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Wearable synthetic leather-based high-performance X-ray shielding materials enabled by the plant polyphenol-and hierarchical structure-facilitated dispersion

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胶原与皮革（英文） 2024年第1期6卷 113-126页

作者： linping Yan Jibo Zhou Hao li Rui zhong Junxin Zhuang Xiaohui Xu Yaping Wang Xuepin liao Bi Shi College of Biomass Science and Engineering Sichuan UniversityChengdu 610065People's Republic of China Key laboratory of Radiation Physics and Technology Ministry of Education Institute of Nuclear Science and TechnologySichuan UniversityChengdu 610065People's Republic of China Mingxin Automotive leather Co. Ltd.Jiaxing 314006People's Republic of China Department of Chemistry Materials Innovation FactoryUniversity of LiverpoolLiverpool L7 3NYUK College of Biomass Science and Engineering Sichuan UniversityChengdu 610065People's Republic of China National Engineering labora-tory for Clean Technology of leather Manufacture Sichuan UniversityChengdu 610065People's Republic of China

Effective protection against X-ray is the premise of utilizing the X-ray,thus it is critical to develop novel X-ray shield-ing materials with both low density and high X-ray attenuation *** the even distribution of high-Z element components is of great significance for increasing the attenuation efficiency of X-ray shielding materials,in this study,the microfiber membrane(MFM),a type of synthetic leather featuring hierarchical structure was chosen to provide large surface area for the dispersion of rare earth(RE)***,plant polyphenol was utilized to achieve the stable loading and uniform dispersion of the Ce or Er into *** from the assistance of polyphenol and hierarchical structure of MFM,the even dispersion of RE element was successfully *** resultant shielding materials displayed approximately 10％superior X-ray attenuation efficiency compared to that without polyphenol,and an averagely 9％increment in X-ray attenuation efficiency than that without hierarchical ***,the obtained composite with a thickness of 2.8 mm displayed superior X-ray shielding performance compared to 0.25 mm lead sheet in 16-83 keV and retained an ultralow density of 1.4 g *** research results would shed new light on the manufacture of high-performance X-ray shielding materials with excellent X-ray shielding performance.

关键词： X-ray shielding Plant polyphenol Microfiber membrane Synthetic leather Hierarchical structure Dispersity

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Mechanisms of vacuolar phosphate efflux supporting soybean root hair growth in response to phosphate deficiency

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Journal of Integrative Plant Biology 2024年第9期66卷 1983-1999页

作者： zhong Shan Yanli Chu Guangfang Sun Rui Chen Jun Yan Qiwei He Yingna liu Bin Wang Mingda luan Wenzhi lan School of life Sciences Nanjing UniversityNanjing 210023China Institute of Future Agriculture Northwest A&F UniversityYangling 712100China

Phosphorus is an essential macronutrient for plant growth and *** response to phosphate(Pi)deficiency,plants rapidly produce a substitutive amount of root hairs;however,the mechanisms underlying Pi supply for root hair growth remain ***,we observed that soybean(Glycine max)plants maintain a consistent level of Pi within root hairs even under external Pi *** therefore investigated the role of vacuole-stored Pi,a major Pi reservoir in plant cells,in supporting root hair growth under Pi-deficient *** findings indicated that two vacuolar Pi efflux(VPE)transporters,GmVPE1 and GmVPE2,remobilize vacuolar stored Pi to sustain cytosolic Pi content in root hair *** analysis showed that double mutants of GmVPE1 and GmVPE2 exhibited reduced root hair growth under low Pi ***,GmVPE1 and GmVPE2 were highly expressed in root hairs,with their expression levels significantly upregulated by low Pi *** analysis revealed that GmRSl2(ROOT HAIR DEFECTIVE 6-like 2),a transcription factor involved in root hair morphogenesis,directly binds to the promoter regions of GmVPE1 and GmVPE2,and promotes their expressions under low Pi ***,mutants lacking both GmRSl2 and its homolog GmRSl3 exhibited impaired root hair growth under low Pi stress,which was rescued by overexpressing either GmVPE1 or *** together,our study has identified a module comprising vacuolar Pi exporters and transcription factors responsible for remobilizing vacuolar Pi to support root hair growth in response to Pi deficiency in soybean.

