JOURNAL OF POLYMER SCIENCE
·
2024
·
IF 3.9
Wenjin Wang,Shengjie Liu,Yijia Yu,Wenjuan Xia,Zhaoqiang Wu,Hong Chen
The growing demand for lipid–polymer conjugates (LPCs) in biomedicine highlights the need for efficient synthesis methods. This study presents a novel Y-type photoiniferter reagent (Lipid-PIT) with a diethyldithiocarbamate group and a diacylglycerol group. Lipid-PIT efficiently initiated the polymerization of vinyl monomers such as oligo(ethylene glycol) methacrylate (OEGMA), N , N -dimethylacrylamide (DMA), tert -butyl acrylate (tBA), and n -butyl acrylate ( n BA) under UV irradiation at room temperature, yielding LPCs. Proton NMR confirmed the presence of diethyldithiocarbamate and diacylglycerol moieties at the chain ends. The polymerization kinetics of DMA showed a linear increase in molecular weight ( M n ) with time, with a polydispersity (Đ) below 1.50, demonstrating high controllability. Moreover, Lipid-PIT allows for the creation of block copolymers via secondary chain extension. In vitro assays revealed that LPCs synthesized from OEGMA monomers successfully modified L929 and HeLa cell surfaces and exhibited good biocompatibility. This study offers a rapid, efficient method for LPC synthesis with promising biomedical applications. Graphical A simple, rapid, efficient, and cost-effective method based on photoiniferter polymerization for the synthesis of lipid–polymer conjugates was developed.
研究领域:
生物医学工程
·
材料科学
·
细胞生物学
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-11
·
IF 14.7
Gu Chao-Hai,Wang Song,Zhang Ai-Yong,Liu Chang,Jiang Jun,Yu Han-Qing
Developing eco-friendly catalysts for effective water purification with minimal oxidant use is imperative. Herein, we present a metal-free and nitrogen/fluorine dual-site catalyst, enhancing the selectivity and utilization of singlet oxygen ( 1 O 2 ) for water decontamination. Advanced theoretical simulations reveal that synergistic fluorine-nitrogen interactions modulate electron distribution and polarization, creating asymmetric surface electron configurations and electron-deficient nitrogen vacancies. These properties trigger the selective generation of 1 O 2 from peroxymonosulfate (PMS) and improve the utilization of neighboring reactive oxygen species, facilitated by contaminant enrichment at the fluorine-carbon Lewis-acid adsorption sites. Utilizing these insights, we synthesize the catalyst through montmorillonite (MMT)-assisted pyrolysis (NFC/M). This method leverages the role of MMT as an in-situ layer-stacked template, enabling controlled decomposition of carbon, nitrogen, and fluorine precursors and resulting in a catalyst with enhanced structural adaptability, reactive site accessibility, and mass-transfer capacity. The NFC/M demonstrates an impressive 290.5-fold increase in phenol degradation efficiency than the single-site analogs, outperforming most of metal-based catalysts. This work not only underscores the potential of precise electronic and structural manipulations in catalyst design but also advances the development of efficient and sustainable solutions for water purification.
