维普中文期刊产品整合服务
11篇 您的检索式:作者名="LI Linqiang"
    题名 作者 年代 出处 被引量
1Design and Synthesis of Cu@CuS Yolk–Shell Structures with Enhanced Photocatalytic Activity显示文摘Non-spherical Cu@Cu S yolk–shell structures are successfully obtained using Cu_2 O cube templates in a process combining rapid surface sulfidation followed by disproportionation of the Cu_2 O core upon treatment with a hydrochloric acid solution. By employing the above method,Cu@Cu S yolk–shell structures with different morphologies,including octahedral, truncated octahedral, and cuboctahedral shapes, can be synthesized. The void space within the hollow structures provides a unique confined space, where the metallic copper present in the core of a shell can be protected from agglomeration and oxidation. Furthermore,the presence of metal copper in these hollow structurescontributes to improvement in the photocatalytic properties of these materials. The application of these Cu@Cu S structures indeed shows clearly improved photocatalytic performance.Qiuyan Li Fan Wang Linqiang Sun Zhe Jiang Tingting Ye Meng Chen Qiang Bai Chao Wang Xiguang Han 2017Nano-Micro Letters2017,9,3:6
2Characterization of a Lacustrine Shale Reservoir and the Evolution of its Nanopores: A Case Study of the Upper Cretaceous Qingshankou Formation in the Songliao Basin, Northeastern China显示文摘The Songliao Basin is one of the most important petroliferous basins in northern China. With a recent gradual decline in conventional oil production in the basin, the exploration and development of unconventional resources are becoming increasingly urgent. The Qingshankou Formation consists of typical Upper Cretaceous continental strata, and represents a promising and practical replacement resource for shale oil in the Songliao Basin. Previous studies have shown that low-mature to mature Qingshankou shale mainly preserves type Ⅰ and type Ⅱ1 organic matter, with relatively high total organic carbon(TOC) content. It is estimated that there is a great potential to explore for shale oil resources in the Qingshankou Formation in this basin. However, not enough systematic research has been conducted on pore characteristics and their main controlling factors in this lacustrine shale reservoir. In this study, 19 Qingshankou shales from two wells drilled in the study area were tested and analyzed for mineral composition, pore distribution and feature evolution using Xray diffraction(XRD), scanning electron microscopy(SEM), low-pressure nitrogen gas adsorption(N2-GA), and thermal simulation experiments. The XRD results show that clay, quartz, and feldspar are the dominant mineral constituents of Qingshankou shale. The clay minerals are mostly illite/smectite mixed layers with a mean content of 83.5%, followed by illite, chlorite, and kaolinite. There are abundant deposits of clay-rich shale in the Qingshankou Formation in the study area, within which many mineral and organic matter pores were observed using SEM. Mineral pores contribute the most to shale porosity;specifically, clay mineral pores and carbonate pores comprise most of the mineral pores in the shale. Among the three types of organic matter pores, type B is more dominant the other two. Pores with diameters greater than 10 nm supply the main pore volume;most are half-open slits and wedge-shaped pores. The total pore volume had no obvious linear relationship with TOC content, but had some degree of positive correlation with the content of quartz + feldspar and clay minerals respectively. However, it was negatively correlated with carbonate mineral content. The specific surface area of the pores is negatively related to TOC content, average pore diameter, and carbonate mineral content. Moreover, it had a somewhat positive correlation with clay mineral content and no clear linear relationship with the content of quartz + feldspar. With increases in maturity, there was also an increase in the number of carbonate mineral dissolution pores and organic matter pores, average pore diameter, and pore volume, whereas there was a decrease in specific surface area of the pores. Generally, the Qingshankou shale is at a low-mature to mature stage with a TOC content of more than 1.0%, and could be as thick as 250 m in the study area. Pores with diameters of more than 10 nm are well-developed in the shale. This research illustrates that there are favorable conditions for shale oil occurrence and enrichment in the Qingshankou shale in the study area.ZHANG Xu LIU Chenglin LI Bing WU Linqiang GUI Herong WANG Ziling ZHANG Zhihui LIANG Dexiu 2020Acta Geologica Sinica(English Edition)2020,94,2:2
