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Dietary supplementation of zinc oxide modulates intestinal functionality during the post-weaning period in clinically healthy piglets

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Journal of Animal Science and Biotechnology 2024年第1期15卷 313-328页

作者： Dirkjan Schokker Soumya K.Kar Els Willems Alex Bossers Ruud A.Dekker Alfons J.M.Jansman Wageningen Bioveterinary Research LelystadThe Netherlands Wageningen Livestock Research Wageningen University&ResearchWageningenThe Netherlands Royal Agrifirm Group ApeldoornThe Netherlands Institute for Risk Assessment Sciences Utrecht UniversityUtrechtThe Netherlands

Background To improve our understanding of host and intestinal microbiome interaction,this research investigated the effects of a high-level zinc oxide in the diet as model intervention on the intestinal microbiome and small intestinal functionality in clinically healthy post-weaning *** study 1,piglets received either a high concentration of zinc(Zn)as zinc oxide(Zn O,Zn,2,690 mg/kg)or a low Zn concentration(100 mg/kg)in the diet during the post weaning period(d 14–23).The effects on the piglet's small intestinal microbiome and functionality of intestinal tissue were *** study 2,the impact of timing of the dietary zinc intervention was investigated,i.e.,between d 0–14 and/or d 14–23 post weaning,and the consecutive effects on the piglet's intestinal functionality,here referring to microbiota composition and diversity and gene expression *** Differences in the small intestinal functionality were observed during the post weaning period between piglets receiving a diet with a low or high concentration Zn O content.A shift in the microbiota composition in the small intestine was observed that could be characterized as a non-pathological change,where mainly the commensals *** the immediate post weaning period,i.e.,d 0–14,the highest number of differentially expressed genes(DEGs)in intestinal tissue were observed between animals receiving a diet with a low or high concentration Zn O content,i.e.,23 DEGs in jejunal tissue and 11 DEGs in ileal *** genes are involved in biological processes related to immunity and inflammatory *** example,genes CD59 and REG3G were downregulated in the animals receiving a diet with a high concentration Zn O content compared to low Zn O content in both jejunum and ileum *** the second study,a similar result was obtained regarding the expression of genes in intestinal tissue related to immune pathways when comparing piglets receiving a diet with a high concentration Zn O con

关键词： Immune system Intestinal functionality Microbiota Piglets zinc oxide

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Synergism of zinc oxide/Organoclay-Loaded Poly(lactic acid) Hybrid Nanocomposite Plasticized by Triacetin for Sustainable Active Food Packaging

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Journal of Renewable Materials 2024年第5期12卷 951-967页

作者： Ponusa Songtipya Thummanoon Prodpran Ladawan Songtipya Theerarat Sengsuk Center of Excellence in Bio-Based Materials and Packaging Innovation Faculty of Agro-IndustryPrince of Songkla UniversityHat YaiSongkhla90110Thailand Food Packaging Technology Program Faculty of Agro-IndustryPrince of Songkla UniversityHat YaiSongkhla90110Thailand

The synergistic effect of organoclay(OC)and zinc oxide(ZnO)nanoparticles on the crucial properties of poly(lactic acid)(PLA)nanocompositeﬁlms was systematically investigated *** their incorporation into PLA via the solvent casting technique,the water vapor barrier property of the PLA/OC/ZnOﬁlm improved by a maximum of 86%compared to the neat PLAﬁlm without the deterioration of Young’s modulus or the tensile ***,theﬁlm’s self-antibacterial activity against foodborne pathogens,including gram-negative(Escherichia coli,***)and gram-positive(Staphylococcus aureus,***)bacteria,was enhanced by a max-imum of approximately 98–99%compared to the neat PLAﬁ***,SEM images revealed the homo-geneous dispersion of both nano-ﬁllers in the PLA ***,the thermal stability of theﬁlm decreased slightly after the addition of the OC and ***ﬁlm exhibited notable light barrier properties in the UV-Vis ***,the incorporation of a suitable biodegradable plasticizer signiﬁcantly decreased the Tg and notably enhanced theﬂexibility of the nanocompositeﬁlm by increasing the elongation at break approxi-mately 1.5-fold compared to that of the neat PLAﬁ*** contributes to its feasibility as an active food packa-ging material.

