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defence Technology（防务技术） 2024年第1期31卷 158-162页

作者： Xue Yang Qijun Liu Yundan Gan Lei Yang Zhengtang Liu Fusheng Liu Bond and Band Engineering group School of Physical Science and TechnologySouthwest Jiaotong UniversityChengdu 610031People's Republic of China Xi'an Modern Chemistry research Institute Xi'an 710065People's Republic of China State Key Laboratory of Solidification processing Northwestern Polytechnical UniversityXi'an 710072People's Republic of China

As an energetic material of great interest,the work capacity of dihydroxylammonium 5,5’-bistetrazole-1,1’-diolate(TKX-50)has been questioned *** some research groups have explored the reasons for the low working ability of TKX-50,the plane impact experiment on powdered TKX-50 is obviously closer to the practical application,and the conclusions based on this are more ***,we performed shock Hugoniot measurements of powdered TKX-50 between 5.65 and 16.29 *** plane impact experiments of powdered TKX-50 were carried out and the shocked raman spectra were *** raman spectroscopy analysis,a new peak of powdered TKX-50 was found between19.47 GPa and 24.96 GPa,which may be caused by decomposition/phase transition and was related with the low work capacity.

关键词： Powdered TKX-50 Hugoniot raman decomposition Phase transition

Effects of low molecular weight polysaccharide from Sargassum thunbergii against palmitic acid-induced intracellular lipid accumulation in 3T3-L1 adipocyte and HepG2 cells

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Food Science and Human Wellness 2024年第4期13卷 2244-2252页

作者： Hyo-Geun Lee d.P.Nagahawatta M.J.M.S.Kurera Kyung-Mo Song Yun-Sang Choi You-Jin Jeon Min-Cheol Kang department of Marine Life Sciences Jeju National UniversityJeju 63243Republic of Korea department of Biotechnology Faculty of Agriculture and Plantation ManagementWayamba University of Sri LankaMakanduraGonawila(NWP)60170Sri Lanka research group of Food processing Korea Food Research Institute245Wanju 55365Republic of Korea

Low molecular weight polysaccharides can be isolated from Sargassum thunbergii(LMPST)and in vitro experiments were conducted to evaluate the inhibitory effects on *** natures of LMPST were attained from *** and appraised their LMPST on palmitic acid(PA)induced lipid accretion in Hep G2,and 3T3-L1 *** treatment lessened lipid deposition and intracellular free fatty acid and triglyceride intensities in PA-treated above mentioned *** mechanistic study publicized that LMPST2 significantly suppressed adipogenesis and stimulated the PA-treated 3T3-L1 cells occupied in the lipolysis ***,in PA-treated Hep G2 cells,the free fatty acid oxidation was significantly increased by *** these constructive properties of LMPST2 from ***,is a potential candidate for diminishing the intracellular lipids,and for a therapeutic agent in those conditions.

关键词： Sargassum thunbergii Low molecular weight polysaccharide Lipid accumulation Obesity Liver steatosis

3d-shaped 3d-continuously graphene cellulose(3d^(2)GC)architecture

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Nano research 2024年第7期17卷 6695-6699页

作者： Abdelrahman Brakat Hongwei Zhu State Key Lab of New Ceramics and Fine processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

In the endeavor to develop three-dimensional(3d)-architected sophisticated hierarchical structures,the synergy between inplane and out-of-plane interactions at interfaces offers new *** interplay,governed by van der Waals(vdW)interfacial nanoarchitectonics,facilitates the design of efficient thermally conductive *** work delves into the kinetics underlying a dual-templating strategy,seamlessly integrating two-dimensional(2d)-graphene sheets with one-dimensional(1d)-cellulose chains at heterointerfaces,thereby transforming into 3d-shaped and 3d-continuously anisotropic structures,termed as(3d^(2)GC)***,we designed and fabricated an anisotropic graphene cellulose scaffold(GCS)employing a nickel *** as-grown GCS replicates the 3d-shaped and configuration of the *** 3d-continuously interconnected fibrous-porous network of the GCS,combined with its anisotropic thermal properties(λ_(axial)/λ_(radial)),not only is promising for advanced thermal technologies but also offers advantages in cost-effectiveness and eco-effectiveness.