3Many-lined Sun Skinks(Mabuya multifasciata) Shift Their Thermal Preferences Downwards When Fasted显示文摘We maintained adult many-lined sun skinks(Mabuya multifasciata; 12 females and 12 males) collected from Hainan(southern China) in September 2006 in two outdoor enclosures to examine the effect of feeding condition on selected body temperature(Tsel).Skinks shifted their thermal preferences when fasted.Temporal variation in Tsel was not found within each sex feeding condition combination,and neither in fed nor in fasted skinks did the mean values for Tsel differ between sexes.Body temperatures selected by fed skinks fell within the range from 30.2 to 33.9 C,and those selected by fasted skinks within the range from 25.1 to 31.8 C.Body temperatures(31.8 0.3 C) selected by fed skinks were on average 4.0 C higher than those(27.8 0.4 C) selected by fasted skinks.Fasted skinks had no difficulty in attaining higher body temperatures,but they voluntarily shift their thermal preferences downwards to save energy.This finding suggests an adaptive mechanism adopted by many-lined sun skinks to enhance their fitness during the periods when food availability is low.LI Hong MAO Luxi SHI Linqiang JI Xiang 2010Asian Herpetological Research2010,1,1:2
4MCTSR:A super-resolution method for defects in gas-insulated switchgear X-ray images based on multi-scale contextual transformers显示文摘As the core equipment of transmission and distribution hubs,the operational status of gas-insulated switchgear(GIS)is closely linked to the safety of the power system.Recently,X-ray digital imaging technology has been extensively used in GIS equipment fault detection.However,the X-ray image of GIS is blurred,which is not conducive to the detection of tiny defects.Thus,a super-resolution method for GIS X-ray images based on multi-scale context transformers is proposed in this study,namely MCTSR.Firstly,a second-order image degradation model is introduced to generate GIS X-ray lowresolution images that more closely resemble the real world.Secondly,a contextual transformer gate module is constructed to improve attention to tiny defects in GIS X-ray images.Thirdly,a U-Net discriminator network based on multi-scale contextual transformers is intended to enrich the information of the generated images.Finally,the proposed discriminator is combined with the existing generator to compose a superresolution method applicable to GIS X-ray images.The experimental results demonstrate that the method outperforms other methods in peak signal-to-noise ratio and structural similarity on the constructed GIS X-ray image dataset.In addition,the output image of the proposed method facilitates the subsequent defect detection.Guote Liu Jinhui Zhou Linqiang Xu Licheng Li Bing Luo Sijun Chen 2023High Voltage2023,8,3:1
5Response surface optimization of ultrasound-assisted polysaccharides extraction from pomegranate peel显示文摘ZHU Caiping ZHAI Xichuan LI Linqiang 2015Food Chemistry2015,177,15:1
6Trifunctionalization of Aryl Iodides with Two Distinct Nitrogen and Carbon Electrophiles by Palladium/Norbornene Catalysis显示文摘Main observation and conclusion Herein,we report a highly chemo-and regioselective vicinal trifunctionalization of aryl iodides by palladium/norbornene(Pd/NBE)catalysis.The key feature of this new method is the introduction of two distinct nitrogen and carbon electrophiles,with a large gap in reactivity,for ortho-unsubstituted aryl iodides via an intermolecular and intramolecular C―H functionalization,respectively.Eight types of ipso terminations can be coupled with both ortho-amination and ortho-alkylation,affording a variety of polysubstituted benzoheterocyclic scaffolds.Silicon-tethered substrates can lead to polyfucntional arenes via a single-step operation.Noteworthy,these products exhibit full-color-tunable strong fluorescence emissions with large Stokes shifts,and product 7r can serve as a fluorescent probe to specifically target lysosome in living cells.Jing Wang Hui Wang Zihan Wang Linqiang Li Cheng Qin Xinjun Luan 2021Chinese Journal of Chemistry2021,39,10:0