关键词： Poly(lactic acid)nanocomposite organoclay zinc oxide barrier property antibacterial activity active food packaging

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zinc oxide nanostructures and porous films produced by oxidation of zinc precursors in wet-oxygen atmosphere

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Progress in Natural Science:Materials International 2011年第2期21卷 81-96页

作者： Rui-qun CHEN~1,Chong-wen ZOU~(1,2),Xiao-dong YAN~1,Wei GAO~1 1.Department of Chemical and Materials Engineering,University of Auckland, 20 Symonds Street,Private Bag 92019,Auckland 1142,New Zealand 2.National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230026,China Department of Chemical and Materials Engineering University of Auckland 20 Symonds Street Private Bag 92019 Auckland 1142 New Zealand National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 China

Wet oxidation can be used to produce high quality zinc oxide（ZnO） nanostructures at moderately high temperatures with low requirements of equipment and experimental *** precursor films were prepared by magnetron sputtering and controlled ZnO nanostructures were produced by oxidation of the Zn precursor films in wet *** growth mechanism of the ZnO nanowires and nanobelts in wet oxidation was discussed based on the experimental *** and nitrogen doping were realized in the wet oxidation process,with different *** structural and optical properties of the ZnO nanostructures were characterized by means of scanning electron microscopy（SEM）,X-ray diffraction（XRD）,transmission electron microscopy（TEM）, and photoluminescence（PL） measurements to understand the growth process of ZnO in wet *** production of ZnO porous films by wet oxidation process is also presented.

关键词： zinc oxide nanostructures wet oxidation

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zinc oxide Nano Particles Integrated Kenaf/Unsaturated Polyester BioComposite

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Journal of Renewable Materials 2019年第10期7卷 967-982页

作者： Mohammed Mohammed Bashir O.Betar Rozyanty Rahman Aeshah M.Mohammed Azlin F.Osman Muhammed Jaafar Tijjani Adam Omar S.Dahham Uda Hashim Nik Z.Noriman Center of Excellence Geopolymer and Green Technology School of Materials EngineeringUniversiti Malaysia PerlisKangarPerlisMalaysia Research Center(NANOCAT) University of MalayaKuala LumpurMalaysia College of Health Solutions.Health North Building Arizona State UniversityArizonaUSA College of Education for Pure Science Ibn-Alhaitham University of BagdadBagdadIraq Faculty of Engineering Technology Universiti Malaysia PerlisKampus Uniciti Alam Sg.ChuchuhPadang Besar(U)PerlisMalaysia Institute of Nano Electronic Engineering Universiti Malaysia PerlisKangarPerlisMalaysia.

Increasing need for materials with special features have brought various new inventions,one of the most promising hope for new material with special features and functionalities is composites ***,this study report an integration of zinc nanoparticles into kenaf/polyester polymer composite to introduce new behavior to the *** composite behaviors were compared for mechanical,thermal,moisture absorption and biodegradability *** zinc oxide nanoparticles entrenched in the kenaf/polyestaer composites net structure through chemical bonds between kenaf/ZnO/polyester resin,existence of ZnO significantly influence the mechanical and thermals properties of *** analysis based on(TGA)response revealed the integration of ZnO nanoparticles improved the thermal stability when thermal decomposition temperature beyond 3650 *** thermal cracking decreased with present of ZnO and increase with kenaf content(layers).The modulus,Tensile strength,break at elongation,flexural modulus,flexural strength and impact strength of the composites with higher content kenaf/ZnO nanoparticle are 560 MPa,58MPa,1.8%,1300 PMa,68 MPa and 31 MPa,***,addition of kenaf layers and ZnO results in larger mechanical properties enhancement,the results of the contact angle show improvement in wetting of the fibres with addition of ZnO nanoparticles.

