RSC Advances
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2025
·Vol. 15
·期 48
·41148-41155
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IF 4.6
Xiangzhe Lin,Junlin Wang,Xu Tang,Manru Yang,Nairong Chen,Feng Li,Fengxiang Zhang
The safety risks of liquid electrolyte leakage in conventional batteries have prompted intensive research on solid electrolytes for enhanced safety and energy density. Here, we report a novel PVDF gel electrolyte (GE) by incorporating 2,5-dimercapto-1,3,4-thiadiazole (DMcT). By virtue of the active thiol groups (S–H), DMcT can function as a difunctional mediator to suppress the shuttle effect and accelerate the redox kinetics of Li–S batteries, thereby enabling boosted rate performances and enhanced cycling stability of Li–S batteries. At 1C, the Li–S battery retains 180.5 mA h g−1, outperforming control cells. At 0.5C, it exhibits an ultralow decay rate (0.13% per cycle) with 99% coulombic efficiency. This work presents a novel strategy to address the shuttle effect and improve the rate performance in gel electrolyte Li–S batteries, paving the way for safer high-energy battery systems.
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DALTON TRANSACTIONS
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2025
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IF 3.3
Yanhui Zhang,Jiajia Li,Yaqing Ding,Kaitong Liu,Xiaofeng Gu
The mixed-anionic compounds are attractive hunting grounds for probing optical crystals due to their interesting physiochemical properties. Herein, the first barium fluoroaluminophosphate, BaAlPO4F2, was synthesized by high temperature reactions in the closed system for the first time. In the structure, the PO4 group bonds with [Al2O6F5] dimers to form the unusual [Al2PO5F4]∞ 2D layers and the Ba2+ cations reside in the interlayer space. This paper discusses the flexibility and diversity of the assembly s
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Journal of Materials Chemistry A
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2025
·
IF 9.5
Ming Huang,Shunyan Ning,Juan Liu,Lifeng Chen,Mohammed F. Hamza,Yuezhou Wei
Ultra-high purity La2O3 (≥6 N, 99.9999%) with extremely low impurity elements is widely used in advanced optical and electrical fields and usually requires a complex purification process. In this study, a phosphonic acid functional resin (HEHEHP + TBP)/SiO2–P is prepared for the efficient removal of key impurity elements such as rare earth impurities, Fe, Th and U from La in a nitric acid medium. Batch experiments showed that in HNO3 solutions of pH ≥ 2, the removal efficiency of impurity ions by this resin was greater than 97%. The optimal separation factors (SFCe/La, SFPr/La, and SFNd/La) between light rare earths reached 7.55, 19.5, and 19.2, respectively. Advanced characterization confirmed the ion exchange and coordination mechanisms, involving the participation of the P–OH and PO groups. DFT calculations corroborated the higher affinity of the resin for U and heavy rare earth over light rare earth impurities. A process for the preparation of ultra-high purity La2O3 was proposed and verified by a continuous single column, achieving a purity increase from 99.995% to over 99.9999% with a purification ability of 180 mg La per g of resin and Th and U less than 0.05 ppm. It is worth noting that when the feed solution is only processed through a column filled with (HEHEHP + TBP)/SiO2–P (during the non-desorption step), a purified La(III) solution can be directly obtained, effectively adsorbing trace impurities. This process does not require the introduction of desorption agents, which reduces the economic cost. Compared with the multi-stage sequential purification method, it improves the production efficiency.
