Search results for: Weiwei Zhang

Items from 1 to 20 out of 647 results

article

Associations between social capital and trust in general practitioners among the elderly people: Empirical evidence from China

Weiwei Zhang, Yuankai Huang, Hongjie Zhou, Guohua Lin, more

Health & Social Care in the Community > 28 > 5 > 1590 - 1602

Elderly individuals’ trust in general practitioners (GPs) is conducive to enhancing their health outcomes and promote healthy ageing. However, this trust has been declining in recent decades. Social capital is associated with patients’ trust in healthcare providers in several countries, which make it a potential path for improving the trust of the elderly people in GPs in China, but it is not yet...

article

Mechanical and flame‐retardant properties and thermal decomposition of vinyl ester resin modified by different phenyl silsesquioxanes

Weiwei Zhang, Wenchao Zhang, Zhaolu Qin, Xin Zhang, more

Polymers for Advanced Technologies > 31 > 8 > 1836 - 1846

The mechanical properties and fire resistance of vinyl ester resin (VER) composites containing cage‐shaped octaphenyl silsesquioxane (OPS), incompletely cage‐shaped phenyl silsesquioxane (PhT₇POSS), and ladder‐shaped phenyl silsesquioxane (PPSQ) were investigated. The POSS structure and dispersion have a great influence on the mechanical properties, thermal stability, and decomposition process of...

article

Study on flame retardancy of APP/PEPA/MoO₃ synergism in vinyl ester resins

Gaofeng Zeng, Weiwei Zhang, Xin Zhang, Wenchao Zhang, more

Journal of Applied Polymer Science > 137 > 35 > n/a - n/a

A range of flame retardant vinyl ester resins (VERs) samples have been produced containing different contents of PEPA (1‐oxo‐4‐hydroxymethyl‐2,6,7‐trioxa‐l‐phosphabicyclo[2.2.2]octane), APP (ammonium polyphosphate), and MoO₃ (molybdenum trioxide). By investigating the flame retardancy of VER samples such as limiting oxygen index and UL‐94, the synergistic flame retardance of APP, PEPA, and MoO3 has...

article

Phenanthrene‐Fused‐Quinoxaline as a Key Building Block for Highly Efficient and Stable Sensitizers in Copper‐Electrolyte‐Based Dye‐Sensitized Solar Cells

Huiyun Jiang, Yameng Ren, Weiwei Zhang, Yongzhen Wu, more

Angewandte Chemie International Edition > 59 > 24 > 9324 - 9329

Dye‐sensitized solar cells (DSSCs) based on Cu^II/I bipyridyl or phenanthroline complexes as redox shuttles have achieved very high open‐circuit voltages (V_OC, more than 1 V). However, their short‐circuit photocurrent density (J_SC) has remained modest. Increasing the J_SC is expected to extend the spectral response of sensitizers to the red or NIR region while maintaining efficient electron injection...

article

Phenanthrene‐Fused‐Quinoxaline as a Key Building Block for Highly Efficient and Stable Sensitizers in Copper‐Electrolyte‐Based Dye‐Sensitized Solar Cells

Huiyun Jiang, Yameng Ren, Weiwei Zhang, Yongzhen Wu, more

Angewandte Chemie > 132 > 24 > 9410 - 9415

article

Synergistic inhibition effect of N‐(furan‐2‐ylmethyl)‐7H‐purin‐6‐amine and iodide ion for mild steel corrosion in 1 mol/L HCl

Weiwei Zhang, Hui‐Jing Li, Ankai Wang, Chengshuai Ma, more

Materials and Corrosion > 71 > 3 > 498 - 507

The synergistic inhibition effect of N‐(furan‐2‐ylmethyl)‐7H‐purin‐6‐amine (FYPA) and iodide ion on mild steel corrosion in 1 mol/L HCl was investigated using weight‐loss tests, electrochemical techniques, and surface analysis. The experiments revealed that the FYPA + KI mixture was a temperature‐dependent inhibitor, which strongly inhibited the corrosion of mild steel compared with FYPA. Based on...

