JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
·
2025
·Vol. 150
·期 17
·13775-13790
·
IF 3.1
Song Lingjun,Xia Yongpeng,Wang Yitong,Hu Haopan,He Yuting,Li Bin,Sun Lixian,Sun Yujia,Xu Fen
The development of multifunctional, environmentally friendly, and energy-efficient composite phase change materials (CPCMs) is crucial for improving energy recovery and utilization in various applications and environments. Herein, we utilized the salt template method, assisted by polyvinylidene fluoride (PVDF), to design a novel three-dimensional porous carbon network based on expanded graphite (EG) and loaded with reduced graphene oxide (rGO) as an enhancing bridge. The resulting interconnected and dense three-dimensional porous carrier was employed for the melt encapsulation of octadecane (OD). DSC analysis revealed that the prepared CPCMs possess an excellent heat storage density of 168.93 J g −1 and a thermal storage capacity of > 99.9%. Notably, the continuous three-dimensional carbon network of EG and rGO in the CPCMs, with strong full-spectrum absorption and rapid photon and phonon transmission, led to a synergistic enhancement. The thermal conductivity of OD@6EG/PVDF/rGO reached 6.3840 W m −1 K −1 , surpassing that of most carbon-based CPCMs. The composite material exhibited a photo-thermal conversion efficiency of 96.3% and an electro-thermal conversion efficiency of 74.4%, enabling the stable operation of a self-assembled photo-thermal-electric energy conversion system. After 200 heating–cooling cycles, the CPCMs demonstrated significant thermal and shape stability. Moreover, OD@EG/PVDF/rGO possessed self-cleaning and microwave absorption properties, expanding its potential for multifunctional applications. This study lays the foundation for the application of carbon-based materials in thermal management and energy conversion technology. Graphical
✓ 已验证
产品关联
DOI
高影响因子
Journal of Superconductivity and Novel Magnetism
·
2025
·Vol. 38
·期 2
·112
·
IF 1.7
Li Xiaofeng,Gao Yuxia,Tian Zhaoming,Ren Weijie,Sun Xin,Wang Mingli
KNi(PO 3 ) 3 was successfully synthesized by solid-state method and the magnetic properties were characterized. The crystal structure of KNi(PO 3 ) 3 belongs to trigonal crystal system with space group R 3, where Ni 2+ ions form the distorted honeycomb-lattice within the ab-plane stacking in the “ABAB” type fashion along the c -axis. Magnetization measurements reveal the presence of antiferromagnetic (AFM) interaction with Curie Weiss (CW) temperature θ CW = − 12.905 K but without long-range magnetic order down to 2 K. Notably, the CW fitted effective moment µ eff = 3.35µ B and saturated magnetization M S = 2 μ B /Ni 2+ at 2 K support KNi(PO 3 ) 3 as an S = 1 spin system. Intriguingly, the zero-field specific heat exhibits a broad peak maximized at ~ 2.5 K indicating the onset of short-range spin correlation between Ni 2+ ions, while the integrated magnetic entropy ( S mag ) is close to the expected Rln3 for S = 1 system, indicative of large spin fluctuation below 2 K driven by spin frustration.
✓ 已验证
产品关联
DOI
高影响因子
RARE METALS
·
2025
·
IF 11
Dong Fei-Long,Liu Zhen-Hua,Jiang Ying,Liang Zhe,Chu Xu,Ma Chun-Hui,Sun Hao,Xie Hai-Ming
TiNb 2 O 7 (TNO) is regarded as a potential fast-charging anode for lithium-ion batteries due to its fast reversible phase transition and safe working potential, but it suffers from unsatisfactory electronic conductivity, sluggish ion kinetics, and poor structural stability under high rates. Herein, tantalum (Ta) with strong Ta–O bonds is doped into TNO to enhance its fast-charging property and structural stability. Proper amount of Ta doping not only increases the interlayer spacing for fast Li + transport, but also improves the electrical conductivity, being successfully proved by experimental analyses. Density functional theory (DFT) calculation verifies that the lattice distortion induced by the incorporation of strong Ta-O bonds can effectively strengthen the structural stability. Notably, in situ X-ray diffraction (XRD) technology reveals that Ta doping relieves volumetric strain during lithiation and de-lithiation. Thus, the optimized Ta 0.1 -TNO sample owns impressive long-term cycling stability even at a high current density of 10C, which delivers a high-capacity retention of 85.12% (a capacity decay of less than 0.01% per cycle) after 1500 cycles. This work provides a fast-charging anode material with superior structural stability for lithium-ion batteries. Graphical abstract
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2025
·
IF 2.6
Huang Xiaoyu,Zhang Yaowen,Yang Jian,Xiao Zhizhong,Lu Huidan,Liu Yongping
