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2016
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2016年论文 1. Liu, Xinhua Yin, Chengyao Yang, Jie Liang, Meiying Wei, Junjie Zhang, Ziyang Wang, Huanlei Wang, Qigang Controllable preparation of an eggshell membrane supported hydrogel electrolyte with thickness-dependent electrochemical performance JOURNAL OF MATERIALS CHEMISTRY A VL 4 IS 46 BP 17933 EP 17938 DI 10.1039/c6ta07341g PD 2016 PY 2016 The preparation of thin gel electrolyte membranes with controllable thickness is important to explore the thickness-dependent electrochemical behaviors; this can further guide the fabrication of energy devices. Here we employ an in situ polymerization method to prepare a BSA-PDMAA-SiO2 cross-linked nanocomposite hydrogel on surfaces of eggshell membranes, which can be used as integrated separator and electrolyte in a supercapacitor after absorbing the electrolyte. The novel controlled thickness of the coated hydrogel therefore offers superior space utilization essential for all-solid-state devices. The composite gel can reach a high ionic conductivity of 8.8 mS cm(-1) and a resulting C-sp value of 161 F g(-1) at the current density of 1 A g(-1) when assembled in the supercapacitor, while the eggshell membrane based device has limited values of 2.7 mS cm(-1) and 88 F g(-1). A new insight into hybrid material preparation from low-cost natural life waste is presented in this work to obtain high performance gel electrolytes in energy devices.
2. Wu, Qing Wang, Zhaoqi Zhang, Haixia Zhu, Rongrong Wang, Shilong Wang, Qigang TI Fe3O4@nanogel via UOx/HRP initiated surface polymerization for pH sensitive drug delivery RSC ADVANCES VL 6 IS 58 BP 53170 EP 53174 DI 10.1039/c6ra06331d PD 2016 PY 2016 AB This communication describes a new strategy to fabricate a nanogel layer around magnetic nanoparticles by surface free-radical polymerization triggered by the cascade reaction of urate oxidase and horseradish peroxidase, which showed high loading capacity, pH-responsive drug release and low cytotoxicity.
3. Wei, Qingcong Xu, Mengchi Liao, Chuanan Wu, Qing Liu, Mingyu Zhang, Ye Wu, Chengtie Cheng, Liming Wang, Qigang Printable hybrid hydrogel by dual enzymatic polymerization with superactivity CHEMICAL SCIENCE VL 7 IS 4 BP 2748 EP 2752 DI 10.1039/c5sc02234g PD 2016 PY 2016 A new approach has been developed to fabricate tough hybrid hydrogels by employing dual enzyme-mediated redox initiation to achieve post-self-assembly cross-linking polymerization. The resulting hydrogel combines the merits of supramolecular hydrogels with polymeric hydrogels to achieve higher mechanical strength and porous networks. Designed 3D constructs were fabricated via in situ 3D printing. The in situ immobilized GOx/HRP in Gel II exhibited superactivity compared to free enzymes, which might be attributed to the synergistic effect of co-localized GOx and HRP minimizing the distances for mass transport between the gel and the bulk solution. This mechanically strong hybrid hydrogel maintained high reusability and thermal stability as well. In addition, in situ 3D cell culture was demonstrated, thus indicating that this biodegradable hybrid hydrogel is biocompatible with cells. The subsequent 3D cell printing further indicates that the hybrid hydrogel is a promising scaffold for bio-related applications such as biocatalysis and tissue engineering.
4. Liang, Meiying Liu, Xinhua Li, Wenjun Wang, Qigang A Tough Nanocomposite Aerogel of Manganese Oxide and Polyaniline as an Electrode for a Supercapacitor CHEMPLUSCHEM VL 81 IS 1 BP 40 EP 43 DI 10.1002/cplu.201500399 PD JAN 2016 PY 2016 A tough aerogel electrode of manganese oxide and polyaniline was prepared by insitu gelation, freeze-drying, and heat treatment on carbon cloth. The porous structure endows the final aerogel electrode with high electrochemical performance even at high current density and excellent cycling stability.
5. Wu, Dongbei Gao, Yawei Li, Wenjun Zheng, Xiangning Chen, YongGui Wang, Qigang Selective Adsorption of La3+ Using a Tough Alginate-ClayPoly(n-isopropylacrylamide) Hydrogel with Hierarchical Pores and Reversible Re-Deswelling/Swelling Cycles ACS SUSTAINABLE CHEMISTRY & ENGINEERING VL 4 IS 12 BP 6732 EP 6743 DI 10.1021/acssuschemeng.6601691 PD DEC 2016 PY 2016 Rare earth elements are an important strategic resource, and it is urgent that the rare earth industry continue to explore and develop novel separation methods and technologies. Herein, we fabricated an efficient semi-IPN alginate-clay-poly(n-isopropylacrylamide) (NIPAm) hydrogel by a frozen polymerization method with the help of UV light irradiation, where alginate was employed as the main adsorption functional compound. The as-prepared hydrogel exhibits tough, sponge-like hierarchical macroporous and reversible temperature-responsive characteristics. The maximum adsorption capacity of La is 182 mg/g for the hydrogel composition of S.0% NIPAm, 4.0% clay, and 3.0% alginate. The Langmuir isotherm fits the data very well, and the adsorption follows the pseudo-second-kinetic equation. The trace of La' ions can be effectively separated from the coexisting metal ions. After six repeated adsorption desorption cycles, no obvious deformation of the shape and or loss of adsorption capacity of the bulk hydrogel is found, but the stress level of the original hydrogel is significantly enhanced. Our results indicate that the green, sustainable, adsorbent hydrogel may serve as a versatile platform for recovery, separation, and purification of rare earth ions and suggest its potential applications in the fields of hydrometallurgy industries and wastewater treatment.
