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36 results on '"Wu, Huiqiong"'

10. Exploiting CMC@Fe3O4 nanoparticles as a multi-functional component for hydrogel fabrication.

Author

Wu, Huiqiong, Lei, Yulai, Wang, Jingxing, Tan, Yun, Song, Xianwen, Zheng, Jun, He, Ting, Zhou, Xuelong, Liu, Chuntai, Kjøniksen, Anna-Lena, and Zhang, Yi

Subjects
*CARBOXYMETHYLCELLULOSE, *IONIC conductivity, *NANOPARTICLES, *MAGNETIC fields
Abstract

Hydrogels have been widely applied in the fields of biology, medicine, soft materials and flexible/wearable devices owing to their superior biocompatibility and their versatile physicochemical properties. Although multiple chemical and physical methods have been proposed to functionalize hydrogels, endowing hydrogels with multi-properties/functionalities utilizing few components is still a challenge. This paper describes a simple and effective method to functionalize polymeric hydrogels with carboxymethyl cellulose (CMC) modified Fe3O4 nanoparticles (CMC@Fe3O4 NPs). The as-prepared metallogels exhibit good self-healing ability, ionic conductivity, photo-thermal transformability and magnetic field responsiveness. A triple functional sensor was built up to prove the universal viability of this metallogel toward functional devices. [ABSTRACT FROM AUTHOR]

Published
2022
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16. Confining ultrasmall bimetallic alloys in porous N–carbon for use as scalable and sustainable electrocatalysts for rechargeable Zn–air batteries

Author

Liu, Jingjing, primary, He, Ting, additional, Wang, Qichen, additional, Zhou, Zhaoxi, additional, Zhang, Yaqian, additional, Wu, Huiqiong, additional, Li, Qiang, additional, Zheng, Jun, additional, Sun, Zhifang, additional, Lei, Yongpeng, additional, Ma, Jianmin, additional, and Zhang, Yi, additional

Published
2019
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22. Synthesis and antimutagenic effects of selena-morpholine hydrate

Author

Wu Huiqiong, Xu Hansheng, Cai Lian-hua, Liu Xiufang, Ran Yong, and Wu Jun

Subjects
chemistry.chemical_compound, Multidisciplinary, Chemistry, Morpholine, Mutation (genetic algorithm), Mutagenesis, medicine, Mutagen, Hydrate, medicine.disease_cause, Molecular biology, Ames test
Abstract

The synthesis of selenamorpholine hydrate was described and its antimutagenic effects were investigated by the Ames tests. The results indicated that the mutation induced by the indirect mutagen 2-AF was inhibited obviously by selenamorpholine hydrate at the dosage of Se 0.16∼100 μg/dish for 35.8%∼53.7% (TA97) and the mutation induced by direct mutagen Dexon was inhibited for 6.2%∼30.0% (TA97) and 2.3% ∼34.1% (TA100). The mutagenesis of the indirect mutagen cyclophosphamide was suppressed for 5.4%∼ 16.1% by selenamorpholine hydrate at the dosage of Se 0.16∼100 μg/dish.

Published
2000

29. Supramolecular bimetallogels: a nanofiber network for bimetal/nitrogen co-doped carbon electrocatalysts.

Author

Tan, Minli, He, Ting, Liu, Jian, Wu, Huiqiong, Li, Qiang, Zheng, Jun, Wang, Yong, Sun, Zhifang, Wang, Shuangyin, and Zhang, Yi

Abstract

This paper reports a rational strategy using ‘supramolecular bimetallogel’ as a template to synthesize a series of bimetal (Fe–Co, Fe–Ni or Fe–Mn)/nitrogen co-doped carbon electrocatalysts for ORR with excellent performance. The bimetallogel nanofiber network serves as both bimetal and N sources as well as host matrix for the commercially available carbon. Thermal treatment of the bimetallogels enables homogenous in situ doping of the bimetal and N, affording bimetal/N co-doped carbon catalysts. [ABSTRACT FROM AUTHOR]

Published
2018
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30. Effect ofIn Vivo andIn Vitro treatment with arsenite on rat hepatic mitochondrial and microsomal enzymes

Author

Huangfu Yong-mu, Wu Huiqiong, Song Ruikun, and Cheng Jizhong

Subjects
chemistry.chemical_classification, biology, Succinate dehydrogenase, Glutathione peroxidase, Glutathione, Mitochondrion, Pyruvate dehydrogenase complex, Molecular biology, Lipid peroxidation, chemistry.chemical_compound, Biochemistry, chemistry, Management of Technology and Innovation, biology.protein, Inner mitochondrial membrane, Arsenite
Abstract

The effects of arsenite on activities of several enzymes including mitochondrial pyruvate dehydrogenase (PDH) and succinate dehydrogenase (SDH), microsomal cytochrome P450 and b5, NAD(P)H cytochrome C reductase and glutathione S-transferase were studied. The effects of arsenite on the mitochondrial membrane lipid peroxidation (LPO), the content of hepatic cytosol reduced glutathione and the activity of glutathione peroxidase was also investigated in rats. The results indicated that the activities of mitochondrial PDH and SDH were inhibited to 59 % and 57 % of the control activities respectively after arsenite was administered by intraperitoneal injection (i. p.) for 7 consecutive days at a dose of 20 mg/kg. Administration of arsenite led to a potential decrease of GSH content. The increase in lipid peroxidation of liver mitochondrial membrane prepared from rats treated with arsenite was also observed (P

Published
1996

31. In situ hybridization of CoOX nanoparticles on N-doped graphene through one step mineralization of co-responsive hydrogels.

