BIOSENSORS & BIOELECTRONICS
·
2016
·
IF 7.476
Min Cui,Zhiling Song,Yumin Wu,Bing Guo,Xiaojian Fan,Xiliang Luo
Biocompatible polymers, such as poly(ethylene glycol) (PEG), are of great significance in the development of bio-interfaces and biosensors, as they possess excellent biocompatibility and are easy for modification. A novel highly biocompatible polymer composite was synthesized herein through electrochemical polymerization of the conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) and a PEG derivative, 4-arm PEG terminated with thiol groups . The electrodeposited conducting polymer composite of PEG doped PEDOT (PEDOT/PEG) exhibited flake-like nanostructure , large surface area and outstanding stability. In order to further immobilize antibodies, gold nanoparticles (AuNPs) were introduced to the PEDOT/PEG composite surface through their unique interaction with the thiol groups . AuNPs modified PEDOT/PEG provided a desirable support for the immobilization of various biomolecules such as antibodies for alpha fetoprotein (AFP), a vital tumor biomarker for liver cancer. The fabricated AFP biosensor demonstrated favorable selectivity, high sensitivity, and ultralow detection limit. Furthermore, owing to the presence of PEG polymers that are highly hydrophilic , such AuNPs/PEDOT/PEG based AFP biosensor also exhibited good anti-fouling ability, and it was capable of assaying target AFP in 10% (V/V) human serum samples, indicating highly feasible potential for clinical diagnosis.
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DOI
高影响因子
Polymers
·
2021
·Vol. 13
·期 15
·2388
·
IF 4.329
Meina Xie,Daikun Jia,Jin Hu,Jiyu He,Xiangmei Li,Rongjie Yang
In this study, the aromatic acetylene compound 4-(phenylethynyl) di(ethylene glycol) phthalate (PEPE) was used as a chain extender, partially replacing 1,4-butanediol. To synthesize an intrinsic flame-retardant thermoplastic polyurethane elastomer (TPU) with an aromatic acetylene structure, PEPE was synthesized by a two-step polymerization. The flame retardancy, thermal stability, and mechanical properties of TPU were studied. The microstructure of TPU char was investigated by scanning electron microscopy to analyze the flame-retardant mechanism. The tensile strength of TPU containing 1.35 wt% PEPE was 39.2 MPa, which was almost twice as much as neat TPU, showed a dramatic decrease in the peak heat release rate and total heat release, and declined by 46.2% and 24.5%, respectively. After the flame-retardant TPU burned, a cross-linked network foaming char structure was formed. The results showed that PEPE improved the mechanical properties of TPU and conferred good stability that promoted the formation of charcoal and reduced heat release during the combustion of TPU.
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DOI
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
·
2019
·
IF 2.29
Hui Guo,Xiaoqin Shi,Shufeng Shen
Non-aqueous mixtures of monoethanolamine (MEA) with glycol ethers as low viscosity absorbents have potential advantages for CO 2 capture. In this work, physical solubility of N 2 O and CO 2 in glycol ethers (2-methoxyethanol and 2-ethoxyethanol) and their blends with MEA was measured and correlated at temperatures ranging from (293.15 to 333.15) K. Physical solubility of CO 2 in the blends was also estimated by N 2 O/CO 2 analogy method. A mathematic model based on the reaction mechanism was proposed to interpret the vapour-liquid equilibrium data for the systems of CO 2 /MEA/glycol ether solution. Results show that glycol ethers have greater ability to dissolve CO 2 than glycols and water. The apparent chemical equilibrium constant was obtained and correlated as a function of temperature by non-linear regression. The proposed model could reasonably fit the experimental data with an average absolute deviation within 10%. The heat of absorption of CO 2 in MEA/glycol ether systems was also calculated.
