MATERIALS & DESIGN
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2025
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IF 7.9
Yanzhi Cai,Zixuan Yu,Laifei Cheng,Yibing Yuan,Xue Huang,Mingxing Chen,Yalong Chai,Shaoxiong Ren,Yuan Zhou
High sensitivity and structural stability are key challenges for sensors. This study introduces a one-step integral assembly method to create a carboxymethyl cellulose/sodium alginate/carbon black/carbon nanotubes/thermally-treated MXene five-component sponge-structured piezoresistive composite (CMC/SA/CB/CNT/T-MXene sponge, CSCCM T sponge). The multi-scale conductive fillers (zero-dimensional CB, one-dimensional CNT, and two-dimensional (2D) T-MXene) not only reinforce and toughene the sponge structure, greatly improving the structural stability, but also, as conductive fillers, increase the contact sites, significantly improving the sensitivity. Introducing CB transforms the pore wall of the porous composite from a relatively dense 2D structure into a three-dimensional (3D) porous structure. Thermal treatment of MXene not only enhances its conductivity but also makes it easier to exfoliate into nanosheets, resulting in a more uniform distribution of T-MXene within the pore walls. The 3D porous structure improves anti-fatigue stability and promotes contact site variation during deformation, boosting cyclic stability and sensitivity. The lightweight composite exhibits excellent conductivity, mechanical strength (146.7 kPa at 75 % strain), and sensing performance, with high sensitivity (GF = 39.8, S = 1,703 kPa −1 ), fatigue resistance (24,500 cycles), and fast response (100 ms). These properties enable real-time human motion monitoring and show promise for flexible wearable devices.
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高影响因子
MICROCHEMICAL JOURNAL
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2025
·
IF 5.1
Lijun Huang,Yuliang Liu,Xingxin Sheng,Yongbo Zhu,Xinyi Li,Meng Liang,Hao Xie,Ming Zhong,Binbin Zhou
A novel MOFs hydrogel composite (MIP-CuMOFs@SA-CS) was created by integrating a molecularly imprinted metal–organic framework (MIP-CuMOFs) within a scaffold of sodium alginate-chitosan (SA-CS(Cu 2+ )). The MIP-CuMOFs@SA-CS served as a recognition element to construct an electrochemical sensor for the detection of trace amounts of chelerythrine (CHE). Reduced graphene oxide (rGO) and reduced graphene nanoribbons (rGNRs) were employed for electrode modification and served as the sensing platform. It was to enhance the stability and sensitivity attributes of the sensor system. The signal probe of copper hexacyanoferrate (CuHCF) was generated through the chemical reaction involving Cu 2+ within the composite structure of MIP-CuMOFs@SA-CS with potassium ferricyanide. The experimental results showed that the constructed sensor has a good linear relationship (50 ∼ 500 nmol L −1 ) and a low detection limit (13.83 nmol L −1 ). Moreover, the sensor exhibited good selectivity, recovery rates, and repeatability (RSD = 2.81 %). With the subjected to spiked serum samples, the demonstrating recovery percentages were in the range of 97.17 % to 101.73 %. The CHE molecularly imprinted electrochemical sensor constructed is capable of detecting trace amounts of CHE with the advantages of simplicity, rapidity, high sensitivity, and low cost, which provides a useful reference for the detection of low concentrations of CHE.
研究领域:
分析化学
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材料科学
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生物医学工程
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高影响因子
ACS Applied Materials & Interfaces
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2022
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IF 10.383
Yanan Xiao,Fengwei Xie,Hao Luo,Rongxing Tang,Jiazi Hou
A naked-eye detector based on a rapid transmittance response to alcohol was designed to offer real-time and reusable detection of fruit freshness. To ensure the hydrophobicity of the fibrous membrane and high light transmission response to alcohol, fluorine-rich poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) with a low refractive index was selected as the shell layer, while sodium alginate (SA) and polyvinyl alcohol (PVA) were selected as the core layer for coaxial electrospinning. The core–shell fibrous detector was obtained by treatment with CaCl2 to form a stable hydrogel and by water flushing to remove PVA. The interior structure of the fiber and its evolution were investigated with increasing SA concentration, which changed from a nonconcentric structure to a core–shell structure. Without SA, nonconcentric structured fibers were obtained due to high flowability and incompatibility between the organic solvent phase of PVDF-HFP and the aqueous phase of PVA. As the SA concentration increased, the enhanced viscosity and surface tension decreased the asymmetric mobility significantly, which competed with the charge attractive forces from the Taylor cone surface, leading to a core–shell structure. The as-spun membranes were opaque due to light scattering at the interface between air and fiber and became light transparent after immersion in a rotten fruit-containing alcohol and acetic acid due to a decreased light loss. The rapidly responsive, reusable fibrous membranes with over 90% light transparency developed here have high potential for application in visual intelligent packaging to monitor the freshness of fruits and vegetables.