Author

Ma, Jing, Wang, Xiaojuan, He, Ting, Tan, Minli, Zheng, Jun, Wu, Huiqiong, Yuan, Mengying, Shen, Rujuan, Zhang, Yi, and Xiang, Juan

Subjects
IN situ hybridization, NUCLEIC acid hybridization, GRAPHENE oxide, HYDROGELS, COLLOIDAL gels
Abstract

The in situ hydrothermal mineralization for a mixture of graphene oxide (GO) and Co-responsive supramolecular hydrogels led to a hybrid graphene aerogel, doped with Co and N elements. The as-prepared aerogels exhibited a competitive half-wave potential (0.840 V, versus RHE) and peak current density (2.35 mA cm−2) to that of Pt/C (0.836 V, 2.23 mA cm−2, respectively). Furthermore, they demonstrated a significantly perfect catalytic efficiency (nearly 100% of 4e− ORR) toward the oxygen reduction reaction (ORR). Insight into the structural details of the hybrid aerogels indicates that the CoOX active sites anchored on the graphene matrix play a central role in the upgrading of the catalytic performance of graphene aerogels. [ABSTRACT FROM AUTHOR]

Published
2017
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34. In Situ Fabrication of Defective CoNxSingle Clusters on Reduced Graphene Oxide Sheets with Excellent Electrocatalytic Activity for Oxygen Reduction

Author

He, Ting, Wang, Xiaojuan, Wu, Huiqiong, Xue, Hui, Xue, Peng, Ma, Jing, Tan, Minli, He, Shuanghua, Shen, Rujuan, Yi, Lunzhao, Zhang, Yi, and Xiang, Juan

Abstract

A facile one-step strategy for anchoring defective CoNxsingle clusters on partly reduced graphene oxide (RGO) is constructed to significantly improve the catalytic performance of non-noble metal complexes toward oxygen reduction reaction (ORR). Sequent loading with trace amounts of metal-free porphyrin and Co2+in RGO can dramatically enhance both the half-wave potential and the peak current density. Intriguingly, the RGO/P/2Co single cluster exhibits the best ORR catalytic performance with the half-wave potential of 0.834 V, extremely approaching that of commercial Pt/C (0.836 V). This half-wave potential surpasses most of the reported half-wave potentials of RGO supported non-noble metal ORR catalysts through low-temperature synthesis. Furthermore, the as-prepared RGO/P/2Co delivers a peak current density of 1.3 times higher than that of Pt/C at the same loading, together with a high mass activity of 2.76 A mgCo–1. During the durability test, a cathodic current loss less than 10% is recorded after 8000 continuous potential cycles. Insights into this successful example will be conducive to the development of elegant routes for constructing metal nitrogen (MN)-based ORR catalysts with high efficiency, outstanding stability, and excellent selectivity.

Published
2017
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35. In Situ Fabrication of Defective CoN x Single Clusters on Reduced Graphene Oxide Sheets with Excellent Electrocatalytic Activity for Oxygen Reduction.

Author

He T, Wang X, Wu H, Xue H, Xue P, Ma J, Tan M, He S, Shen R, Yi L, Zhang Y, and Xiang J

Abstract

A facile one-step strategy for anchoring defective CoN x single clusters on partly reduced graphene oxide (RGO) is constructed to significantly improve the catalytic performance of non-noble metal complexes toward oxygen reduction reaction (ORR). Sequent loading with trace amounts of metal-free porphyrin and Co 2+ in RGO can dramatically enhance both the half-wave potential and the peak current density. Intriguingly, the RGO/P/2Co single cluster exhibits the best ORR catalytic performance with the half-wave potential of 0.834 V, extremely approaching that of commercial Pt/C (0.836 V). This half-wave potential surpasses most of the reported half-wave potentials of RGO supported non-noble metal ORR catalysts through low-temperature synthesis. Furthermore, the as-prepared RGO/P/2Co delivers a peak current density of 1.3 times higher than that of Pt/C at the same loading, together with a high mass activity of 2.76 A mg Co -1 . During the durability test, a cathodic current loss less than 10% is recorded after 8000 continuous potential cycles. Insights into this successful example will be conducive to the development of elegant routes for constructing metal nitrogen (MN)-based ORR catalysts with high efficiency, outstanding stability, and excellent selectivity.

Published
2017
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36. In situ hybridization of CoO X nanoparticles on N-doped graphene through one step mineralization of co-responsive hydrogels.

Author

Ma J, Wang X, He T, Tan M, Zheng J, Wu H, Yuan M, Shen R, Zhang Y, and Xiang J

Abstract

The in situ hydrothermal mineralization for a mixture of graphene oxide (GO) and Co-responsive supramolecular hydrogels led to a hybrid graphene aerogel, doped with Co and N elements. The as-prepared aerogels exhibited a competitive half-wave potential (0.840 V, versus RHE) and peak current density (2.35 mA cm -2 ) to that of Pt/C (0.836 V, 2.23 mA cm -2 , respectively). Furthermore, they demonstrated a significantly perfect catalytic efficiency (nearly 100% of 4e - ORR) toward the oxygen reduction reaction (ORR). Insight into the structural details of the hybrid aerogels indicates that the CoO X active sites anchored on the graphene matrix play a central role in the upgrading of the catalytic performance of graphene aerogels.

Published
2017
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