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DOI
高影响因子
Journal of Macromolecular Science Part A-Pure and Applied Chemistry
·
2016
·
IF 0.963
Xuelin Huang,Jing Guo,Xueyong Gong,Shenglin Li,Yumei Gong,Qingda An,Sen Zhang,Fucheng Guan
Pentaerythritol/butane tetracarboxylic acid/polyethylene glycol (PBPEG) crosslinking copolymers as a novel solid-solid phase change material (SSPCM) were successfully synthesized through the reaction mechanism and conditions of hydroxyl-carboxyl condensation reaction. The composition and chemical structure, crystalline properties, phase change behaviors, thermal reliability and chemical stability of PBPEG crosslinking copolymers were investigated by Fourier transform infrared spectroscopy (FT-IR), wide-angle X-ray diffraction (WAXD), polarization optical microscopy (POM), differential scanning calorimetry (DSC), and thermogravimetry (TGA), respectively. The results show that PBPEG crosslinking copolymers have typical solid-solid phase transition temperatures in the range of 10.31∼53.27°C and high latent heat enthalpy in the range of 89.6∼102.8 J/g, the synthesized SSPCMs have good thermal reliability and chemical stability after 300 thermal cycles, and PBPEG crosslinking copolymers have good thermal stability before 364°C. In summary, the synthesized PBPEG crosslinking copolymers could be potentially used for thermal energy storage.
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DOI
高影响因子
Science China-Materials
·
2020
·Vol. 63
·期 9
·1731-1740
·
IF 6.098
Zhan Changhong,Yu Zijia,Liu Zheng,Chen Yong,Chen Delun,Tu Jinchun,Wu Qiang,Zhang Xiaolin,Cao Yang
As a half-reaction to obtain high-efficiency and stable water-splitting, oxygen evolution reaction (OER) is a slow-kinetics process involving a four-electron (4e - ) transfer process and therefore requires catalysts to fasten electron transfer. Here, we rationally optimized an interface material of ceria nanoparticles and nickel hydroxide by adsorbing ethylene glycol (EG-Ni(OH) 2 @CeO 2 ), which produced ultrasmall nanosheets uniformly attached onto carbon cloth substrate. According to the characterization and density functional theory (DFT), the ethylene glycol-induced nickel-cerium interface had strong electron interaction, generating numerous of Ni (3-δ)+ active sites, reducing the energy reaction barrier, and promoting the electron-transport kinetics in the catalytic system. EG-Ni(OH) 2 @CeO 2 showed excellent OER performance, with a low overpotential (335 mV) at 50 mA cm -2 and a small Tafel slope (67.4 mV dec -1 ). And the EG-Ni(OH) 2 @CeO 2 also maintained stable for up to 60 h at 10, 20, and 30 mA cm -2 . Overall, this research shows the significance of the interface engineering of metal materials based on organic-solvent adsorption to improve the electrocatalytic OER process.
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高影响因子
DYES AND PIGMENTS
·
2025
·
IF 4.2
Zhiyu Wang,Peixi Li,Li Yang,Shuangshuang Wang,Lei Zhao,Jiajun Liang,Yuan Liu,Chao Xu,Yanjun Zhang
Iron and copper ions has been confirmed to be an impurity generated during the production of coal-based ethylene glycol. Therefore, a highly sensitive fluorescent probe based on N-doped carbon dots (N-CDs) is constructed by two different mechanisms for the independent detection of Cu 2+ and Fe 3+ in ethylene glycol. In this method, Cu 2+ undergoes an oxidation-reduction reaction with o -phenylenediamine (OPD), leading to the formation of 2,3-diaminophenazine (oxOPD). oxOPD emits a fluorescence signal, and simultaneously, fluorescence resonance energy transfer (FRET) occurs between N-CDs and oxOPD, resulting in the quenching of the fluorescence intensity of N-CDs. Owing to the selective oxidation reaction and colorimetric response of OPD with Cu 2+ , a ratiometric fluorescent and colorimetric dual-signal probe for detecting Cu 2+ is successfully developed. Furthermore, Fe 3+ can effectively quench the fluorescence of N-CDs through the static quenching. Under optimized conditions, the probe demonstrates excellent selectivity and sensitivity to Cu 2+ and Fe 3+ , a wide linear response range and a low detection limit (LOD). The probe was applied to the detection of Cu 2+ and Fe 3+ in various types of industrial ethylene glycol (high ethylene glycol content, industrial-grade ethylene glycol and polyester-grade ethylene glycol) with satisfactory recovery rate. The probe provides a promising prospect for the routine detection of Cu 2+ and Fe 3+ in industrial ethylene glycol.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Yi Ma,Huan Ge,Yong Zhang,Ning Jian,Jing Yu,Jordi Arbiol,Canhuang Li,Yue Zhong,Luming Li,Hui Kang,Jun Wang,Andreu Cabot,Junshan Li
