Nature Communications
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2026
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IF 15.7
Sun Yue,Cao Yuxiang,Liu Xiong,Zhang Chengjian,Zhang Xinghong
Elemental sulfur (S 8 ), an abundant petroleum byproduct, is leveraged as a linchpin monomer in an organobase-catalyzed step-growth addition polymerization with dithiols and diacrylates at ambient temperature. This method enables the scalable synthesis of poly(ester disulfide)s—featuring alternating ester and disulfide linkages—with exceptional atom economy ( > 95% yield), M n up to 42.0 kDa, and dual functionality: biodegradable ester units and stimuli-responsive disulfides. Mechanistic studies reveal a chemoselective three-component coupling involving S 8 ring-opening, disulfide anion formation, and Michael addition, quantitatively generating symmetric and asymmetric disulfides in near-equimolar ratios. Thermal and mechanical characterizations of the poly(ester disulfide)s reveal programmable properties: High thermal stability ( T d,5% = 248–281 °C), tunable phase behavior (amorphous T g = −64 °C to semicrystalline T m = 142 °C), and reductive degradation. By overcoming traditional limitations of harsh conditions and monomer scope, this strategy establishes S 8 as a versatile feedstock for functional polymers, opening avenues for dynamic materials in biomedicine and environmental remediation.
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PubMed
高影响因子
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
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2026
·
IF 4
Hongmei Wang,Bo Lei,Xinyu Bao,Xiaobin Gu,Jing Xia,Yong Huang,Huaqiao Tang,Fei Shi,Xing Huang,Bo liang,Jing Xu
Scabies (or Sarcoptic mange) is a highly contagious skin disease caused by the ectoparasite Sarcoptes scabiei. The resistance of S. scabiei to common acaricides like permethrin has been reported, yet their precise mechanisms remain elusive. Glutathione S-Transferase (GSTs) constitute an important class of detoxification enzymes. In this study, we found that the expression levels of SsGSTd3 and SsGSTd5 in S. scabiei were significantly up-regulated after exposure to LC 30 of permethrin, amitraz, and selamectin, suggesting that SsGSTd3 and SsGSTd5 are involved in the detoxification of these acaricides. Therefore, we used in vitro metabolic assay and bacterial survival assays to further investigate their specific detoxification mechanisms. Co-incubation with the acaricides reduced the 1-Chloro-2,4-dinitrobenzene (CDNB) activities of both recombinant proteins to varying degrees. HPLC analysis revealed that SsGSTd3 and SsGSTd5 metabolized 35.24% and 53.28% of permethrin, respectively, but did not metabolize amitraz. SsGSTd3 metabolized a small fraction of selamectin (3.25%). In addition, bacterial survival assays demonstrated that under oxidative stress induced by CHP and H 2 O 2 , the OD 600 values of E. coli overexpressing SsGSTd3 or SsGSTd5 were significantly higher than those of control group, indicating robust antioxidant activity for both proteins. In conclusion, our findings demonstrate that SsGSTd3 and SsGSTd5 facilitate permethrin detoxification via a dual mechanism—metabolic and alleviation of oxidative stress, and may represent an early warning sign of decreased susceptibility to amitraz and selamectin through their antioxidant functions.
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ACS Applied Energy Materials
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2026
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IF 5.5
Jingqi Che,Lingying Chen,Mengran Li,Rui Shi,Jiguang Zhang,Yana Liu,Jun Wang,Yunfeng Zhu
Catalytic doping is considered one of the most efficient strategies to achieve superior performance of MgH2, as rationally designed catalytic components can exhibit synergistic effects, thereby optimizing the kinetic pathways. In this study, the hydrothermal method was adopted to prepare clustered Ni–Mo–S catalysts, which were used to modify MgH2 to enhance its kinetic performance. Experimental results demonstrate that the molar proportion of Ni to Mo significantly impacts the modification effect of Ni–Mo–S catalysts on MgH2. Furthermore, the catalyst whose molar ratio of Ni/Mo is 7:2 achieves the optimal catalytic efficiency. Specifically, at 125 °C, MgH2-5 wt % Ni–Mo–S can absorb 4.61 wt % H2 in 1200 s. At a relatively low temperature of 250 °C, it manifests a rapid dehydrogenation rate and releases 5.81 wt % H2 in 2000 s. The hydrogenation (41.98 kJ/mol) and dehydrogenation (86.41 kJ/mol) activation energies of MgH2-5 wt % Ni–Mo–S are reduced by 48.87 and 43.79% compared to as-milled MgH2, respectively. Mechanism analysis suggests that this improvement may be ascribed to the following reasons: (1) The hydrogen pump effect of Mg2Ni/Mg2NiH4 facilitates the hydrogen diffusion; (2) electron transfer between Mo species with different valence states weakens the Mg–H bonds; (3) the in situ formed MgS serves as diffusion channels for hydrogen atoms, expediting hydrogen transport. This work provides a valuable outlook for constructing highly active catalysts for MgH2 hydrogen storage.
