EUROPEAN POLYMER JOURNAL
·
2026
·
IF 6.8
Anjia Zheng,Zitao Yang,Zhongte Pei,Jiaming Zhang,Chuanxi Wang,Qianyu Wang,Cancan Zhang,Rui Hu,Bin Zhang,Qiaoling Liu,Feng Jiang
As the most abundant aromatic biomass resource in nature, lignin exhibits excellent ultraviolet (UV) absorption, photothermal conversion, and antioxidant properties. However, its complex structure and poor processability limit its application in flexible functional materials. In this work, a series of lignin- graft -poly(acrylamide- co - n -butyl acrylate) (Lignin- g -P(AM- co -BA)) copolymers was designed and synthesized by homogeneous reversible addition-fragmentation chain transfer (RAFT) polymerization. These Lignin- g -P(AM- co -BA) copolymers show tunable glass transition temperatures ranging from −21.9 to 51.2 °C and adjustable tensile strength values from 0.24 to 20.2 MPa by manipulating the PAM and lignin contents. Benefiting from the efficient light absorption and non-radiative relaxation processes of the aromatic conjugated structure of lignin, the lignin-based elastomers possess outstanding UV-shielding performance and extraordinary photothermal conversion ability. Furthermore, these Lignin- g -P(AM- co -BA) copolymer films can be integrated as a photothermal layer into thermoelectric power generation (TEG) devices to construct a flexible photothermal power generation system. Overall, this study provides a new strategy for the high-value utilization of lignin, and the developed lignin graft copolymers show great application potential in smart devices.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2026
·
IF 16.8
Huali Li,Xinbo Zhao,Liuqin Zhang,Wenkai Cao,Minghua Qu,Guangyu Zhu,Faqian Liu,Weihua Li
Self-renewing hydration interfaces are engineered via bioinspired hierarchical silicone coatings (PIS-MH x ). • Dynamic chitosan–catechol networks and microstructured surfaces enable sustained lubrication and interfacial stability. • Strong interfacial adhesion and up to ∼85% suppression of corrosion propagation are achieved. • Near-complete inhibition of mussel, barnacle, and tubeworm attachment is demonstrated in long-term marine tests. Marine biofouling and corrosion severely compromise the long-term reliability of ships and submerged infrastructures. Conventional silicone coatings, limited by static interfacial properties and weak adhesion, are prone to biofouling during prolonged marine exposure, as well as crevice corrosion and expansion caused by interfacial debonding. Here, a bioinspired silicone-hydrogel coating is proposed that synergistically integrates frog-skin-like hydrated microtextures with mussel-inspired, catechol-mediated adhesion to enable robust, multiscale interfacial regulation. Upon seawater immersion, the hydrogel component establishes a stable bound-water layer and enables pH-responsive, on-demand release of antifouling ions. Meanwhile, hierarchical micro-wrinkled architectures reduce effective adhesion sites, stabilize interfacial hydration layer, and promote localized enrichment of antifouling ions, thereby enhancing surface performance. The catechol-coordinated interface improves adhesion strength of the coating, efficiently suppressing corrosive ions permeation, and reducing corrosion-diffusion areas by approximately 85%. Density functional theory calculations, molecular dynamics simulations, and confocal laser scanning microscope results further reveal the formation of a dynamic and self-renewable hydration layer under continuous immersion. Field deployment for nearly five months demonstrates near-complete inhibition of barnacles and tubeworms attachment (∼100%). This dual-channel strategy, combining microstructural modulation with adaptive chemical adhesion, overcomes two critical issues of antifouling and interface stability of silicone coatings, offering an effective solution for durable antifouling and corrosion protection of marine infrastructure. A bioinspired silicone–hydrogel coating (PIS-MH x ) integrates frog-skin hydration microtextures and mussel-inspired catechol adhesion to construct a multiscale coupled interface. The coating establishes a stable hydration layer, suppresses corrosion diffusion by up to ∼85%, and achieves excellent antifouling over five months of marine field immersion, providing an effective solution for durable antifouling and anticorrosion protection of marine infrastructure. Frog-skin- and mussel-inspired hierarchical silicone coatings with self-renewing hydration for durable marine antifouling and anticorrosion Download: Download high-res image (318KB) Download: Download full-size image .