关键词： mineral deficiency remobilization root remodeling transcriptional regulation

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Simultaneous enhancement of strength and ductility via microband formation and nanotwinning in an l1_(2)-strengthened alloy

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Fundamental Research 2024年第1期4卷 147-157页

作者： lu Yang Dingshan liang Zhuo Cheng Ranxi Duan Chuanxin zhong Junhua luan Zengbao Jiao Fuzeng Ren Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China Department of Mechanical Engineering The Hong Kong Polytechnic UniversityHong Kong 999077China

Metallic alloys with high strength and large ductility are required for extreme structural ***,the achievement of ultrahigh strength often results in a substantially decreased ***,we report a strategy to achieve the strength-ductility synergy by tailoring the alloy composition to control the local stacking fault energy(SFE)of the face-centered-cubic(fcc)matrix in an l1_(2)-strengthened superlattice *** a proof of concept,based on the thermodynamic calculations,we developed a non-equiatomic CoCrNi_(2)(Al_(0.2)Nb_(0.2))alloy using phase separation to create a near-equiatomic low SFE disordered CoCrNi medium-entropy alloy matrix with in situ formed high-content coherent Ni_(3)(Al,Nb)-type ordered nanoprecipitates(∼12 nm).The alloy achieves a high tensile strength up to 1.6 GPa and a uniform ductility of 33%.The low SFE of the fcc matrix promotes the formation of nanotwins and parallel microbands during plastic deformation which could remarkably enhance the strain hardening *** work provides a strategy for developing ultrahigh-strength alloys with large uniform ductility.

关键词： l1_(2)-strengthened superlattice alloy Stacking fault energy Nanotwins Microbands Strain hardening

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A novel profile modification HPF-Co gel satisfied with fractured low permeability reservoirs in high temperature and high salinity

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Petroleum Science 2024年第1期21卷 683-693页

作者： Ya-Kai li Ji-Rui Hou Wei-Peng Wu Ming Qu Tuo liang Wei-Xin zhong Yu-Chen Wen Hai-Tong Sun Yi-Nuo Pan China University of Petroleum Beijing Beijing102249China PetroChina Tarim Oilfield Company Korla 841000XinjiangChina Key laboratory of Improving Oil and Gas Recovery of Ministry of Education Northeast Petroleum University Daqing 163318HeilongjiangChina Xi'an Shiyou University Xi'an 710065ShaanxiChina Northwest Oilfield Company SINOPECUrumqi 830011XinjiangChina

Conformance control and water plugging are a widely used EOR method in mature ***,majority of conformance control and water plugging agents are unavoidable dehydrated situation in high-temperature and high-salinity low permeability ***,a novel conformance control system HPF-Co gel,based on high-temperature stabilizer(CoCl_(2)·H_(2)O,CCH)is *** HPF-Co bulk gel has better performances with high temperature(120℃)and high salinity(1×10^(5)mg/l).According to Sydansk coding system,the gel strength of HPF-Co with CCH is increased to code *** dehydration rate of HPF-Co gel is 32.0%after aging for 150 d at 120℃,showing excellent thermal *** rheological properties of HPF gel and HPF-Co gel are also *** results show that the storage modulus(G′)of HPF-Co gel is always greater than that of HPF *** effect of CCH on the microstructure of the gel is *** results show that the HPF-Co gel with CCH has a denser gel network,and the diameter of the three-dimensional network skeleton is 1.5-3.5μ*** 90 d of aging,HPF-Co gel still has a good three-dimensional *** spectroscopy results show that CCH forms coordination bonds with N and O atoms in the gel amide group,which can suppress the vibration of cross-linked sites and improve the stability at high *** core plugging test determines the optimized polymer gel injection strategy and injection velocity with HPF-Co bulk gel system,plugging rate exceeding 98%.Moreover,the results of subsequent waterflooding recovery can be improved by 17%.