关键词： two-dimensional(2d)-graphene one-dimensional(1d)-cellulose heterointerface anisotropic three-dimensional(3d)-architecture

Anti-obesity effects of fucoidan from Sargassum thunbergii in adipocytes and high fat diet induced obese mice through inhibiting adipogenic specific transcription factor

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Food Science and Human Wellness 2024年第3期13卷 1608-1616页

作者： Hyo-Geun Lee H.H.A.C.K.Jayawardhana Fengqi Yang d.P.Nagahawaththa N.M.Liyanage Kyung-Mo Song Yun-Sang Choi Seung-Hong Lee You-Jin Jeon Min-Cheol Kang department of Marine Life Sciences Jeju National UniversityJeju 63243Republic of Korea Marine Science Institute Jeju National UniversityJeju 63333Republic of Korea research group of Food processing Korea Food Research InstituteWanju 55365Republic of Korea department of Pharmoceutical Engineering Soonchunhyang UniversityAsan 31538Republic of Korea

The prevalence of obesity has increased and is a health concern *** to the concerns regarding synthetic anti-obesity treatments,nowadays natural products become a *** studies proved that there is a potential to use marine algae as anti-obesity ***,in this study,the lipid inhibitory effect of crude polysaccharide of amyloglucosidase-assisted hydrolysate from Sargassum thunbergii(STAC)and its fucoidan fractions(STAFs)on 3T3-L1 cells and high-fat diet(HFd)-induced obese mice were *** to the results,the STAF3,showed the highest xylose content and exhibited significant inhibitory effects on lipid accumulation by downregulating adipogenic and lipogenic proteins in 3T3-L1 ***,oral supplementation with STAC significantly declined gain in body weight and fat weight,and serum lipid contents in an HFd-induced obesity mouse *** and chemical characterizations demonstrated that puritied STAF3 has consistent surface morphology and small particle size,with similar structural characteristics as commercial ***,these results indicate that STAC and purified STAF3 from Sargassum thunbergia is a potent source to develop as ananti-obesity agents or functional food products to counter obesity.

关键词： Sargassum thunbergii Fucoidan Anti-obesity Anti-steatosis

Polymer-encapsulated metal complex catalysts:An emerging and efficient platform for electrochemical CO_(2) reduction

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Journal of Materials Science & Technology 2024年第5期172卷 33-50页

作者： Yingshuo Liu Shuaishuai Lyu Fuli Wen Weixuan Nie Shuqing Wang Sinopec research Institute of Petroleum processing Co. Ltd.Beijing 100083China School of Engineering Westlake UniversityHangzhou 310024China

Over the past decade,electrocatalytic reduction of CO_(2)has gained substantial ***,hardly any of the previous reviews have focused on the systematic discussion of polymer-molecular catalyst composites as an emerging system for the electrochemical transformation of CO_(2)to value-added *** this review,we first give a brief overview of the general features of solid-state and molecular catalysts,and then advance the discussion to polymer-catalyst composite systems,with particular emphasis on polymer-encapsulated molecular catalysts,where the coordination environment surrounding molecular catalysts can be modified via polymer encapsulation to promote the overall performance of CO_(2)*** elucidation of the possible reaction mechanisms of this emerging electrocat-alytic system along with proposed optimization strategies is also summarized and discussed based on recently published reports,followed by the challenges and prospects of their industrial applications at the end of this *** this review,we hope the audience can gain a comprehensive understanding of the electrocatalytic mechanism of the coordinating polymers and valuable insights into engineering the microenvironment surrounding the metal complexes for potential future research directions.

关键词： Polymer-molecular catalyst composite Polymer encapsulation Coordination environment CO_(2)electrocatalysis Electrocatalytic mechanism

Mycorrhizal fungi mitigate nitrogen losses of an experimental grassland by facilitating plant uptake and soil microbial immobilization

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Pedosphere 2024年第2期34卷 399-410页

作者： Yangyang JIA Marcel G.A.VAN dEr HEIJdEN Alain Y.VALZANO-HELd Markus JOCHEr Florian WALdEr Postdoctoral Mobile Station of Ecology College of Ecology and EnvironmentXinjiang UniversityÜrümqi 830046China research group Plant-Soil Interactions AgroscopeZürich 8046Switzerland research group Climate and Agriculture AgroscopeZürich 8046Switzerland department of Plant and Microbial Biology University of ZürichZürich 8008Switzerland research group Soil Quality and Soil Use AgroscopeZürich 8046Switzerland

