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| 1 | Controlled synthesis of porous spinel cobalt manganese oxides as efficient oxygen reduction reaction electrocatalysts显示文摘在这篇文章,我们报导一个灵巧的先锋热分解方法准备多孔的尖晶石类型钴锰氧化物(公司 x Mn 3-x 有可控制的形态学和水晶的结构的 O 4) 。在反应的盖住的代理人被发现在从立方的公司 2 MnO 4 nanorods 到四角形的公司 2 Mn 4 microspheres 和四角形的公司 2 Mn 4 立方体分别地。所有准备尖晶石材料展出灿烂的氧减小反应(ORR ) 与高稳定性一起的 electrocatalysis。特别地,立方的公司 2 有 0.9 V 的一个发作潜力的最好的表演和是的 0.72 V 的一个一半波浪潜力很关上到商业 Pt/C 的 MnO 4 nanorods 表演。同时,立方的公司 2 在场的 MnO 4 nanorods 有他们在 10,000 秒的一连续操作时间以后的 electrocatalytic 活动的可以忽略的降级的优异稳定性,它比商业 Pt/C electrocatalyst 好一些。 | Hongchao Yang Feng Hu Yejun Zhang Liyi Shi Qiangbin Wang | 2016 | Nano Research2016，9，1： | 11 |
| 2 | Organic composition of gasoline and its potential effects on air pollution in North China显示文摘When gasoline is burned to power an automotive engine, a portion of the fuel remains unburned or is partially burned and leaves the engine as hydrocarbon and oxygenated compounds. In addition, a small portion of the fuel can escape the vehicle through evaporation. Changes in alkanes, olefins and aromatics each affect emissions differently, which could complicate control strategies for air pollution. In this study, we collected 31 gasoline samples over five provinces and cities(Beijing, Tianjin, Hebei, Shandong, and Shaanxi) in North China between 2012 and 2013. The organic composition of the gasoline samples was analyzed using the gas chromatography-mass spectrometry(GC-MS) method, and the aniline compounds were analyzed by solvent extraction and the GC-MS method. The ratios of alkanes, aromatics, olefins and other organic compounds in gasoline were 40.6%, 38.1%, 12.9% and 8.4%, respectively. The aromatic and benzene exceedances were 15 and 8 based on the China's gasoline standards(III), and they accounted for 48.4% and 25.8% of all the gasoline samples, respectively. Strong carcinogen aniline compounds were detected in all 31 samples, and the content of aniline compounds in 3 samples exceeded 1%. The high proportion of aromatics and olefins in the gasoline increased the emissions of carbon monoxide(CO) and toxics, as well as the atmospheric photochemical reactivity of exhaust emissions, which could hasten the formation of secondary pollutants. Our results are helpful for redefining government strategies to control air pollution in North China and relevant for developing new refining technology throughout China. | Guiqian Tang Jie Sun Fangkun Wu Yang Sun Xiaowan Zhu Yejun Geng Yuesi Wang | 2015 | Science China Chemistry2015，58，9： | 10 |
| 3 | MoSe2 porous microspheres comprising monolayer flakes with high electrocatalytic activity显示文摘综合的一条灵巧的胶体的线路 MoSe < 潜水艇 class= “ a-plus-plus ” > 2 有由 MoSe 组成的 400600 nm 的直径的多孔的 microspheres < 潜水艇 class= “ a-plus-plus ” > 2 个 单层薄片在厚度的 0.7 nm 被报导。溶剂 trioctylamine TOA 和 oleylamine 操作维护管理被发现在 MoSe 的形成起重要作用 < 潜水艇 class= “ a-plus-plus ” > 2 microspheres, TOA 由此决定三维的 3D microspherical 形态学和操作维护管理,指导 MoSe 的形成 < 潜水艇 class= “ a-plus-plus ” > 2 个 单层薄片。柔韧的 3D MoSe <潜水艇class=“ a-plus-plus ”> 2 microspheres 展览为 electrocatalytic 氢进化反应的显著活动和耐久性她在酸,维持 77 mV 的小发作过电位并且为 5 妈/厘米的当前的密度保留 100 mV 的小过电位<啜class=“ a-plus-plus ”>在 1,000 以后的 2 骑车。另外,类似的 3D WSe < 潜水艇 class= “ a-plus-plus ” > 2 microspheres 能被使用这个方法也准备。我们期望这条灵巧的胶体的线路能进一步被扩展综合将在域例如里发现应用的另外的多孔的结构在精力存储,催化作用,并且察觉到。 | Yejun Zhang Qiufang Gong Lun Li Hongchao Yang Yanguang Li Qiangbin Wang | 2015 | Nano Research2015，8，4： | 9 |
