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Fabrication of Bio-inspired Superamphiphobic Aluminum Alloy Surface with Oil-triggered Wenzel-Slippery Transition via Femtosecond Laser

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Journal of Bionic Engineering 2024年第3期21卷 1375-1387页

作者： Weijian Liu Feng Guan Fulin Zhang Chenrui Wang Wei Zheng lu zhai Zhaohua Lin Chunbao Liu AVIC Shenyang Aircraft Corporation Shenyang110000China School of Mechanical and Aerospace Engineering Jilin UniversityChangchun130022China

Surface-tension-confined microfluidic devices are platforms for manipulating 2D droplets based on patterned surfaces with special *** have great potential for various applications,but are still in the early stages of development and face some challenges that need to be *** study,inspired by the Wenzel and slippery transition of rose petal,develops a Patterned Oil-triggered Wenzel-slippery Surface(POWS)to examine the microfluidic devices.A laser-chemical composite method is established to fabricate POWSs,which take rose-petal-like microstructures as wettability pattern and a superamphiphobic surface as the *** prepared POWSs switched between high adhesion superhydrophobic state and the slippery liquid-infused surface state through adding or removing the lubricant *** the high adhesion superhydrophobic state,the droplets can be sticked on the *** the slippery liquid-infused state,the droplet can slide along the wettability pattern as the designed route.A POWS-based droplet reactor is further constructed,on which,the droplets can be remotely controlled to move,mix and react,as *** a POWS,which manipulates droplets with surface tension controlled by the switchable wettability patterns,would be a promising candidate to construct multiple surface-tension-confined microfluidic *** addition,the fabrication technique and design principle proposed here may aid the development of various field related to the bio-inspired surfaces,such as water collection,desalination and high throughput analysis,etc.

关键词： Biomaterials Bio-inspired surface Oil-triggered wenzel-slippery transition Superhydrophobicity Femtosecondlaser

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Human disturbance exacerbated erosion and deposition in the karst peak-cluster depressions during the Ming and Qing dynasties

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Science China Earth Sciences 2024年第11期 3550-3561页

作者： Shuai YUAN Yuemin YUE Xinbao ZHANG lu WANG lu zhai Kelin WANG Key Laboratory for Agro-Ecological Processes in Subtropical Region Institute of Subtropical Agriculture Chinese Academy of Sciences Huanjiang Observation and Research Station for Karst Ecosystems Chinese Academy of Sciences University of Chinese Academy of Sciences Institute of Mountain Hazards and Environment Ministry of Water Resources Chinese Academy of Sciences State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences

Under the background of large-scale ecological restoration, China's southwestern karst region has become a hotspot of global vegetation cover “greening” in the past 20 years. However, because of geological constraints, it is difficult to restore the forest landscapes in some areas. It is urgent to understand the impacts of human disturbances during the historical period on the difficult-to-forestation rocky-desertification areas of the karst region in order to guide future afforestation. In this study, we quantified the changes of specific sediment yield in typical karst depressions over the past 500 years by using137Cs,210Pb, and14C dating methods in karst depressions, and identified the main human disturbances related to historical erosion and sedimentation by combining with historical data. The results showed that the erosion and sedimentation of the three depressions in 1921–1963 were significantly higher than that in 1963–2021, and the sedimentation rate(0.64–1.33 cm a-1) and the specific sediment yield(2.51–13.11 t ha-1a-1) during Ming and Qing dynasties（1504–1812） were higher than the sedimentation rate(0.26–0.95 cm a-1) and specific sediment yield(0.95–6.99 t ha-1a-1) in the recent century（1921–2021）. Reconstruction data and literature from the Ming and Qing dynasties show an empirical link between changes in population, arable land, food, forest area,and deforestation events during the same period. It was found that the population and arable land in Guangxi increased more than three-fold and the forest area decreased significantly in the 17th century after the migration of the Yao ethnic group and the introduction of maize to the region, which may be the main reason for intensifying the erosion of depressions. This study is of great significance to understanding the evolution history of rocky desertification in this region and to answer the potential of afforestation.