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DALTON TRANSACTIONS
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2025
·
IF 3.3
Yuan Xu,Ya-Tao Hu,Jiaping Cao,Dixin Lin,Qiqi Zhong,Yi Wang,Hongdong Shi,Qianling Zhang
To address the challenges associated with low cellular uptake efficiency of metal-based anticancer agents and the suboptimal therapeutic efficacy of photodynamic therapy (PDT), a series of polypyridyl ruthenium(II) complexes (Ru Cn) with tunable carbon chain lengths were rationally designed and synthesized through the incorporation of fatty acid moieties, which confer enhanced lipid solubility and membrane-targeting capabilities. Among these, the octadecanoic acid-modified ruthenium complex (Ru-C18) exhibited superior anticancer activity. Cytotoxicity assays demonstrated that Ru-C18 displayed sub-molar cytotoxic potency under light irradiation. Co-localization studies confirmed its preferential accumulation in lysosomes after cellular internalization. Upon light activation, Ru-C18 efficiently generated singlet oxygen and induced hallmark features of pyroptosis, including plasma membrane blebbing, cellular swelling, and Gasdermin-dependent membrane pore formation. Consequently, Ru-C18 significantly suppressed tumor cell proliferation via activation of the pyroptotic pathway. These findings offer new insights into the rational design of highly effective and selectively targeted photodynamic anticancer agents.
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NEW JOURNAL OF CHEMISTRY
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2025
·
IF 2.5
Na Wang,Xiaofei Ren,Hongyu Sun,Jinghua Zhao,Yang Lu
In this work, a variety of CuO architectures, including cubes, truncated cubes, cubooctahedrons, truncated octahedrons, and octahedrons were achieved using Cu2O nanocrystals as a sacrificial template. In the gas sensitivity test, the CuO nanocrystals with different shapes were tested for specific gases, such as monohydric alcohols, including methanol, ethanol, n-propanol, n-butanol, n-pentanol, and n-hexanol, belonging to the class of straight-chain alcohols (C1–C6). An interesting phenomenon could be observed where the gas response of the CuO sensors increased as the number of carbon atoms increased. However, when the number of carbon atoms was C5 (n-pentanol), the response values of CuO sensors reached the maximum. In these CuO architectures, the CuO-truncated octahedron-2 sensor and the CuO-octahedron sensor exhibited better performance than alcohols. The CuO-octahedron sensor exhibited the best sensitivity and selectivity to n-pentanol gas and possessed good long-time stability. In addition, the response and recovery times of the CuO-octahedron sensor to 100 ppm n-pentanol gas are 8 s and 16 s, respectively. In addition, the gas sensing mechanism of a CuO-truncated octahedron-2 sensor for n-pentanol was explored through theoretical calculations. Compared with the adsorption energy, the dissociation adsorption energy plays a more important role in the response of monobasic alcohol molecules on the (110) crystal surface of CuO.
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ANALYST
·
2025
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IF 3.3
Ziwei Liu,Zhimei Qi,Xiumei Wan,Hongyi Tang
Nondestructive measurement of film thickness (d) and porosity (P) is crucial for the rational design, controllable synthesis and accurate characterization of multifunctional nanoporous thin films (NPTFs). In this work, the d and P of dielectric NPTFs were measured simultaneously by using a new algorithm to process the experimental data obtained by broadband surface plasmon resonance or plasmon waveguide resonance (SPR/PWR) spectroscopy. The NPTF under test is coated on the pristine gold surface of a SPR sensor chip, which enhances the interaction of light with the NPTF and makes the resonance wavelength highly sensitive to both d and P of the NPTF.The measurements are implemented in three steps: (1) to measure two resonance spectra of a NPTF at different angles of incidence or different surrounding media or different polarizations; (2) to create two d versus P curves by fitting each measured spectrum with a combination of Fresnel and Brueggemann equations; (3) to achieve d and P of the NPTF by solving the intersection of the two d-P curves. It is worth emphasizing that if the NPTF is a multimode waveguide layer, its thickness and porosity can be simply derived by fitting the two widely separated resonance peaks in the measured single PWR spectrum. Six NPTFs, including four TiO 2 films and two SiO 2 films, were characterized according to the above steps. The measured results show good agreement with those obtained by other existing techniques, verifying that the method proposed in this work is accurate and reliable.