The electrocatalytic oxidation of small organic molecules, such as ethylene glycol (EG), can be paired with the hydrogen evolution reaction (HER) to effectively lower the overall cell voltage, thereby enhancing energy efficiency for hydrogen production. Moreover, the anodic EG oxidation reaction (EGOR) can generate valuable C1 and C2 compounds, offering a sustainable approach to greener chemical production. The industrial viability of this process requires nonprecious metal electrocatalysts that demonstrate high performance at low potential and exhibit high selectivity. In this study, we report on a cost-effective electrocatalyst based on a nickel sulfide phase (Ni3S2) heterogeneously nucleated on the surface of nickel–iron-manganese layered double hydroxide (NiFeMn-LDH) nanosheet arrays and supported on nickel foam (NF), demonstrating exceptional activity for the coupled HER and EGOR in alkaline conditions. This Ni3S2@NiFeMn-LDH/NF catalyst achieves an EG-to-formate faradaic efficiency of up to 90% at 1.5 V, with glycolate and oxalate as minor byproducts. Density functional theory calculations reveal that the EGOR was facilitated by the phase-separated Ni3S2, which lowers the energy barrier of the rate-limiting step. This work presents a promising, sustainable pathway for hydrogen production alongside value-added chemical generation from the electrooxidation of EG.
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高影响因子
MACROMOLECULAR CHEMISTRY AND PHYSICS
·
2025
·
IF 2.7
Yunhui Cai,Yixiang Chen,Lijun Fan,Xianhong Zhang,Wantai Yang
Herein, two categories and four kinds of novel eco-friendly plasticizers, cyclohexanecarboxylic acid-based methoxypolyethylene glycols (H-MPEG200 and H-MPEG400) and cyclohexanecarboxylic acid-based polyethylene glycol (H-PEG200 and H-PEG400), are synthesized via the esterification reaction. Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance spectroscopy (1H NMR) certified the successful synthesis of precise target structure. Thermogravimetric analysis (TGA) results revealed that both H-MPEG and H-PEG have better thermal stability than dioctyl phthalate (DOP). Subsequently, the plasticization efficiency of H-MPEG and H-PEG is investigated systematically by replacing a portion of DOP in a soft poly(vinyl chloride) (PVC) system. The rheological results indicated that the fusion time, fusion torque, and equilibrium torque of PVC blends have a slight decrease in comparison to that of DOP at a similar content of total plasticizer. The TGA analysis demonstrated the PVC films plasticized with H-PEG400 or H-MPEG exhibited better thermal stability than other plasticizers. Among them, H-MPEG has higher plasticizing efficiency than DOP, in which the glass transition temperature ( T g ) is −2.34 °C for PVC/H-MPEG200 and −6.27 °C for PVC/H-MPEG400, respectively. Meanwhile, the H-PEG and H-MPEG showed outstanding compatibility with the PVC matrix, endowing the PVC blends with high transmittance.
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DOI
高影响因子
CELLULOSE
·
2024
·
IF 4.9
Tang Ruihua,Yan Xueyan,Hu Jie,Luo Yining,Giesy John P.,Xie Yuwei,Yin Huancai
Rapid nucleic acid testing (NAT) technology as an effective tool for point-of-care testing (POCT), has been widely used for health, food additive, and environmental pollution monitoring. Nucleic acid extraction (NAE) is a vital first step of NAT technology, including sample lysis, washing and elution. At present, storage of sample lysis solution for rapid NAE methods is expensive, complex and environmentally unfriendly. To address these drawbacks, a low-cost, rapid, simple, and portable material is urgently needed. Herein, we developed a pH-responsive carboxymethyl chitosan/sodium alginate/polyethylene glycol (CMCS/SA/PEG) composite hydrogel that works as a physical crosslink, then used it to store sample lysis solutions for the dry immersion method for NAE. Results showed that the CMCS/SA/PEG6000 composite hydrogel had large pore size (256.58 ± 5.58 μm), good wet strength (282.3 Kpa), excellent swelling rate (706.91 ± 6.69%), high loading capacity (90.46 ± 1.13%), good degradation capacity (77.87 ± 1.45%), and rapid response time (15 s). The CMCS/SA/PEG6000 composite hydrogel could be loaded into a syringe and combined with filter paper to function as a simple NAE device. Efficiency of lysis of nucleic acid of saliva, whole blood, E.coli and S.aureus was 20.71 ± 0.12%, 9.59 ± 0.12%, 16.57 ± 0.19%, and 29.16 ± 0.07%, respectively. Also, nucleic acid was successfully extracted from a 30 μL sample of saliva so the method has potential to be integrated into other platforms for NAT.