7Blue LED promotes the chemosensitivity of human hepatoma to Sorafenib by inducing DNA damage显示文摘Background:Phototherapies based on sunlight,infrared,ultraviolet,visible,and laser-based treatments present advantages like high curative effects,small invasion,and negligible adverse reactions in cancer treatment.We aimed to explore the potential therapeutic effects of blue light emitting diode(LED)in human hepatoma cells and decipher the underlying cellular and molecular mechanisms.Methods:Wound healing and transwell assays were employed to probe the inhibition of the invasion and migration of hepatocellular carcinoma cells in the presence of blue LED.The sphere-forming test was used to evaluate the effect of LED blue light irradiation on cancer stem cell properties.Immunofluorescence and western blotting were used to detect the changes inγ-H2AX.The Cell Counting Kit-8 assay,5-ethynyl-2′-deoxyuridine staining,and colony formation assay were used to detect the combined effect of blue LED and sorafenib on cell proliferation inhibition.Results:We demonstrated that the irradiation of blue LED light in hepatoma cells could lead to cell proliferation reduction along with the increase of cell apoptosis.Simultaneously,blue LED irradiation also markedly suppressed the migration and invasion ability of human hepatoma cells.Sphere formation analysis further revealed the decreased cancer stemness of hepatoma cells upon blue LED irradiation.Mechanistically,blue LED irradiation significantly promoted the expression of the phosphorylation of the core histone protein H2AX(γ-H2AX),a sensitive molecular marker of DNA damage.In addition,we found that the combined treatment of blue LED irradiation and sorafenib increased cancer cell sensitivity to sorafenib.Conclusion:Collectively,we demonstrated that blue LED irradiation exhibited anti-tumor effects on liver cancer cells by inducing DNA damage and could enhance chemosensitivity of cancer cells,which represents a potential approach for human hepatoma treatment.TONG WANG JINHUAN HONG JIAJIE XIE QIAN LIU JINRUI YUE XUTING HE SHIYU GE TAO LI GUOXIN LIU BENZHI CAI LINQIANG LI YE YUAN 2023BIOCELL2023,47,8:0
8Identification of potential sex-related genes in Siniperca chuatsi显示文摘Mandarin fish(Siniperca chuatsi)is an economically important freshwater fish cultured in China.In this species,females grow faster than males.However,due to the lack of available genomic and transcriptome information,the mechanisms of sex differentiation remain poorly understood.In this study,Illumina high-throughput sequencing technology was used to sequence four cDNA libraries;the tissues examined included hypothalamus,pituitary gland,ovary,and testis.A total of 134124 high-quality unigenes were obtained on average length of 1361 bp and N50 of 3312 bp.A search of all-unigene sequences against NR,NT,SwissProt,KOG,KEGG,GO,and InterPro databases resulted in 59688(44.50%),76329(56.91%),50432(37.60%),45741(34.10%),48760(36.35%),5241(3.91%),and 46099(34.37%)annotations,respectively.In a comparison of ovarian and testicular libraries,15289 ovary-biased genes and 10035 testis-biased genes were identified,including a series of genes related to sex determination and differentiation,such as cyp19a1a,foxl2,sox9,dmrt1,amh,and others.In addition,49495 SSRs and 85899 SNPs were detected in transcriptome data.Quantitative real-time PCR results of 15 sex-related functional genes indicated that RNA-seq data was reliable.This study will contribute to a better understanding of the molecular mechanisms of sex differentiation and development in Mandarin fish.Qiaoying ZHU Chong HAN Cheng PENG Xingni ZHOU Chongwei WANG Linqiang HAN Shuisheng LI Guifeng LI Haoran LIN Yong ZHANG 2021Journal of Oceanology and Limnology2021,39,4:0
