JOURNAL OF POLYMER SCIENCE
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2025
·
IF 3.6
Xiao-Ming Zhang,Qiao Zhang,Jiangang Gao,Xiang-Yun Du
Wastewater treatment contributes to the sustainable utilization of water resources for alleviating water scarcity. The application of polymeric materials as adsorbents for eliminating hazardous substances in water has garnered extensive attention owing to their remarkable adsorption efficiency, stability, and selectivity. Herein, a facile strategy is provided to rapidly synthesize poly(acrylic acid- co -sodium 2-acrylamide-2-methylpropanesulfonate) (poly(AA- co -NaAMPS)) hydrogels with exceptional adsorptive capacity via frontal polymerization (FP). The FP processes are meticulously examined in terms of initiator dosage and monomer ratio. The as-prepared hydrogels demonstrate pH-responsive swelling ability and pH-dependent adsorption capacity for various dyes and heavy metal ions. Compared with traditional batch polymerization (BP), the hydrogels prepared by FP exhibit superior swelling and adsorption abilities. Additionally, research on the adsorption mechanism for both dyes and heavy metal ions is conducted by fitting the adsorption kinetic data both with Langmuir and Freundlich equations. The maximum adsorption capacity ( q m ) of hydrogels derived from Langmuir model for dyes of methylene blue (MB) and rhodamine B (RB) is, respectively, 595.3 and 3078.5 mg g −1 , while for heavy metal ions of Cr 3+ and Cd 2+ is, respectively, 1010.8 and 1191.3 mg g −1 . This research exploits an alternative approach for the rapid preparation of high-efficiency hydrogel adsorbents toward wastewater treatment. Graphical Poly(AA- co -NaAMPS) hydrogels are facile synthesized through frontal polymerization within 10 min. The as-prepared hydrogels display excellent adsorption ability for both dyes and heavy metal ions. The maximum adsorption capacity for dyes of methylene blue and rhodamine B is, respectively, 595.3 and 3078.5 mg g −1 , while for heavy metal ions of Cr 3+ and Cd 2+ is, respectively, 1010.8 and 1191.3 mg g −1 .
研究领域:
环境科学
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材料科学
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DOI
高影响因子
OPTICAL MATERIALS
·
2022
·
IF 3.754
Xiangqiong He,Bing Yu,Xiulan Zhang,Hailin Cong
By changing the amount of acrylic acid, different monodisperse poly(styrene-co-methyl methacrylate-co-3-sulfopropyl methacrylate potassium salt-co-acrylic acid) (P(St-MMA-SPMAP-AA)) microspheres are synthesized by soap-free emulsion polymerization . Two-dimensional or three-dimensional PSMSSA colloidal crystals are successfully prepared by the gas-liquid interface assembly method. A noticeable shift of the bandgap of the PSMSSA colloidal crystals is observed at different pH, after the addition of diluted HCl aqueous, a structure color of amaranth is found for the PSMSSA colloidal crystals, and a structure color of blue-green is formed under neutral conditions. By using PSMSSA colloidal crystals on the liquid interface , the colloidal voids are filled with liquid, and its optical and pH-responsive properties can be directly measured without re-transfer, realizing the simple and efficient preparation of pH-responsive colloidal crystals sensors. Compared with the traditional pH sensor, the gas-liquid interface self-assembled colloidal crystals sensor is not only economical and economical, but also a reversible sensor visible to the naked eye.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2024
·
IF 5.7
Yang Xiao,Zhiyi Zhou,Yifan Zuo,Xueyuan Wu,Yuping Liu,Yichen Li,Yuetong Gao,Xiashu Zhang,Yu Wang,Lili Hu,Chenglin Li
Background The technology of capturing circulating tumor cells (CTCs) plays a crucial role in the diagnosis, evaluation of therapeutic efficacy, and prediction of prognosis in lung cancer. However, the presence of complex blood environment often results in severe nonspecific protein adsorption and interferences from blood cells, which negatively impacts the specificity of CTCs capture. There is a great need for development of novel nanomaterials for CTCs capture with prominent anti-nonspecific adsorptions from proteins or blood cells. Results We present a novel immune magnetic probe Fe 3 O 4 @(PEI/AA) 4 @Apt. The surface of Fe 3 O 4 particles was modified with four layers of PEI/AA composite by layer-by-layer assembly. Furthermore, aptamers targeting epithelial marker EpCAM (SYL3C) and mesenchymal marker CSV (ZY5C) were simultaneously connected on Fe 3 O 4 @(PEI/AA) 4 to improve the detection of different phenotypic CTCs and reduce false negatives. The results demonstrated that the (PEI/AA) 4 coatings not only minimized non-specific protein adsorptions, but also significantly reduced the adsorption rate of red blood cells to a mere 1 %, as a result of which, the Fe 3 O 4 @(PEI/AA) 4 @Apt probe achieved a remarkably high capture efficiency toward CTCs (95.9 %). In the subsequent validation of clinical samples, the probe was also effective in capturing rare CTCs from lung cancer patients. Significance and novelty A (PEI/AA) polymerized composite with controllable layers was fabricated by layer-by-layer self-assembly technique, which displayed remarkable anti-nonspecific adsorption capabilities toward proteins and cells. Importantly, Fe 3 O 4 @(PEI/AA) 4 @Apt probe significantly improved CTCs capture purity in lung cancer patients to 89.36 %. For the first time, this study combined controllable (PEI/AA) layers with magnetic separation to innovatively build a resistant interface that significantly improves the specific capture performances of CTCs, broadening the application of this polymerized composite.