研究领域:
材料科学
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食品科学
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PubMed
高影响因子
MOLECULAR PLANT PATHOLOGY
·
2021
·Vol. 22
·期 7
·817-828
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IF 5.663
Xianping Fang,Weiguo Chai,Shuigen Li,Liqing Zhang,Hong Yu,Jiansheng Shen,Wenfei Xiao,Aichun Liu,Boqiang Zhou,Xueying Zhang
In this study, we used virus-mediated gene silencing technology and found that the HSP17.4 gene-silenced cultivar Sweet Charlie plants were more susceptible to Colletotrichum gloeosporioides than the wild-type Sweet Charlie, and the level of infection was even higher than that of the susceptible cultivar Benihopp. The results of differential quantitative proteomics showed that after infection with the pathogen, the expression of the downstream response genes NPR1 , TGA , and PR-1 of the salicylic acid (SA) signalling pathway was fully up-regulated in the wild-type Sweet Charlie, and the expression of the core transcription factor MYC2 of the jasmonic acid (JA) pathway was significantly down-regulated. The expression of the proteins encoded by these genes did not change significantly in the HSP17.4 -silenced Sweet Charlie, indicating that the expression of HSP17.4 activated the up-regulation of downstream signals of SA and inhibited the JA signal pathway. The experiments that used SA, methyl jasmonate, and their inhibitors to treat plants provide additional evidence that the antagonism between SA and JA regulates the resistance of strawberry plants to C . gloeosporioides .
研究领域:
植物病理学
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分子生物学
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植物遗传学
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PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2026
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IF 10.6
Yunlong Chen,Chang Xu,Wei Lu,Jinliang Li,Jinhu Li,Yang Li,Ting Wang
Coal-induced APS activation enables in-situ gelation within the coal matrix. • DSS retains multiscale penetration before gelation at approximately 63 h. • EPR and APS-consumption tests support coal-induced radical generation. • Total and respirable dust generation fell by 76.46% and 88.91%. • Gelation, pore plugging, and bonding enabled durable source dust control. To address rapid moisture loss after conventional coal seam water injection and the poor coordination between penetration and gelation of traditional gel dust suppressants, an injectable P(SA-co-IA) semi-interpenetrating polymer network (semi-IPN) dust suppressant with coal-induced in-situ gelation was developed. A prepolymer solution containing short-chain P(SA-co-IA) prepolymers and residual reactive monomers was supplemented with ammonium persulfate (APS) and N,N′-methylenebisacrylamide to obtain the dust suppressant solution (DSS). After entering the coal matrix, intrinsic electron-donating functionalities activated APS, triggering radical generation and in-situ crosslinking. L NMR showed that DSS penetrated multiscale pores and approached a stable distribution after approximately 60 h. With an additional APS dosage of 8.47 wt%, gelation occurred at approximately 63 h, providing a compatible penetration–gelation window. Peroxide concentration tests, EPR, FTIR, rheological measurements, gel fraction, and SEM–EDS confirmed coal-induced APS activation and semi-IPN hydrogel formation. After 12 h, the water evaporation rate of DSS-treated coal was approximately 30%. After 72 h, total and respirable dust-generation rates decreased by 76.46% and 88.91%, respectively. BET, SEM, and molecular dynamics simulations indicated that pore plugging, surface coating, hydrogen-bond adsorption, and particle bonding enhanced coal structural stability and reduced dust generation at the source. Download: Download high-res image (243KB) Download: Download full-size image
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 10
·689
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IF 5.4
Liu Shijie,Zhao Lijun,Bai Yueyu,Ding Qian,Ma Yangyang,Li Miaoyun,Liang Dong,Liu Yanxia,Li Haoyun,Sun Lingxia
Achieving accurate quantification and counting of active lactic acid bacteria (LAB) is an important technical guarantee for the industrial production and application of LAB and their products. In this study, a gold nanoparticles@polyvinylpyrrolidone/sodium alginate (AuNPs@PVP/SA) hydrogel SERS sensor with outstanding stability and sensitivity was developed. Utilizing this platform as a substrate material to mitigate the “coffee ring” effect, we explored a strategy for the precise quantitative determination of mixed active LAB based on the AuNPs@PVP/SA hydrogel SERS platform and D 2 O-probed Raman spectroscopy technology. The results indicated that the SERS platform based on AuNPs@PVP/SA hydrogel exhibited excellent spectral reproducibility for LAB as a SERS substrate material, with a significantly reduced “coffee ring” effect. This strategy enabled rapid and quantitative detection of active lactic acid bacteria (LAB), with a limit of detection (LOD) of 10 CFU/mL. Moreover, the strategy had excellent analytical capabilities for the qualitative identification and precise quantification of different species of active LAB in actual samples, achieving an average accuracy of 98.67% with RSD values all less than 5%. It provides a potential technical support for the dynamic monitoring of relative abundance and metabolic phenomena of mixed active LAB in co-culture systems during actual industrial production. Graphical