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Jia Yu,Kaiqiang Xu,Sheng Han
Developing efficient, cost-effective, and durable oxygen reduction reaction (ORR) catalysts to accelerate the sluggish kinetics, is crucial for emerging alkaline fuel cell technologies such as direct ammonia borane fuel cells (DABFCs). Herein, a bimetallic metal–organic framework (MOF)-derived Co-N x /NC catalyst with highly dispersed Co-N x nanoclusters embedded in an N-doped carbon framework is synthesized for enhanced ORR performance. The Co-N x /NC catalyst displays a half-wave potential of 0.86 V vs. RHE in 0.1 M KOH and excellent stability with 99.2% current retention at 0.67 V vs. RHE for 20000 s. When applied in a DABFC single cell, it achieves a peak power density of 33 mW cm −2 at 298 K under low fuel and electrolyte concentrations (1.0 M KOH + 0.1 M AB). Structural characterization and electrochemical analyses suggest that the enhanced ORR activity and stability are associated with highly dispersed Co-N x nanoclusters and pyridinic-N species. This work highlights a bimetallic MOF precursor strategy for developing high-performance ORR catalysts for alkaline fuel cells.
✓ 已验证
产品关联
DOI
高影响因子
EUROPEAN JOURNAL OF MEDICAL RESEARCH
·
2025
·Vol. 30
·期 1
·1-11
·
IF 3.4
Zhang Zihao,Ren Jiayi,Tang Ke,Hu Xinyi,Liu Jinhui,Li Chunming
Background Oral cancer (OC) is one of the major types of cancer and the most common cause of cancer-related mortality in Asia. In recent years, matrix stiffness in the tumor microenvironment has been found to play an important role in regulating tumor cell behavior. However, the regulatory mechanisms associated with matrix stiffness in OC cells remain unclear. Methods In this study, polyacrylamide gels with different stiffness were prepared to simulate low versus high matrix stiffness environments in tumor tissues by adjusting the acrylamide and cross-linker concentrations. Subsequently, the effects of different stiffness on OC cell survival, migration, invasion and invadopodia formation were explored based on cell counting kit-8 (CCK-8), Transwell and confocal microscopy. Meanwhile, the levels of markers relevant to phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT), apoptosis (BAX and BCL2) as well as metastasis (Cadherin-1, CDH1; Cadherin-2, and CDH2) were calculated via western blotting and real-time quantitative PCR. Results According to the results, high matrix stiffness was seen to contribute to the increased number of migrated and invaded cells as well as the enhanced viability of OC cells, along with the aggravated invadopodia formation and the up-regulation in CDH2 and BCL2 levels yet the down-regulation in CDH1 and BAX levels. Elevated PI3K/AKT phosphorylation levels were also seen in high matrix stiffness-mediated OC cells, and the intervention using LY294002 could visibly overturned the effects of high matrix stiffness on the cell migration, invasion and invadopodia formation of OC cells. Conclusions This study reveals that matrix stiffness may enhance the invasiveness and anti-apoptotic ability of OC cells by activating the PI3K/AKT pathway, which provides a new idea for exploring the microenvironmental regulation of tumor mechanics and targeted intervention strategies.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Hongjiang Peng,Yanyu Song,Gongjie Hua,Jinhong Wu,Fuwen Liu,Kuangfei Lin,Cong Lu
Peroxymonosulfate (PMS) activation through non-radical pathways exhibits high efficiency and selectivity for pollutant degradation. However, the complex regulation of catalytic active centers makes the generation of 1 O 2 challenging. In this work, Beta zeolite with uniformly dispersed Al-Ov-Co active sites (Co-Beta zeolite) was synthesized via a simple impregnation method, which exhibits excellent 1 O 2 steady-state generation concentration (2.46 × 10 −11 M) at extremely low doses (0.05 g/L). Compared with the original Co 3 O 4 , Co-Beta zeolite displays significantly enhanced PMS activation efficiency, and the apparent reaction rate constant for degrading tetracycline hydrochloride (CTC) increases by 4.7 times. Pyridine infrared characterization confirms that cobalt ions occupy the Brønsted acid sites of the Beta zeolite and undergo proton exchange with them. Accompanied by the redistribution of electrons during the calcination process, some lattice oxygen in the material is removed to form Al-Ov-Co sites. The proportion of Co 2+ in the Al-Ov-Co sites dramatically increases, thereby ensuring efficient activation of PMS. As PMS is adsorbed onto the Al-Ov-Co sites, the H atom of PMS directly bonds with the O atom in Co-Beta zeolite, while the O atom in PMS forms a bond with Co 2+ . After the H O and S O bonds of PMS are broken, abundant 1 O 2 is produced. In practical application evaluation, Co-Beta zeolite shows satisfactory anti-interference ability, reliable cycling stability and acceptable metal leaching. This work inspires the design of highly-dispersed Co 2+ to promote non-radical pathways for PMS-activated water purification.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-16