关键词： Polymer composite thermal properties mechanical properties nano-composite biodegradable polymer nano zinc oxide

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Mechano-chemical sulfidization of zinc oxide by grinding with sulfur and reductive additives

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Transactions of Nonferrous Metals Society of China 2013年第4期23卷 1129-1138页

作者：柴立元梁彦杰柯勇闵小波唐崇俭张海静谢先德袁翠玉中南大学冶金科学与工程学院环境工程研究所长沙410083 国家重金属污染防治工程技术研究中心长沙410083

A novel process for sulfidation of ZnO by co-grinding with sulfur and reductive additives （P, Fe, A1, and Mg） was developed. The sulfidation extent of ZnO with the addition of P, Fe, A1 or Mg can reach 85.2%, 81.6%, 96.7% and 92.6% after grinding for 4, 6, 1 and 1 h, respectively. Based on the chemical phase composition analysis and morphological characteristics of sulfidized products by XRD, SEM and TEM, a possible reaction mechanism, mechanically induced self-propagating reaction （MSR）, was proposed to explain the sulfidization reaction. In addition, the floatability of sulfidized products was investigated for the recovery of metal sulfide and ZnS can be concentrated with a high concentration ratio and concentrate grade. By using the sulfidizing process, it is expected that the recovery of zinc from the wastes or purification of heavy-metal-containing hazardous residues is technically feasible.

关键词： mechano-chemical sulfidization zinc oxide reductive additives self-propagating reaction flotation

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Synthesis,Growth Mechanism,and Applications of zinc oxide Nanomaterials

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Journal of Materials Science & Technology 2008年第4期24卷 457-472页

作者： Shulin JI Changhui YE Anhui Key Laboratory of Nanomaterials and Technology and Key Laboratory of Materials Physics Institute of SolidState Physics Chinese Academy of Sciences Hefei 230031 China

This article reviews recent progresses in growth mechanism, synthesis, and applications of zinc oxide nano-materials （mainly focusing on one-dimensional （1D） nanomaterials）. In the first part of this article, we briefly introduce the importance, the synthesis methods and growth mechanisms, the properties and applications of ZnO 1D nanomaterials. In the second part of this article, the growth mechanisms of ZnO 1D nanomaterials will be discussed in detail in the framework of vapor-liquid-solid （VLS）, vapor-solid （VS）, and aqueous solution growth （ASG） approaches. Both qualitative and quantitative information will be provided to show how a controlled synthesis of ZnO 1D nanomaterials can be achieved. In the third part of this article, we present recent progresses in our group for the synthesis of ZnO 1D nanomaterials, and the results from other groups will only be mentioned briefly. Especially, experiment designing according to theories will be elaborated to demonstrate the concept of controlled synthesis. In the fourth part of this article, the properties and potential applications of ZnO 1D nanomaterials will be treated. Finally, a summary part will be presented in the fifth section. The future trend of research for ZnO 1D nanomaterials will be pointed out and key issues to be solved will be proposed.

关键词： zinc oxide One-dimensional Nanomaterials Controlled synthesis

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Synthesis of Flower-like zinc Oxalate Microspheres in Ether-water Bilayer Refluxing Systems and Their Conversion to zinc oxide Microspheres

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Journal of Materials Science & Technology 2011年第6期27卷 563-569页

作者： Liang Ni Lei Wang Bing Shao Yinjue Wang Wenli Zhang Yong Jiang School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China

Flower-like zinc oxalate with a mean diameter of 50 μm was synthesized via the reaction of zinc acetate and dimethyl oxalate in ether-water bilayer refluxing systems at low ***-like zinc oxalate microspheres can be further transformed into the similar morphology to zinc oxide by the decomposition of zinc oxalate at 500℃.Scanning electron microscopy（SEM）,X-ray diffraction（XRD）,thermogravimetric analysisdifferential scanning calorimetric（TG-DSC）,energy dispersive X-ray spectrum（EDX） and Fourier transforminfrared spectroscopy（FT-IR） were used to characterize the structure features and chemical compositions of the as-synthesized *** UV-Vis and photoluminescence spectrum of flower-like zinc oxide microspheres were *** experimental results showed that flower-like zinc oxalate microspheres may be self-assembled by the zinc oxalate *** ether-water volume ratio of 4：1 and refluxing temperature of 40℃ were considered to favor the preparation of flower-like zinc oxalate microspheres.