article

Facile synthesis and electrochemical properties of a novel Ni-B/TiC composite coating via ultrasonic-assisted electrodeposition

Baosong Li, Weiwei Zhang

Ultrasonics Sonochemistry > 2020 > 61 > C

A novel Ni-B/TiC composite coating was synthesized by ultrasonic-assisted direct current electrodeposition. Ultrasonic technology was adopted to prevent the agglomeration of nanoparticle, improve the structure and corrosion resistance, using an ultrasonic bath at frequency 40 KHz and acoustic power 300 W. The influences of current density and deposition time on its structure and electrochemical behaviors...

article

Synergistic Coassembly of Highly Wettable and Uniform Hole‐Extraction Monolayers for Scaling‐up Perovskite Solar Cells

Erpeng Li, Enbing Bi, Yongzhen Wu, Weiwei Zhang, more

Advanced Functional Materials > 30 > 7 > n/a - n/a

All organic charge‐transporting layer (CTL)‐featured perovskite solar cells (PSCs) exhibit distinct advantages, but their scaling‐up remains a great challenge because the organic CTLs underneath the perovskite are too thin to achieve large‐area homogeneous layers by spin‐coating, and their hydrophobic nature further hinders the solution‐based fabrication of perovskite layer. Here, an unprecedented...

article

Characterization and expression of SLO1 potassium channels during spermatogenesis in Eriocheir sinensis

Weiwei Zhang, Han Zhang, Shumei Mu, Juhui Yan, more

Aquaculture Research > 51 > 3 > 890 - 905

SLO1 potassium channels are pivotal to many aspects of spermatogenic cell. Experiments were conducted to assess physiology and function of SLO1 potassium channels in different developmental stages of spermatogenic cell in Eriocheir sinensis. First, the expression of SLO1 protein was examined via Western blot, RT‐PCR, immunohistochemistry and immunofluorescence assays. The results showed that the expression...

article

Transition of cellulose supramolecular structure during concentrated acid treatment and its implication for cellulose nanocrystal yield

Lida Xing, Chuanshuang Hu, Weiwei Zhang, Litao Guan, more

Carbohydrate Polymers > 2020 > 229 > C

Cellulose nanocrystals with cellulose I and II allomorphs (CNC-I and CNC-II) were prepared from eucalyptus cellulose I substrate by controlling the sulfuric acid hydrolysis conditions, including acid concentration (56–64 wt%), reaction temperature (45 or 60 °C) and time (10–120 min). The crystalline structures were verified by XRD and ¹³ C-NMR. CNC-II only appeared at very restricted reaction conditions...

article

Design, synthesis, and antilung adenocarcinoma activity research of novel paeonol Schiff base derivatives containing a 1,2,3‐triazole moiety

Yuqin Jiang, Yanyan Li, Tingting Yang, Xin Shi, more

Journal of the Chinese Chemical Society > 67 > 1 > 165 - 171

A new series of paeonol Schiff base derivatives containing a 1,2,3‐triazole moiety were synthesized using the copper(I) catalyzed azide‐alkynecycloaddition (CuAAC) reaction and evaluated for their cytotoxicity in vitro against human cervical carcinoma HeLa cells, human lung cancer A549 cells, and human liver cancer HepG2 cells. Unfortunately, all the tested compounds showed poor activities toward...

article

The Effect of Different Smoke Suppressants with APP for Enhancing the Flame Retardancy and Smoke Suppression on Vinyl Ester Resin

Xin Zhang, Weiwei Zhang, Gaofeng Zeng, Jianxin Du, more

Polymer Engineering & Science > 60 > 2 > 314 - 322

Flame retarded and smoke suppressed vinyl ester resin (VER) were prepared through ammonium polyphosphate (APP) coupled with different smoke suppressants. The flame retardancy of these composites was tested by the limiting oxygen index and UL‐94 tests. The typical combustion parameters including heat release rate (HRR), peak of HRR (p‐HRR), total heat release, smoke production rate, and total smoke...

article

Flame retardant and mechanism of vinyl ester resin modified by octaphenyl polyhedral oligomeric silsesquioxane