关键词： low permeability reservoir High-temperature resistant gel Complexation reaction Polymer gel injection strategy Plugging rate Enhanced oil recovery

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Preparation of lithium-ion battery anode materials from graphitized spent carbon cathode derived from aluminum electrolysis

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International Journal of Minerals,Metallurgy and Materials 2024年第11期31卷 2466-2475页

作者： Zhihao Zheng Mingzhuang Xie Guoqing Yu Zegang Wu Jingjing zhong Yi Wang Hongliang Zhao Fengqin liu State Key laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China

Graphitized spent carbon cathode(SCC)is a hazardous solid waste generated in the aluminum electrolysis *** this study,a flotation-acid leaching process is proposed for the purification of graphitized SCC,and the use of the purified SCC as an anode material for lithium-ion batteries is *** flotation and acid leaching processes were separately optimized through one-way *** maximum SCC carbon content(93wt%)was achieved at a 90%proportion of−200-mesh flotation particle size,a slurry concentration of 10wt%,a rotation speed of 1600 r/min,and an inflatable capacity of 0.2 m^(3)/h(referred to as FSCC).In the subsequent acid leaching process,the SCC carbon content reached 99.58wt%at a leaching concentration of 5 mol/l,a leaching time of 100 min,a leaching temperature of 85°C,and an HCl/FSCC volume ratio of 5:*** purified graphitized SCC(referred to as FSCC-Cl)was utilized as an anode material,and it exhibited an initial capacity of 348.2 mAh/g at 0.1 C and a reversible capacity of 347.8 mAh/g after 100 ***,compared with commercial graphite,FSCC-Cl exhibited better reversibility and cycle ***,purified SCC is an important candidate for anode material,and the flotation-acid leaching purification method is suitable for the resourceful recycling of SCC.

关键词： graphitized spent carbon cathode hazardous solid waste flotation acid leaching lithium-ion batteries

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Differential expression profile of circular RNAs in mouse peritoneum with peritoneal fibrosis and the potential regulatory role of novel_circ_0007527

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Genes & Diseases 2024年第3期11卷 59-62页

作者： Yingfeng Shi Yan Hu Hui Chen Jinqing li Min Tao Xun Zhou Qin zhong Andong Qiu Shougang Zhuang Na liu Department of Nephrology Shanghai East HospitalTongji University School of MedicineShanghai 200120China School of life Science and Technology Advanced Institute of Translational MedicineTongji UniversityShanghai 200092China Department of Medicine Rhode Island Hospital and Alpert Medical SchoolBrown UniversityProvidenceRI 02912USA

CircRNAs,a novel type of endogenous non-coding RNAs(ncRNAs),are typically produced by back-splicing from exons of protein-coding genes,which are characterized by a covalently closed structure with neither 5'to 3'polarity nor a poly(A)tail.'On the one hand,circRNAs are involved in the regulation of a variety of important biological processes,such as apoptosis,proliferation,migration,and inflammatory responses.'On the other hand,the relationship between circRNAs and several fibrotic diseases has been reported.2 However.

关键词： endogenous peritoneal diseases

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Ba^(2+)/Ca^(2+)co-crosslinked alginate hydrogel filtration membrane with high strength,high flux and stability for dye/salt separation

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Chinese Chemical letters 2024年第5期35卷 320-324页

作者： Ningning Gao Yue Zhang Zhenhao Yang lijing Xu Kongyin Zhao Qingping Xin Junkui Gao Junjun Shi Jin zhong Huiguo Wang SINOPEC Research Institute of Petroleum Processing CO. LTD.Beijing 100083China State Key laboratory of Separation Membranes and Membrane Processes/National Centre for International Joint Research on Separation Membranes Tiangong UniversityTianjin 300387China