9Production of XX neo-male mandarin fish, Siniperca chuatsi, after sexual differentiation by oral administration of 17α-methyltestosterone显示文摘A well-known fact about mandarin fish(Siniperca chuatsi)is that females grow faster than males.Mandarin fish that have all-female populations have economic advantages,but traditional neo-male fish are difficult to produce.In this study,indirect feeding of 500 mg/kg 17α-methyltestosterone(MT)to XX mandarin fish(60 dpf,days post fertilization)with completely differentiated ovaries induced secondary sex reversal.At 40 days after MT treatment,14.7%of mandarin fish with complete reversal was produced,which showed for the first time that XX mandarin fishes with differentiated ovaries still have potentially bisexual germ cells and the plasticity of sex reversal.In the MT treatment group,there was no significant difference in survival compared to the control group.The body weight of the MT treatment group was significantly lower than that of the control group 40 days after treatment(dat)(P<0.05).During MT treatment,serum 11-KT and T concentrations increased and serum E2 concentration decreased in the MT treatment group,but there was no significant difference in hormone levels between the MT treatment group and the control group.A masculinization of mandarin fish was also confirmed by the expression patterns of sex-specific genes sox9,dmrt1,cyp19a1a and foxl2.A significant amount of sox9 and dmrt1 was expressed in the fish gonads of the MT treatment group,whereas cyp19a1a and foxl2 were minimally expressed in the fish gonads.Jingjun Huang Shiyan Liu Haofeng Ouyang Chong Han Meihui Li Linqiang Han Shuisheng Li Guifeng Li Haoran Lin Yong Zhang 2023Water Biology and Security2023,2,1:0
10The S100 calcium binding protein A11 promotes liver fibrogenesis by targeting TGF-βsignaling显示文摘Liver fibrosis is a key transformation stage and also a reversible pathological process in various types of chronic liver diseases.However,the pathogenesis of liver fibrosis still remains elusive.Here,we report that the calcium binding protein A11(S100A11)is consistently upregulated in the integrated data from GSE liver fibrosis and tree shrew liver proteomics.S100A11 is also experimentally activated in liver fibrosis in mouse,rat,tree shrew,and human with liver fibrosis.While overexpression of S100A11 in vivo and in vitro exacerbates liver fibrosis,the inhibition of S100A11 improves liver fibrosis.Mechanistically,S100A11 activates hepatic stellate cells(HSCs)and the fibrogenesis process via the regulation of the deacetylation of Smad3 in the TGF-βsignaling pathway.S100A11 physically interacts with SIRT6,a deacetylase of Smad2/3,which may competitively inhibit the interaction between SIRT6 and Smad2/3.The subsequent release and activation of Smad2/3 promote the activation of HSCs and fibrogenesis.Additionally,a significant elevation of S100A11 in serum is observed in clinical patients.Our study uncovers S100A11 as a novel profibrogenic factor in liver fibrosis,which may represent both a potential biomarker and a promising therapy target for treating liver fibrosis and fibrosis-related liver diseases.Tingting Zhu Linqiang Zhang Chengbin Li Xiaoqiong Tan Jing Liu Huiqin Li Qijing Fan Zhiguo Zhang Mingfeng Zhan Lin Fu Jinbo Luo Jiawei Geng Yingjie Wu Xiaoju Zou Bin Liang 2022Journal of Genetics and Genomics2022,49,4:0
11H_(2)S-releasing adhesive hydrogel as oral radioprotectant for gastrointestinal tract radioprotection显示文摘Radiation damage can cause a series of gastrointestinal(GI)tract diseases.The development of safe and effective GI tract radioprotectants still remains a great challenge clinically.Here,we firstly report an oral radioprotectant Gel@GYY that integrates a porous gelatin-based(Gel)hydrogel and a pH-responsive hydrogen sulfide(H2S)donor GYY4137(morpholin-4-ium 4 methoxyphenyl(morpholino)phosphinodithioate).Gel@GYY has a remarkable adhesion ability and long retention time,which not only enables responsive release of low-dose H2S in stomach and subsequently sustained release of H2S in the whole intestinal tract especially in the colon,but also ensures a close contact between H2S and GI tract.The released H2S can effectively scavenge free radicals induced by X-ray radiation,reduce lipid peroxidation level,repair DNA damage and recover vital superoxide dismutase and glutathione peroxidase activities.Meanwhile,the released H2S inhibits radiation-induced activation of nuclear factorκB(NF-κB),thus reducing inflammatory cytokines levels in GI tract.After treatment,Gel@GYY displays efficient excretion from mice body due to its biodegradability.This work provides a new insight for therapeutic application of intelligent H2S-releasing oral delivery system and potential alternative to clinical GI physical damage protectant.Peng Shan Jing Liao Jiayi Li Chengyan Wang Jie Zhou Linqiang Mei Yunlu Dai Qiang Wang Wenyan Yin 2024Chinese Chemical Letters2024,35,1:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费