| 4 | A new integrated energy-saving scheme in green Fiber-Wireless(FiWi) access network显示文摘Energy savings in Internet have been regarded as a significant technical issue for academic and industrial community.Particularly,access network accounts for more than 70%of the total energy consumption of Internet.As a promising access technique,Fiber-Wireless(FiWi)network not only enables the cost-effective broadband access,but also provides more opportunities for energy savings.Previous works mostly focused on the energy savings in the optical back-end of FiWi.Generally,they extended the Optical Network Unit(ONU)sleep mechanisms initially designed for Passive Optical Network(PON)to FiWi by combining with the wireless rerouting.However,most of these works left the energy savings in the wireless front-end untouched.In fact,when one or more ONUs in the network is/are sleeping,many wireless components remain idle or underutilized which cause a lot of energy waste.Motivated by this,we propose a new integrated Wireless-Optical Energy Savings(WOES)scheme for the comprehensive energy savings in FiWi.The WOES scheme consists of two interactive modules,Energy-Efficient ONU Management(EEOM)and Energy-Aware Topology Configuration(EATC).EEOM aims at the energy savings in the optical back-end by putting the low-load ONUs into sleep state.A pair of thresholds is introduced into EEOM to maintain the states of ONUs.As soon as ONUs states change,EATC will reconfigure the wireless topology by putting the idle Radio Interfaces(RIs)into standby state,thus minimizing the energy consumption of the wireless front-end.Simulation results show that the WOES scheme can reduce the energy consumption significantly with just a little performance degradation in network throughput and end-to-end delay. | LIU YeJun GUO Lei ZHANG LinCong YANG JiangZi | 2014 | Science China(Information Sciences)2014，57，6： | 7 |
| 5 | 1.82 wt.% Pt/N, P co-doped carbon overwhelms 20 wt.% Pt/C as a high-efficiency electrocatalyst for hydrogen evolution reaction显示文摘为氢进化反应的划算的 electrocatalysts (她的) 在可更新的精力的地里起一个关键作用。尽管巨大的努力被奉献给其他的材料的搜索, Pt/C 仍然是为 HER 的最有效的 electrocatalyst。不过,减少在设计 eletrocatalysts 装载磅具有意义。与装载的低磅,然而,它正在质问维持优秀催化性能。此处,新催化剂(Pt/NPC ) 被与 1.8 nm 的一条平均直径驱散磅 nanoparticles (PtNPs ) 在上准备一三维(3D ) 碳网络与 N 和 P 共同做。因为 N 和 P 掺杂物的高 electronegativity, PtNPs 一致地经由与磅和碳的高电子的亲密关系在碳网络上被驱散,负担得起 Pt/NPC 催化剂;Pt/NPC 展出了上级她的活动,归因于充电的捐赠从 N 和 P 引起到磅的磅 d 乐队的换至较低排挡。有 1.82 wt.% 装载的 ultralow 磅的 Pt/NPC 展出的结果表演优秀她的表演,它对应于一她比那大的集体活动 20.6 褶层在 20 mV 对 RHE 的过电位为广告 20% Pt/C 观察了。 | Changhong Wang Feng Hu Hongchao Yang Yejun Zhang Huan Lu Qiangbin Wang | 2017 | Nano Research2017，10，1： | 5 |
| 6 | Vibration coupling effects and machining behavior of ultrasonic vibration plate device for creep-feed grinding of Inconel 718 nickel-based superalloy显示文摘Ultrasonic vibration-assisted grinding(UVAG)is an effective and promising method for machining of hard-to-cut materials.This article proposed an ultrasonic vibration plate device enabling the longitudinal full-wave and transverse half-wave(L2T1)vibration mode for UVAG.The characteristics of two-dimensional coupled vibration in different directions were analyzed on the basis of apparent elastic method and finite element method.Furthermore,a correction factor was applied to correct the frequency error caused by the apparent elastic method.Finally,the comparative experiments between the conventional creep-feed grinding and UVAG of Inconel 718 nickel-based superalloy were carried out.The results indicate that the apparent elastic method with the correction factor is accurate for the design of plate device under the L2T1 vibration mode.Compared with the conventional creep-feed grinding,the UVAG causes the reduction of grinding force and the improvement of machined surface quality of Inconel 718 nickel-based superalloy.Furthermore,under the current experimental conditions,the optimal ultrasonic vibration amplitude is determined as 6μm,with which the minimum surface roughness is achieved. | Yang CAO Yejun ZHU Wenfeng DING Yutong QIU Lifeng WANG Jiuhua XU | 2022 | Chinese Journal of Aeronautics2022，35，2： | 2 |