Alginate is a natural polysaccharide *** filtration membranes prepared from alginate show excellent fouling resistance and controllable separation performance,but poor mechanical properties limit the use of algae *** this study,Ba^(2+)/Ca^(2+)co-crosslinked alginate(Ba/CaAlg)hydrogel membrane was prepared by cross-linking sodium alginate with a blend aqueous solution of barium ions and calcium ions,and the membrane was applied to the separation of dyes/salts from dyeing *** with the CaAlg membrane,the Ba/CaAlg hydrogel membrane exhibited more stable structure,and the mechanical properties and salt tolerance of the membrane were significantly *** flux of Ba/CaAlg membrane for methyl blue/sodium chloride mixed solution reached 43.5 l m^(−2) h^(−1),which was significantly higher than that of CaAlg ***,the Ba/CaAlg membrane showed higher dye rejection(>99.6%)and lower salt rejection(lg membrane was preliminarily simulated by molecular dynamics,and the pore size and distribution of the membrane were *** Ba/CaAlg membrane has a broad application prospect in dyes/salts separation.

关键词： Alginate Filtration membrane Ba^(2+)/Ca^(2+)ion crosslinking Dye/salt separation Molecular dynamic simulation Hydrogel

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Root cause of corrosion failure of tin coating on wire clamp in marine atmosphere

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Journal of Iron and Steel Research International 2024年第4期31卷 998-1014页

作者： Zhen zhong Wang-yan ly Teng-yuan liu Yi Xie Yang Yang Zhen-zhu Wang Deng-ke li Xiao-bo li Tang-qing Wu School of Materials Science and Engineering Xiangtan UniversityXiangtan 411105HunanChina Electric Power Research Institute of Guangdong Power Grid Co. Ltd.Guangzhou 510080GuangdongChina Shenyang National l aboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016LiaoningChina School of Materials Science and Engineering.University of Science and Technology of China Shenyang 110016LiaoningChina Electric Power Research Institute State Grid Hunan Electric Power CompanyChangsha 410007HunanChina School of Mechanical Engineering and Mechanics Xiangtan UniversityXiangtan 411105HunanChina School of Information Science and Engineering Changsha Normal UniversityChangsha 410199HunanChina

The failure cause of a tinned copper wire clamp in marine atmosphere was studied systematically by X-ray photoelectron spectroscopy,scanning electron microscopy with energy dispersive spectroscopy and electrochemical *** main components of the green rust on the surface of the damaged wire clamp are SnO_(2),CuO,Cu_(2)Cl(OH)_(3) and CuCO(OH)_(2).Much of green rust distributes at the platform edge along the axial direction on the crimp connection,and severe corrosion and corrosion pits occur at the platform edge zone along the axial *** enriching Cl-at the marine atmosphere and the existing O_(2) in air collectively enhance the corrosion process of the tin coating and the copper *** element model results show that the residual stress and strain of the tin coating are the largest at the platform edge along the axial direction on the crimp connection,and the corresponding electrode potential of the tin coating at this zone drops *** above results indicate that the residual strain increases the driving force of the corrosion electrochemical reactions and accelerates the corrosion rate and the pit corrosion of the tin coating at this zone.

关键词： Tin coating Marine atmosphere Residual strain-Chloride ion Corrosion failure

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Huangqin Decoction Delays Progress of Colitis-Associated Carcinogenesis by Regulating Nrf2/HO-1 Antioxidant Signal Pathwayin Mice

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Chinese Journal of Integrative Medicine 2024年第2期30卷 135-142页

作者： GU li-mei lI He-zhong GAO lei lI Hui WEI lan-fu PAN Cheng-yu WU Ke-xuan TIAN Yao-zhou Department of Gastrointestinal Endoscopy Affiliated Hospital of Nanjing University of Chinese MedicineNanjing(210029)China Department of Gastroenterology Affiliated Hospital of Integrated Traditional Chinese and Western MedicineNanjing University of Chinese MedicineNanjing(210028)China School of Integrated Chinese and Western Medicine Nanjing University of Chinese MedicineNanjing(210023)China