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高影响因子
DESALINATION
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2024
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IF 8.3
Junhao Chen,Mengyao Zhu,Guang He,Huiyu Yang,Ziwei Deng,Jiehao Du,Xin Liu,Jingjing Huang,Shaojin Gu,Bin Shang
The daily water productivity of sorption-based atmospheric water harvesting (SAWH) materials is significantly limited by their low moisture sorption capacity and sluggish ab/desorption kinetics. Here, a thin, porous, mechanically stable and high LiCl-loading content super-hygroscopic SA-MXene@LiCl membrane (SM@LiCl) was fabricated via vacuum-assisted filtration and freeze-drying methods. The thin and porous characteristics of the cross-linked SA-MXene network significantly reduce moisture transport resistance, while the wrapped hygroscopic LiCl effectively enhances its moisture capture capacity. When applied to SAWH, this nanocomposite membrane demonstrates an impressive water uptake performance of 1.69 g g −1 within 1 h at 45 % RH and releases over 65 % of absorbed water after only 0.5 h of sunlight irradiation (1 kW/m 2 ). With its high moisture sorption capacity and rapid ab/desorption kinetics, it can operate for up to 16 cycles per day in indoor environment, resulting in a record daily water yield of 19.46 L kg −1 at 45 % RH. The present study presents a straightforward approach for the development of high-quality sorbents with improved ab/desorption kinetics for SAWH.
研究领域:
材料科学
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环境科学
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高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
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2025
·Vol. 31
·期 12
·e202404538
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IF 3.7
Yang Meng,Wen Li,Lingji Zhang,Mario Berrettoni,Hongzhong Zhang,Xiaojing Zhang
Graphical This study develops pH-responsive SA/PEGDA/AS-POSS hydrogels through Michael addition reactions to achieve controlled drug release and enhanced mechanical properties. The hydrogels exhibit tunable swelling and degradation behaviors under various pH conditions, demonstrating their potential for targeted drug delivery. These hydrogels offer promising prospects for biomedical applications, providing efficient drug loading, controlled release, and improved mechanical strength. In this study, thiolated sodium alginate (SA) and hydrophilic, polymerizable Janus-type polyhedral oligomeric silsesquioxane (AS-POSS) are synthesized by introducing thiol and sulfonic acid groups, respectively. A series of pH-responsive SA/PEGDA/AS-POSS nanocomposite hydrogels are successfully prepared through Michael addition reactions between the thiol groups of thiolated sodium alginate and the double bonds in the molecular chains of AS-POSS and poly(ethylene glycol) diacrylate (PEGDA). This reaction proceeds rapidly under physiological conditions without requiring initiators or catalysts. As the content of AS-POSS increases, the pore size within the hydrogel decreases, and the network structure becomes denser, with significant improvements in mechanical properties. The hydrogel exhibits excellent pH sensitivity, showing lower swelling in acidic media compared to neutral media, and undergoing hydrolysis and losing stability in alkaline media. Moreover, the incorporation of AS-POSS significantly enhances the drug-loading capacity (85.7 %) and encapsulation efficiency (72.1 %) of doxorubicin (DOX). The drug is released faster in weakly acidic environments, with a cumulative release rate reaching 80.4 %, demonstrating excellent targeting and controlled release properties. Cytotoxicity tests show that the SA/PEGDA/AS-POSS hydrogel has good biocompatibility and exhibits effective tumor-killing ability, indicating its great potential as a drug carrier with promising applications in biomedical materials.
研究领域:
生物材料
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药剂学
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高分子化学
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PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
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IF 9.4
Yaru Zheng,Wei Li,Jie Ju,Jiechao Jiang,Ling Zhang,Hao Jiang,Yanjie Hu,Chunzhong Li
Single-atom catalysts (SACs) have garnered considerable interest in the field of heterogeneous catalysis. This study detail the synthesis of single-atom Pd catalysts supported on metal oxides using the Flame Spray Pyrolysis (FSP) method. This technique allows for the preparation of TiO 2 with abundant oxygen vacancies by incorporating a hydrogen-rich atmosphere at high temperature (>2000 K) utilizing the quenching ring, which enhances the catalyst synthesis process. Additionally, the distribution and electronic structure of Pd were tailored in a hydrogen-rich atmosphere, which promoted the entrapment of Pd atoms within oxygen vacancies, preventing their aggregation into Pd nanoparticles and leading to the formation of Pd-SA/TiO 2 . Notably, Pd-SA/TiO 2 achieves 92.51 % CO 2 -to-CO selectivity in the photocatalytic CO 2 reduction reaction and exhibits an impressive catalytic activity of 56.84μmol g −1 h −1 . This research introduces a novel approach to modulate the anchoring process and optimize the microenvironment for single-atom metal synthesis, advancing the development of the-state-of-the-art SACs.