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高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2024
·
IF 8.1
Tao Shi,Huan Liu,Xiaodong Wang
We have developed a novel type of flexible multi-stimuli-responsive shape memory composite system based on a melamine/polydopamine (PDA)/Fe 3 O 4 /phosphorene (PR) complex foam and poly(ethylene glycol) (PEG). The system was constructed through coating PDA on the skeleton of the melamine foam and then decorating the PDA layer with Fe 3 O 4 and PR nanosheets, followed by vacuum impregnation of PEG. The resultant composites exhibit an intrinsic thermal-driven shape memory behavior with a high shape recovery ratio of around 100% thanks to their high latent heat capacity derived from the loaded PEG. The introduction of magnetic Fe 3 O 4 nanoparticles and PR nanosheets not only enhances the thermal conductance of the composites but also generates good magnetic and photothermal responsiveness. This enables the composites to obtain good light- and magnetic-driven shape memory capabilities in a shorter shape recovery period. This study offers a new strategy for developing smart materials with multiple and effective response to light, heat, and magnetism.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·Vol. 142
·期 33
·e57305
·
IF 2.8
Xinyang Gao,Zhixiang Huang,Xueen Li,Jun Zhou,Panling Huang
In deep brain stimulation (DBS), metal cannulas for flexible electrode implantation risk secondary tissue injury. This study proposes silk fibroin/polyethylene glycol (SF/PEG) composite coating as a biodegradable alternative. Fourier transform infrared spectroscopy (FT-IR) confirmed PEG incorporation in SF matrices (1:1 and 10:1 ratios). Nanoindentation revealed PEG reduced elastic modulus from 9.4 GPa (pure SF) to 3.9 GPa (SF/PEG 1:1) and enhanced ductility. Degradation tests showed SF/PEG 1:1 achieved near-complete weight loss within 72 h in PBS at 37°C, while SF/PEG 10:1 exhibited slower degradation. These results demonstrate SF/PEG composites as tunable, rapidly degradable coatings for DBS electrodes, eliminating cannula removal and improving surgical safety.
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高影响因子
ACS Biomaterials Science & Engineering
·
2025
·
IF 5.5
Xiaojuan Chen,Bojia Li,Bin Zhou,Bin Li,Hongshan Liang
Bioactive components, especially hydrophobic functional molecules, have inspired various nanobiotechnology approaches to stabilize and further realize their biological functions, particularly in vivo delivery. Desirable features of a delivery system for functional molecules should possess high biocompatibility, favorable encapsulation capacity, and simple fabrication processes without requiring chemical modification of the molecule itself. Herein, we report a facile and low-cost approach, based on tannic acid–polyethylene glycol (TA–PEG)-mediated assembly, for assembling citrus-derived nobiletin into nanoparticles (i.e., NTP NPs) under aqueous conditions. The resulting multifunctional spherical NPs with long-term stability and desirable encapsulation efficacy are mostly facilitated by hydrogen bonding and π interactions, as confirmed by in-depth spectroscopic analyses. Incorporating fluorophores into NTP NPs enables the visualization of intracellular transport and biodistribution at different time points, revealing that most of these NPs achieved enhanced cellular uptake and transport efficiency and prolonged intestinal retention, comparable to that of free nobiletin. This work provides a viable strategy for the rational design of hydrophobic functional molecule nanoparticle delivery platforms tailored for diverse biological applications.
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）