| 7 | Single cell analysis reveals inhibition of angiogenesis attenuates the progression of heterotopic ossification in Mkx^(−/−)mice显示文摘Tendon heterotopic ossification(HO)is characterized by bone formation inside tendon tissue,which severely debilitates people in their daily life.Current therapies fail to promote functional tissue repair largely due to our limited understanding of HO pathogenesis.Here,we investigate the pathological mechanism and propose a potential treatment method for HO.Immunofluorescence assays showed that the Mohawk(MKX)expression level was decreased in human tendon HO tissue,coinciding with spontaneous HO and the upregulated expression of osteochondrogenic and angiogenic genes in the tendons of Mkx^(−/−)mice.Single-cell RNA sequencing analyses of wild-type and Mkx^(−/−)tendons identified three cell types and revealed the excessive activation of osteochondrogenic genes during the tenogenesis of Mkx^(−/−)tendon cells.Single-cell analysis revealed that the gene expression program of angiogenesis,which is strongly associated with bone formation,was activated in all cell types during HO.Moreover,inhibition of angiogenesis by the small-molecule inhibitor BIBF1120 attenuated bone formation and angiogenesis in the Achilles tendons of both Mkx mutant mice and a rat traumatic model of HO.These findings provide new insights into the cellular mechanisms of tendon HO and highlight the inhibition of angiogenesis with BIBF1120 as a potential treatment strategy for HO. | Junxin Lin Yuwei Yang Wenyan Zhou Chao Dai Xiao Chen Yuanhao Xie Shan Han Huanhuan Liu Yejun Hu Chenqi Tang Varitsara Bunpetch Dandan Zhang Yishan Chen Xiaohui Zou Di Chen Wanlu Liu Hongwei Ouyang | 2022 | Bone Research2022，10，4： | 1 |
| 8 | Water-stable Mn-based MOF nanosheet as robust visible-light-responsive photocatalyst in aqueous solution显示文摘Development of visible-light-responsive metal-organic frameworks(MOFs) for promising solar energy conversion has inspired continuous interest, but it still suffers from poor stability especially in aqueous solution and/or under photoirradiation due to their relatively labile coordination bonds. Herein, a new synthesized layered Mn-based MOF(Mn-TBAPy-BK) and its exfoliated twodemensional nanosheets(Mn-TBAPy-NS) are revealed to be highly stable no matter in aqueous solution with wide p H region or under visible light irradiation. As expected, the exfoliated Mn-TBAPy-NS exhibits enhanced surface area, shortened charge transfer distance, and superior charge separation with respect to the bulk one. Moreover, the as-obtained nanosheets can be employed as effective building block for nanocomposite and heterostructure assembly to further promote charge separation as well as solar hydrogen production from aqueous solution under visible light. The finding of water stable MOF nanosheet under visible light demonstrates its promising future for solar energy conversion. | Yejun Xiao Xiangyang Guo Tongtong Yang Junxue Liu Xuan Liu Yu Xiao Lifang Liu Taifeng Liu Sheng Ye Jun Jiang Fuxiang Zhang Can Li | 2020 | Science China Chemistry2020，63，12： | 1 |