Objective:To investigate the effect of Huangqin Decoction(HQD)on nuclear factor erythroid 2 related-factor 2(Nrf2)/heme oxygenase(HO-1)signaling pathway by inducing the colitis-associated carcinogenesis(CAC)model mice with azoxymethane(AOM)/dextran sodium sulfate(DSS).Methods:The chemical components of HQD were analyzed by liquid chromatography-quadrupole-time-of-flight mass spectrometry(lC-Q-TOF-MS/MS)to determine the molecular constituents of *** 48 C57Bl/6J mice were randomly divided into 6 groups by a random number table,including control,model(AOM/DSS),mesalazine(MS),low-,medium-,and high-dose HQD(HQD-l,HQD-M,and HQD-H)groups,8 mice in each *** for the control group,the mice in the other groups were intraperitoneally injected with AOM(10 mg/kg)and administrated with 2.5%DSS orally for 1 week every two weeks(totally 3 rounds of DSS)to construct a colitis-associated carcinogenesis mouse *** mice in the HQD-l,HQD-M and HQD-H groups were given HQD by gavage at doses of 2.925,5.85,and 11.7 g/kg,respectively;the mice in the MS group was given a suspension of MS at a dose of 0.043 g/kg(totally 11 weeks).The serum levels of malondialdehyde(MDA)and superoxide dismutase(SOD)were measured by enzyme-linked immunosorbent *** mRNA and protein expression levels of Nrf2,HO-1,and inhibitory KElCH like ECH-related protein 1(Keap1)in colon tissue were detected by quantitative real-time PCR,immunohistochemistry,and Westem blot,***:lC-Q-TOF-MS/MS analysis revealed that the chemical constituents of HQD include baicalin,paeoniflorin,and glycyrrhizic *** to the control group,significantly higher MDA levels and lower SOD levels were observed in the model group(Ply decreased,and the expression of Keap1 increased(Pl group,serum MDA level was decreased and SOD level was increased in the HQD-M,HQD-H and MS groups(P<0.05).Higher expressions of

关键词： Huangqin Decoction colitis-associated carcinogenesis nuclear factor erythroid 2 related-factor 2/heme oxygenase signaling pathway oxidative stress Chinese medicine

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Evaluating the influence of sarcopenia and myosteatosis on clinical outcomes in gastric cancer patients undergoing immune checkpoint inhibitor

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World Journal of Gastroenterology 2024年第8期30卷 863-880页

作者： Gui-Ming Deng Hai-Bin Song zhong-Ze Du Ying-Wei Xue Hong-Jiang Song Yuan-Zhou li Department of Gastrointestinal Surgery Harbin Medical University Cancer HospitalHarbin 150081Heilongjiang ProvinceChina Department of Radiology Harbin Medical University Cancer HospitalHarbin 150081Heilongjiang ProvinceChina

BACKGROUND The development and progression of gastric cancer(GC)are closely linked to the nutritional status of *** immunotherapy has been demonstrated to be clinically effective,the relationships of sarcopenia and myosteatosis with the use of immune checkpoint inhibitors(ICIs)in patients with gastric cancer remain to be *** We performed a retrospective study of patients who were undergoing immuno-therapy for *** the evaluation of sarcopenia,the optimal cut-off value for the skeletal muscle index was established using receiver operating characteristic analysis of data obtained from pre-treatment computed tomography images at the l3 vertebral *** was defined using the mean skeletal muscle density(SMD),with a threshold value ofld units(HU)for patients with a body mass index(BMI)log-rank test was used to compare progression-free survival(PFS)and overall survival(OS),and a Cox proportional hazard model was used to identify prognostic *** were developed to predict the PFS and OS of patients on the basis of the results of multivariate *** We studied 115 patients who were undergoing ICI therapy for GC,of whom 27.4%had sarcopenia and 29.8%had *** with sarcopenia or myosteatosis had significantly shorter PFS and OS than those without these ***,both sarcopenia and myosteatosis were found to be independent predictors of PFS and OS in patients with GC administering an *** prediction models created for PFS and OS were associated with C-indexes of 0.758 and 0.781,*** The presence of sarcopenia or myosteatosis is a reliable predictor of the clinical outcomes of patients with GC who are undergoing treatment with an ICI.

关键词： Gastric cancer Sarcopenia Myosteatosis,Immune checkpoint inhibitor Prognostic factor Overall survival Progression-free survival

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