Search results for: Xinhai Zhu

Items from 1 to 20 out of 27 results

article

Expression of AtNF‐YB1 activates early flowering, showing potential in breeding hybrid rice

Meifang Peng, Feng Gan, Chunmei Pan, Xiaomin Lin, more

Physiologia Plantarum > 176 > 5 > n/a - n/a

The nuclear factor Y (NF‐Y) has been shown to be involved in plant growth and development in response to various environmental signals. However, the integration of these mechanisms into breeding practices for new cultivars has not been extensively investigated. In this study, the Arabidopsis gene AtNF‐YB1 was introduced into rice, including inbred Kasalath and the hybrids Jinfeng × Chenghui 727 and...

article

Fabrication and characterization of chemical crosslinked cellulose fiber by dissolving cellulose in alkali urea aqueous solvent

Xinglin Liu, Xinhai Zhu, Junwu Peng, Dengpeng Song, more

Journal of Applied Polymer Science > 140 > 8 > n/a - n/a

Sustainable materials fabricated from natural polymers have attracted much attentions because of their multiple advantages like abundant renewable resource, biocompatibility, biodegradability, and nontoxicity, while their actually application often restricted by mechanical properties. Chemical crosslinking method was usually used to improve the mechanical properties of cellulose materials such as...

article

EZH2 enhances expression of CCL5 to promote recruitment of macrophages and invasion in lung cancer

Lilong Xia, Xinhai Zhu, Lei Zhang, Yanhui Xu, more

Biotechnology and Applied Biochemistry > 67 > 6 > 1011 - 1019

EZH2 (enhancer of zeste homolog 2) regulates epigenetic gene silencing and functions as critical regulators in various tumor progression. Macrophages infiltration promotes cancer development via stimulating tumor cell migration and invasion. However, the effect of EZH2 on macrophages infiltration, cell invasion, and migration of lung cancer remains to be investigated. In this study, we found that...

article

Exploring the Biocatalytic Scope of a Novel Enantioselective Halohydrin Dehalogenase from an Alphaproteobacterium

Feng Xue, Xiangju Ya, Yuansong Xiu, Qi Tong, more

Catalysis Letters > 2019 > 149 > 2 > 629-637

A gene encoding halohydrin dehalogenase from an alphaproteobacterium (AbHHDH) was identified, cloned and over-expressed in Escherichia coli. AbHHDH was able to catalyze the stereoselective dehalogenation of prochiral and racemic halohydrins. It showed the highest enantioselectivity in the dehalogenation of 20 mM (R,S)-2-bromo-1-phenylethanol, which yielded (S)-2-bromo-1-phenylethanol with 99% ee and...

article

Ginsenoside Rg3 promotes cytotoxicity of Paclitaxel through inhibiting NF-κB signaling and regulating Bax/Bcl-2 expression on triple-negative breast cancer

Zuguo Yuan, Hao Jiang, Xinhai Zhu, Xinge Liu, more

Biomedicine & Pharmacotherapy > 2017 > 89 > C > 227-232

Taxane-based chemotherapy regimen is the most effective therapeutic strategy for triple-negative breast cancer (TNBC) which is an aggressive subtype of breast cancer with high rate of recurrence and distant metastasis. Ginsenoside Rg3 is isolated from Panax ginseng with anti-cancer activity against carcinomas. We aim to evaluate the chemosensitizing effects of Ginsenoside Rg3 on TNBC cells and xenograft...

article

SeO₂‐Mediated One‐Pot Synthesis of 3‐Cyanofurans from 3‐Oxo‐3‐arylpropanenitriles and Substituted Acetaldehydes

Jie Zhou, Xinhai Zhu, Manna Huang, Yiqian Wan

European Journal of Organic Chemistry > 2017 > 16 > 2317 - 2321

An SeO₂‐mediated one‐pot method was established for the synthesis of 3‐cyanofurans from 3‐oxo‐3‐arylpropanenitriles and substituted acetaldehydes. The generality of the reaction was explored, and a plausible mechanism is proposed.

article

Enhanced mechanical behavior and fabrication of silicon carbide particles covered by in-situ carbon nanotube reinforced 6061 aluminum matrix composites

Shisheng Li, Yishi Su, Xinhai Zhu, Huiling Jin, more

Materials & Design > 2016 > 107 > C > 130-138

Due to its outstanding performance, carbon nanotube (CNT) has shown great potentials as an enhancement material for composites. However, CNT tends to cluster together or form aggregates during fabrication process, it is a challenging task to effectively mix CNT into a metal matrix. In this study, a novel approach is proposed to disperse CNT into aluminum matrix by using silicon carbide particles (SiCp)...

article

Copper‐Catalyzed Domino Reactions for the Synthesis of Phenothiazines

Manna Huang, Dongting Huang, Xinhai Zhu, Yiqian Wan

European Journal of Organic Chemistry > 2015 > 22 > 4835 - 4839

A method for the one‐pot synthesis of phenothiazines from benzothiazoles and aryl ortho‐dihalides was explored. Preliminary work on the mechanism of the reaction suggested that it follows a domino process, including the hydrolysis of benzothiazoles followed by C–S coupling and C–N coupling. The low loading of the catalyst system (5 mol‐% for both copper and ligand), the mild experimental conditions...