研究领域:
催化
·
环境科学
·
材料科学
·
水处理
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Qian Liu,Miao Li,Jiahao Zhou,Tianxing Ji,Xuna Liu,Zhongquan Zhong,Ping Yang
To address the issues of poor fluidity, significant loss during cycling, and unsuitability for industrial adsorption of lithium ion-sieve powders, the Ce 4+ -doped layered Mn-based lithium ion-sieve precursor (Li 1.37 Ce 0.001 Mn 1.22 O 3 ) was fabricated into spherical particles, by using blend of PVB and PMMA with anti-solvent phase inversion method. The incorporation of PMMA appropriately could increase the porosity and pore size of the spherical particles, while enhancing strength and compression resistance. The porosity of SCLMO was 47.86%, with particle size range of 1.5–2.0 mm. The maximum load capacity was 627.53 N, while the maximum stress was recorded at 233.46 MPa, and the Young’s modulus was 369.70 MPa. The adsorption process of corresponding lithium ion-sieve spherical particles (SCHMO) was characterized by both physical and chemical reactions, adhering to Langmuir adsorption isotherm model and following pseudo-second-order kinetics, with intraparticle diffusion being the dominant mechanism. After 15 adsorption cycles, the adsorption capacity of SCHMO for Li + stabilized at approximately 20 mg/g, with Mn dissolution loss ratio of less than 0.5%. In experiments involving the static adsorption of Li + from actual oil and gas field produced water, the adsorption capacity was recorded at 17.84 mg/g. The lithium ion-sieve spherical particles exhibited significant potential for further industrial applications.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121811
·
IF 7.5
Xiuchan Xiao,Jun Wang,Huamei He,Zhicheng Feng,Chaoran Duan,Jungang Yuan,Ya Liu
The high treatment costs and substantial energy consumption associated with high-salinity fracturing flowback fluids remain critical bottlenecks restricting the development of shale gas. This study constructed a functionalized layered oil-water hydrogel solar interfacial evaporator (FG-SWE), aiming to achieve low energy consumption and zero emission treatment of high-salinity fracturing flowback fluids. The evaporator was synthesized via one-pot polymerization and consists of three functional layers (top: MXene, middle: 12-hydroxystearic acid (HSA)-based, bottom: porous), each responsible for light absorption, thermal management, and water transport, respectively. Results showed that under one sun irradiation, FG-SWE demonstrated an evaporation rate of 2.80 kg m −2 h −1 and a photothermal conversion efficiency over 95 % in 10 wt% standard saline waters, with the hydrophobic area ratio of the evaporation interface set at 30 %. Furthermore, the phase-change heat storage layer has a melting enthalpy of 125.8 kJ kg −1 , enabling continuous nighttime evaporation with a daily water production of 17 kg·m −2 . Furthermore, the FG-SWE effectively treated high-salinity flowback fluid, reducing total dissolved solids content (TDS) from 8 × 10 4 mg L −1 to < 125 mg L −1 to meet drinking water standards. The evaporator also demonstrated excellent anti-fouling properties and long-term stability, retaining 90.7 % performance over 30 days of continuous operation. This study provides a promising technology for high-salinity wastewater, thereby supporting the green development of shale gas and enhanced recycling of water resources.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Shuo Gao,Wanru Feng,Junsu Jin,Jianguo Mi,Hong Meng
Structured adsorbents capable of combining strong low-pressure CO 2 affinity, high selectivity, and humidity tolerance are highly desired for low-concentration CO 2 capture, yet remain difficult to realize because shaping often compromises porosity and mass transport. Here, we report a solvent-directed and nanoconfined crystallization strategy to construct millimeter-sized polyacrylate (PA)-supported Zn 2 (Mtz) 2 Ox-EG sphere (Zn 2 (Mtz) 2 Ox-EG@PA). Ethylene glycol modulates the ultramicroporous environment of Zn 2 (Mtz) 2 Ox, enhancing its low-pressure CO 2 affinity, while the confined macroporous network of the PA matrix promotes heterogeneous nucleation and suppresses free crystal growth, sharply reducing the size of the micrometer-scale MOF bulk crystals by nearly 100-fold. The resulting Zn 2 (Mtz) 2 Ox-EG@PA composite exhibits a high CO 2 uptake for 1.68 mmol g −1 at 0.05 bar and 313 K, while N 2 and CH 4 adsorption are strongly suppressed. Consequently, high IAST selectivities of 3447 for CO 2 /N 2 and 1275 for CO 2 /CH 4 are achieved at a 5/95 gas ratio. The hydrophobic MOF framework and PA matrix endow the composite with excellent hydrothermal durability, retaining framework integrity after hot-water treatment at 403 K for 7 days. Dynamic breakthrough experiments further demonstrate efficient CO 2 /N 2 separation from a 5 vol% CO 2 stream at 90% RH, highlighting the potential of nanoconfined MOF crystallization for robust structured adsorbents under humid dilute-CO 2 conditions.