·
IF 15.7
Liu Ya,Yang Jiajia,Wang Yuxian,Zhu Wanli,Hu Kunsheng,Liu Zhang,Yeung Kinglun,Zhu Zhong-Shuai,Chen Chunmao,Duan Xiaoguang,Wang Shaobin
Compositional heterogeneity in metal/nitrogen-doped carbons (M-N-Cs) complicates the fundamental elucidation of the intricate interplay between the active metal species that rule the reactivity of single atomic catalysts (SACs). This study unveils the electronic disruptions of cobalt nanoparticles (Co NPs) to the catalytic behaviors of cobalt single-atom (Co SA). The intense electronic communications between high-density Co NPs and Co SA sites lead to dissociation O 3 on the high-spin Co SA sites to generate surface-confined hydroxyl radicals ( • OH). However, the tandem electron transfer yields superoxide radical (O 2 •– ) with low reactivity and remarkably reduce ozone utilization efficiency (OUE). In contrast, independent Co SA sites far or free from adjacent Co NPs induce a nonradical O 3 activation regime, which markedly improves electron utilization efficiency (~2.9-fold), OUE ( ~ 3.0-fold), and turnover frequency (TOF, ~2.5-fold) of Co SA. The nonradical catalytic ozonation process demonstrates high adaptability to complex water matrices and maintains long-term stability in the treatment of real petrochemical wastewater. The deciphered electronic interplays between metal nanoparticles and single atom sites advance a new paradigm to regulate the selectivity of single atom catalysis.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Wanlai Zhu,Guorui Zhou,Zao Yi,Hui You,Dongying Wang
Fiber optic sensors exhibit unique advantages in environmental monitoring and biomedicine, yet conventional designs face limitations in detection limits and sensitivity. To overcome these challenges, a tapered seven core fiber (SCF) sensing system based on dispersion turning point (DTP) modulation and surface modification enhancement is innovatively proposed in this work. The wavelength sensitivity near the DTP approaches infinity, and the DTP can also serve as an intrinsic self-referencing point during sensing. In humidity (1–92 %RH) sensing, the bare fiber achieved a wavelength sensitivity of 0.2025 nm/%RH and an intensity sensitivity of 0.086 dB/%RH near the DTP. In volatile organic compounds (VOCs) detection, silica sol-gel surface modification amplified the response to polar molecules by 2–4 times, enabling ppb-level pollutant sensing. Specifically, the maximum wavelength sensitivity for ethyl acetate exceeded 1094.2 pm/ppm. This study provides a novel integrated solution for the detection of low-concentration VOCs, offering broad application prospects.
✓ 已验证
产品关联
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2025
·
IF 4.6
Yanqin Zhu,Le Wang,Jinwen Zhao,Jiazhong Zhang,Qinhong Yin
Methamphetamine (METH) is a potent psychostimulant with a high potential for addiction, ranking among the most prevalent and frequently abused illicit substances worldwide. Thus, the development of rapid and precise methodologies for METH detection is essential for law enforcement and public health monitoring. This study reported the first construction of a molecularly imprinted fluorescence sensor utilizing EDTA-Cu quantum dots (EDTA-Cu QDs-MIP) for the fluorescence quantification of methamphetamine. The sensor displayed a linear response within a concentration range spanning from 53 to 371 nM, achieving a limit of detection (LOD) equal to 20.6 nM through fluorescence spectroscopy. Validation with real-world samples confirmed the sensor's high accuracy, with recovery rates in the range from 97.2 to 104.4 %. This study not only broadens the scope of QDs in chemical detection but also introduces a strong and portable platform for forensic investigations and on-site screening of illicit drugs.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DYES AND PIGMENTS
·
2025
·
IF 4.2
Xiang-Yi He,Gui-Xin Guo,Qing Li
This study introduces a dual-mode sensing platform based on a cerium-based metal-organic framework (UIO-66-NH 2 (Ce)) that exhibits dual-enzyme-like activity for the sensitive and selective detection of tetracycline (TC) in water and milk. It employs feedback-regulated dual-enzyme cascades along with Ce 3+ /Ce 4+ redox-mediated ligand-to-metal charge transfer (LMCT) to achieve signal inversion in both colorimetric and fluorescence outputs. The phosphatase-like activity of UIO-66-NH 2 (Ce) hydrolyzes L-ascorbyl-2-phosphate (AAP), resulting in the generation of ascorbic acid (AA), which subsequently reduces Ce 4+ to Ce 3+ within UIO-66-NH 2 (Ce). This reduction suppresses its oxidase-like activity while enhancing fluorescence through LMCT inhibition. In the presence of TC, the phosphatase-like activity is selectively inhibited, thereby restoring Ce 4+ -driven oxidase activity and quenching fluorescence. The platform offers broad detection ranges, low limits (5.95 nM fluorescence, 17.54 nM colorimetry), high selectivity, and real sample applicability, with smartphone-based analysis via RGB signals for rapid, on-site testing, aiding environmental and food safety monitoring.
