COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Changning Hu,Jie He,Tianyou Zhu,Yubin Chen,Yinjie Peng
Conductive hydrogels possess excellent flexibility and tunable conductivity, making them promising materials for flexible strain sensor and triboelectric nanogenerator (TENG). However, conventional conductive hydrogels suffer from low mechanical strength, toxic crosslinkers, and poor recyclability. In this study, a lignosulfonate (LS)-Fe 3 + autocatalytic system was utilized to rapidly initiate the polymerization of polyacrylic acid (PAA). In addition, carboxymethyl cellulose (CMC) was incorporated to reinforce mechanical strength, while ethylene glycol (EG) was introduced to improve antifreezing and moisturizing properties. The resulting PCL-EG hydrogel was employed to fabricate flexible strain sensor and triboelectric nanogenerator. This hydrogel exhibits outstanding adhesion, self-healing ability, and recyclability. The PCL-EG hydrogel-based strain sensor exhibits a wide detection range and high sensitivity (GF = 13.3 at 300–500 % strain), enabling reliable monitoring of human motion across multiple body regions. Furthermore, TENG assembled with the PCL-EG hydrogel generate stable electrical output, sufficient to power small wearable electronics and support self-powered signal transmission. This work offers valuable insights and guidance for the development of multifunctional flexible electronic devices.
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高影响因子
MATERIALS & DESIGN
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2025
·
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
NEW JOURNAL OF CHEMISTRY
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2025
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IF 2.5
Jie Song,Yingnan Zhou,Lijun Chen,Zhiwen Yuan,Yuhua Niu,Xi Li,Liangxian Huang
This study employed β-cyclodextrin (β-CD) for the hydrophilic modification of iron tetraoxide (Fe3O4) magnetic materials. Subsequently, potassium humate (KHA) and carboxymethyl cellulose (CMC) were used as raw materials. A β-CD@Fe3O4/KHA/CMC/AM/MAH hydrogel with magnetic properties which can be easily recycled was synthesized for the slow release of glyphosate (GLY). FTIR, XRD, TG and VSM analyses demonstrated that the hydrogel possesses good thermal stability and magnetic properties with a saturation magnetization strength of 29.77 emu g−1. The equilibrium solubility of the hydrogel in pH = 7.4 and pH = 8.5 buffer was 24.58 g g−1 and 25.83 g g−1, respectively. The maximum release of GLY was recorded at 63.31% and 67.78%, with the drug release behavior under different loading gels following the Fickian diffusion mechanism. A pot planting experiment indicated that the water content of plants treated with the β-CD@Fe3O4/KHA/CMC/AM/MAH drug-loaded gel decreased by 51.69%. Additionally, soluble protein levels decreased to 2.69 mg g−1, chlorophyll content decreased to 0.486 mg g−1, SOD levels decreased to 43.81 U g−1, and MDA increased to 4.02 μmol g−1, effectively inhibiting the growth of grass and providing a theoretical basis for achieving slow drug release.
研究领域:
材料科学
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高分子科学
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环境科学
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农业化学
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纳米技术
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2018
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IF 6.735
Yue Sun,Yuanli Liu,Zimo Lou,Kunlun Yang,Dan Lv,Jiasheng Zhou,Shams Ali Baig,Xinhua Xu
Iron sulfide (FeS) nanoparticles with large specific surface area and abundant pore structure have been recognized as effective Hg(II) adsorbents. However, bare FeS nanoparticles can aggregate easily, which greatly limited their engineering applications. In this study, FeS nanoparticles were stabilized by biomaterials, including sodium carboxymethyl cellulose (CMC), gelatin and starch, and thoroughly investigated for the stabilization effects. Results demonstrated that the three biomaterial stabilized FeS nanoparticles namely CMC-FeS, gelatin-FeS and starch-FeS enhanced the adsorption efficiency significantly. The maximum adsorption capacities of CMC-FeS, gelatin-FeS and starch-FeS (mass ratio of stabilizer to FeS was 1:6) achieved ∼1726 mg/g, ∼1939 mg/g and ∼1989 mg/g respectively, which were over twice of the bare FeS. TEM images suggested that biomaterial-FeS nanoparticles were dispersed more uniformly than bare FeS. The removal processes of the three materials obeyed pseudo-second-order kinetic model ( R 2 ≥ 0.9986), implying that the rate-limiting step was the chemical sorption process. High removal efficiency of biomaterial-FeS nanoparticles was observed in the initial pH range of 6–11. The presence of Cl − could accelerate the reaction process, whereas the presence of humic acid (HA) could inhibit Hg(II) uptake. In addition, high concentration of coexisting cations (30 mM as Cd 2+ , Pb 2+ , Cu 2+ , and Ca 2+ ) had no significant effect on Hg(II) removal.