✓ 已验证
产品关联
DOI
高影响因子
Polymer Chemistry
·
2025
·
IF 3.9
Jiayi Zhang,Ruyue Cao,Xiaowei Wang,Yixuan Wang,Anchao Feng
This study introduces a novel approach combining reversible addition–fragmentation chain transfer (RAFT) polymerization and hetero-Diels–Alder (HDA) reactions to efficiently synthesize hyperbranched polymers (HBPs) with controlled topology. The traditional ABn monomer methods for creating HBPs face limitations due to random polymerization and the risk of gelation. By optimizing the ABn system into an ABx macromonomer framework, this new RAFT–HDA method enables controlled polymerization, reducing intramolecular cyclization and topological defects and broadening the range of possible polymer architectures. Additionally, more readily available and widely used novel dienes and dienophiles have been identified for the HDA reaction. The versatility of this approach was demonstrated by synthesizing a variety of HBPs with different branching degrees and molecular weights, which were thoroughly characterized by NMR, FTIR, GPC, and DLS techniques. This study provides a robust and efficient pathway for synthesizing complex polymer structures, demonstrating that the RAFT–HDA strategy enables the production of well-defined hyperbranched polymers with significant potential for applications in nanomaterials, biomedicine, and advanced functional materials.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2019
·
IF 7.65
Ming-Yong Zhou,Peng Zhang,Li-Feng Fang,Bao-Ku Zhu,Jian-Li Wang,Jiang-Hua Chen,Heba Abdallah
The development of highly efficient membranes technology using low-pressure driven filtration process, is one of the principal challenges in the wastewater treatment field, especially those aimed at the removal of trace heavy metals. In this work, a novel positively charged tight ultrafiltration (PCTUF) membrane was developed to remove heavy metal cations (Mn 2+ , Co 2+ , Ni 2+ , Zn 2+ and Cd 2+ ) from contaminated waters via electrostatic repulsion mechanism. The PCTUF membrane was fabricated from a new polymer with poly (vinyl chloride co dimethylaminoethyl methacrylate), P (VC- co -DMA) via a nonsolvent induce phase separation (NIPS) process and following facile surface quaternization. The quaternization conditions, the pore structures and chemical properties of the membranes were investigated in detail. The optimally quaternized membrane possessed a positively charged surface and 3.27 nm charged channel with the water permeability of 84 L m −2 h −1 bar −1 . The rejections of heavy metal cations surpassed 95% for feed solutions containing 10 ppm heavy metal. Moreover, the influences of feed concentrations and the operating condition with pressure and pH on the membrane performances were also investigated. The results revealed that the prepared PCTUF membrane with its high perm-selectivity performance provides a worthy reference for highly efficient removal of heavy metal cations.
研究领域:
环境科学
·
材料科学
·
废水处理技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2016
·
IF 7.145
Zhao Dang,Libin Liu,Yan Li,Yu Xiang,Gailan Guo
The development of stimuli-responsive materials with the ability of controllable oil/water separation is crucial for practical applications. Here, a novel pH responsive nonfluorine-containing copolymer was designed. The copolymer together with silica can be dip-coated on different materials including cotton fabric, filter paper, and polyurethane foam. The coated materials exhibit switchable superhydrophilicity and superhydrophobicity and can be applied in continuous separation of oil/water/oil three phase mixtures, different surfactant stabilized emulsion (oil-in-water, water-in-oil, and oil-in-acidic water) as well as oil uptake and release via in situ and ex situ pH change. We expect that the coatings highlight the practical applications because of the cost-effective preparation process and fluorine-free strategy.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2019
·
IF 6.044
WenBo Du,Amin Deng,Juan Guo,Jian Chen,Huaming Li,Yong Gao
In this work, a novel strategy for the construction of injectable self-healing nanocomposite (NC) hydrogels dominated by reversible boronic ester bonds was demonstrated. Specifically, NC hydrogels were constructed by the solution-mixing of N,N -dimethylacrylamide- stat -3-acrylamidophenylboronicacid statistical copolymers (PDMA- stat -PAPBA) and poly(glycerolmonomethacrylate) (PGMA) chains grafted cellulose nanocrystals (CNC- g -PGMA). Rheology analysis indicated the as-constructed NC hydrogel displayed about 7-fold increase in the storage modulus with a low CNCs loading level of 1.43 wt% in comparison with PGMA/PDMA- stat -PAPBA hydrogel without CNCs. Furthermore, the mechanical strength of the CNC- g -PGMA/PDMA- stat -PAPBA hydrogel was far superior to that of its PGMA/PDMA- stat -PAPBA/CNCs hydrogel counterpart, in which PGMA chains were not covalently grafted on the surfaces of CNCs. Due to reversible boronic ester bonds cross-linking networks, CNC- g -PGMA/PDMA- stat -PAPBA NC hydrogel exhibited excellent self-healing and injectable properties as well as pH/glucose responsive sol-gel transitions. Good biocompatibility was also demonstrated through in vitro cytotoxicity tests.