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Analytical Methods
·
2025
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IF 2.6
Dongju Liu,Kunlan Diao,Yu Xue,Daohai Zhang
To efficiently treat dyeing wastewater, this study adopted an innovative method to prepare MXene nanocomposite nanofiltration membranes, with a focus on investigating the performance of the PVDF/EAA/MXene nanofiltration (C-3) composite membrane treated via interfacial polymerization. The results indicated that the C-3 membrane possesses both excellent surface properties and separation performance: its pure water permeability reaches 27.36 L m−2 h−1, the rejection rate for bovine serum albumin (BSA) is 94.23%, and the rejection rates for Congo red and methylene blue dyes are as high as 99.43% and 99.81%, respectively. Meanwhile, the membrane exhibits outstanding anti-fouling capability, with a flux recovery rate (FRR) of 88.5% and a total fouling rate (DRt) of 19.21%. Furthermore, long-term stability tests (conducted 10 times repeatedly over 10 days) showed that the membrane demonstrates excellent filtration performance and stability in retaining BSA, Congo red, and methylene blue.
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RSC Advances
·
2025
·Vol. 15
·期 48
·40789-40800
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IF 4.6
Wei Zhang,Min Liu,Honghui Cheng,Jiafeng Di,Geng Huang,Hua Lai
The application of reactive macromolecular flame retardants in polymers is gaining increasing attention. In this study, the polymer PBOZ-DOPO was readily synthesized via nucleophilic addition between 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and a main-chain benzoxazine polymer (PBOZ). It was utilized as both a co-curing agent and polymeric flame retardant for epoxy resin, yielding epoxy thermosets designated as Pn, where n represented the phosphorus content in the cured polymers (n wt%). While all epoxy thermosets retained good transparency, the addition of PBOZ-DOPO reduced thermal stability, as indicated by thermogravimetric analysis (TGA) and dynamic mechanical analysis (DMA). Fortunately, the macromolecular structure and the presence of active OH groups in PBOZ-DOPO helped alleviate the decline in glass transition temperature (Tg). When the phosphorus content was below 0.5 wt%, the Tg loss was less than 10 °C. PBOZ-DOPO imparted highly efficient flame retardancy to the epoxy resin. With a phosphorus content of only 0.3 wt%, the epoxy thermoset P3 achieved a limiting oxygen index (LOI) of 34.1% and met the vertical burning (UL-94) V-0 rating. Cone calorimetry tests demonstrated a progressive decrease in heat release rate (HRR), total heat release (THR), and total smoke production (TSP) from P0 to P5. Scanning electron microscopy (SEM) and Raman spectroscopy further revealed that the amount of graphitized carbon layers formed during combustion increased consistently from P0 to P5, supporting the enhanced flame-retardant performance. Tensile tests indicated that the incorporation of PBOZ-DOPO did not significantly compromise tensile strength or elongation at break, particularly in the case of P3. Overall, the results confirmed that PBOZ-DOPO was an excellent flame retardant with well-balanced properties for epoxy resin.
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Materials Horizons
·
2025
·
IF 10.7
Ping Guo,Jie Zhou,Chengnan Qian,Wenjie Cao,Yang Yu,Lin Cheng,Daoyou Guo,Huaping Wu,Aiping Liu
Conductive hydrogels are promising materials for advanced applications in artificial muscles, biomimetic soft robotics, and wearable electronics. However, the simultaneous realization of rapid reversible actuation, superior mechanical robustness, and high-resolution multimodal sensing remains a formidable challenge. Herein, we present a multifunctional hydrogel based on thermos-responsive poly(Nisopropylacrylamide) (PNIPAM), reinforced via acrylamide (AM) copolymerization and polyvinyl alcohol (PVA) network integration, which synergistically enhance mechanical strength and toughness. The incorporation of MXene nanosheets endows the hydrogel with stable, repeatable, and ultrasensitive piezoresistive sensing performance. Moreover, the hydrogel exhibits excellent photothermal actuation under near-infrared (NIR) irradiation, enabling remote, light-actuation deformation coupled with real-time self-sensing. To enrich its sensing modalities, a piezoelectric composite layer composed of poly(vinylidene fluoride-trifluoroethylene) and barium titanate [P(VDF-TrFE)/BTO] is integrated, allowing simultaneous detection of strain amplitude, movement direction, and velocity. As a proof of concept, a biomimetic octopus predation system was constructed, showcasing the potential of this integrated actuator-sensor platform for intelligent soft robotic systems.
