ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2019
·Vol. 26
·期 31
·32345-32359
·
IF 2.914
Yu Binglong,Wang Jie,Yang Xiaoxin,Wang Wenlong,Cai Xiulan
In this paper, we synthesized a polyglycerol(PG)-mediated superparamagnetic graphene oxide nanocomposite called MGON, consisting of PG-modified superparamagnetic iron oxide nanoparticles (SPION) covalently bonded to PG-functionalized graphene oxide (GO). MGON exhibits better dispersibility and colloidal stability in aqueous solution than the magnetic graphene oxide reported in the literature. The physicochemical properties of MGON were analyzed by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), and UV-vis spectroscopy. Applied to the adsorption of tetracycline (TC) in aqueous solution as an adsorbent, the MGON showed excellent adsorption performance with the maximum adsorption capacity of 684.93 mg/g at 298 K. Adsorption kinetics and isotherm results indicate that the adsorption process conforms to the pseudo-second-order kinetics and Langmuir isotherm models. Adsorption thermodynamics has confirmed that the adsorption process of TC on MGON is spontaneous and endothermic. With the increase of temperature, the adsorption capacity of MGON increases continuously, and the adsorption capacity of MGON is the largest when the pH value is 7. Furthermore, the π-π and cation-π interaction, amidation reaction, and hydrogen bonding can be used to explain the adsorption mechanism of TC on MGON. Desorption and regeneration experiments showed that MGON still had 67.65% regenerative performance after five cycles. Hence, MGON is a promising adsorbent in the removal of tetracycline from wastewater.
研究领域:
环境科学
·
纳米材料学
·
污染物吸附
·
水污染治理
·
环境功能材料
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF PHARMACEUTICS
·
2014
·
IF 3.785
Ling-Ran Du,Xiao-Jing Lu,Hai-Tao Guan,Yong-Jie Yang,Meng-Jie Gu,Zhuo-Zhao Zheng,Tian-Shi Lv,Zi-Guang Yan,Li Song,Ying-Hua Zou,Nai-Qi Fu,Xian-Rong Qi,Tian-Yuan Fan
New type of liquid embolic agents based on a liquid crystalline material of glyceryl monooleate (GMO) was developed and evaluated in this study. Ternary phase diagram of GMO , water and ethanol was constructed and three isotropic liquids (ILs, GMO:ethanol:water = 49:21:30, 60:20:20 and 72:18:10 (w/w/w)) were selected as potential liquid embolic agents, which could spontaneously form viscous gel cast when contacting with water or physiological fluid. The ILs exhibited excellent microcatheter deliverability due to low viscosity, and were proved to successfully block the saline flow when performed in a device to simulate embolization in vitro . The ILs also showed good cytocompatibility on L929 mouse fibroblast cell line. The embolization of ILs to rabbit kidneys was performed successfully under monitoring of digital subtraction angiography (DSA), and embolic degree was affected by the initial formulation composition and used volume. At 5th week after embolization, DSA and computed tomography (CT) confirmed the renal arteries embolized with IL did not recanalize in follow-up period, and an obvious atrophy of the embolized kidney was observed. Therefore, the GMO-based liquid embolic agents showed feasible and effective to embolize, and potential use in clinical interventional embolization therapy.
研究领域:
生物材料学
·
介入放射学
·
药剂学
·
血管内治疗
·
转化医学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS CHEMISTRY
·
2011
·Vol. 21
·期 18
·6569-6575
·
IF 5.101
Xintao Luo,Jishu Han,Yang Ning,Zhe Lin,Hao Zhang,Bai Yang
1-Thioglycerol (TG)-stabilized quantum dots (QDs) are good candidate for performing a stepwise polymerization reaction with polyurethane (PU) prepolymers, but their use is limited by their worse photoluminescence (PL) in comparison to QDs stabilized by other mercapto-ligands. To overcome this problem, TG-stabilized CdTe QDs with enhanced PL were synthesized in water through a N2H4-promoted growth approach. The current synthesis significantly shortened the duration of the size evolution of QDs, particularly for obtaining samples with orange and red emissions. It also permitted QD growth at low temperatures, such as room temperature, which avoided the decomposition of TG and subsequent embedment of sulfur into the QDs as occurs in the conventional synthesis. Most importantly, the TG ligand endowed the QDs with hydroxyl coverage, making the QDs miscible with PU prepolymers in dimethyl sulfoxide, and therefore overcoming the main problem in fabricating PU-based nanocomposites of eliminating water. The hydroxyl coverage further allowed for the linkage of PU on the surface of the QDs through the reaction between –OH and –NCO, producing CdTe QD–PU bulk nanocomposites. Systematic characterization indicated that the QDs were well dispersed in the PU medium, and the size-dependent PL of QDs was also maintained.
