopy (FTIR). The electrochemical and electrochromic properties were investigated through chromametry, cyclic voltammetry (CV), and spectroelectrochemical techniques. The P(TT -co- ICA) achieves a color difference (ΔE) of 85.19, substantially higher than the 12.30 observed for the PICA. The optical bandgap of P(TT -co- ICA) (2.43-2.49 eV) is lower than that of PICA (2.52 eV). P(TT -co- ICA) exhibited excellent color modulation capability, displaying reversible transitions between orange-yellow, gray-green, and blue-gray at different applied potentials. Furthermore, P(TT -co- ICA) demonstrates superior optical contrast (35.6–56.8%), high coloration efficiency (127–252 cm 2 /C), and satisfactory cycling stability (53–78% retention). These findings indicate that the incorporation of the TT monomer effectively enhances both the color difference and electrochromic performance of the P(TT -co- ICA) , establishing it as a promising candidate material for electrochromic applications.
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 5
·301
·
IF 5.4
Wang Junbo,Holman Joseph Benjamin,Chen Xiangyu,Sun Jiaying,Qiu Bensheng,Zhang Anqing,Ding Weiping,Li Chengpan
In gout progression, uric acid (UA) accumulation triggers crystal deposition, while interleukin-6 (IL-6) drives the subsequent inflammatory flares. Therefore, monitoring both UA and IL-6 is important for gout management. In this study, for the first time a microfluidic electrochemical system (MES) has been developed to simultaneously detect UA and IL-6 levels in blood. The MES consists of a multilayer microfluidic chip that incorporates a plasma separation module and two screen-printed electrochemical (SPE) sensors, integrated with a wireless potentiostat for real-time data analysis. The working electrode (WE) of one SPE was modified with uricase and hydrophilic fumed nano-silica (FSiO₂) for UA sensing, and the WE of the other SPE was modified with gold nanoparticle-reduced graphene oxide (Au NPs/rGO) composites and antibodies for IL-6 sensing. The MES demonstrated excellent analytical performance for the simultaneous detection of UA and IL-6 in human blood, featuring high selectivity, broad linear ranges (10-1000 µM for UA and 0.001-100 ng/mL for IL-6), robust stability, and strong concordance with reference methods (R² > 0.95). This study provides a proof-of-concept platform for gout-related biomarker determination and offers a new strategy for the development of multi-biomarker electroanalytical devices.
Section
Graphical
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Mingtao Wu,Weihong Zeng,Yunqi Xu,Wanding Chen,Yiwei Zhou,Kejian Yang,Zetong Ma,Xudong Chen
Abstract To address the insufficient toughness and transparency of nylon-6 (PA6) caused by high crystallinity, this study proposes a copolymer strategy based on side-methyl structural regulation. A series of PA6/D6 copolyamides were prepared via in situ melt copolymerization of ε-caprolactam, 2-methyl-1,5-pentanediamine, and adipic acid, enabling high-value utilization of the MPMD byproduct. Structural analyses confirmed incorporation of D6 units, whose steric hindrance weakened hydrogen bonding, promoting transformation from the ordered α-form to the γ-form and reducing lamellar and spherulitic ordering. This resulted in lower melting/crystallization temperatures with good thermal stability, expanding the processing window, while restricted chain slippage increased melt viscosity and elasticity. Increasing D6 content enhanced ductility and transparency: PA6/D60.2 achieved elongation at break exceeding 1000% with high tensile strength, while PA6/D60.3 showed the highest transmittance. This work elucidates the mechanism of side-methyl steric hindrance on PA6′s structure, offering a strategy for tough, transparent, processable copolyamide 6.
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BIORESOURCE TECHNOLOGY
·
2026
·
IF 8.2
Weiwei Meng,Mengjian Gao,Lulu Li,Liming Liu,Xiaomin Li,Wanqing Wei,Jing Wu
Osteoarthritis remains a global health problem and chondroitin sulfate C (CSC) is effective to treat arthritis. The biosynthesis of CSC offers a sustainable and promising alternative to conventional extraction from animal tissues. However, the scarcity of chondroitin-6-O-sulfotransferases and their low catalytic performance have severely hindered the large-scale biosynthesis of CSC. To overcome these limitations, a novel chondroitin-6-O-sulfotransferase from Rattus norvegicus ( Rn CHST3) was identified via gene fishing, which demonstrates regioselectivity in transferring a sulfate group from 3′-phosphoadenosine-5′-phosphosulfate (PAPS) to the 6-position of chondroitin. Subsequent optimization of expression conditions and truncation of the N -terminal region enhanced the sulfation rate from 4.6% to 11.5%. For the first time, the regioselective mechanism of Rn CHST3 was elucidated through molecular dynamics (MD) simulations and site-directed mutagenesis. A mechanism-guided rational design led to the development of mutant M5, which increased the sulfation rate to 46.2%. Furthermore, a novel “physical sieve”-guided PROSS design was developed to improve kinetic thermostability, resulting in mutant M7. This variant exhibited an extended half-life from 9.4 h to 12.3 h and achieved a sulfation rate to 74.5%. Finally, a whole-cell catalytic system was constructed for CSC production, reaching a sulfation rate of 86.4% and a titer of 12.9 g·L −1 -the highest level reported to date. This study lays a solid foundation for the industrial biosynthesis of CSC.