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MICROPOROUS AND MESOPOROUS MATERIALS
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2026
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IF 4.7
Baomin Wang,Haoxiang Yang,Chengcheng Fan,Fei Liu,Wenxin Lu
Alkali-activated materials show excellent capture capacity on heavy metals, but the mechanisms to immobilize heavy metals remain inadequately explored. This work investigated the main hydration product C-A-S-H gels for encapsulation of heavy metals such as Pb(II), Zn(II) and Cd(II). Furthermore, the adsorption behavior and mechanisms of Pb(II) in pore solutions by C-A-S-H were examined. These findings reveal that aluminum is incorporated into the silicon chains of C-S-H in the form of aluminum-oxygen tetrahedra, thereby generating C-A-S-H. The bonding ratio, which depends on the Ca/Si ratio, reaches its peak value of 0.139 when the Ca/Si ratio is 0.9. In highly alkaline environments, amphoteric Pb(II) and Zn(II) form hydroxyl coordination polyhedra, enhancing silicon chain polymerization, whereas Cd(II) is immobilized via ion exchange with Ca(II), resulting in solid solutions. For C-A-S-H with a Ca/Si ratio of 0.6, Pb(II) adsorption occurs predominantly through physical interactions. However, as the Ca/Si molar ratio increases, the effect chemisorption and ion exchange become more significant along with the formation of Pb 8 Ca(Si 2 O 7 ) 3 . C-A-S-H gel with a Ca/Si ratio of 0.9 has the highest Pb(II) adsorption capacity, reaching 92.55 mg/g.
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ELECTROCHIMICA ACTA
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2019
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IF 5.383
Zhuosen Wang,Xijun Xu,Zhengbo Liu,Shaomin Ji,Sahar Osman Ahmed Idris,Jun Liu
Lithium–sulfur batteries (LSBs) have attracted much attention in the field of electrochemical energy storage due to their high energy density and low cost. However, the ‘shuttle effect’ of sulfur cathode, resulting in the poor cyclic performance of batteries, is a big barrier for the development of LSBs. To overcome this critical drawback, herein, a matrix of well-designed double carbon shells-encapsulated metallic Mo 2 C nanoparticles (Mo 2 C/C@C) is facilely achieved as an efficient sulfur host for high-performance LSBs. During the electrochemical process, the embedded polar and metallic Mo 2 C nanoparticles could effectively retard polysulfide migration. While for the carbon layers, they can not only act as conductive matrix but also promote the restriction for all sulfur species and maintain the structural stability simultaneously. Specially, the inner carbon layer is mainly for encapsulation and the outside one for surface-modification. As a result, such well-designed Mo 2 C/C@C–S cathode could effectively adsorb soluble polysulfides both from chemical and physical aspects, and well confines them inside the porous structure of Mo 2 C/C@C, thus achieving a high reversible capacity and superior cycling performance.
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高影响因子
ELECTROCHIMICA ACTA
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2020
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IF 6.215
Chuang-Chao Sun,You-Zhi Song,Yan Yan,Jia-Jia Yuan,Zheng Huang,Li-Feng Fang,Bao-Ku Zhu
Lithium−sulfur (Li−S) batteries are of great interest in next-generation flexible electronic devices for their much higher energy density. However, current Li−S batteries are still facing the problem about rational construction of the flexible power sources. Herein, a novel flexible and integrated electrode is fabricated through a non-solvent induced phase separation (NIPS) method with poly(m-phenylene isophthalamide) (PMIA) as the flexible support for Li-S batteries. Notably, the integrated electrode shows the capability of adapting the volume expansion of cathode materials, inhibiting the diffusion of lithium polysulfides and suppressing the dendrite growth of Li. As a result, battery assembled with the fabricated electrode exhibits a capacity of 773.6 mAh g −1 at 1 C. After 600 cycles, the capacity still remains at 565.5 mAh g −1 with the calculated capacity fade of 0.045% per cycle. This proposed strategy is advanced and feasible, which has great potential in next-generation portable electronic devices.