研究领域:
材料科学
·
纳米科技
·
高分子化学
·
光电子学
·
胶体与界面化学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 49
·42854-42862
·
IF 3.289
He Liu,Aiting Wang,Xu Xu,Mengmeng Wang,Shibin Shang,Shiwei Liu,Jie Song
Cellulose aerogels based on crosslinking of cellulose with 1,4-butanediol diglycidyl ether (BDE) were homogeneously synthesized in NaOH/urea aqueous solution followed by freeze-drying. In the NaOH/urea aqueous solution, cellulose existed in a sodium alkoxide form that could react with the epoxide groups of BDE. The rheological behavior of the cellulose/NaOH/urea aqueous solution showed that the crosslinking reaction occurred immediately once the BDE was added to the cellulose/NaOH/urea aqueous solution at room temperature. The X-ray diffraction (XRD) characterization identified a transition from the crystalline structure of cellulose to an amorphous state of cellulose aerogels with increasing amount of BDE. Elemental analysis revealed the variation in carbon and oxygen elemental percentages in cellulose aerogels caused by the reaction between cellulose and BDE. The porous network of aerogels was observed by scanning electron microscopy (SEM) and the pore size of the aerogels increased as a function of BDE. The water adsorbent ability of aerogels was up to 41 g g−1—even after 30 squeezing–adsorption cycles, the water adsorbent ability was still 37 g g−1.
研究领域:
高分子材料科学
·
纳米材料学
·
绿色化学
·
生物基功能材料
·
环境功能材料
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2018
·Vol. 135
·期 32
·46579
·
IF 1.901
Xie Li,Wei Li,Zhiqing Liu,Xiaolin Wang,Heling Guo,Rongjie Wang,Xuhong Guo,Cuihua Li,Xin Jia
Polyurethane (PU) has been widely used as a glue in various areas. However, adhesion in the presence of water is greatly impeded and results in most synthetic adhesive failure. In this study, we designed and synthesized a novel PU construction; underwater PU adhesives were created by the incorporation of synthetic glycerol monomethacrylate (GMA). Furthermore, the urethane structure helped the adhesive eliminate the interfacial water barrier through interactions that were stronger than hydrogen bonding, and GMA as a crosslinking agent was used to generate post-covalent-crosslinking networks through radical polymerization. This enhanced the cohesion so the diffusion of water molecules could be overcome. Fourier transform infrared spectroscopy, thermogravimetric analysis, underwater adhesion measurements, and tensile tests were used to characterize the chemical and mechanical properties of the as-obtained adhesive. This led to an adhesive with a better mechanical strength and interfacial adhesion in water, and the results show that the mechanical properties (tensile strength, Young's modulus, and tensile elongation) of the GMA–PU adhesive were higher than those of the pure PU. As for the 4% GMA, the tensile strength was enhanced by 24.3% and the elongation was enhanced by 125.23% over those of the pure PU. This confirmed that the incorporation of GMA into the PU matrix indeed induced increasing cohesion, and the sample's adhesive strength was 21.19 ± 3.9 MPa; this indicated a superior adhesive strength over that of the pure PU. In addition, we can foresee that underwater adhesion will play an important role in prospective surgery and engineering areas. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46579.
研究领域:
高分子材料
·
生物医学工程
·
粘附科学
·
组织工程
·
医用胶粘剂
✓ 已验证
DOI
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
·
2019
·
IF 2.29
Junjie Chen,Bo Jin,Guan Luo,Huihui Liu,Qingchun Zhang,Qi Huang,Rufang Peng
The thermodynamics and kinetics of the curing reactions between polyglycidyl nitrate (PGN) and toluene diisocyanate, isophorone diisocyanate, and polyaryl polymethylene isocyanate (PAPI) were studied by microcalorimetry. The reaction rate between PGN and PAPI was the fastest among the three reactions above. Three thermodynamics ( i.e. , activation enthalpy, entropy, and free energy), rate constant, and three thermokinetic parameters ( i.e. , activation energy, pre-exponential constant, and reaction order) of the curing reactions were obtained by calculating the results of the reaction between PGN and PAPI at a series of temperature from 303.15 K to 318.15 K. The linear relationship between ln k and the mole ratio of the isocyanate and hydroxyl groups was observed. The corresponding kinetic equation describing the curing reaction between PGN and PAPI was d α /d t = 10 −3.83 (1 − α ) 3.04 at 318.15 K.