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Environment & Health
·
2026
·
IF 8.8
Siyi Wang,Xianghui Wang,Kailun Wang,Shi Tang,Xia Sheng,Shunqing Xu,Yahang Lin,Mingxi Zhang,Fengzhen Cui
6-Chloronicotinic acid (6-ClNA) is a major metabolite of chloropyridinyl neonicotinoids in humans; however, its toxic effect on blood vessel development remains to be understood. In this study, we utilized a humanized blood vessel organoid (hBVO) model and single-cell transcriptomics technology to investigate the impact of 6-ClNA exposure on hBVO development. Morphologically, 6-ClNA did not significantly alter the growth of hBVO throughout 20 days of culture. Interestingly, single-cell transcriptomic analyses revealed that 6-ClNA-treated hBVOs exhibited significant imbalance in cell subpopulation homeostasis, including impaired endothelial cell function and abnormal proliferation of vascular smooth muscle cells. This was echoed by the morphological changes in the aortic arch and abdominal aorta of mice after acute exposure to 6-ClNA. Enrichment analysis showed that 6-ClNA exposure affected critical biological processes in a cell-type-specific manner, such as vascular developmental signaling, cellular energy metabolism, protein homeostasis, and hemodynamic responses. In addition, trajectory analysis suggested that 6-ClNA altered the differentiation trajectory of vascular progenitors. Together, our study profiles the toxicity of 6-ClNA on blood vessel development in a humanized 3D model at single-cell resolution, which provides important and detailed evidence for understanding the potential risk of early life exposure to chloropyridinyl neonicotinoids.
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PARASITOLOGY RESEARCH
·
2026
·
IF 1.9
Hou Jiaming,Ruan Rulin,Zhang Ting,Yang Yongqing,Xue Han,Song Mingxin,Han Caixia
In eukaryotes, with the exception of mammals, trehalose fulfills multiple biological functions, including energy provision and stress tolerance. Trehalose-6-phosphate phosphatase (TPP) is a key enzyme in the trehalose biosynthetic pathway, rather than a trehalose synthase per se. Loss of TPP function or knockdown of its expression impairs trehalose synthesis, which in turn leads to developmental abnormalities or lethality in nematodes. These observations suggest that TPP represents a potential target for the development of anti-parasitic therapeutics. This study focused on the cloning, expression, and characterization of Trichinella spiralis TPP (TsTPP). A recombinant plasmid was constructed to express and purify the recombinant TsTPP protein (rTsTPP), whose immunogenicity was confirmed using positive serum from Trichinella spiralis ( T. spiralis )-infected mouse. The expression of TsTPP at different developmental stages of T. spiralis was determined by immunofluorescence assay. The specific TPP inhibitor N-(phenylthio) phthalimide (NPP) was employed to evaluate its lethal effect on T. spiralis muscle larvae (ML) in vitro. Furthermore, molecular methods such as qPCR and Western blot were used to detect the transcription and protein expression levels of TsTPP upon NPP treatment, aiming to identify new drug targets against T. spiralis . We successfully constructed the recombinant plasmid and obtained rTsTPP. Positive serum assays demonstrated the immunogenicity of rTsTPP, and we used indirect immunofluorescence assay (IFA) to determine its localization across different developmental stages of T. spiralis . Distinct distribution patterns were observed: TsTPP was diffusely distributed throughout the body of newborn larvae (NBL), accumulated in the intestinal glands, midgut ampulla and genital primordia of muscle larvae (ML), and localized to the mid and posterior intestine of adult worms (AW). To verify the lethal effect of NPP in vitro, we treated ML with NPP at concentrations of 12.5, 25, 50, 100, and 200 µg/mL for 24, 36, and 48 h, and evaluated its lethal effect by statistical analysis of worm morphology. The experimental results showed that the mortality rate of ML gradually increased with increasing NPP concentration and culture time. When the concentration was 200 µg/mL, the survival rate of ML was less than 50%. Furthermore, when treated with NPP at concentrations of 12.5, 25, 50, 100, and 200 µg/mL for 24 h, the transcription levels of the TsTPP gene decreased by 19%, 23%, 30%, 38% (all p < 0.05), and 57% ( p < 0.01), respectively; after 36 h of treatment, the transcription levels of TsTPP gene were reduced by 18% ( p < 0.05), 23%, 35%, 39%, and 60% (all p < 0.01); after 48 h of treatment, the transcription levels of TsTPP gene decreased by 19%, 23%, 42%, 42%, and 65% (all p < 0.01), respectively. N-(phenylthio) phthalimide (NPP) exhibits significant lethal activity against T. spiralis by inhibiting the trehalose synthesis pathway, providing basic data for future NPP as a new clinical drug target.