研究领域:
材料科学
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催化化学
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环境科学
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PubMed
高影响因子
CHEMOSPHERE
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2020
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IF 5.778
Pengcheng Zhao,Shihu Liu,Wei Huang,Lei He,Jiao Li,Jiong Zhou,Jian Zhou
Essential oils (EOs) are naturally occurring substances that have shown great prospect in the field of antimicrobial, antioxidant and pest control by nontoxic mechanisms. In this regard, EOs are considered the promising and eco-friendly approach for controlling harmful algae. In this study, the anti-cyanobacterial activity of EOs eugenol against Microcystis aeruginosa are evaluated from the perspective of photosynthetic efficiency, the behavior of extracellular organic matter (EOM), endogenous plant hormone synthesis, and nitric oxide signaling pathway. Results showed that the photosynthetic activity of M. aeruginosa decreased significantly after eugenol treatments. Eugenol treatment resulted in cells rupture and the release of EOM. Levels of endogenous plant hormones salicylic acid (SA) and jasmonic acid (JA) were enhanced separately by 2.32 and 2.01 times after 4 d of exposure to eugenol. And the inhibition of SA and JA biosynthesis further promotes the inhibitory effects of eugenol on algae. Additionally, the signaling molecule nitric oxide (NO) increased significantly by 3.78-fold. Furthermore, the influence of NO on microalgae exposed to eugenol was also determined, suggesting that the inhibitory effect of eugenol stress might be associated with NO generation in M. aeruginosa . These findings will be helpful for the understanding of the fate and potential of eugenol in harmful algae control.
研究领域:
环境科学
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微生物学
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植物生理学
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生态毒理学
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DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2019
·
IF 6.361
Lihong Fan,Yuqing Lu,Li-Ye Yang,Fangfang Huang,Xiao-kun Ouyang
Hypothesis We synthesized composite microspheres from cellulose nanocrystal (CNC), polyvinyl alcohol (PVA), and sodium alginate (SA), which were modified with polyethyleneimine (PEI) to introduce a high density of active amino sites onto the surface via the Schiff base reaction. We hypothesized that these (SA/CNC/PVA)@PEI microspheres would have a high adsorption capacity for aqueous diclofenac sodium (DS). Experiments The PEI-modified composite microspheres were characterized and assessed and optimized for aqueous DS adsorption. In addition, the morphology and synthesis mechanism of the adsorbent were studied. Findings The adsorption process showed a good fit with the pseudo-second-order kinetic model (i.e., the process is driven by a chemical adsorption mechanism) and Langmuir adsorption isotherm model (i.e., adsorption follows a single-layer process). Under the optimum experimental conditions (pH: 4.5, adsorption time: 50 min, temperature: 303 K), the maximum adsorption capacity was 418.4104 mg/g, which was relatively high compared to other reported adsorbents. Importantly, after five adsorption–desorption cycles, (SA/CNC/PVA)@PEI showed only a slight loss in adsorption capacity. Compared with other reported adsorbents, the core–shell composite has a good DS adsorptive capacity and high recyclability.
研究领域:
环境科学
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材料科学
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化学工程
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水处理
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高分子化学
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2017
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IF 3.359
Ying Zhao,Yu Chen,Jian Zhao,Zongrui Tong,Shaohua Jin
A pH-responsive polyampholytic superabsorbent polymer (SAP), sodium alginate-g-(polyacrylic acid-co-polymethacryloxyethyltrimethyl ammonium chloride) (SA-g-(PAA-co-PDMC)), was prepared by the free-radical-induced graft copolymerization . The structure of the SAP was characterized by FTIR, XRD and SEM. The synthesis conditions were optimized to achieve an SAP with the highest swelling ratio. The anionic dye adsorption properties of the achieved SAP were characterized using Food Yellow 3 (FY3) as a model dye. The effects of DMC amount and pH of the dye solution on the adsorption capacities were determined. The adsorption kinetics, isotherm, thermodynamics, desorption and reusability of the SAP were studied respectively. The maximum adsorption capacity and removal efficiency of SA-g-(PAA-co-PDMC) SAP reached up to 654.87 mg/g and 98.23%, respectively, which are among the highest values of solid adsorbents in FY3 adsorption. Compared with the traditional polyanion SAPs, the SAP prepared in the present work can be expended to the simultaneous removal of both cationic and anionic dyes.
研究领域:
材料科学
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环境科学
·
化学工程
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DOI
高影响因子
危险品化学品经营许可证（带存储）