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| 1 | Water droplet impact on superhydrophobic surfaces with microstructures and hierarchical roughness显示文摘Quantitative correlation between the critical impact velocity of droplet and geometry of superhydrophobic surfaces with microstructures is systematically studied.Experimental data shows that the critical impact velocity induced wetting transition of droplet on the superhydrophobic surfaces is strongly determined by the perimeter of single micropillar,the space between the repeat pillars and the advancing contact angle of the sidewall of the micropillars.The proposed model agrees well with the experimental results,and clarifies that the underlying mechanism which is responsible for the superhydrophobic surface with hierarchical roughness could sustain a higher liquid pressure than the surfaces with microstructures. | HAO PengFei LV CunJing NIU FengLei YU Yu | 2014 | Science China(Physics,Mechanics & Astronomy)2014,57,7: | 11 |
| 2 | Evaporating behaviors of water droplet on superhydrophobic surface显示文摘We investigated the dynamic evaporating behaviors of water droplet on superhydrophobic surfaces with micropillars.Our experimental data showed that receding contact angles of the water droplet increased with the decreasing of the scale of the micropillars during evaporation,even though the solid area fractions of the microstructured substrates remained constant.We also experimentally found that the critical contact diameters of the transition between the Cassie-Baxter and Wenzel states are affected not only by the geometrical parameters of the microstructures,but also by the initial volume of the water droplet.The measured critical pressure is consistent with the theoretical model,which validated the pressure-induced impalement mechanism for the wetting state transition. | HAO PengFei LV CunJing HE Feng | 2012 | Science China(Physics,Mechanics & Astronomy)2012,55,12: | 2 |
| 3 | Suspended penetration wetting state of droplets on microstructured surfaces显示文摘When a water droplet on a micropillar-structured hydrophobic surface is submitted to gradually increased pressure, the CassieBaxter wetting state transforms into the Wenzel wetting state once the pressure exceeds a critical value. It has been assumed that the reverse transition(Wenzel-to-Cassie-Baxter wetting state) cannot happen spontaneously after the pressure has been removed.In this paper, we report a new wetting-state transition. When external pressure is exerted on a droplet in the Cassie-Baxter wetting state on textured surfaces with high micropillars to trigger the breakdown of this wetting state, the droplet penetrates the micropillars but does not touch the base of the surface to trigger the occurrence of the Wenzel wetting state. We have named this state the suspended penetration wetting state. Spontaneous recovery from the suspended penetration wetting state to the initial Cassie-Baxter wetting state is achieved when the pressure is removed. Based on the experimental results, we built models to establish the penetration depth that the suspended penetration wetting state could achieve and to understand the energy barrier that influences the equilibrium position of the liquid surface. These results deepen our understanding of wetting states on rough surfaces subjected to external disturbances and shed new light on the design of superhydrophobic materials with a robust wetting stability. | Jing Lou SongLin Shi Chen Ma CunJing Lv QuanShui Zheng | 2021 | Science China(Physics,Mechanics & Astronomy)2021,64,4: | 2 |
| 4 | Wetting of graphene oxide: A molecular dynamics study显示文摘 | Wei Ning Lv Cunjing Xu Zhiping | 2014 | Langmuir2014,30,12: | 1 |
| 5 | Numerical simulation of roadway surrounding rock deformation and destruction显示文摘 | ZENG Fanhui ZOU Cunjing | 2013 | Journal of Liaoning Technical University(Natural Science)2013,32,12: | 1 |
| 6 | Sliding of Water Droplets on Microstructured Hydrophobic Sur-faces显示文摘 | Cunjing Lv Quanshui Zheng | | 0,,26: | 1 |
| 7 | Socio-economic preconditions for developing agrotourism in Zagreb county 显示文摘 | Ramona Franic i Lovorka Cunj | 2007 | Agronomski Glasnik2007,,5: | 1 |
| 8 | A New Method of Hardening Inner Wall of Long Pipe显示文摘A new laser inner wall hardening method for long pipe mas introduced. The system combines laser surface hardening with robot moving in pipeline. Some craft experiments have been done with this system and optimum parameters of laser hardening have been found. | 王扬 Deng Zhongquan Qu Cunjing | 2001 | High Technology Letters2001,7,2: | 0 |
| 9 | Albumin-assembled copper-bismuth bimetallic sulfide bioactive nanosphere as an amplifier of oxidative stress for enhanced radio-chemodynamic combination therapy显示文摘The tumor microenvironment with overexpressed hydrogen peroxide(H_(2)O_(2))and reinforced antioxidative system(glutathione,GSH)becomes a double-edged sword for the accessibility of nano-therapy.Since reactive oxygen species(ROS)are easily quenched by the developed antioxidative network,ROS-based treatments such as chemodynamic therapy(CDT)and radiotherapy(RT)for killing cancer cells are severely attenuated.To overcome such limitations,a bioactive nanosphere system is developed to regulate intracellular oxidative stress for enhanced radio-chemodynamic combination therapy by using bovine serum albumin(BSA)based bioactive nanospheres that are BSA assembled with in situ generated copper-bismuth sulfide nanodots and diallyl trisulfide(DATS).The copper-bismuth sulfide nanodots react with H_(2)O_(2)to produce·OH and release Cu^(2+).Then,the