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GENOME
·
2025
·
IF 1.7
Dai Di Chen,Xiao Na Liu,Liu Lian Zhang,Jiu Hua Zhang,Wen Ting Ban,Qing Hua Lu,Qingxin Li,Jin Chuan Wu
Aniline blue, a triphenylmethane dye, has been widely used in industrial and medical fields, leading to its gradual enrichment in environmental water. Its removal and degradation from the water is essential but very challenging. A bacterium Lysinibacillus sp. 38-6, which is able to efficiently degrade aniline blue, was isolated from the surface soil samples under withered leaves. The strain exhibited excellent decolorization capacity at high concentrations of aniline blue (91% at 1000 mg/L) and salt (90% at 75 g/L) as well as high temperature (92% at 45 °C). To investigate the dye degradation strategies of Lysinibacillus sp. 38-6 at the genomic level, its genome was sequenced and analyzed. The isolate possesses abundant genomic features responsible for degrading dyes. In particular, several genes encoding laccase, iron-dependent peroxidase, NAD(P)H-dependent FMN reductase, and short-chain dehydrogenase/reductases might contribute to the cleavage of chromophore groups and aromatic rings in aniline blue. In addition, a number of genes required for heat, salt, and oxidative stress responses were found, indicating that Lysinibacillus sp. 38-6 is able to efficiently degrade dyes at higher temperature, salty and oxidative environments. It is thus inferred that isolate 38-6 has the potential for applications in efficient degradation of aniline blue in wastewater treatment.
研究领域:
环境微生物学
·
基因组学
·
生物修复
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工业废水处理
·
染料微生物降解
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高影响因子
Energy Storage Materials
·
2021
·
IF 17.789
Ruifa Bai,Jian Yang,Guojie Li,Jiayan Luo,Wenjing Tang
The application needs of small electronic devices and large-scale power grid storage continuously promote the development of a new battery energy system. Rechargeable metal batteries based on aluminum (Al) are of enormous potential due to the abundant Al reserves, the trivalent charge carrier, high theoretical specific capacity (2980 mAh/g), and volumetric energy density (8046 mAh/cm 3 ). However, the passivating oxide layer on the surface of the Al anode blocks the migration of electrons and ions, resulting in the operation difficulty and irreversibility of aluminum-based batteries. Herein we treated Al anode with a deep eutectic solution (DES) and constructed stable solid interface interphase on its surface, which can effectively prevent surface passivation , improve the chemical properties of the interface, promote ion transfer, and enable aqueous Al batteries with superior electrochemical performance . The assembled symmetric cells with treat Al (TAl) can cycle for more than 300 h with a low overpotential (~0.2 V). The TAl anode coupling with the FPB cathode material to assemble the full cells based on the aqueous electrolyte system can deliver a high discharge capacity of 85 mAh/g and exhibit capacity retention of 58 mAh/g after 150 cycles and an average coulombic efficiency of 97.1% at a current density of 100 mA/g. This work provides a novel surface modification strategy of Al metal anode and demonstrates high stability and cost-effective aqueous Al metal battery system, which suggest the significance for the commercialization of Al-metal batteries and their applications in large-scale energy store.
研究领域:
电化学
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能源材料
·
无机化学
·
储能技术
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金属负极
·
水系电池
·
界面工程
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9
Xue Xin,Xuan Liu,Jie Gang,Xinyu Tang,Jingyao Tang,Hongmei Lv,Yunshan Guan,Yongquan Zhou,Weidong Zhang
Metal-organic frameworks (MOFs) show promises as boron adsorbents, but insufficient insight into adsorption mechanisms as a result of the unclear active site. In this study, a series of QHU-6 MOFs with identical structures were synthesized by tuning the amount of 1,4-cyclohexanedicarboxylic acid ligand. Characterization via SXRD, FT-IR, and XPS revealed Al–OH groups on unsaturated aluminum centers as active sites. The selective adsorption of specific boron species and the correlation between active site features and performance were revealed by 11 B NMR, Raman spectroscopy, and DFT calculations. The results showed that QHU-6 (0.5) achieved a boron adsorption capacity of 5.1 mmol·g −1 at 298 K, pH 10, and 0.5 M boron concentration, over two times higher than the commercial resin IRA743 (2.07 mmol·g −1 ). The adsorbents performed efficiently across both high and low boron concentrations, owing to their ability to selectively recognize and adsorb boron based on solution boron speciation. This work not only advances high-performance boron adsorbents but also deepens fundamental understanding of boron adsorption.
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