研究领域:
生物医学工程
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纳米技术
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癌症诊断
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分子生物学
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DOI
PubMed
高影响因子
ENVIRONMENTAL TECHNOLOGY
·
2020
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IF 2.213
Yi-xin Liu,Hui Zhong,Xiao-rong Li,Zhuan-li Bao,Zhi-peng Cheng,Yu-jie Zhang,Chun-xiang Li
In this work, attapulgite (ATP)-based dual sensitive poly (N-isopropylacrylamide-co-acrylic acid) composite hydrogel, P(NIPAM-co-AA)/ATP, was prepared by free radical polymerization. The prepared composite hydrogel was characterized via methods of scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), zeta potential analysis and Brunauer, Emmett, and Teller (BET) etc. The composite hydrogel showed pH and temperature sensitive behaviour, with lower critical solution temperature (LCST) of 35°C and highest swelling occurred at pH 8.0. The adsorption of methyl violet (MV) can be controlled by the hydrogel responsiveness, and 95.78% of MV can be removed at pH 8.0 and 35°C. The addition of a small amount of ATP (3 Wt%) can improve the swelling ratio and adsorption capacity. Kinetic analysis demonstrated that the experimental data were best fitted to the pseudo-second order model. Isotherm analysis showed that the equilibrium data followed Langmuir model with the adsorption capacity of 168.35 mg g−1. In addition, the composite hydrogel has high adsorption selectivity for cationic dyes, and MV-loaded hydrogel is easy to regenerate, which can be used for successive adsorption cycles. These results demonstrate that the composite hydrogel has potential application in dye wastewater treatment.
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
PubMed
高影响因子
EUROPEAN POLYMER JOURNAL
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2023
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IF 6
Xikun Zhang,Xue Lv,Ting Xie,Yanwen Cheng,Jiajia Zhang,Xiaoyan Xu
In catalytic reactions, achieving large specific surface area immobilisation of the catalyst is an important factor affecting the catalytic effect, however, the primary challenges in utilizing hydrogels as catalyst carriers are to enhance the mechanical properties of the hydrogel to improve the activity and controllability of the catalyst. In this study, a new structure of P(AM-co-AA)/SMA/NH 2 -SiO 2 hydrogels was synthesized via free radical polymerization, and the effects of the content of AA and NH 2 -SiO 2 on the mechanical properties of the hydrogels were investigated. Without the use of additional cross-linking agents, both a chemical cross-linking network and a hydrophobic linkage network were established, which effectively reconstructed the structure of the hydrogels and dissipated energy. As a result, P(AM-co-AA-1.5 %)/SMA/NH 2 -SiO 2 -0.5 % hydrogel exhibited high mechanical properties, with tensile strength, elongation, and toughness reaching 1456 KPa, 4605 %, and 23.59 MJ/m 3 , respectively. This hydrogel can be utilized as a template for in situ and stable Ag NPs. Additionally, P(AM-co-AA)/SMA/NH 2 -SiO 2 @Ag composite hydrogels were prepared using cation exchange and in situ reduction methods for the catalytic reduction of 4-nitrophenol (4-NP). The composite hydrogel exhibited fast catalysis, high efficiency, stable cycling, recyclability and adjustable catalytic activity at 35 °C with K app = 0.811 min −1 . Furthermore, using this composite hydrogel alleviated the need for separating metal nanoparticle catalysts from the reaction system, thereby enabling the development of robust hydrogel materials with controlled catalytic activity for the wastewater treatment industry.