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Neuroprotective effect of Naochuxue prescription(脑出血方) on intracerebral hemorrhage:inhibition of autophagy via downregulating high mobility group box-1

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Journal of Traditional Chinese Medicine 2024年第5期44卷 944-953页

作者： JIN Hong WANG Xinna WANG Ruonan LI Jinjian YU Junchao ZHAO Dexi zhai lu College of Chinese medicine Changchun University of Chinese Medicine Department of Encephalopathy the Affiliated Hospital of Changchun University of Chinese Medicine College of nursing Changchun University of Chinese Medicine Research Center of Traditional Chinese Medicine the First Affiliated Hospital of Changchun University of Chinese Medicine

OBJECTIVE: To determine the molecular mechanisms underlying the neuroprotective effects of Naochuxue prescription(脑出血方,NCXP) in rats with intracerebral hemorrhage(ICH). METHODS: Sprague–Dawley rats were injected with collagenase to generate ICH models, which were then randomly divided into six groups, including control, sham, model, and three intervention groups. The intervention groups received different doses of NCXP(0.13, 0.26, and 0.52 g/kg) daily for 10 d. High-performance liquid chromatography(HPLC) was used to analyze the chemical characteristics of NCXP. The neurobehavioral outcomes of the rats were evaluated using neurological deficit scores(Zea Longa 5) and the corner turn test. Pathomorphological changes in perihematomal tissues after ICH were observed using hematoxylin and eosin staining. Immunohistochemistry(IHC) was used to detect the inflammation expression of interleukin 6(IL-6) and toll-like receptor 4(TLR4). High mobility group box-1(HMGB1), Beclin1, microtubule-associated protein 1 light chain 3 beta(LC3), and sequestosome 1(p62) were detected using real-time quantitative polymerase chain reaction and Western blotting in perihematomal tissues. RESULTS: HPLC showed that the NCXP had good stability. Rats with ICH had severe neurological function deficits compared to the control group. IHC results showed that NCXP significantly downregulated the expression of the inflammatory proteins IL-6 and TLR4. ICH rats treated with NCXP showed less neurological injury than the model group, accompanied by a significantly decreased expression of HMGB1, Beclin1, and LC3 and an increased expression of p62. CONCluSIONS: The neuroprotective effect of NCXP alleviated inflammation and autophagy possibly by downregulating HMGB1 expression. However, further research on the signaling pathways is required to verify this hypothesis.

关键词： HMGB proteins Naochuxue prescription autophagy inflammation intracerebral hemorrhage

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基于Eu3+荧光微球的丁香酚时间分辨荧光免疫层析技术的建立

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农业生物技术学报 2024年第9期32卷 2190-2202页

作者：宋妍灵翟璐李因来陈青舟廖杰金仁耀浙江工商大学海洋食品研究院杭州博岳生物技术有限公司杭州南开日新生物技术有限公司浙江华才检测技术有限公司

丁香酚具有来源广、成本低、效果好且残留期短等优点，被广泛应用于渔业麻醉，但国际上对于其安全性存在争议，认为丁香酚类化合物对啮齿动物是致癌物或潜在的致癌物。为提供一种高效、简便适用于现场快速检测水产品中丁香酚残留的方法... 详细信息

丁香酚具有来源广、成本低、效果好且残留期短等优点，被广泛应用于渔业麻醉，但国际上对于其安全性存在争议，认为丁香酚类化合物对啮齿动物是致癌物或潜在的致癌物。为提供一种高效、简便适用于现场快速检测水产品中丁香酚残留的方法，本研究建立了丁香酚时间分辨荧光免疫层析技术并制备免疫层析试纸条，利用Eu3+标记的荧光微球和抗丁香酚单克隆抗体进行标记，先后对微球活化时间、荧光标记缓冲液pH值、标记抗体量、荧光微球用量及T线和C线包被浓度等参数进行优化，并在最优条件下制备免疫层析试纸条并对其性能进行评价。结果表明，在最优条件下制成的试纸条在0.05～0.40μg/mL之间丁香酚标样浓度的对数值与T/C值具有良好的线性关系，标准曲线方程：y=-2.415lnx+2.589 4,R2=0.994，仪器检出限为0.1μg/mL，表明试纸条具有良好的灵敏度。样品添加回收率试验表明，回收率在94.16%～109.27%范围内，批内和批间变异系数分别为2.00%～7.33%和2.73%～6.97%。利用新研发试纸条对丁香酚标样检测与传统的高效液相色谱检测方法相比结果一致。稳定性试验证明，本研究制备的试纸条的有效保质期至少为1年。本研究所建立的方法适用于水产品中丁香酚残留的快速检测，同时为开发丁香酚快速检测技术提供依据。

关键词：丁香酚时间分辨荧光免疫层析试纸条

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Expression and clinical significance of high risk human papillomavirus and invasive gene in cervical carcinoma

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Asian Pacific Journal of Tropical Medicine 2017年第2期10卷 187-191页

作者： zhai lu Hua Chen Xiao-Mei Zheng Man-Ling Chen Affiliated Hospital of Hainan Medical College Haikou 570102HainanChina