The synergistic modulation of both the surface electronic configuration and micromorphology of the catalyst is crucial for its electrochemical hydrogen evolution activity. This research successfully developed an efficient Ru-WS 2 NS/CC electrocatalyst for the hydrogen evolution reaction (HER) using a simple two-step strategy involving a solvothermal reaction followed by chemical vapor deposition. The catalyst exhibits excellent electrocatalytic activity and remarkable stability in acidic electrolyte, demonstrating an overpotential of 128.8 mV (at 10 mA cm − 2 ), a Tafel slope of 58.7 mV dec − 1 , and a low charge transfer resistance of only 3.8 Ω, while maintaining high catalytic activity for at least 24 h under acidic conditions. The enhanced HER performance of the Ru-WS 2 NS/CC catalyst is attributed to two main factors: first, the strong electronic interaction induced by Ru doping, which improves the intrinsic electrocatalytic activity; second, the uniform and thin nanosheet morphology of WS 2 provides a highly developed surface area that facilitates hydrogen adsorption and desorption. Density functional theory (DFT) simulations further indicate that introducing Ruthenium (Ru) dopants substantially lowers the Gibbs free energy (ΔG H* ) associated with hydrogen adsorption on the catalyst. Analysis of charge density differences corroborates that such doping strategy efficiently tailors the electronic configuration of the WS 2 support, thereby optimizing its interfacial characteristics. This work proposes an effective electronic structure modulation strategy for developing three-dimensional materials into high-efficiency hydrogen evolution electrocatalysts.
✓ 已验证
产品关联
DOI
高影响因子
Food Analytical Methods
·
2025
·Vol. 19
·期 1
·30
·
IF 3
Yin Yitong,Wang Xin,Hao Huihui,Zhao Xiaolei,He Jinxing
A core–shell structured magnetic molecularly imprinted nanoparticle (MMINP) was developed, capable of forming a photonic crystal (PC) sensor in the presence of a magnetic field for the detection of sulfamethazine (SM2) residues in food. The preparation conditions were meticulously optimized, and the adsorption performance of MMINPs was comprehensively characterized through Adsorption Kinetics Experiments and Equilibrium Binding Experiments. As the concentration of SM2 varied, the structural colors were systematically characterized under a designated magnetic field strength. The experiments revealed that within the range of SM2 concentrations from 10 −1 μg/L to 10 3 μg/L, there was a shift in the reflected wavelength from 570 to 610 nm, and the color changed from green to red–orange. The sensor achieved a minimum detection limit of 2.75 μg/L, a maximum adsorption capacity of 3.86 mg/g, an imprint factor of 1.70, and was reused for at least five adsorption-resolution cycles. The recoveries ranged from 69.97% to 102.68% and RSD < 8.73%. The sensor introduces an innovative approach for the rapid visual colorimetric detection of SM2 in complex food matrices.
✓ 已验证
产品关联
DOI
高影响因子
ARCHIVES OF MICROBIOLOGY
·
2025
·Vol. 208
·期 1
·1
·
IF 2.6
Zhong Huichang,Chen Liyi,Liu Weifeng,Tao Yong
Xanthophyllomyces dendrorhous (anamorph form Phaffia rhodozyma ) is a key microbial host for industrial astaxanthin production, where yield depends on both the efficiency of the biosynthetic pathway and overall metabolic robustness. To develop superior industrial strains, we established an efficient evolutionary-enrichment system and an accelerated evolutionary workflow that couples astaxanthin production with cell growth under optimized oxidative stress conditions. This strategy enabled the enrichment of mutants exhibiting both high astaxanthin production and strong industrial fitness. Using this approach, we employed a high astaxanthin-producing X. dendrorhous strain A06 as the parental strain for evolution. After several rounds of screening over 2,000 colonies, we successfully identified the top-performing mutant, TP-4. TP-4 demonstrated a stable 20% increase in astaxanthin production relative to the parental strain, along with faster growth and enhanced fermentation performance. The genome of TP-4 was sequenced, and comparative genomic analysis against the parent strain A06 and a low-astaxanthin-producing control strain, C01, revealed multiple mutations potentially underlying its superior phenotype. These findings provide new insights into the metabolic and genetic basis of astaxanthin overproduction. This work establishes an efficient evolutionary platform for strain improvement and provides a mechanistic understanding of astaxanthin overproduction in X. dendrorhous , laying the groundwork for further optimization and industrial-scale application.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROCHIMICA ACTA
·
2025
·Vol. 193
·期 1
·51
·
IF 5.3
Li Xiaoqing,Bao Chengqi,Shao Rong,Deng Lei,Zheng Wei,Yang Minghui