研究领域:
材料科学
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环境科学
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催化化学
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高影响因子
JOURNAL OF POLYMER RESEARCH
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2020
·Vol. 27
·期 6
·1-9
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IF 2.426
Deng Yaling,Sun Jianjun,Ni Xingya,Yu Bo
Natural joints have the hierarchical structure of bone and cartilage, providing excellent lubrication and load-carrying capacity. In our research, the hierarchical structure artificial joints of Poly Acrylic Acid (PAA)- Poly Acrylamide (PAAm) hydrogel coating and Ti6Al4V substrate were formed using a simple yet versatile method by mimicking the hierarchical structure of natural joints. The efficient lubrication at friction interfaces was achieved. The composition and microstructure were confirmed by Fourier-transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM). The hydrogel coatings were successfully prepared on the surface of Ti6Al4V substrate through the adsorption of the charged group. This hierarchical structure material exhibits the lower dynamic friction, approximately 0.085, which is much lower than bare Ti6Al4V, about 0.429. The wear on the surfaces after the tribological experiment is super-shallow and has no significant fracture area around the scratch. The PAA-PAAm hydrogel has a more uniform and compact cross-linked network porous structure, and the porous size is much smaller than PAA hydrogel. The cross-linked network porous structure is the main factor accounting for the low dynamic friction. This hierarchical structure of soft and hard improve the load-carrying ability and has the potential uses in artificial joints.
研究领域:
生物材料学
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摩擦学
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医学工程
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DOI
高影响因子
OPTICAL MATERIALS
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2025
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IF 4.2
Chenyan Lu,Dajie Zou,Yanyan Jia,Yongchang Lu,Huan Wang,Yanfeng He
In this study, a novel nitrogen-chlorine-codoped carbon quantum dots (NCl-CQDs) with low toxicity, thermal stability, good fluorescence properties, biocompatibility and high sensitivity was successfully prepared by hydrothermal carbonization. Based on the above advantages of NCl-CQDs, the NCl-CQDs was used to construct fluorescence sensing system for fluorescence probes. The maximum fluorescence emission wavelength was obtained at 470 nm when the excitation wavelength was 390 nm. The fluorescence signal was in the state of “ON”. The introduction of 2,6-Dichloroindophenol Sodium (DCIP) resulted in the quenching of fluorescence intensity due to photoinduced electron transfer between DCIP and NCl-CQDs. At this point, the color of the solution changed from brownish-yellow to light blue, indicating that the fluorescence signal was in an “OFF” state. Upon addition of ascorbic acid (AA) to the NCl-CQDs/DCIP system, the corresponding fluorescence signal was restored due to the special interaction between AA and DCIP. The color of the corresponding solution changed from light blue to colorless. The fluorescence signal was in the “on” state. Therefore, an “ON-OFF-ON” sensing system and colorimetric sensing system for AA was constructed using the NCl-CQD fluorescence probe. Under the optimized experimental conditions, the proposed methods exhibited satisfactory linear ranges. Specifically, the linear range for AA detection by the fluorescence sensor spanned from 1.2 μM to 180.33 μM, while that by the colorimetric sensor ranged from 1.32 μM to 166.55 μM. The corresponding detection limits were determined to be 0.68 μM and 0.55 μM, respectively. In summary, this sensing system could effectively enhance selectivity, sensitivity, and accuracy by preventing false positive detection results caused by environmental and system errors.