研究领域:
材料科学
·
纳米技术
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MACROMOLECULAR RAPID COMMUNICATIONS
·
2025
·
IF 4.3
Sujan Tiwari,Al-Hassan S. Mahdy,Namrata Sapkota,Ibrahim M. Ammar,Saikat Kumar Panja,Shiling Zhang,Xianzhu Zheng,Qi Xing,Jin Geng
The design of polymeric materials with well-defined, tunable properties is essential for advancing drug delivery systems and other biomedical applications. Optimizing key parameters such as size, surface charge, and temperature responsiveness can enhance targeted drug delivery efficiency and biocompatibility. In this study, we synthesized a series of fluorescently labeled polymers with varying molecular weights and charges via reversible addition-fragmentation chain transfer (RAFT) polymerization to investigate their role in cellular uptake. Comprehensive characterization confirmed that these polymers exhibited precise size and charge distributions, enabling controlled interactions with biological systems. Cellular uptake studies in HeLa cells revealed a strong dependence on polymer size, charge, and temperature, with smaller and positively charged polymers demonstrating superior internalization under physiological conditions (37°C). Further analysis showed that the polymers predominantly localized in endosomes and lysosomes, indicating endocytosis as the primary internalization pathway across different polymer charge types. Overall, these findings provide preliminary insights into how polymer physicochemical properties modulate cellular uptake, which may inform the design of future polymer-based drug delivery systems.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2025
·
IF 4
Xinrui Xu,Xiaomeng Wang,Hongchuan Wang,Zhiyong Chen
Green liquid chromatography (LC) has garnered increasing attention; however, its adoption as a replacement for conventional methods is limited by inferior separation performance. Herein, we present a fully integrated design for green LC, encompassing biomass-derived starting materials, the green synthesis of a solid stationary phase, and environmentally benign separation using ethanol as the mobile phase. Via a green precipitation polymerization technique (room temperature quiescent redox-initiated precipitation polymerization, RTQRPP), we synthesized a series of monodisperse microspheres derived from natural fatty acids. Notably, microspheres composed of poly(divinylbenzene-co-tetradecyl methacrylate) (P(DVB-TMA))-where tetradecyl methacrylate (TMA) is derived from myristic acid-exhibited a uniform particle size of 4.6 μm (polydispersity index, PDI < 1.01). The resulting P(DVB-TMA) material displays exceptional superoleophilicity and superhydrophobicity, with water contact angles reaching 160 ° Consequently, columns packed with P(DVB-TMA) generated significantly lower back pressure under pure water compared to commercial C18 silica columns. Furthermore, when using an ethanol mobile phase, the P(DVB-TMA) column successfully achieved baseline separation of a four-component dye mixture, demonstrating markedly better resolution than a commercial C18 column under identical conditions. Molecular dynamics simulations and density functional theory calculations confirmed a strong reversed-phase retention mechanism, with elution order correlating with decreasing aqueous solubility (Log S) at 25 ℃. The column reproducibility is proved by that the relative standard deviations (RSD) of retention times can be controlled in 0.40∼0.70 % for the intra-day and 0.77∼1.84 % for the inter-day tests, respectively. Our findings establish this novel stationary phase as a superior, greener alternative to commercial columns for target compound separation.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Ju Bai,Luqi Xiao,Hongyan Liu,Can Wang,Tianliang Han,Lili Gong,Shuangjiang Luo,Hongwei Fan,Linglong Shan
Mixed matrix membranes (MMMs) are emerging as a competitive option in gas separation owing to their ability to mitigate the trade-off. Metal-organic polyhedra (MOPs) are a family of self-assembled structures consisting of metal ions and ligands, which are nanoscale cage-like molecules with independent units and excellent dispersion properties, while maintaining the similar pore structure of metal-organic frameworks (MOFs). Herein, Zr-MOP was incorporated as a filler in polybenzimidazole (OPBI) to achieve a high MOP loading of 50 wt%. The membrane with highly dispersed MOPs effectively prevents the excessive collaps of OPBI under the thermal treatment at 600 °C. The synergistic combination of Zr-MOP and OPBI yields perfectly dense, defect-free membranes with uniform pores and superior gas molecular selectivity. The optimal Zr-MOP 50 wt% @OPBI 600 membrane exhibited a remarkable He/CH 4 selectivity of 785, which is 4 times higher than the pristine OPBI membrane, alongside a high He permeability of 147 Barrer. Furthermore, the membrane demonstrated excellent high-pressure stability and long-term durability.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）