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JOURNAL OF APPLIED POLYMER SCIENCE
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2016
·Vol. 134
·期 9
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IF 1.866
Xin Liu,Yunfei Zhi,Shaoyun Shan,Hongying Su,Qingming Jia
A novel polysulfone was easily synthesized by alternating copolymerization of norbornene with sulfur dioxide (SO 2 ) via free radical copolymerization and coordination copolymerization. Compared with other olefin derivatives, norbornene is a cyclic olefin having a larger steric hindrance, which is easily copolymerized with SO 2 , and the obtained poly(norbornene sulfone)s have excellent thermomechanical and optical properties. The effect of the different polymerization methods on the copolymerization reaction was analyzed in detail. The results suggested that different polymerization mechanisms exist in the different polymerization methods and affect the thermal stability and optical properties of the polysulfone. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44534.
研究领域:
高分子化学
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材料科学
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高分子物理
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JOURNAL OF SOLID STATE CHEMISTRY
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2019
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IF 2.291
Bianbian Wang,Zhongnan Guo,Fan Sun,Jun Deng,Jiawei Lin,Dan Wu,Wenxia Yuan
Investigation on the magnetic interaction in Fe-based ThCr 2 Si 2 -type compounds is very important not only for understanding the structure-property relationship in this family but also for exploring the superconducting mechanism in related materials. In this work, we report the synthesis and physical properties of two new Fe-based chalcogenides KFeAgSe 2 and KFeAgS 2 . These two compounds adopt ThCr 2 Si 2 -type structure with I 4/ mmm space group and contain the Fe/Ag mixed occupation in the centre of edge-sharing Fe/AgCh 4 tetrahedron (Ch = Se, Te). The lattice parameters are refined to be a = 4.1866(2) Å, c = 13.7731(4) Å and a = 3.9845(3) Å, c = 13.3610(4) Å for KFeAgSe 2 and KFeAgS 2 respectively. Both two compounds show semiconducting behavior with electrical resistivity increased as the temperature decreased, while the resistivity of KFeAgS 2 is much larger (~61 Ω cm at room temperature) than that of KFeAgSe 2 (~2.5 Ω cm at room temperature). Most interestingly, despite the similar electronic structure of these two compounds, KFeAgSe 2 features a long-range antiferromagnetic order below 26 K while KFeAgS 2 shows a spin-glass state below 19 K. It is indicated that the long-range magnetic ordering can be suppressed in these ThCr 2 Si 2 -type transition metal chalcogenides via compressing the unit cell, that is to say, by chemical pressure. Our work not only gives a new sight to understand the structure-magnetism relationship in ThCr 2 Si 2 -type transition metal chalcogenides , but also provides clue to explore the mechanism of superconductivity in Fe-based family.
研究领域:
凝聚态物理
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材料科学
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磁性与磁性材料
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超导
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无机化学
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高影响因子
ACS Applied Materials & Interfaces
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2013
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IF 5.008
Gang Wang,Wangen Zhao,Yong Cui,Qingwen Tian,Shang Gao,Lijian Huang,Daocheng Pan
Homogeneous molecular precursor solutions are excellent choices for obtaining smooth absorber layers, and they offer the potential to significantly lower the manufacturing cost of solar cells. Here, we present a thermally degradable metal butyldithiocarbamate-based solution approach to fabricate Cu2ZnSn(S,Se)4 solar cells. Low-cost Cu2O, ZnO, and SnO were used as the starting materials and were dissolved in the ethanol solution of butyldithiocarbamic acid. By tuning the composition of the Cu2ZnSn(S,Se)4 thin film, a power conversion efficiency of 6.03% on the basis of the active area has been achieved.