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高影响因子
IEEE SENSORS JOURNAL
·
2026
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IF 4.5
Dongfu Xu,Yushuang Luo,Jie Fu,Xiangxiang Li,Yihong Ding,Fangying Xiong,Jiawang Wang,Lizhi Lin,Hui Yang,Jingjing Liu,Shuang Li
Organic field-effect transistors (OFETs) represent a breakthrough biosensing technology owing to their exceptional sensitivity, mechanical flexibility, and cost-effective manufacturing. The simultaneous detection of dopamine (DA), ascorbic acid (AA), and uric acid (UA) holds critical importance in clinical diagnostics as these biomarkers provide vital information about neurological health, antioxidant status, and renal function. Conventional detection methods face significant challenges due to the overlapping oxidation potentials of these molecules in electrochemical measurements, resulting in poor selectivity and accuracy. Developing advanced sensing platforms capable of discriminating these biomarkers in complex biological samples remains an urgent requirement in modern healthcare diagnostics. This research successfully developed a molecularly engineered extended-gate OFET biosensor for simultaneous detection of DA, AA, and UA with exceptional performance. The functionalized sensing interface, incorporating cysteamine for DA recognition, carboxylated graphene oxide for AA catalysis, and p-AMTa for UA binding, achieved remarkable detection limits of 0.28 μM, 0.35 μM, and 0.41 μM respectively. Comprehensive cross-reactivity studies demonstrated excellent specificity with interference below 5.2% in mixed analyte solutions. Quantitative validation using standard addition method showed recovery rates of 97.2-103.8% and relative errors consistently under 4.2%, confirming high detection accuracy. The biosensor maintained outstanding operational stability over 30 detection cycles with RSD < 5.1%, demonstrating excellent reproducibility. This integrated platform represents a significant advancement in multiplexed biomarker detection, offering a reliable approach for complex sample analysis. This work provides a robust strategy for simultaneous electrochemical detection of multiple biomarkers, effectively addressing selectivity challenges in conventional biosensing. The developed platform demonstrates strong potential for clinical diagnostics and point-of-care testing applications, enabling rapid disease screening and health monitoring. This technology represents a significant step forward in the development of high-performance, cost-effective diagnostic tools for healthcare applications.
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Wenjing Xue,Dong Yan,Guoqiang Han,Wande Ding,Kefeng Zhang,Qianwen Zhang
The inherent hydrophobicity of polyvinylidene fluoride (PVDF) ultrafiltration (UF) membranes exacerbates fouling and limits separation efficiency. To address this, copolymerized poly(vinylidene fluoride- co -acrylic acid) (p(VDF-co-AA)) membranes were fabricated through tert-amyl peroxyneodecanoate (TBPP)-initiated in situ carboxyl group grafting. NMR and XPS verified carboxyl incorporation, while SEM and AFM revealed pore structure refinement (38.44 nm average pore diameter) and increased surface roughness (Ra: increased from 22.7 nm for PVDF membrane to 40.1 nm for p(VDF-co-AA 1.5wt% )). These structural enhancements elevated hydrophilicity, reducing water contact angle by 37.9 % (from 76.65 o ± 2.16 for PVDF membrane. decreased to 47.64 o ± 0.66 for p(VDF-co-AA 1.5wt% )) and tripling pure water permeance to 617 L·m −2 ·h −1 ·bar −1 . Molecular dynamics simulations revealed that synergistic hydrogen bonding and carboxyl polar interactions dominated hydrophilicity enhancement. The modified membranes demonstrated outstanding antifouling performance against humic acid (HA), bovine serum albumin (BSA), and sodium alginate (SA), achieving 28.0–38.8 % higher flux retention (J/J 0 ) and 16.7–50.1 % lower irreversible fouling. Notably, the incorporation of carboxyl groups facilitated stable separation performance under extreme alkaline conditions (pH = 14), retaining over 87.6 % of the initial flux and 69.10 % DOC rejection after a 3-day exposure period. This study provides a robust strategy for the development of high-performance UF membranes through molecular-scale hydrophilicity engineering.
研究领域:
膜科学
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高分子化学
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材料科学
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环境工程
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化学工程
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高影响因子
JOURNAL OF MOLECULAR STRUCTURE
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2025
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IF 4.7
Ousseini Seidina Ousseini,Bo Peng,Zhuang Miao,Kai Cheng,Mandella Ali,Jingwei Li,Jixiang He,Seybou Yacouba Zakariyaou
This study presents the synthesis and evaluation of a novel nanocomposite using dispersion polymerization of Acrylamide (AM), Acrylic Acid (AA), 2-acrylamido-2-methyl propane sulfonic acid (AMPS), and N, N’-methylenebisacrylamide (MBA) grafted onto the surface of modified nano-SiO 2 (M-NS). The modification, achieved using γ-Methacryloyloxypropyltrimethoxysilane (KH570), enhances hydrophobicity and stability. Comprehensive characterization techniques, including ultraviolet-visible spectroscopy (UV-Vis), Fourier-transform infrared (FTIR), laser particle size analysis, and zeta potential measurements were employed to confirm the structural integrity and functionalization of the nanocomposite. Emphasis was placed on examining swelling, viscosity, and dispersion stability under various temperature, salinity, and water conditions to determine its effectiveness under high-temperature and high salinity environments typical of oil reservoirs. The results revealed significant enhancements in swelling behavior and dispersion stability, with high resistance to thermal degradation and salinity-induced aggregation. The nanocomposite demonstrates superior swelling behavior, viscosity retention, and thermal stability under high-temperature (70°C) and high-salinity (up to 20g/L NaCl) conditions, outperforming traditional grafted polymers. Results demonstrated that swelling ratios improve by 45% with 2wt% M-NS, and viscosity degradation is significantly reduced over 20 days of aging. Ionic effects, analyzed show enhanced resistance to divalent ions (Mg 2+ and Ca 2+ ), critical for harsh reservoirs environments. These findings suggest superior conformance control, compliance, and thermal stability, which were further improved with the rise of modified nano-SiO 2 positioning this nanocomposite as a promising option for chemical-enhanced oil recovery applications, addressing in permeability heterogeneity and salinity-induced aggregation.