article

Functionalised Chitosan as a Green, Recyclable, Supported Catalyst for the Copper-Catalysed Ullmann C-N Coupling Reaction in Water

Bo Yang, Zuxing Mao, Xinhai Zhu, Yiqian Wan

Catalysis Communications > 2015 > 60 > Complete > 92-95

Functionalised chitosan was synthesised and combined with CuO to yield a recyclable, environment-friendly heterogeneous catalytic system for the Ullmann C-N coupling reaction in water. Various aromatic amines can be readily prepared from both electron-withdrawing and electron-donating aryl halides with anilines, benzylamine, aliphatic amines and imidazole with good to excellent yields, even for the...

article

Efficient synthesis of indoles from 2-alkynylaniline derivatives in water using a recyclable copper catalyst system

Senchuan Song, Manna Huang, Wenjun Li, Xinhai Zhu, more

Tetrahedron > 2015 > 71 > 3 > 451-456

A recyclable, effective CuI/PSP (polystyrene-supported pyrrole-2-carbohydrazide) catalyst system was established, with which a variety of N-(2-ethynylphenyl)-sulfonamides, even those with bulky substituents on the aromatic ring, have been smoothly cyclized to indoles in water with excellent yields.

article

Describing the non-saturating cyclic hardening behavior with a newly developed kinematic hardening model and its application in springback prediction of DP sheet metals

Jun Chen, Yuzhong Xiao, Wei Ding, Xinhai Zhu

Journal of Materials Processing Tech. > 2015 > 215 > Complete > 151-158

A recently proposed non-saturating kinematic (NSK) Swift model is verified by modeling the advanced high-strength sheet metal DP600, of which the cyclic loading is typically featured by the non-saturating hardening and permanent offset phenomenon along with other classical characteristics. Good performances are also presented to describe the further cyclic hardening behavior in different strain ranges...

article

Copper-Catalysed One-Pot Synthesis of 2,3,4,9-Tetrahydro-1H-Xanthen-1-Ones from 2-Halobenzylbromides and Cyclic-1,3-Diketones in Water

Zuxing Mao, Xinhai Zhu, Yiqian Wan

Catalysis Letters > 2015 > 145 > 8 > 1612-1620

A simple, environmentally friendly, tandem C-benzylation and intramolecular O-arylation for the sequential one-pot synthesis of functionalised 4H-chromenes is reported. The reactions between 2-halobenzylbromides and cyclic-1,3-diketones were catalysed by CuO/oxalohydrazide/hexane-2,5-dione in water to produce 2,3,4,9-tetrahydro-1H-xanthen-1-ones in moderate to high yields. Graphical Abstract A simple,...

article

Forming limit model evaluation for anisotropic sheet metals under through-thickness normal stress

Feifei Zhang, Jieshi Chen, Jun Chen, Xinhai Zhu

International Journal of Mechanical Sciences > 2014 > 89 > Complete > 40-46

The M–K method has been used with Barlat׳s 1989 anisotropic yield surface to predicate forming limit to study the effect of the normal stress and material anisotropy. The 3D stress state is converted to plane-stress state according to the hypothesis that hydrostatic stress has no effect on plastic deformation. The predicted forming limits correlate well with experimental data for AA5XXX under plane-stress...

article

A simple and recyclable copper/DTPA catalyst system for amination of aryl halides with aqueous ammonia in water

Bo Yang, Lihao Liao, Yongheng Zeng, Xinhai Zhu, more

Catalysis Communications > 2014 > 45 > Complete > 100-103

Commercially available CuO/DTPA (diethylenetriaminepentaacetic acid) was established to be a low-cost, recyclable, and environmentally benign homogeneous catalyst system for direct amination of aryl halides with ammonia. Primary aryl amines can be readily prepared from both electron-withdrawing and electron-donating aryl halides in good yields in water without the addition of surfactants.

article

Effect of nonlinear strain paths on forming limits under isotropic and anisotropic hardening

Ji He, Danielle Zeng, Xinhai Zhu, Z. Cedric Xia, more

International Journal of Solids and Structures > 2014 > 51 > 2 > 402-415

The path-dependence of the conventional Forming Limit Diagram (FLD) is an important issue for its applications in industry. Great efforts have been made to understand the nature of the path-dependence with both experimental and theoretical approaches, many of them attempting to find a path-independent way for the application of forming limits. In this paper, we focus on the nonlinear strain path effect...

article

A recyclable Cu-catalyzed C–N coupling reaction in water and its application to synthesis of imidazo[1,2-a]quinoxaline