研究领域:
材料科学
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光伏技术
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薄膜技术
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可持续能源
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APPLIED CATALYSIS A-GENERAL
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2026
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IF 4.8
Shengnan Xu,Yu Yu,Fuxin Wang,Jiande Hu,Zixiang Li,Guojun Lv
Cobalt-doped zeolite catalysts have been identified as a potentially viable non-precious metal alternative for toluene oxidation, exhibiting characteristics reminiscent of noble metals, such as the ability to activate C-H bonds, abundance, and minimal adverse environmental impact. However, the catalytic activity is greatly reliant on the diversity of cobalt species embedded within the zeolite framework. To address this, a ligand-engineering strategy was utilized to precisely control the coordination environment of the cobalt precursor, thereby regulating the resulting cobalt species and accordingly the catalytic activity of cobalt-doped zeolite catalysts. Four distinct Co@S-1 zeolites were synthesized with disparate ligands including ethylenediamine, water, ammonia water and acetylacetone, and meanwhile applied as heterogeneous catalysts for the selective oxidation of toluene with molecular oxygen as oxidant. Among them, the Co@S-1(EDA) zeolite catalyst synthesized with ethylenediamine demonstrated superior catalytic reaction performance, achieving a toluene conversion of 63.8 % with a benzaldehyde selectivity of 68.5 % within 6 h of reaction. This eminent catalytic oxidation ability for Co@S-1(EDA) zeolite catalyst is mainly ascribed to its largest Co 2+ /Co 3+ ratio, its most oxygen vacancy amount and its largest external surface area. Furthermore, the Co@S-1(EDA) zeolite catalyst exhibited excellent re-usability, maintaining its activity over five consecutive catalytic cycles. This study emphasizes ligand engineering as an effective approach to create highly efficient and stable cobalt-based zeolite catalysts for selective hydrocarbon oxidation reactions.
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Environmental Science-Nano
·
2026
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IF 5.1
Fengyang Jing,Shimeng Chang,Xingyu Zhang,Chen-Liang Zhou,Yao Weng,Xuewei Li,Hongmei Ye,Yuting Sun,Jiuyang Lin,Wenyuan Ye,Wenjing Yuan
In this study, double S-scheme heterojunctions were constructed by a simple hydrothermal and calcination method, accompanied by the special layered structure of BiOIO3 employed for its I- modification. This resulted in the formation of CeO2/[Bi6O6(OH)3](NO3)3·1.5H2O (BHN)/I--BiOIO3, which possesses double S-scheme heterojunctions. The improvement of photocatalytic degradation efficiency is derived from the result of the synergistic effect of double S-scheme heterojunctions and I- modification. In photocatalytic degradation experiment with norfloxacin as the target pollutant, the degradation efficiency of typical sample (CeO2/BHN/I--BiOIO3-2) reaches 97.50%, which is 9 times and 1.6 times than that of pure CeO2 and BHN/BiOIO3, respectively. Obviously, the CeO2/BHN/I--BiOIO3 double S-scheme heterojunctions significantly enhances its photocatalytic degradation ability of antibiotics in comparison to single-substance photocatalysts and simple two-phase composite. It is noteworthy that the CeO2/BHN/I--BiOIO3 double S-scheme heterojunctions are also capable of achieving a degradation rate of up to 70% for norfloxacin in river water. Furthermore, this double S-scheme heterojunctions demonstrate the degradation efficiencies of approximately 90% for quinolone antibiotics, including ofloxacin, enrofloxacin, ciprofloxacin, and norfloxacin. This research offers a novel approach to enhance the photocatalytic degradation of organic pollutants through double S-scheme heterojunctions and elemental modification.
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ACS Applied Materials & Interfaces
·
2026
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IF 7.8
Junfeng Song,Anming Yang,Yang Song,Xirui Huang,Xingjin Li,Tianzhao Xu,Tiancong Zhao
The treatment of Staphylococcus aureus subcutaneous abscesses is hindered by the protective abscess microenvironment and persistent bacterial colonization. Herein, we present a pH-responsive supramolecular nanoplatform fabricated via single-step coassembly of cationic arginine-derived antimicrobial peptidomimetics (AMPM-1) and natural polyphenols. This process, governed by hydrogen bonding, electrostatic interactions, and hydrophobic packing, effectively masks the cationic charges of AMPM-1, substantially reducing intrinsic hemolytic and cytotoxic properties. In vitro studies demonstrate that the assemblies maintain potent, membrane-disruptive activity against methicillin-resistant S. aureus (MRSA), including dormant and persister subpopulations. In a murine MRSA abscess model, local administration of the quercetin-based assemblies (AMPM-1-QA) simultaneously reduces bacterial burden and attenuates excessive inflammatory signaling. Histological examination confirms accelerated tissue regeneration, characterized by enhanced collagen deposition and anti-inflammatory macrophage polarization. By integrating acid-triggered bactericidal action with polyphenol-mediated immunomodulation, this dual-functional supramolecular strategy offers a promising approach for the stimuli-responsive treatment of recalcitrant localized infections.
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PubMed
高影响因子
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