研究领域:
材料科学
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石油工程
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化学工程
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DOI
高影响因子
MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Wei Li,Shujing Zhou,Yihong Nan,Jiale Hu,Pei Luo,Yun Zhang,Ziyuan Li,Zhongsheng Yi,Jianmei Zou
Employing a facile and cost-effective room-temperature co-precipitation method, we synthesized a 2D bimetallic Co/Cu-MOF for the first time. • The 2D Co/Cu-MOF exhibits enhanced OXD-like activity, directly oxidizing TMB to produce blue oxTMB in the absence of H 2 O 2 . • A simple colorimetric sensing platform was developed for detecting AA and ALP, enabling their measurement in human serum. • The 2D Co/Cu-MOF exhibited significant antibacterial efficacy against both E. coli and S. aureus . Nanozymes have attracted extensive attention in sensing and antibacterial fields. Herein, a two-dimensional (2D) bimetallic Co/Cu-based metal-organic framework (Co/Cu-MOF) was successfully synthesized for the first time via a facile, economical one-step room-temperature co-precipitation method. The as-prepared Co/Cu-MOF exhibited excellent oxidase (OXD)-like activity, which could catalyze dissolved oxygen to generate reactive oxygen species (ROS) without H 2 O 2 , and further oxidize the 3,3′,5,5′-tetramethylbenzidine (TMB) to blue oxTMB. Based on the reduction of oxTMB by ascorbic acid (AA), a sensitive colorimetric sensing platform for AA was constructed, showing a linear range of 0.1–28 μM and a low detection limit of 0.091 μM (3σ/S). With AA as a mediator, this strategy was readily extended to alkaline phosphatase (ALP) detection, presenting a linear range of 0.2–6.5 U/L and a detection limit of 0.12 U/L. The proposed sensor was successfully applied to quantify AA and ALP in human serum samples. Furthermore, Co/Cu-MOF displayed strong antibacterial activity against both Escherichia coli ( E. coli ) and Staphylococcus aureus ( S. aureus ), and its underlying antibacterial mechanism was elucidated. Collectively, this 2D bimetallic MOF provides a promising platform for biochemical sensing and antimicrobial technologies. Download: Download high-res image (142KB) Download: Download full-size image
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DOI
高影响因子
Materials Express
·
2020
·Vol. 10
·期 12
·2122-2129
·
IF 1.65
Wei Lai,Wang Jun,Arshad Naila,Wang Jianying
2-Hydroxyethyl methacrylate (HEMA) improved colloids of silica/carbon dots (SiO2/HMCDs) were used by means of new translucent, nontoxic cross-linking centers comprising two non-toxic components, silica colloids and carbon dots. The direct photopolymerization of a mixture
of acrylic acid (AA), HEMA, and SiO2/HMCDs afforded ultrahigh strength and mechanically robust hydrogel. The fabricated fluorescent SiO2/HMCDs-based hydrogels demonstrated stable photoluminescence owing to their outstanding mechanical flexibility. Fluorescent hydrogels
exhibited tensile strength of up to ∼ 13.2 MPa by processing with 1 wt% SiO2/HMCDs content. More importantly, the mechanical properties (stress or strain) could be changed by controlling the content of SiO2/HMCDs and H2O. Relative hierarchical structure
attributed to high mechanical strength.
研究领域:
材料科学
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生物医学工程
·
化学工程
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）