| 9 | Monitoring NAD(H) and NADP(H) dynamics during organismal development with genetically encoded fluorescent biosensors显示文摘Cell metabolism plays vital roles in organismal development,but it has been much less studied than transcriptional and epigenetic control of developmental programs.The difficulty might be largely attributed to the lack of in situ metabolite assays.Genetically encoded fluorescent sensors are powerful tools for noninvasive metabolic monitoring in living cells and in vivo by highly spatiotemporal visualization.Among all living organisms,the NAD(H)and NADP(H)pools are essential for maintaining redox homeostasis and for modulating cellular metabolism.Here,we introduce NAD(H)and NADP(H)biosensors,present example assays in developing organisms,and describe promising prospects for how sensors contribute to developmental biology research. | Ting Li Yejun Zou Shuning Liu Yi Yang Zhuo Zhang Yuzheng Zhao | 2022 | Cell Regeneration2022，11，1： | 0 |
| 10 | Epitaxial growth of single-crystalline Ni_(46)Co_4Mn_(37)In_(13) thin film and investigation of its magnetoresistance显示文摘Single-crystalline thin film of Ni46Co4Mn37In13alloy grown on MgO(0 0 1) was prepared by Pulsed Laser Deposition(PLD) method. The epitaxial growth process was monitored by in situ Reflection High Energy Electron Diffraction(RHEED). Structure measurements reveal that the single-crystalline Ni46Co4Mn37In13film could be stabilized on MgO(0 0 1) as a face-centered-cubic(fcc) structure. From the evolution of RHEED,it can be deduced from the patterns that Volmer-Weber growth mechanism(3-D) dominates at the initial stage. Then,it becomes layerby-layer growth mechanism(2-D) with the increase of the film thickness. Lastly,growth mechanism converts back to 3-D when the film is thick enough. Both electrical resistance and magnetoresistance(MR) were measured at various temperatures using Physical Property Measurement System(PPMS). The electrical resistance measurement indicates that the film sample does not have martensitic transformation in the measurement temperature range. However,with the temperature increasing,the film sample exhibits a transition from metallic to semiconductorlike properties. Moreover,a small negative magnetoresistance was observed at different temperature,which can be explained by the spindependent scattering of the conduction electrons. | Chao Jing Yejun Yang Xiaolong Wang Pan Liao Dong Zheng Baojuan Kang Shixun Cao Jincang Zhang Jie Zhu Zhe Li | 2014 | Progress in Natural Science:Materials International2014，24，1： | 0 |
| 11 | A Cascade Targeted and Activatable NIR-ⅡNanoprobe for Highly Sensitive Detection of Acute Myeloid Leukemia in an Orthotopic Model显示文摘Acute myeloid leukemia(AML)remains a significant concern in modern medicine.Early diagnosis is the key to improving the therapeutic effects of AML.In the present work,a cascade-targeted and activatable NIR-Ⅱ nanoprobe(Ald&A1094@Ag_(2)S)was developed for early detection of AML in an orthotopic model.Upon intravenous injection,Ald&A1094@Ag_(2)S effectively accumulated in bone tissue due to its high affinity for alendronate(Ald)to the bone.Thereafter,the AML microenvironment allowed for the membrane-penetrating peptide TAT(cell‐penetrating peptide(CGRRRQRRKKRG))to be exposed via pH-sensitive hydrazone bond-mediated detaching of bone-targeted ligands,resulting in efficient internalization of nanoprobes in HL60 cells.Endogenous peroxynitrite(ONOO–)in HL60 cells further activated NIR-Ⅱ fluorescence of Ag_(2)S QDs via A1094 oxidation,thereby inhibiting fluorescence resonance energy transfer(FRET).Such a unique cascade-targeted and activatable strategy enables the nanoprobes to only light up the AML lesion region in the bone marrow with negligible background effects,which holds great potential for clinical applications in the future. | Xiaohu Yang Xinyi An Sisi Ling Haoying Huang Yejun Zhang Guangcun Chen Chunyan Li &Qiangbin Wang | 2021 | CCS Chemistry2021，3，3： | 0 |