✓ 已验证
产品关联
DOI
高影响因子
Water
·
2025
·Vol. 17
·期 11
·1700
·
IF 3
Xiaoni Lin,Qiang Ge,Xianbo Zhou,Yan Wang,Congyun Zhu,Kuanyong Liu,Jinquan Wan
Bimetallic catalysts can effectively enhance the catalytic degradation efficiency of peroxymonosulfate (PMS), which is usually attributed to the enhancement of electron transfer, but currently, there is no clear explanation of the mechanism of how the electron transfer is enhanced. A nitrogen-doped Fe/Mn composite biochar (FeMn-NBC) was co-constructed by hydrothermal synthesis and high-temperature calcination. The FeMn-NBC activated PMS more efficiently than the monometallic one due to the enhanced electron transfer between Fe and Mn. The FeMn-NBC/PMS system activated PMS with Mn as the active center, and the high oxidation state of Mn4+promoted the acceleration of the PMS adsorption of the generation of Mn2+/Mn3+. This gaining effect accelerated the electron cycling between Fe2+/Fe3+and Mn2+/Mn3+/Mn4+, which enhanced the PMS catalysis to generate free radicals (•OH, SO4•−and •O2−) and non-radicals (1O2) for the efficient degradation of diisobutyl phthalate (DIBP). Benefiting from this gaining effect, the degradation rate of DIBP by the FeMn-NBC/PMS system was increased by 2.43 and 3.38 times compared to Fe-NBC and Mn-NBC. The bimetallic-enhanced electron transfer mechanism proposed in this study facilitated the development of efficient catalysts for more efficient and selective removal of organic pollutants.
✓ 已验证
产品关联
DOI
高影响因子
Plants-Basel
·
2025
·Vol. 14
·期 12
·1851
·
IF 4.1
Xinghai Zhang,Xinyu Feng,Yani Pan,Hanfei Wuzeng,Xinxin Wang,Anran Yan,Lin Xiang,Yaping Lin,Ping Chen,Qiang Chu,Liping Liu
Pu’er raw tea, a representative tea with a positive correlation between quality and storage time, has a unique aging process. It can not only reduce the heavy astringent taste of newly produced tea, but also has a complex and fragrant aging aroma. However, the extremely slow natural aging process often takes years or even decades for quality transformation, along with the risk of termite infestation, odor absorption, etc. This study found that UV-C irradiation could significantly accelerate the aging process of tea. It enhanced the richness of the aroma, while reducing astringency and creating a smoother and mellower taste. The results of substances analysis revealed an increase in key aroma compounds such as alcohols, aldehydes and terpenes, and a decrease in catechin and caffeine with UV-C irradiation, which is consistent with the natural aging trend. An efficient and safe rapid aging technology of Pu’er raw tea has been successfully established.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PHYTOTHERAPY RESEARCH
·
2025
·
IF 6.3
Yanhong Bu,Hong Wu,Ran Deng,Yan Wang,Peirong Gan,Xintong Dong,Jiangtao Ke
Angiogenesis driven by aerobic glycolysis in endothelial cells sustains rheumatoid arthritis (RA) progression. Geniposide (GE), an iridoid ether extracted from the Rubiaceae plant Gardenia jasminoides J. Ellis, has shown anti-angiogenic potential in experimental arthritis. However, its role in metabolic regulation of angiogenesis remains unclear. The purpose was to explore the roles of GE on metabolism in angiogenesis and potential mechanisms. Adjuvant arthritis (AA) rat models and human umbilical vein endothelial cells (HUVECs) were established. Network pharmacology predicted potential targets of GE, while metabolomics analysis was conducted on RA patient serum and AA rat synovial tissue. The role of PFKFB3, a key glycolytic enzyme, was validated by gene silencing and pharmacological interventions. The signaling axis was further explored using inhibitors, agonists, and protein interaction assays. The role of the key glycolytic enzyme PFKFB3 and the upstream–downstream relationship of the signaling axis were validated through gene silencing and pharmacological intervention. GE improved angiogenesis in vivo and in vitro models, and PFKFB3 may be a potential target. Metabolomics has shown that GE significantly inhibited the elevated levels of glycolysis metabolism in arthritis rats, which may be related to the inhibition of PFKFB3 expression. PFKFB3-siRNA down-regulated angiogenesis in HUVECs, demonstrating that PFKFB3-mediated glycolysis was involved in angiogenesis. SphK1-siRNA indicated that PFKFB3 was regulated and activated by the SphK1-PI3K-AKt signal and induced a high level of glycolytic metabolism phenotype. GE intervention significantly downregulated the levels of glycolysis metabolism in arthritis models by inhibiting the SphK1-PI3K-AKt-PFKFB3 signal. The SphK1-PI3K-Akt-PFKB3 signal is the metabolic mechanism of the natural product active ingredient GE in anti-angiogenesis, revealing the important role of glycolytic metabolism in RA angiogenesis. This provides new insights into metabolic regulation in RA treatment and potential therapeutic strategies for metabolic targeted interventions.
✓ 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）