研究领域:
高分子化学
·
热力学
·
反应动力学
·
功能材料
·
含能材料
✓ 已验证
DOI
高影响因子
JOURNAL OF FOOD PROTECTION
·
2018
·Vol. 81
·期 10
·1643-1650
·
IF 1.51
Huqing Yang,Xia Li,Guoquan Lu
Because of high water loss and rot observed in postharvest sweet potato ( Ipomoea batatas (L.) Lam.) roots, a carnauba wax (CW)–based nanoemulsion without or with glycerol monolaurate (CW-GML) was developed by a high-energy emulsification approach. The effects of the two coatings on decay, respiration rate, weight loss, surface color, total soluble sugar, and starch content as well as the sensory quality of sweet potato roots were investigated during storage at 20°C for 50 days. Compared with the control treatment (water) and CW coating alone, CW-GML coating exhibited higher emulsion stability and antifungal activity, and treatment resulted in a uniform and continuous coating on roots. The CW-GML and CW coatings both effectively reduced root weight loss and respiration rate and inhibited decay incidence compared with control roots during storage. The CW-GML coating showed markedly stronger inhibition of root rot than the CW coating. Both the CW-GML and CW coatings promoted an increase in root sweetness but did not negatively impact perceived flavor. The overall results demonstrate that the CW-GML coating holds great promise as an effective postharvest technology to preserve food quality and extend shelf life of sweet potato roots.
研究领域:
食品科学
·
采后生物学
·
农产品贮藏
·
食品保鲜技术
·
应用植物学
✓ 已验证
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Jiayu Xie,Xuran Jin,Hong Cheng,Wei Chen,Wancheng Yu,Linlin Wang
Glycerol has been proved to be an effective plasticizer for polyvinyl alcohol (PVA), which can significantly increase PVA’s processability and ductility, whose molecular origin remains unclear. In current study, the physical structure and chain dynamics of polyol plasticized PVA were studied in detail, including ethylene glycol , glycerol, erythritol , xylitol , and sorbitol under the same addition level. The glycerol plasticized PVA exhibits the most significant reduction in Young’s modulus, enhanced superior toughness, and the lowest melting temperature (195 °C) as compared with other polyols. The molecular mechanism was elucidated through comprehensive analysis, with a particular focus on solid state NMR (SS NMR) results. The physical structure was first elucidated by the Small Angle X-ray Scattering (SAXS) and Wide Angle X-ray Scattering (WAXS). The crystallinity of the glycerol plasticized PVA was the lowest 29 % by WAXS and the thickness of the amorphous layer was the largest 7.76 nm by SAXS among different plasticized PVA films. This suggests the significant influence of glycerol on structure change of PVA. The molecular dynamics information was further accessed by Low Field Nuclear Magnetic Resonance (LF NMR), where two key features are obtained: i) Different dynamics dimensionality. The 1 H spin diffusion NMR was used to check the dimensionality from the aspect of chain dynamics. Compared with other plasticizers, LF NMR result shows that glycerol plasticized PVA has a two-dimensional (2D) structure; ii) Chain dynamics heterogeneity in the interphase . With respect to the chain dynamics heterogeneity in the interphase, the glycerol plasticized PVA shows the most heterogeneous dynamics, with the lowest ratio of the rigid amorphous fraction (RAF) of 0.507 in the interphase. Current study provides a versatile analytical strategy to quantify the plasticizing effect.
✓ 已验证
产品关联
DOI
高影响因子
Food Chemistry-X
·
2024
·
IF 6.5
Jinman He,Wanli Zhang,Gulden Goksen,Mohammad Rizwan Khan,Naushad Ahmad,Xinli Cong
In this study, zein-pectin nanoparticles loaded with Wampee [ Clausena lansium (Lour.) Skeels] (WEO) were developed. The particle size of the nanoparticles is 515.9 nm, polydispersity index is 0.4 and zeta potential is −39.3 mV. Subsequently, the ZWP was incorporated into sodium alginate (SA)-based film (ZWP-S). The films were then analyzed to determine their physical properties and thermal stability, and also to examine their microstructure and intermolecular forces using SEM, FTIR, and XRD techniques. Additionally, the films were evaluated for their antimicrobial and antioxidant activity, as well as their ability to sustain the release of WEO. Overall, the ZWP-S film conferred excellent functional properties, including UV barrier performance, mechanical properties (21 % increase in tensile strength), water sensitivity, stability, more compact structure, high antioxidant activity and long-lasting antimicrobial activity, surpassing those of the control film. Consequently, it was applied as a novel coating for preserving strawberries, rotting rate of strawberries was reduced by 43 % at 6d, yielding promising results in prolonging the freshness of the fruit.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Zhang-Fu Shi,Peng Cheng,Yi-Fan Li,Jie Yang,Yan Chen,Xiao-Jing Guo,Xi Yan,Wan-Zhong Lang
Polyethylene glycol (PEG), a versatile non-ionic surfactant with excellent biocompatibility and robust chemical stability, offers significant potential for the precise regulation of interfacial polymerization (IP). In this study, PEG was introduced into the aqueous phase as an additive to modulate the interfacial diffusion behavior of piperazine (PIP). By systematically optimizing its molecular weight, concentration, and terminal group parameters, a polyamide (PA) active layer with a smaller and more uniformly distributed pore structure was successfully constructed. This optimized architecture effectively strengthened both the size exclusion and charge repulsion mechanisms of the nanofiltration (NF) membrane. Consequently, the optimal MP 1000 -10 membrane exhibited highly competitive NF performance, achieving an impressive Na 2 SO 4 rejection of 98.0% and a high water permeance of 11.5 L m −2 h −1 bar −1 . More importantly, tailoring the PEG terminal groups facilitated targeted control over the pore size and surface charge properties, significantly enhancing the removal of structurally and physicochemically diverse emerging organic contaminants (EOCs). Across a broad set of experimental parameters, PEG modification consistently delivers improved separation performance for membranes. With excellent stability, high efficiency and economic feasibility, this strategy provides solid technical and theoretical support for developing advanced separation membranes targeting high-efficiency EOCs removal.