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Journal of Materials Chemistry C
·
2025
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IF 5.1
Ji Qi,Pibin Bing,Lanju Liang,Xin Yan,Haiyun Yao,Zhenhua Li,Ziqun Wang,Zhongyang Li,Qing Liu,Guifang Wu
Trace biological solution detection is currently of great interest in the terahertz (THz) field. Graphene oxide (GO) is an amphiphilic graphene-like material with favorable biocompatibility, showing good potential applicability in THz liquid detection. In this work, a GO enhanced THz metamaterial liquid biosensor with a polyimide capillary as the microfluidic channel is proposed. The experimental results reveal that the capillary structure can avoid the large absorption of THz waves by controlling the amount of water. In the biosensor, GO is demonstrated to play an important role in enhancing the THz response, improving surface adsorption, and facilitating signal transmission. It is able to enhance the immobilization of D-Asp, which was confirmed by both Raman spectra and XRD scans, thus resulting in the structural changes of GO. The transmission amplitude variation of THz waves indicates that the electromagnetic response of GO varies with the adsorbed D-Asp concentration. The proposed biosensor achieves an ultra-low detection limit of 3 pg mL−1 and a maximum transmission change of about 12.5%. Thus, with their robust resistance to water interference and outstanding detection performance, the proposed biosensors show potential advantages for the expanded application of THz metamaterials in the ultra-sensitive detection of trace biological samples in liquid environments.
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ANALYST
·
2025
·
IF 3.3
Xu-Fei Sun,Yuqi Luo,Xunan Dong,Hu Luo,Ke-Jing Huang
The rapid and reliable quantitative detection of biological targets encounters challenges such as limited driving forces in reactions, low overall strand utilization, and the synthetic complexity of multi-modal materials. To address these issues, the design concept “entropy–enthalpy coupling with dual-mode decoupling” is introduced for the first time. Using miRNA-21 as a model analyte, an entropy–enthalpy co-driven decoupled dual-mode biosensor was developed by integrating independent photoelectrochemical (PEC) and fluorescent (FL) modules to assess its feasibility. Specifically, an output strand was designed within a three-stranded substrate/output complex, in which the terminal bases form hairpin structures through complementary pairing. This configuration enables the establishment of an entropy–enthalpy coupling driving force—increased entropy for the substrate strand and decreased enthalpy for the output strand—during cyclic amplification reactions. Additionally, by conjugating the substrate, fuel and output strands separately to magnetic beads, photosensitive materials, and fluorophores, complete decoupling of the PEC and FL modes was achieved, allowing independent PEC and FL signal outputs. In the developed biosensor, the device demonstrated well-defined linear correlation for PEC and FL within the 10 aM to 10 nM range, and the detection limits for miRNA-21 were established at 4.2 aM (PEC) and 5.3 aM (FL). Experimental results demonstrated the substantial potential of the “entropy–enthalpy coupling with dual-mode decoupling” framework for rapid and reliable quantitative detection of biological targets, while also providing new design paradigms for sensors in fields such as food safety and agriculture.
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ANALYST
·
2025
·
IF 3.3
Feng Yang,Congying Ding,Zihui Chen,Guoqing Zhao,Lamei Zhou,Wanqing Yue
In this study, V-doped V-Ti3C2 was synthesized via a simple one-step hydrothermal method. The results demonstrated that the surface of the lamellar V-Ti3C2 structure, abundant in hydrophilic functional groups and reactive active sites, exhibited outstanding peroxidase-like activity with a Vmax 12.8 times higher than that of HPR. In this study, we employed the doped modified V-Ti3C2 with rich functional groups to efficiently adsorb organic dyes in aqueous environment. Subsequently, we conducted the degradation of the dyes and the selective detection of ferric ions in wastewater using its peroxidase-like activity. The combination of the two processes leverages the different characteristics of V-Ti3C2, which provide a versatile and efficient solution to the challenges posed by water pollution. Notably, the excellent adsorption characteristics and catalytic properties of V-Ti3C2 highlight the capability of nanozymes for extensive applications in addressing water pollution challenges.
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