Objective:To study the expression of E6 and E7 mRNA in high-risk human papillomavirus(HPV) HPV-18 and the relationship between the expression of invasive gene and cervical ***:A total of 119 patients with cervical cancer,cervical erosion and cervical HPV infection who were diagnosed in our hospital were selected and randomly divided into two groups:cervical cancer group(n= 58) and non-cancerous group(n= 61).Another 60 patients with uterine leiomyoma were selected as normal control *** of HPV18 E6,E7 mRNA expression and invasion,migration,proliferation inhibition genes,epithelial mesenchymal transition genes and proliferation related protein ***:The relative expression of E6 and E7 HPV-18 in cervical cancer group was significant higher than that in non-cancerous group and control group(mRNA)(Plusions:The expression of the detection of cervical cancer in high-risk human papilloma virus HPV-18 E6 and E7 mRNA,and the invasion,migration,proliferation inhibition gene,epithelial mesenchymal transition and proliferation related gene protein content,HPV expression rate of mR NA increased with the development of cervical ca

关键词： Human papillomavirus mRNA expression Cervical cancer

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Insight understanding into influence of binding mode of carboxylate with metal ion on ligand-centered luminescence properties in Pb-based coordination polymers

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Chinese Chemical Letters 2021年第8期32卷 2423-2426页

作者： Xusheng Gao Liduo Zhao Meijuan Ding Xiaozu Wang lu zhai Xiaoming Ren State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry&Molecular Engineering Nanjing Tech UniversityNanjing 211816China College of Chemical Engineering Nanjing Tech UniversityNanjing 211816China College of Materials Science and Engineering Nanjing Tech UniversityNanjing 211816China State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

In the crystal engineering area,it is important to clearly demonstrating the relationship of structure and certain ***,we present the study of the relationship of structure with phosphorescent nature for two new room temperature phosphorescence(RTP) coordination polymers(CPs).[Pb(FDA)(H_(2)O)](1) and [NH_(3)(CH_(3))NH_(2)(CH_(3))_(2)][Pb_(4)(FDA)_(5)](2),where H_(2) FDA is 2,5-furandicarboxylic acid,have been synthesized by solvothermal method using different solvents and Pb^(2+) sources and characterized by microanalysis,powderX-ray diffraction(PXRD),thermogravimetric(TG),IR and UV-vis *** Pb^(2+)ions adopt bicapped triangle prism coordination sphere in 1 and 2,which are connected together via FDA^(2-) ligands into bilayer structure in 1 while pillared-layer framework in *** FDA^(2-) ligands show different bridging modes in 1 and 2,leading to distinct coordination interactions between Pb^(2+) ion and FDA^(2-) ligand in both *** 1 and 2 emit ligand-centered RTP due to the heavy atom of Pb^(2+) ion,with a lifetime and quantum yield of 0.62 ms and 14.9% in 1 versus 1.69 ms and 15.7% in *** emission peak shows significant redshift(79 nm) in 2 regarding 1,which arises from their distinction of coordination interactions between Pb^(2+) ion and FDA^(2-) ligand in both CPs.

关键词： Pb-based coordination polymer Carboxylate binding mode Heavy atom effect Room temperature phosphorescence Frontier orbital analysis

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Experimental study on the apoptosis of cervical cancer Hela cells induced by juglone through c-Jun N-terminal kinase/c-Jun pathway

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Asian Pacific Journal of Tropical Medicine 2017年第6期10卷 641-644页

作者： zhai lu Hua Chen Xiao-Mei Zheng Man-Ling Chen Affiliated Hospital of Hainan Medical University Haikou 570102China

Objective: To study the regulatory effect and molecular mechanism of juglone on apoptosis of cervical cancer Hela cells. Methods: Cervical cancer Hela cells were cultured and treated with different dosages of juglone (10, 20, and 40 pmol/L, respectively) and c-Jun N-terminal kinase (JNK) inhibitor SP600125 (10, 20, and 40 mu mol/L. respectively). Then cellular proliferative activity and the expression of JNK/c-Jun pathway molecule and apoptotic molecule in the cells were detected. Results: After 6, 12. 18 and 24 h of treatment, the value for proliferative activity of cells treated with juglone was significantly lower than that of control group (plusion: Juglone can increase the expression of apoptotic molecules in mitochondrial pathway and death receptor pathway by activating JNK/c-Jun pathway, thus inducing apoptosis of cervical cancer cells.