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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DOI
高影响因子
MINERALS ENGINEERING
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2022
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IF 5.479
Changtao Wang,Runqing Liu,Qilin Zhai,Meirong Wu,Nianwen Jing,Feifei Xie,Wei Sun
The inevitable presence of metal ions in the slurry significantly impacts the adsorption of organic depressants. In this study, the influence of Fe 3+ and Ca 2+ on the depression of chalcopyrite by carboxymethyl cellulose (CMC) was investigated. CMC slightly depressed chalcopyrite flotation, and the addition of Ca 2+ hardly impact its depression effect. However, the pre-treatment with Fe 3+ enhanced its depression effect severely at acid conditions, while this hydrophilic strengthening effect gradually disappeared under alkaline conditions. CMC physically attached to blank chalcopyrite surface, the surface modification with FeCl 3 not only increased its adsorption capacity on chalcopyrite surface but also altered it from physical adsorption to chemical adsorption. Cu and Fe sites were not involved in CMC adsorption on blank chalcopyrite surface, and the strongly electrostatic repulsion hindered its adhesion under alkaline conditions. After surface modification with FeCl 3 , electrostatic repulsion was weakened, and Fe sites participated in the bonding with CMC molecule. Thus, chalcopyrite was strongly depressed. However, the contents of Fe 3+ , Fe(OH) 2+ and Fe(OH) 2 + on modified chalcopyrite were much less at strong alkaline conditions than acid conditions, which not favored CMC attachment.
研究领域:
矿物加工工程
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表面化学
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DOI
高影响因子
Horticulturae
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2023
·Vol. 9
·期 6
·715
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IF 3.1
Chenyu Niu,Lingling Liu,Amr Farouk,Cunkun Chen,Zhaojun Ban
Citrus fruits are susceptible to microbial infection during storage and transportation, leading to weight loss, quality deterioration and even physiological decay. In this study, a layer-by-layer (LbL) self-assembly edible coating based on chitosan and Sodium carboxymethyl cellulose (CMC) was prepared using electrostatic deposition. Postharvest citrus fruits (Citrus reticulatecv. ‘Chunxiang’) were coated either with the LbL coating, which exhibited an increased transmission rate of water vapor, or with single chitosan coating. The data of some physiological indexes of citrus coated with LbL coating and single coating were compared after being stored at 13 ± 2 °C and at relative humidity (RH) at 80–85% (shelf-life condition) for 10 days. Results demonstrated that the LbL deposited coating was effective at maintaining morphological and microstructural attributes, increasing the surface brightness, firmness and the content of titratable acid and ascorbic acid, as well as reducing the weight loss after storage by about 0.8%. Results in the present study indicated that the LbL edible coating could have the potential to maintain postharvest citrus quality during storage.Keywords:chitosan;CMC;FTIR;SEM;postharvest citrus;quality
研究领域:
食品科学
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植物病理学
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DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2024
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IF 5.3
Qiang Zhang,Xu Li,Jinxiang Dong
Despite significant breakthroughs that have been made in the application performance of traditionally distributed Guerbet alcohol ethoxylates (GAEO), research on the characteristics of their narrow distribution products remains relatively limited. Herein, a series of hydrophilic and hydrophobic nonionic surfactants have been synthesized via the ethoxylation of 2-butyl-octanol with ethylene oxide. Ca(OAc) 2 was employed as a narrow distribution (NRD) catalyst, while KOH served as a broad distribution (BRD) catalyst. The synthesized products were characterized using Fourier-transform infrared (FT-IR), 1 H and 13 C nuclear magnetic resonance ( 1 H, 13 C NMR) spectroscopy. In addition, a comprehensive assessment of the physicochemical and surface properties of the NRD GAEO surfactants was conducted through systematic investigations. The results were then compared to conventionally distributed GAEO surfactants. The study has demonstrated that NRD GAEO surfactants exhibited lower critical micelle concentration (CMC) values, which have the higher efficiency of the surfactant application. In addition, the NRD products have superior wettability performance, reduced foaming capacity in foam properties, and improved rapid defoaming capacities. In regarding their other properties, they closely mirrored the performance of BRD products. These findings will contribute to a comprehensive understanding of the properties of NRD ethoxylates and have substantial practical implications in optimizing personal care and household cleaning products.