Cu^(2+)further depletes GSH to generate Cu^(+)for more·OH generation in the way of Fenton-like reaction.Such a cascade reaction can initiate·OH generation and GSH consumption to realize CDT.The elevation of ROS triggered by the DATS from BBCD nanospheres further augments the breaking of redox balance for the increased oxidative stress in 4T1 cells.With the sensitization of increased oxidative stress and high Z element Bi,an enhanced radio-chemodynamic combination therapy is achieved.The current work provides an enhanced radio-chemodynamic combination treatment for the majority of solid tumors by using the co-assembled bioactive nanospheres as an amplifier of oxidative stress. | Weiyong Tao Zhan Tuo Feige Wu Ketao Mu Cunjing Xu Yuxiao Shi Zeyu Sun Yifan Wang Yan Li Zhenyu Zhong Lei Zhou Jianglin Wang Jie Liu Yingying Du Shengmin Zhang | 2022 | Regenerative Biomaterials2022,9,1: | 0 |
| 10 | Reinterpretation of metamorphic age of the Hengshan Complex,North China Craton显示文摘Hengshan granulite facies terrane consists of tonalite-trondhjemite-granodiorite(TTG)gneisses and minor high-pressure mafic granulite blocks.LA-ICP-MS zircon dating for two TTG gneiss samples indicates metamorphic ages of 1916.7±9.9 Ma and1850–1930 Ma,and magmatic protolith age of ca.2.5 Ga,with similar HREE-rich patterns.Phase equilibria modelling in ZrO2-bearing system reveals that zircon abundance varies inversely with melt abundance in suprasolidus metamorphism,zircon growth occurs with melt crystallization during cooling,and thus,the newly grown zircon can only record the age of retrograde metamorphism.Consequently,we suggest that the Hengshan granulite facies terrane experienced slowly uplifting and cooling during 1.85–1.93 Ga in an extensional setting under middle-crust,while the collision orogeny corresponding to peak stage of high-pressure granulite may have happened much earlier. | ZHANG YingHui WEI CunJing TIAN Wei ZHOU XiWen | 2013 | Chinese Science Bulletin2013,58,34: | 0 |
| 11 | 3D micropattern force triggers YAP nuclear entry by transport across nuclear pores and modulates stem cells paracrine显示文摘Biophysical cues of the cellular microenvironment tremendously influence cell behavior by mechanotransduction.However,it is still unclear how cells sense and transduce the mechanical signals from 3D geometry to regulate cell function.Here,the mechanotransduction of human mesenchymal stem cells(MSCs)triggered by 3D micropatterns and its effect on the paracrine of MSCs are systematically investigated.Our findings show that 3D micropattern force could influence the spatial reorganization of the cytoskeleton,leading to different local forces which mediate nucleus alteration such as orientation,morphology,expression of Lamin A/C and chromatin condensation.Specifically,in the triangular prism and cuboid micropatterns,the ordered F-actin fibers are distributed over and fully transmit compressive forces to the nucleus,which results in nuclear flattening and stretching of nuclear pores,thus enhancing the nuclear import of YES-associated protein(YAP).Furthermore,the activation of YAP significantly enhances the paracrine of MSCs and upregulates the secretion of angiogenic growth factors.In contrast,the fewer compressive forces on the nucleus in cylinder and cube micropatterns cause less YAP entering the nucleus.The skin repair experiment provides the first in vivo evidence that enhanced MSCs paracrine by 3D geometry significantly promotes tissue regeneration.The current study contributes to understanding the in-depth mechanisms of mechanical signals affecting cell function and provides inspiration for innovative design of biomaterials. | Yan Li Zhenyu Zhong Cunjing Xu Xiaodan Wu Jiaqi Li Weiyong Tao Jianglin Wang Yingying Du Shengmin Zhang | 2023 | National Science Review2023,10,8: | 0 |
| 12 | Wetting property of smooth and textured hydrophobic surfaces under condensation condition显示文摘Static and dynamic wetting behaviors of sessile droplet on smooth,microstructured and micro/nanostructured surface under condensation condition are systematically studied.In contrast to the conventional droplet wetting on such natural materials by dropping,we demonstrate here that when dropwise condensation occurs,the sessile droplet will transit from the Cassie-Baxter wetting state to the Wenzel wetting state or partial Cassie-Baxter wetting state on the microstructured surface or the micro/nanostructured surface,which leads to a strong adhesion between the droplet and the substrate.In contrast,the apparent contact angle and the sliding angle on the smooth surface changes a little before and after the condensation because of small roughness.Theoretical analysis shows that the roughness factor controls the adhesion force of the droplet during condensation,and a theoretical model is constructed which will be helpful for us to understand the relationship between the adhesion force and the geometry of the surface. | HAO PengFei LV CunJing YAO ZhaoHui NIU FengLei | 2014 | Science China(Physics,Mechanics & Astronomy)2014,57,11: | 0 |
| 13 | Writing with a nano-grooved pin显示文摘As a basic technology, dispensing liquid into small droplets is widely used in many nowadays technologies, such as 3D printing [I-4], biological/chemical patterning [5-7], and drug discovery [8,9]. Traditional transfer methods by pipette or pin, which may date to 4000 years ago [10], are simple and cheap to generate droplets bigger than μ100 pm [11] for most materials. | DONG HuaLai YANG Xing LV CunJing WANG Jin ZHENG QuanShui | 2019 | Science China(Technological Sciences)2019,62,9: | 0 |