Weiwei Zhang, Xin Zhang, Gaofeng Zeng, Kang Wang, more

Polymers for Advanced Technologies > 30 > 12 > 3061 - 3072

Flamability is one of the major issues for utilization of bisphenol A–type vinyl ester resin (VER) polymeric composites in practical applications. The thermal stability and mechanical property of VER composites containing octaphenyl polyhedral oligomeric silsesquioxane (OPS) were investigated and discussed in detail. With increasing the mass ratio of OPS, the residues yield at 800°C and bending strength...

article

Do clerkship schemes effectively improve pharmacy students’ understanding of and attitudes regarding pharmaceutical care?——a pre-post study in China Pharmaceutical University

Yuankai Huang, Dongning Yao, Weiwei Zhang, Yitao Wang, more

BMC Medical Education > 2019 > 19 > 1 > 1-9

Background Clerkship is potentially an effective measure of improving the pharmacy students’ understanding of and attitudes toward pharmaceutical care. This research aimed to validate whether clerkship schemes in China effectively improve pharmacy students’ understanding of and attitudes toward PC, and discuss on how to improve the clerkship schemes for better quality. Methods A pre-post and self-administrated...

article

Preimplantation genetic testing for a family with usher syndrome through targeted sequencing and haplotype analysis

Haining Luo, Chao Chen, Yun Yang, Yinfeng Zhang, more

BMC Medical Genomics > 2019 > 12 > 1 > 1-8

Background Preimplantation genetic testing for monogenic defects (PGT-M) has been available in clinical practice. This study aimed to validate the applicability of targeted capture sequencing in developing personalized PGT-M assay. Methods One couple at risk of transmitting Usher Syndrome to their offspring was recruited to this study. Customized capture probe targeted at USH2A gene and 350 kb flanking...

article

Accurate Control of Core–Shell Upconversion Nanoparticles through Anisotropic Strain Engineering

Jianxiong Zhao, Xian Chen, Bing Chen, Xue Luo, more

Advanced Functional Materials > 29 > 44 > n/a - n/a

The effect of anisotropic interfacial strain on epitaxial growth and optical emission of sodium rare‐earth fluoride core–shell nanoparticles is investigated. A variety of sodium rare‐earth fluoride shells are grown on hexagonal‐phase NaYF₄:Yb/Er core for providing anisotropic tuning of interfacial strains. Using high‐resolution transmission electron microscopy and X‐ray diffraction characterizations,...

article

K13-propeller gene polymorphisms of Plasmodium falciparum and the therapeutic effect of artesunate among migrant workers returning to Guangxi, China (2014–2017)

Jun Li, Yunliang Shi, Weiwei Zhang, Hui Yan, more

Malaria Journal > 2019 > 18 > 1 > 1-7

Background The resistance of Plasmodium falciparum to artemisinin has been identified in Asia and some parts of Africa. The drug resistance of P. falciparum will be an obstacle to the successful elimination of malaria by 2025. Whole-genome sequencing of the artemisinin-resistant parasite line revealed mutations on the k13 gene associated with drug resistance in P. falciparum. To understand the artemisinin...

article

Bio‐based Mg(OH)₂@M‐Phyt: improving the flame‐retardant and mechanical properties of flexible poly(vinyl chloride)

Weihua Meng, Weihong Wu, Weiwei Zhang, Luyao Cheng, more

Polymer International > 68 > 10 > 1759 - 1766

Two novelty bio‐based multifunctional metallic phytate coated (M‐Phyt, M ≡ Cu, Zn) Mg(OH)₂ (MH@M‐Phyt) were designed and incorporated into flexible poly(vinyl chloride) (PVC). MH@M‐Phyt was incorporated into PVC materials in a powder form. The morphology of the interface between MH and M‐Phyt and their binding states were characterized by TEM and X‐ray photoelectron spectroscopy (XPS), respectively...

article

Diversity of potentially exploitable pharmacological activities of the highly prized edible medicinal fungus Antrodia camphorata