研究领域:
化学
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材料科学
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表面活性剂技术
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DOI
高影响因子
MOLECULES
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2018
·Vol. 23
·期 7
·1796
·
IF 3.098
Xiao-Lan Yu,Yong He
The relative overcapacity in China's tea-leaf production and the potential application of tea-leaf saponins in soil remediation encouraged in-depth developments and comprehensive utilizations of tea-leaf resources. Through variables optimizations using Box–Behnken designs for ultrasonic power, temperature as well as ultrasonic treatment time in ultrasonic-assisted water extraction and single-variable experiments for acetone-extraction solution ratio in acetone precipitation, a rapid and simple method was developed for preparing tea-leaf saponins. Tea-leaf saponins with the concentration of 3.832 ± 0.055 mg/mL and the purity of 76.5% ± 1.13% were acquired under the optimal values of 78 w, 60 °C, 20 min and 0.1 ratio of acetone-extraction solution. Both Fourier transform-infrared (FT-IR) spectra and ultraviolet (UV) spectra revealed slight composition differences between tea-leaf saponins and tea-seed saponins, while these differences were not reflected in the critical micelle concentration (CMC) and the surface tension of tea-leaf saponins and tea-seed saponins, indicating there was no need to distinguish them at the CMC. Further research attention on where tea-leaf saponins were in low concentrations is deserved to discover whether they had differences in comparison with tea-seed saponins, which was beneficial to apply them in the phytoremediation of contaminated soils.
研究领域:
化学工程
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环境科学
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分析化学
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农业科学
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DOI
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
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2025
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IF 3.1
Liju Yu,Jie Gao,Tingting Deng,Chang Gao,Jiaxing Wang,Nan Wang
Heart failure is a global epidemic characterized by high mortality and morbidity rates. β1-Adrenoceptors (ADRβ1) antagonists are the main drugs used in the treatment of HF. A simple and convenient method for screening ADRβ1 antagonists is necessary. Nebivolol has four chiral centers, and its byproducts, which are not easy to avoid, may interact with ADRβ1. Cell membrane chromatography based on SNAP-tag technology provides a comprehensive solution. In this study, an ADRβ1 target cell membrane chromatography model based on SNAP-tag technology was established, and the selectivity, specificity, repeatability, and column life of the system were validated. Under optimized conditions, this model was used to screen for active components targeting ADRβ1 in nebivolol and its byproducts. The bioactivity of nebivolol and its byproducts was detected by calcium influx. The results showed that the ADRβ1 SNAP-tag/CMC model was successfully established and could be used to screen active drugs targeting ADRβ1. Among nebivolol and its byproducts, D-nebivolol (SRRR-enantiomer) had the best affinity for ADRβ1. Three byproducts of nebivolol also exhibited retention characteristics on ADRβ1. In vitro calcium influx experiments verified the interaction of these components with ADRβ1, showing good inhibitory effects on ADRβ1. In conclusion, the ADRβ1 SNAP-tag/CMC model developed in this study can be used for the comprehensive screening of active components targeting ADRβ1 in complex samples.
研究领域:
药理学
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药物筛选
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分子生物学
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产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Bangfeng Fu,Ruilei Yang,Liang Zhang,Weijie Gong,Ximei Han,Bingzhi Li,Qianjin Liu,Jianlong Wang
With the escalating focus on sustainable food packaging, the concurrent demands for outstanding mechanical robustness and effective photodynamic antibacterial activity in materials designed for fruit preservation have yet to be adequately fulfilled. This study first engineered an innovative food packaging nanocomposite (CPBI) through strategic integration of BiOBr/I heterojunction within a polyvinyl alcohol/carboxymethyl cellulose (PVA/CMC) matrix, integrating photodynamic antibacterial functionality and ultra-high mechanical strength for perishable fruit preservation. The incorporation of BiOBr/I into the natural-polymer network achieved remarkable pathogen inactivation efficiencies of 97.4 % against Staphylococcus aureus and 93.8 % against Escherichia coli O157:H7 via ROS-mediated membrane peroxidation. Simultaneously, the CPBI film displayed superior mechanical properties (tensile strength: 240.1 MPa, fracture strain: 260 %). In practical storage, this film successfully extended the shelf life of cherry tomatoes to 20 days, demonstrating its highly effective fruit preservation capability. This strategy advances the evolution of intelligent packaging solutions, simultaneously addressing the tripartite challenges of material sustainability, postharvest preservation, and foodborne pathogen mitigation.