Liye Huang, Ruina Yu, Xinhai Zhu, Yiqian Wan

Tetrahedron > 2013 > 69 > 42 > 8974-8977

Polystyrene-supported pyrrole-2-carbohydrazide (PSP) was synthesized and combined with CuI to make up a recyclable heterogeneous catalytic system for Ullmann-type C–N coupling reaction in water. In which, a variety of functionalized aryl halides animated efficiently with anilines, benzylamine, aliphatic amines, and imidazole. its preliminary application resulted in a more practical synthesis of imidazo[1,2-a]quinoxaline.

article

Sheet metal forming limits under stretch-bending with anisotropic hardening

Ji He, Z. Cedric Xia, Xinhai Zhu, Danielle Zeng, more

International Journal of Mechanical Sciences > 2013 > 75 > Complete > 244-256

One of the important failure criteria of press operations in industry for forming simulations is the Forming Limit Diagram (FLD). The complex loading effects on FLD, in particular the localized necking phenomenon under stretch-bending condition, have not been fully investigated and well understood. In practical sheet metal applications, the deformation is invariably three dimensional with a combination...

article

Polyethylene glycol (PEG-200)-promoted sustainable one-pot three-component synthesis of 3-indole derivatives in water

Leilei Wang, Manna Huang, Xinhai Zhu, Yiqian Wan

Applied Catalysis A, General > 2013 > 454 > Complete > 160-163

A sustainable three-component reaction of indoles, aldehydes, and malononitrile in water promoted by polyethylene glycol (PEG-200) afforded 3-indole derivatives in good to excellent yields.

article

Effect of strain rate sensitivity on FLDs—An instability approach

Ming-Yao Li, Xinhai Zhu, E. Chu

International Journal of Mechanical Sciences > 2012 > 64 > 1 > 273-279

Linear instability method has been adopted in this analysis to predict the Forming Limit Diagrams (FLDs), and the traditional instability analysis has been modified to account for strain rate effect. The initiation and growth of instability have been considered by examining the role of material work-hardening and strain rate sensitivity in affecting the limit strains. It is found that the initiation...

article

Amination of Aryl Halides by Using an Environmentally Benign, Recyclable Copper Catalyst

Manna Huang, Leilei Wang, Xinhai Zhu, Zuxing Mao, more

European Journal of Organic Chemistry > 2012 > 26 > 4897 - 4901

The combination of CuSO₄ with naturally occurring sucrose in a biodegradable aqueous solution of PEG‐200 has been confirmed as a novel, recyclable, and environmentally benign homogeneous catalyst system for the direct amination of aryl halides with NH₃·H₂O. Electron‐rich, electron‐poor, and even ortho‐substituted aryl bromides and iodides could be aminated to provide the desired primary arylamines...

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INFONA - science communication portal

Search results for: Xinhai Zhu

Expression of AtNF‐YB1 activates early flowering, showing potential in breeding hybrid rice

Fabrication and characterization of chemical crosslinked cellulose fiber by dissolving cellulose in alkali urea aqueous solvent

EZH2 enhances expression of CCL5 to promote recruitment of macrophages and invasion in lung cancer

Exploring the Biocatalytic Scope of a Novel Enantioselective Halohydrin Dehalogenase from an Alphaproteobacterium

Ginsenoside Rg3 promotes cytotoxicity of Paclitaxel through inhibiting NF-κB signaling and regulating Bax/Bcl-2 expression on triple-negative breast cancer

SeO₂‐Mediated One‐Pot Synthesis of 3‐Cyanofurans from 3‐Oxo‐3‐arylpropanenitriles and Substituted Acetaldehydes

Enhanced mechanical behavior and fabrication of silicon carbide particles covered by in-situ carbon nanotube reinforced 6061 aluminum matrix composites

Copper‐Catalyzed Domino Reactions for the Synthesis of Phenothiazines

Functionalised Chitosan as a Green, Recyclable, Supported Catalyst for the Copper-Catalysed Ullmann C-N Coupling Reaction in Water

Efficient synthesis of indoles from 2-alkynylaniline derivatives in water using a recyclable copper catalyst system

Describing the non-saturating cyclic hardening behavior with a newly developed kinematic hardening model and its application in springback prediction of DP sheet metals

Copper-Catalysed One-Pot Synthesis of 2,3,4,9-Tetrahydro-1H-Xanthen-1-Ones from 2-Halobenzylbromides and Cyclic-1,3-Diketones in Water

Forming limit model evaluation for anisotropic sheet metals under through-thickness normal stress

A simple and recyclable copper/DTPA catalyst system for amination of aryl halides with aqueous ammonia in water

Effect of nonlinear strain paths on forming limits under isotropic and anisotropic hardening

A recyclable Cu-catalyzed C–N coupling reaction in water and its application to synthesis of imidazo[1,2-a]quinoxaline

Sheet metal forming limits under stretch-bending with anisotropic hardening

Polyethylene glycol (PEG-200)-promoted sustainable one-pot three-component synthesis of 3-indole derivatives in water

Effect of strain rate sensitivity on FLDs—An instability approach

Amination of Aryl Halides by Using an Environmentally Benign, Recyclable Copper Catalyst

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