An innovative organic-inorganic heterojunction based on meso -tetra(4-carboxyphenyl)-porphine (TCPP) and CsPbBr 3 perovskite is reported. Additionally, cobalt nitride (Co 4 N) was employed as mimetic enzyme of lactic acid oxidase (LOX), thereby enabling sensitive detection of lactic acid in serum through photoelectrochemical (PEC) detection. The stability of CsPbBr 3 was significantly improved in aqueous solutions by substituting some of the long-chain ligands on its surface with TCPP, an organic semiconductor containing π-π bonds and carboxyl groups. Furthermore, the formation of a type-II heterojunction between TCPP and perovskite improved carrier separation and transport capabilities, resulting in more stable and enhanced photocurrent response. The non-enzymatic catalyst, Co 4 N nanoparticles, demonstrate efficient catalytic activity toward lactic acid oxidation and enhance electron transfer to the heterojunction interface, thereby increasing the response current. The prepared PEC biosensor exhibits an effective sensing capability for lactic acid, with a working range of 0.2 mM to 10 mM and a detection limit of 0.03 mM. Furthermore, the biosensor features good selectivity and reproducibility, making it ideal for measuring lactic acid levels in human blood samples. This approach of forming heterojunctions by combining organic semiconductor materials with perovskites opens up new possibilities for constructing advanced perovskite-based photoelectric sensors.
Section
Graphical abstract
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
·
2025
·Vol. 23
·期 1
·1-20
·
IF 12.6
Gao Qian,Hu Fangfang,Chai Zihan,Zheng Caiyun,Zhang Wenhui,Pu Ke,Yang Ziyi,Zhang Yanni,Ramrkrishna Seeram,Wu Xianglong,Lu Tingli
Background Diabetic wound infections, exacerbated by multidrug-resistant pathogens like MRSA, remain a critical challenge due to biofilm persistence and dysregulated oxidative-inflammatory-metabolic crosstalk. Results In this work, we engineered COG-Z@P200 hydrogel, a chitosan-based hydrogel integrating polydopamine-coated ZIF-8 nanoparticles, to synergize mild photothermal therapy (40–45 °C) with metabolic-immune reprogramming. Upon NIR irradiation, COG-Z@P200 disrupted MRSA through Zn 2 ⁺-mediated membrane destabilization and localized hyperthermia, achieving >99.5% eradication via combined physical puncture and metabolic interference. Multi-omics analyses revealed suppression of glycolysis (eno, gap downregulation), TCA cycle arrested (s ucC, sdhA, icd inhibition), and disruption of arginine biosynthesis ( arcA , arcC , arcD downregulation), impairing biofilm formation and pathogenicity. Concurrent silencing of quorum sensing and virulence genes ( agr, sec, lac, opp, sdrD ) further destabilized MRSA, while upregulation of stress-response genes ( yidD, nfsA, kdpA ) indicated bacterial metabolic paralysis. In diabetic murine models, the hydrogel attenuated oxidative stress (DHE-confirmed ROS reduction), polarized macrophages to pro-healing M2 phenotypes (Arg-1⁺/TNF-α↓), and enhanced angiogenesis (VEGF/CD31↑) alongside aligned collagen deposition. This multifunctional action accelerated wound closure by 48% versus controls, outperforming clinical standards. By converging nanomaterial-enabled bactericidal strategies with host microenvironment recalibration, COG-Z@P200 hydrogel redefined diabetic wound management, offering an antibiotic-free solution against multidrug-resistant infections. Conclusion Our work established a biomaterial paradigm that concurrently targets pathogen vulnerabilities and restores tissue homeostasis, addressing the multidimensional complexity of chronic wounds. Graphical abstract
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Carbon Letters
·
2025
·
IF 5.8
Du Xue,Han Tong,Jin Biao,Meng Long-Yue,Han Lian-Hua
Contamination of food with heavy metal ions and nitrites poses a serious threat to human health. Consequently, the development of fast and sensitive platforms for detecting these contaminants is urgently required. In this paper, a novel MnMgFe-LDHs/DC sensor is constructed based on a simple strategy, in which MnMgFe layered double hydroxide (LDHs) is used as a metal precursor, and a unique "island bridge" carbon network structure is generated by its pyrolysis with ZIF-8@B, N-WMCNTs. The electrical conductivity was enhanced, and a large electroactive surface area was provided for the MnMgFe-LDHs/DC. The electrochemical properties of Pb 2+ , Cd 2+ and nitrite were investigated using this electrode as a working electrode. Under optimized conditions, the sensing platform exhibited a wide linear range with the Pb 2+ , Cd 2+ , and NO 2 − limits of detection of 46.16 nM, 59.25 nM, and 0.083 μM, respectively. Of particular note is that this sensing platform exhibits outstanding anti-interference capabilities. It can precisely and efficiently conduct the detection of nitrite and heavy metal ions in pickled foods.