Caicheng Wang, Weiwei Zhang, Jack Ho Wong, Tzibun Ng, more

Applied Microbiology and Biotechnology > 2019 > 103 > 19 > 7843-7867

Antrodia camphorata, also known as A. cinnamomea, is a precious medicinal basidiomycete fungus endemic to Taiwan. This article summarizes the recent advances in research on the multifarious pharmacological effects of A. camphorata. The mushroom exhibits anticancer activity toward a large variety of cancers including breast, cervical, ovarian, prostate, bladder, colorectal, pancreatic, liver, and lung...

article

Antioxidation and memory protection effects of solid‐state‐fermented rapeseed meal peptides on D‐galactose‐induced memory impairment in aging‐mice

Qingzhi Ding, Ricardo A. Wu, Litao Yin, Weiwei Zhang, more

Journal of Food Process Engineering > 42 > 5 > n/a - n/a

This study aims to explore the bioactivity of peptides from solid‐state‐fermented rapeseed meal. Three fragments (RP₁, RP₂, and RP₃) were separated by ultrafiltration after solid‐state fermentation; RP₁ (MW ≤3 kDa) showed the highest DPPH scavenging rate (EC₅₀ 0.27 mg/mL). Then the protective effect of RP₁ contra oxidative stress in aging‐mice induced by d‐galactose was investigated by Morris water...

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INFONA - science communication portal

Search results for: Weiwei Zhang

Associations between social capital and trust in general practitioners among the elderly people: Empirical evidence from China

Mechanical and flame‐retardant properties and thermal decomposition of vinyl ester resin modified by different phenyl silsesquioxanes

Study on flame retardancy of APP/PEPA/MoO₃ synergism in vinyl ester resins

Phenanthrene‐Fused‐Quinoxaline as a Key Building Block for Highly Efficient and Stable Sensitizers in Copper‐Electrolyte‐Based Dye‐Sensitized Solar Cells

Phenanthrene‐Fused‐Quinoxaline as a Key Building Block for Highly Efficient and Stable Sensitizers in Copper‐Electrolyte‐Based Dye‐Sensitized Solar Cells

Synergistic inhibition effect of N‐(furan‐2‐ylmethyl)‐7H‐purin‐6‐amine and iodide ion for mild steel corrosion in 1 mol/L HCl

Facile synthesis and electrochemical properties of a novel Ni-B/TiC composite coating via ultrasonic-assisted electrodeposition

Synergistic Coassembly of Highly Wettable and Uniform Hole‐Extraction Monolayers for Scaling‐up Perovskite Solar Cells

Characterization and expression of SLO1 potassium channels during spermatogenesis in Eriocheir sinensis

Transition of cellulose supramolecular structure during concentrated acid treatment and its implication for cellulose nanocrystal yield

Design, synthesis, and antilung adenocarcinoma activity research of novel paeonol Schiff base derivatives containing a 1,2,3‐triazole moiety

The Effect of Different Smoke Suppressants with APP for Enhancing the Flame Retardancy and Smoke Suppression on Vinyl Ester Resin

Flame retardant and mechanism of vinyl ester resin modified by octaphenyl polyhedral oligomeric silsesquioxane

Do clerkship schemes effectively improve pharmacy students’ understanding of and attitudes regarding pharmaceutical care?——a pre-post study in China Pharmaceutical University

Preimplantation genetic testing for a family with usher syndrome through targeted sequencing and haplotype analysis

Accurate Control of Core–Shell Upconversion Nanoparticles through Anisotropic Strain Engineering

K13-propeller gene polymorphisms of Plasmodium falciparum and the therapeutic effect of artesunate among migrant workers returning to Guangxi, China (2014–2017)

Bio‐based Mg(OH)₂@M‐Phyt: improving the flame‐retardant and mechanical properties of flexible poly(vinyl chloride)

Diversity of potentially exploitable pharmacological activities of the highly prized edible medicinal fungus Antrodia camphorata

Antioxidation and memory protection effects of solid‐state‐fermented rapeseed meal peptides on D‐galactose‐induced memory impairment in aging‐mice

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