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Xiaohui Li,Jingjing Zhu,Faying Miao,Yanan Li,Feiyang Wu,Ling Zhang,Caixia Feng,Li Wang,Zhixian Chang,Taifeng Liu,Ruifeng Chong
The pre-deposited Cu would regulate the growth of Co(OH) 2 precursors for CoOOH. • Pre-deposited Cu in-situ incorporation and reconstruction to form CoOOH/Cu/NF. • CoOOH/Cu/NF delivers 97.2% formate selectivity and 90.1% FE at 1.55 V vs. RHE. • GOR||HER saves 252 mV compared to conventional OER||HER at 10 mA cm -2 . • CoOOH/Cu/NF demonstrates exceptional stability during GOR coupled with HER process. Developing robust electrocatalysts for glycerol oxidation reaction (GOR) coupled with hydrogen evolution reaction (HER) offers a promising pathway for energy-efficient hydrogen production. Herein, we report a pre-electrodeposited copper-induced strategy to fabricate Cu-incorporated cobalt oxyhydroxide on nickel foam (CoOOH/Cu/NF) through two-step electrodeposition followed by in-situ electrochemical activation. Mechanistic investigations revealed that the pre-electrodeposited Cu species could not only regulate the growth of Co(OH) 2 precursors to form more ordered and open nanosheet network but also induce in-situ Cu incorporation into CoOOH to modulate the electronic structure, thereby enriching active Co 3+ species and optimizing glycerol adsorption. Benefiting from this morphological-electronic dual synergism, CoOOH/Cu/NF exhibited exceptional GOR performance with ultralow potentials of 1.272 and 1.408 V vs. RHE at 10 and 100 mA cm -2 , respectively. At 1.55 V vs. RHE, CoOOH/Cu/NF achieved 90.1% Faradaic efficiency and 97.2% selectivity toward formic acid. Furthermore, the coupled GOR||HER system delivered 10 mA cm -2 at only 1.55 V cell voltage, which was 252 mV lower than conventional water electrolysis, with excellent durability exceeding 70 h. This work provides a facile pre-deposited Cu method for designing high-efficiency electrocatalysts for biomass upgrading and energy-efficient hydrogen production. Download: Download high-res image (423KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Zilin Wang,Peng Tan,Boyan Wang,Yiwei Zou,Wenxi Gu,Jiuhong Yi,Qingwen Guan,Changhong Linghu,Songnan Qu,Bingpu Zhou,Iek Man Lei
Stretchable devices have driven technological advances across diverse fields, including medical sensing, electronic skins, and soft robotics. However, achieving high-performance stretchability often depends on toxic manufacturing, costly syntheses, and petrochemical materials, which conflict with sustainability goals. Here, we present a highly stretchable yet entirely natural biogel fabricated through a simple and environmentally benign process. Despite being derived from low‑cost, food‑grade, and fully biodegradable constituents, our biogel integrates dense intermolecular interactions to achieve a combination of top-performing attributes, including stretchability (∼700%), Young's modulus (∼1.3 MPa), fracture strength (∼2.8 MPa), burst pressure (∼900 mbar), ionic conductivity, and optical transparency. Its mechanical properties remain stable even after 30 days and in subzero temperatures. We showcase its versatility in various applications that demand high stretchability, including deformable sensors for falling object detection, smart electronic fibers for sign language detection, stretchable pneumatic grippers for handling fragile objects, and crawling robots that can serve as plant seed carriers. Our biogel offers a low-cost, sustainable alternative to traditional petrochemical-derived elastomers, opening new possibilities for transient, biodegradable soft devices.
✓ 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）