Nitrogen(N)is one of the most limited nutrients of terrestrial ecosystems,whose losses are prevented in tightly coupled cycles in finely tuned *** change-induced N enrichment through atmospheric deposition and application of vast amounts of fertilizer are now challenging the terrestrial N *** mycorrhizal fungi(AMF)are known drivers of plant-soil nutrient fluxes,but a comprehensive assessment of AMF involvement in N cycling under global change is still ***,we simulated N enrichment by fertilization(low/high)in experimental grassland microcosms under greenhouse conditions in the presence or absence of AMF and continuously monitored different N pathways over nine *** found that high N enrichment by fertilization decreased the relative abundance of legumes and the plant species dominating the plant community changed from grasses to forbs in the presence of AMF,based on aboveground *** presence of AMF always maintained plant N:phosphorus(P)ratios between 14 and 16,no matter how the soil N availability *** in plant N:P ratios due to the increased plant N and P uptake might thus be a primary pathway of AMF altering plant community ***,we constructed a comprehensive picture of AMF’s role in N cycling,highlighting that AMF reduced N losses primarily by mitigating N leaching,while N_(2)O emissions played a marginal *** mycorrhizal fungi reduced N_(2)O emissions directly through the promotion of N_(2)O-consuming *** underlying mechanism for reducing N leaching is mainly the AMF-mediated improved nutrient uptake and AMF-associated microbial *** results indicate that synergies between AMF and other soil microorganisms cannot be ignored in N cycling and that the integral role of AMF in N cycling terrestrial ecosystems can buffer the upcoming global changes.

关键词： N cycling N enrichment N uptake N:P ratio plant community structure symbiotic soil fungi

Arc and droplet Behaviors in Horizontal Short-Arc Pulsed Gas Metal Arc Welding of 9%Ni Steel with ErNiCrMo-3 Welding Wire

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Journal of Shanghai Jiaotong university(Science) 2024年第2期29卷 361-376页

作者：刘轶玮华学明吴东升李芳蔡艳王欢杨修荣 Shanghai Key Laboratory of Material Laser processing and Modification Shanghai Jiao Tong UniversityShanghai 200240China Hudong-Zhonghua Shipbuilding(group)Co. Ltd.Shanghai 200129China Zhuhai Cowin Welding Equipment&Consumables Co. Ltd.Zhuhai 519015GuangdongChina

Short-arc pulsed gas metal arc welding(P-GMAW)was used to solve the dificulties of molten pool spreading and droplet transfer of Ni-based welding *** of short-circuit current was used to reduce *** length stabilizer was used to acquire a proper and stable arc length maintained at the critical position where short circuit starts to ***-arc P-GMAW with or without arc length stabilizer was *** droplet transfer,arc behaviors and weld bead profiles were investigated and compared based on the high-speed photography and observation of weld *** the arc length stabilizer was deactivated,the arc length was unstable and too *** droplet transfer mode was mainly short circuit partial transfer,with only a small part of the droplet transferred into the molten pool,with the characteristics of no obvious necking,a few spatters,small droplet impact,long short circuit duration and high short-circuit *** was also a small proportion of short circuit complete transfer with obvious necking,larger droplet impact,shorter short-circuit duration and lower short-circuit *** arc length stabilizer,droplet transfer modes were short circuit complete transfer and spray *** spray transfer had the largest droplet impact,no short circuit and no *** the arc length stabilizer activated,a deep penetration,a high penetration ratio,a small reinforcement and a large reinforcement factor were *** provides an innovative method to solve the difficulties of droplet transfer and molten pool spreading and eliminate the incomplete fusion in the GMAW of 9%Ni steel with nickel-based alloy welding wire.

关键词： droplet transfer arc behaviors weld bead formation short-arc pulsed gas metal arc welding(P-GMAW) high nickel alloy 9%Ni steel

role of microbiota-gut-brain axis in neurodegenerative diseases and the potential of microbiome-targeted d ietary strategies: A review of current evidence and future perspective

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Food Science and Human Wellness 2024年

作者： Shuqing Zhang Wenjing Chen Chen Ma Yinghua Luo Li dong Xiaosong Hu Fang Chen daotong Li College of Food Science and Nutritional Engineering National Engineering research Centre for Fruit and Vegetable processing Key Laboratory of Fruits and Vegetables processing Ministry of Agriculture Engineering research Centre for Fruits and Vegetables processing Ministry of Education China Agricultural University

Neurodegenerative diseases (Nds)， mainly including Alzheimer’s disease， Parkinson’s disease， and Multiple sclerosis， represent a major public health challenge with the steady increase of aging population worldwide. Emerging evidence has revealed the key role of the microbiota-gut-brain axis in the pathogenesis of Nds. diet is one of the most important environmental factors shaping the structure and function of gut microbiota. Manipulating the gut microbiota through specific diet patterns may represent a promising approach for Nds prevention. In this review， we highlight gut microbiota variations in Nds， outline several crucial signaling pathways of the gut-brain communication， and discuss the interplay of nutrients-microbes and biological effect of diet-derived microbial metabolites on neural physiology. In particular， we summarized the current knowledge about the application of dietary patterns in Nds to prevent disease progression via the modulation of the gut microbiota. Our study provides novel insights on the diet-microbiota-gut-brain axis in neurodegenerative disorders and highlights the potential of developing microbiome-targeted personalized dietary intervention for Nds management.