关键词： Bilayer refluxing system zinc oxalate zinc oxide Flower-like microspheres

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Effect of magnesium on the aluminothermic reduction rate of zinc oxide obtained from spent alkaline battery anodes for the preparation of Al–Zn–Mg alloys

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International Journal of Minerals,Metallurgy and Materials 2016年第4期23卷 458-465页

作者： Rocio Ochoa Alfredo Flores Jesus Torres Cinvestav-Saltillo

The aluminothermic reduction of zinc oxide（ZnO） from alkaline battery anodes using molten Al may be a good option for the elaboration of secondary 7000-series alloys. This process is affected by the initial content of Mg within molten Al, which decreases the surface tension of the molten metal and conversely increases the wettability of ZnO particles. The effect of initial Mg concentration on the aluminothermic reduction rate of ZnO was analyzed at the following values： 0.90wt%, 1.20wt%, 4.00t%, 4.25wt%, and 4.40wt%. The ZnO particles were incorporated by mechanical agitation using a graphite paddle inside a bath of molten Al maintained at a constant temperature of 1123 K and at a constant agitation speed of 250 r/min, the treatment time was 240 min and the ZnO particle size was 450？500 mesh. The results show an increase in Zn concentration in the prepared alloys up to 5.43wt% for the highest initial concentration of Mg. The reaction products obtained were characterized by scanning electron microscopy and X-ray diffraction, and the efficiency of the reaction was measured on the basis of the different concentrations of Mg studied.

关键词： aluminothermic reduction alkaline batteries zinc oxide waste utilization aluminum zinc magnesium alloys

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Effect of modifying agents on the hydrophobicity and yield of zinc borate synthesized by zinc oxide

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International Journal of Minerals,Metallurgy and Materials 2013年第6期20卷 574-581页

作者： Nil Baran Acarali Melek Bardakci Nurcan Tugrul Emek Moroydor Derun Sabriye Piskin Department of Chemical Engineering Y ld z Technical University

The aim of this study was to synthesize zinc borate using zinc oxide, reference boric acid, and reference zinc borate （reference ZB） as the seed, and to investigate the effects of modifying agents and reaction parameters on the hydrophobicity and yield, respectively. The reaction parameters include reaction time （1-5 h）, reactant ratio （H3BO3/ZnO by mass： 2-5）, seed ratio （seed crystal/（H3BO3＋ZnO） by mass： 0-2wt%）, reaction temperature （50-120~C）, cooling temperature （10-80~C）, and stirring rate （400-700 r/min）; the modifying agents involve propylene glycol （PG, 0-6wt%）, kerosene （lwt%-6wt%）, and oleic acid （OA, lwt%-6wt%） with solvents （isopropyl alcohol （IPA）, ethanol, and methanol）. The results of reaction yield obtained from either magnetically or mechanically stirred systems were compared. zinc borate produced was characterized by X-ray diffraction （XRD）, Fourier transform infrared spectroscopy （FT-IR）, and contact angle tests to identify the hydrophobicity. In conclusion, zinc borate is synthesized successfully under the optimized reaction conditions, and the different modifying agents with various solvents affect the hydrophobicity of zinc borate.

关键词： zinc borate zinc oxide hydrophobicity yield

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Structural,Transport and Optical Properties of Boron-doped zinc oxide Nanocrystalline

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Journal of Materials Science & Technology 2011年第6期27卷 481-488页

作者： Vinod Kumar R.G.Singh L.P.Purohit R.M.Mehra Department of Physics Gurukula Kangri University Department of Electronic Science University of Delhi South Campus Maharaja Agrasen College University of Delhi 110 096 India School of Engineering & Technology Sharda University

The paper has reported the structural,transport and optical properties of boron doped zinc oxide（ZnO：B） thin films grown on glass substrate by sol-gel spin coating *** is observed from the analysis of the X-ray diffraction（XRD） results that the crystalline quality of the films is improved with increasing B concentration.A crystallite size of ～17 nm is obtained for B doped films.A minimum resistivity of 7.9×10-4 Ω.cm is obtained at 0.6 at.% of B concentration in the ZnO：B *** and intragrain cluster scattering are found to dominate the scattering mechanism in ZnO：B *** interference pattern in transmittance spectra shows good homogeneity with a transparency of ～88% in the visible *** band gap of the films is increased from 3.24 to 3.35 eV with increasing B *** gap widening is analyzed in terms of Burstein-Moss *** origin of the broad band photoluminescence（PL） spectra is explained in terms of the intragrain cluster scattering.

关键词： zinc oxide Boron Photoluminescence Intragrain B-M shift

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