✓ 已验证
DOI
高影响因子
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
·
2025
·
IF 3.3
Yu Xiaohong,Zhang Ya,Wang Xianhao,Luo Yutong,Shao Shuai,Qiu Zhongyang
Organic acid pretreatment is one of the most promising methods to pretreat lignocellulose biomass due to its mild condition and weak corrosion to reactor. In this study, five different organic acids were used for wheat bran pretreatment, and the enzymatic hydrolysis yields of pretreated feedstocks were evaluated. Among these organic acids, oxalic acid pretreatment demonstrated the highest glucose yield of 87.93%. Subsequently, the optimization of oxalic acid pretreatment parameters was conducted including temperature, time, solid–liquid ratio, and acid usage. A high glucose yield of 96.92% was obtained at the optimal conditions: 0.8% of oxalic acid usage, 1:10 of solid–liquid ratio, and 130 ℃ for 15 min. FTIR, XRD and SEM revealed the mechanism of improved hydrolysis efficiency after oxalic acid pretreatment. Finally, the pretreated wheat bran was used for separate hydrolysis and ethanol fermentation (SHF) at 20% (w/w) solids loading. After 36 h, 23.87 g/L ethanol was produced by Saccharomyces cerevisiae DQ1 with all glucose consumed, with the yield of 0.12 g/g dry virgin wheat bran. This study provided a new insight into wheat bran pretreatment for biofuel production by a mild oxalic acid pretreatment method.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF POLYMERS AND THE ENVIRONMENT
·
2025
·
IF 5
Yang Yi-jie,Dou Qiang
Two bio-based plasticizers derived from castor oil: raw butyl ricinoleate (RBR) and castor oil glycidyl ether (COGE) were used to plasticize polylactic acid (PLA) by one-step melt blending method. Compatibility analyses revealed that the generation of the branched products between epoxide groups of COGE and carboxyl groups of residual ricinoleic acid (RA) in the RBR and PLA improved the compatibility of the blends. The blends were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), rheology, thermogravimetry (TG), differential scanning calorimetry (DSC), polarized light microscopy (PLM), contact angle measurement and tensile test. The results showed that COGE could act as a compatibilizer and interact with carboxyl groups in RBR and PLA, significantly improving the interfacial compatibility, thermal stability and ductility of the blends. The generation of the entanglements among the molecular chains weakened the crystallization capacity of the ternary blends. The extension of molecular chains and entanglement of branched chains also increased the viscosity of the blends. Thanks to the synergistic application of RBR and COGE, the strain at break of PLA/RBR/COGE (85/3.75/11.25) blends reached 146%, which was 14.9 times larger than that of pure PLA. These blends presented excellent mechanical performance and processing ability, and thus have application scenarios in biodegradable packages and articles. Graphical
✓ 已验证
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-9
·
IF 15.7
Dong Anrui,Lin Gaoxin,Li Zhiheng,Wu Wen,Cao Xing,Li Wenlong,Wang Linqin,Zhao Yilong,Chen Dexin,Sun Licheng
The mechanical stability of the catalytic electrodes used for hydrogen evolution reactions (HER) is crucial for their industrial applications in anion exchange membrane water electrolysis (AEM-WE). This study develops a corrosion strategy to construct a self-supported electrocatalyst (Int-Ni/MoO 2 ) with high mechanical stability by anchoring the Ni/MoO 2 catalytic layer with a dense interlayer of MoO 2 nanoparticles. The Int-Ni/MoO 2 exhibits a strengthened homostructural interface between the interlayer and catalytic layer, preventing the detachment of the catalyst during ultrasonic treatment. The blade-shaped catalytic layer reduces bubble shock and potential fluctuations at high current densities up to −6000 mA cm −2 . As a result, the Int-Ni/MoO 2 electrode exhibits a low overpotential of 73.2 ± 14.2 mV and long-term stability for 6000 h at −1000 mA cm −2 in a 1 M KOH solution. The Int-Ni/MoO 2 assembled AEM-WE device demonstrates long-term stability at 1000 mA cm −2 for 1000 h with a very low degradation rate of 3.96 µV h −1 .
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）