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Investigation of conformational changes of cathepsin B as a feasibility assessment for NaCl reduction in Jinhua ham

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Food Science and Human Wellness 2024年

作者： Shiqi Hu Guanghong Zhou Xinglian Xu Wangang Zhang Chunbao Li Key Laboratory of Meat processing and Quality Control Ministry of Education Key Laboratory of Meat processing Ministry of Agriculture and rural Affairs Jiangsu Synergetic Innovation Center of Meat processing and Quality Control College of Food Science and Technology Nanjing Agricultural University

To regulate the sodium chloride content in Jinhua ham， the impact of NaCl on the activity and conformation of cathepsin B was investigated using spectroscopy and computational methods. The results showed that the activity of cathepsin B decreased with an increase in Na+cation content and temperature. Additionally， decreased α-helix content and increased β-sheet content were observed. The increase in sulfhydryl group content was attributed to the breaking of original disulfide bonds in the molecular structure or the release of embedded groups. Furthermore， the surface hydrophobicity gradually declined， which was consistent with the analysis of endogenous fluorescence spectroscopy. At the molecular level， the number of hydrogen bonds formed in NaCl-treated samples decreased， and the interactions between the hydrogen bonding were less powerful， which caused instability in the binding of the protein and substrate. The conformation of cathepsin B accurately characterized its activity， and the structural changes had a macroscopic effect on the decrease in protease activity.

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Ginsenoside rb3 prevents myocardial injury in sleep-deprived mice by suppressing ferroptosis through SIrT3/P53/SCL7A11/GPX4 axis

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Food Science and Human Wellness 2024年

作者： Yi Wu Yuping Miao Xuanxuan Huang Yin Cao Zhengtao Wang Xiaojun Wu Key Laboratory of Xin'an Medicine Ministry of Education Anhui Province Key Laboratory of r&d of Chinese Medicine Anhui University of Chinese Medicine Shanghai Key Laboratory of Compound Chinese Medicines Institute of Chinese Materia Medica Shanghai University of Traditional Chinese Medicine

Ginsenoside rb3 (Grb3) is an active ingredient extracted from Panax ginseng， which is known to enhance blood supply to heart and treat a variety of cardiac diseases. The aim of this study was to investigate the effect of Grb3 on myocardial injury induced by sleep deprivation and its mechanisms. Grb3 20 mg/kg group showed lower heart rate (438.2 ± 10.06 bpm)， Creatine kinase (27.43 ± 2.85 U / mg prot) and Lactate dehydrogenase (412.9 ± 35.65 U / L) than Sd group (592.0 ± 7.78 bpm， 44.18 ± 1.24 U / mg prot， 526.6 ± 38.18 U / L). Grb3 improved myocardial tissue damage and abnormal mitochondrial morphological changes. Grb3 also reduced the abnormal proteins expression of Atrial Natriuretic Peptide (ANP)， Sirtuin3 (SIrT3)， Tumor Protein P53 (P53)， Solute Carrier Family 7 (SLC7A11)， Glutathione peroxidase 4 (GPX4)， Transferrin receptor Protein 1 (TFrC)， Acyl-CoA synthetase long chain family member 4 (ACSL4)， Heme Oxygenase-1 (HO-1)， Ferritin heavy polypeptide 1 (FTH1)， Ferroptosis suppressor protein 1 (FSP1). Grb3 ameliorated oxidative stress， such as Malondialdehyde (MdA，)， Glutathione (GSH)， and Superoxide dismutase (SOd). Grb3 also decreased reactive Oxygen Species (rOS) content， restored cellular abnormal mitochondrial morphology and reversed the expression of ferroptosis-related proteins on H9c2 cells pretreated with Erastin. While the above effect could be reversed by 3-TYP. In summary， Grb3 exerts cardioprotective effects by regulating SIrT3/P53/SCL7A11/GPX4 axis to inhibit myocardial ferroptosis in sleep deprived mice. The findings imply that Grb3 holds promising potential for innovative approaches to safeguarding human cardiac health.

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