研究领域:
材料科学
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食品包装技术
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光催化
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抗菌材料
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可持续农业
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产品关联
DOI
PubMed
高影响因子
POLYMER
·
2025
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IF 4.5
Zhaodi Yi,Zengbin Song,Mingrui Wu,Ming He
Thermochromic hydrogels have attracted considerable interest for their potential use in smart windows and information encryption. Nonetheless, it remains a challenge to achieve flexible and adjustable multilevel phase transitions through simple strategies. In this study, a thermoresponsive composite hydrogel with tunable upper critical solution temperature (UCST) and lower critical solution temperature (LCST) was developed by introducing sodium carboxymethyl cellulose (CMC) and hydroxypropyl cellulose (HPC) into a cross-linked polyacrylamide (PAM) network via a one-pot synthesis approach. CMC not only changed the phase transition temperature, but also greatly improved the mechanical properties, anti-freezing and dimensional stability of the hydrogel. The hydrogel smart window exhibited excellent sunlight modulation capabilities and effective infrared shielding effects (T lum ≈ 90.24 %,ΔT solar,25–2°C = 66.88 %,ΔT solar,25–40°C = 80.81 %), which could simultaneously meet the needs of indoor lighting and energy saving during the daytime, as well as the need for privacy at night. Furthermore, multiple encryption of QR code information and temperature monitoring were realized by combining the hydrogels with different phase transition temperatures. This strategy provides an innovative route to fabricate thermochromic cellulose hydrogels and expands their application in the field of smart materials.
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高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Xiaohong Tan,Wenzhan Li,Wei He,Tingting Yu,Bingbing Wan,Yong Huang,Jintao Liang,Guiyin Li
Glypican-3 (GPC3), which is a surface heparan sulfate proteoglycan, has been widely known the ideal biomarker for diagnosis and treatment of hepatocellular carcinoma (HCC). Accurate and sensitive detection of serum GPC3 level is an important and challenging task. In this paper, a sandwich electrochemical aptasensor was designed to specifically detect serum GPC3 level through aptamer-target-aptamer recognition. A GPC3 aptamer (GPC3 Apt ) immobilized on the surface of gold nanoparticles@reduced graphene oxide modified screen-printed electrode (Au NPs@rGO/SPCE) was used as the capture probe. Hemin-reduced graphene oxide-carboxymethyl chitosan@platinum nanoparticles (H-rGO-CMC@Pt NPs), with good mimicking peroxidases activity, were labeled with amination GPC3 aptamer, which was employed as the signal probe. Once the target GPC3 was anchored on the surface of GPC3 Apt /Au NPs@rGO/SPCE, the H-rGO-CMC@Pt NPs-GPC3 Apt was further specifically bound to the GPC3, forming the aptamer-target-aptamer sandwich structure, which can catalyze the oxidation of hydroquinone (HQ) to benzoquinone (BQ) and lead the oxidation current of HQ recorded by DPV to changing. The linear relationship between the current signal of oxidation of HQ and GPC3 concentration range of 0.0001–3.0 µg/mL and 3.0–60.0 µg/mL, with a low detection limit (LOD) of 0.0685 ng/mL. Additionally, the electrochemical aptasensor was successfully applied for the detection of GPC3 in human serum samples with the recovery of 99.95–104.06 % and relative standard deviation (RSD) of 1.31–5.22 %. Thus, the sandwich aptasensor could provide a new strategy for detection of serum GPC3 level and improve the early diagnosis rate of HCC.
研究领域:
生物医学工程
·
肿瘤学
·
分析化学
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DOI
高影响因子
危险品化学品经营许可证（带存储）