6. Wu, Dongbei Yi, Meirong Duan, Huiying Xu, Jingyan Wang, Qigang Tough TiO2-rGO-PDMAA nanocomposite hydrogel via one-pot UV polymerization and reduction for photodegradation of methylene blue CARBON VL 108 BP 394 EP 403 DI 10.1016/j.carbon.2016.07.025 PD NOV 2016 PY 2016 We present a facile one-pot approach to fabricate tough TiO2-rGO-PDMAA nanocomposite hydrogel. Both synchronous polymerization of N,N-dimethylacrylamide (DMAA) monomer and reduction of graphene oxide (GO) sheets into porous hydrogel network are triggered by TiO2 nanoparticles under the UV irradiation. The reduction of GO is accompanied color changes of the hydrogel from light-brown to black. The interpenetrating double hydrogel network between PDMAA chains and rGO can be fabricated at a considerable GO content, at which the hydrogel exhibits tough mechanical strength, good swelling ratio and quick self-recovery character. Benefiting from the excellent carrier mobility and large surface area of the rGO, our hydrogel has an improved photo degradation performance for methylene blue, suggesting its potential application in the wastewater treatment. (C) 2016 Elsevier Ltd. All rights reserved.
7. Cheng, He-li Feng, Qing-hua Liao, Chuan-an Liu, Yu Wu, Dong-bei Wang, Qi-gang Removal of methylene blue with hemicellulose/clay hybrid hydrogels CHINESE JOURNAL OF POLYMER SCIENCE VL 34 IS 6 BP 709 EP 719 DI 10.1007/s10118-016-1788-2 PD JUN 2016 PY 2016 In this study, we chose corn stover hemicellulose for the preparation of hydrogels with admirable adsorption properties under mild alkaline conditions. Clay nanosheets were introduced to this system and hemicellulose/clay hybrid hydrogels were prepared. Morphological, mechanical properties and the methylene blue adsorption behaviors of the prepared hydrogels were studied. Results suggested that the addition of clay not only improved the mechanical strength of hemicellulose-based hydrogels, but also increased the adsorption capacity on methylene blue. Moreover, the adsorptions were confirmed to follow pseudo-second order equation for both gels with and without clay. The maximum adsorption capacities on methylene blue for hemicellulose-based hydrogels with or without clay reached 148.8 and 95.6 mg/g, respectively. These results implied that hemicellulose-based hydrogels could be used as promising adsorbents for the removal of methylene blue from waste water.
8. He, Hongjian Liu, Mingyu Wei, Junjie Chen, Ping Wang, Shilong Wang, Qigang Hydrogel with Aligned and Tunable Pore Via Hot Ice Template Applies as Bioscaffold ADVANCED HEALTHCARE MATERIALS VL 5 IS 6 BP 648 EP 652 DI 10.1002/adhm.201500707 PD MAR 23 2016 PY 2016
9. Wei, Qingcong Xu, Wei Liu, Mingyu Wu, Qing Cheng, Liming Wang, Qigang Viscosity-controlled printing of supramolecular-polymeric hydrogels via dual-enzyme catalysis JOURNAL OF MATERIALS CHEMISTRY B VL 4 IS 38 BP 6302 EP 6306 DI 10.1039/c6tb01792d PD 2016 PY 2016 Hybrid hydrogels based on a guanidinium-containing oligopeptide are prepared via two dual-enzyme-triggered and simultaneous processes-self-assembly and polymerization. Furthermore, an extended time window is available for in situ viscosity-controlled 3D printing. In vivo hemostatic experiments elucidate that this guanidinium-containing hydrogel can accelerate the hemostasis process.
10. Qiao, Li Wang, Xia Gao, Yawei Wei, Qingcong Hu, Wen Wu, Lei Li, Pei Zhu, Rongrong Wang, Qigang Laccase-mediated formation of mesoporous silica nanoparticle based redox stimuli-responsive hybrid nanogels as a multifunctional nanotheranostic agent NANOSCALE VL 8 IS 39 BP 17241 EP 17249 DI 10.1039/c6nr05943k PD 2016 PY 2016 In this work, we designed a new hybrid nanogel with redox responsive polymer gel shells and mesoporous silica nanoparticles (MSNs) cores via laccase-mediated radical polymerization. The successful coating of the responsive gel shells on the MSNs was confirmed by the morphology and increased diameters of the particles as determined by transmission electron microscopy (TEM) and dynamic light scattering (DLS). As observed by scanning transmission electron microscopy (STEM) and energy dispersive X-ray spectroscopy (EDS), the presence of the element S around the MSNs further confirmed the formation of the gel shell. When loaded with doxorubicin (DOX), these hybrid nanogels had a significantly higher cumulative DOX release in a reductive environment than that found under physiological conditions. The MSNs with mesoporous channels were loaded with perfluorohexane (PFH) for ultrasound imaging, which was enhanced by the presence of the elastic gel shells.
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版权所有:2017年 同济大学王启刚教授课题组 |