关键词： Cervical cancer Juglone c-Jun N-terminal kinase Apoptosis Mitochondria Death receptor

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Taxonomy and phylogeny of the section Chaetoceros(Chaetocerotaceae,Bacillariophyta),with description of two new species

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Journal of Oceanology and Limnology 2024年第4期42卷 1286-1311页

作者： Xudan lu Mengyi zhai Nina luNDHOLM Yang LI Guangdong Provincial Key Laboratory of Biotechnology for Plant Development Guangzhou Key Laboratory of Subtropical Biodiversity and BiomonitoringCollege of Life ScienceSouth China Normal UniversityGuangzhou 510631China Natural History Museum of Denmark University of CopenhagenCopenhagen K 1353Denmark

Chaetoceros Ehrenberg is one of the most diverse genera of planktonic *** species in section Chaetoceros are characterized by cells and setae having numerous chloroplasts and being widely ***,the delimitations of some species are problematic because of limited morphological information in the classical *** strains of the section Chaetoceros were established,morphological features were studied using light and electron microscopy,and the hypervariable D 1-D 3 region of the nuclear ribosomal large subunit gene was sequenced to address phylogenetic *** species belonging to the section Chaetoceros were recorded,including two new species,*** *** *** *** hainanensis was characterized by straight chains,narrowly lanceolate to hexagonal apertures,sibling setae diverging in nearly right angles,stipule-shaped spines on terminal setae and arrowhead-shaped spines on intercalary *** had short straight chains,narrowly lanceolate apertures,arrowhead-shaped spines and circular poroids arranged in a grid pattern on terminal and intercalary *** phylogenetic analyses revealed six groups formed by 19 species within the section Chaetoceros,which was found to be *** subdivision of the section is still not well *** morphological characters within each group varied considerably and molecular information on more species are needed to enrich the phylogenetic profiling.

关键词： morphology large subunit ribosomal RNA encoding gene(LSU) section Chaetoceros Chaetoceros hainanensis Chaetoceros tridiscus

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Multiple isotopes reveal the driving mechanism of high NO_(3)^(-) level and key processes of nitrogen cycling in the lower reaches of Yellow River

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Journal of Environmental Sciences 2024年第4期138卷 597-606页

作者： Qianqian Zhang Huiwei Wang lu Liu Tianlun zhai Xueqing Zhang Hebei and China Geological Survey Key Laboratory of Groundwater Remediation Institute of Hydrogeology and Environmental GeologyChinese Academy of Geological SciencesHebei 050061China Geo-Environmental Monitoring Institute of Hebei Province Hebei 050011China Hebei Provincial Laboratory of Water Environmental Science Hebei 050037China Hebei Provincial Academy of Ecological Environmental Science Hebei 050037China

The continuous increase of nitrate(NO_(3)^(-))level in rivers is a hot issue in the ***,the driving mechanism of high NO_(3)^(-)level in large rivers is still lacking,which has limited the use of river water and increased the cost of water *** this study,multiple isotopes and source resolution models are applied to identify the driving mechanism of high NO_(3)^(-)level and key processes of nitrogen cycling in the lower reaches of the Yellow River(LRYR).The major sources of NO_(3)^(-)were sewage and manure(SAM)in the low-flow season and soil nitrogen(SN)and chemical fertilizer(CF)in the high-flow *** was the most key process of nitrogen cycling in the ***,in the biological removal processes,denitrification may not occur *** temporal variation of contributions of NO_(3)^(-)sources were estimated by a source resolution model in the *** proportional contributions of SAM and CF to NO_(3)^(-)in the low-flow and high-flow season were 32.5%-52.3%,44.2%-46.2%and 36.0%-40.8%,54.9%-56.9%,*** driving mechanisms of high NO_(3)^(-)level were unreasonable sewage discharge,intensity rainfall runoff,nitrification and lack of nitrate removal *** control the NO_(3)^(-)concentration,targeted measures should be implemented to improve the capacity of sewage and wastewater treatment,increase the utilization efficiency of nitrogen fertilizer and construct ecological *** study deepens the understanding of the driving mechanism of high nitrate level and provides a vital reference for nitrogen pollution control in rivers to other area of the world.

关键词： Nitrate Driving mechanism Nitrogen cycle Source apportionment Transformation Yellow River

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Local Property of Recurrence Network for Investigating Gas-Liquid Two-Phase Flow Characteristics

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Chinese Physics Letters 2013年第5期30卷 18-21页

作者： ZHANG Xin-Wang JIN Ning-De GAO Zhong-Ke zhai lu-Sheng School of Electrical Engineering and Automation Tianjin UniversityTianjin 300072

Understanding the dynamics of gas-liquid two-phase flows is a challenge in the fields of nonlinear *** first construct and analyze a recurrence network from Chen's chaotic system and find that the network local statistic is feasible to characterize chaotic dynamics associated with unstable periodic *** we construct recurrence networks from gas-liquid two-phase flow experimental signals and associate the network topological statistic with the flow pattern *** results indicate that the recurrence network could be a powerful tool for the dynamic characterization of experimental gas-liquid two-phase flows.

关键词： dynamics chaotic statistic

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