| 12 | AgAuSe quantum dots with absolute photoluminescence quantum yield of 87.2%:The effect of capping ligand chain length显示文摘Surface ligands of colloidal quantum dots(QDs)have a profound influence on their surface states,which has been verified in the studies of the effect of ligand head groups on the photoluminescence(PL)properties of QDs.However,the investigation of the ligand chain length is limited.Here,we systematically explored the effect of chain length on the Ag_(2)Se QDs by selecting three ligands,1-octanethiol(OTT),1-dodecanethiol(DDT),and 1-hexadecanethiol(HDT),with diverse chain lengths.We found that the PL intensity of Ag_(2)Se QDs increased with the decrease of the ligand chain length due to the enhanced passivation of surface defects emerging from the robust QD-ligand interface binding affinity and the weaker hydrophobic chain–chain interaction.Subsequently,AgAuSe QDs terminated with OTT were obtained by alloying parent OTT-Ag_(2)Se QDs with Au precursor with a record absolute PL quantum yield(PLQY)of 87.2%at 970 nm,facilitating ultrasensitive in vivo angiography imaging in a nude mouse model.We expect that our finding of the important role of the ligand chain length on the optical properties of QDs will be suggestive to the design and synthesis of high-quality QDs,and also look forward to the clinical applications of the ultra-bright AgAuSe QDs. | Ziqiang Sun Cheng Liu Hongchao Yang Xiaohu Yang Yejun Zhang Hongzhen Lin Youyong Li Qiangbin Wang | 2022 | Nano Research2022，15，9： | 0 |
| 13 | Polydopamine directed MnO@C microstructures as electrode for lithium ion battery显示文摘In this work,a facile process was reported to fabricate amorphous carbon-coated MnO micropeanuts(MPs)with 1.8μm in length and 1.0μm in width using hydrothermal reaction followed by heat treatment in the oxygen-free environment.With Mn Cl_2 and KMnO_4 dissolved in the mixture of ethylene glycol and water,MnCO_3 MP precursors were obtained via the hydrothermal reaction with dopamine as surfactant.Then MnCO_3 MP was annealed at 600°C in the N_2 atmosphere and was transformed into MnO MP,and simultaneously the formed polydopamine during the hydrothermal reaction was carbonized to produce amorphous carbon-coating on the MnO MP surface.In contrast,MnCO_3 nanoparticle(NP)precursor was formed without the addition of dopamine and MnO NP agglomerates were prepared after pyrolysis.The carbonization of polydopamine during thermolysis improves the electrical conductivity and thermal stability of the MnO MP and thus its electrochemical performance as electrode materials for lithium ion battery.Hopefully,this facile strategy for fabricating and designing carbon-coated materials would inspire more novel nanostructures and applications thereof. | Delu Li Yejun Zhang Lun Li Feng Hu Hongchao Yang Changhong Wang Qiangbin Wang | 2016 | Science China Chemistry2016，59，1： | 0 |
| 14 | The activity of Zn precursors determines the cation exchange reaction kinetics with Ag_(2)S:Zn-doped Ag_(2)S or Ag_(2)S@ZnS QDs显示文摘Cation exchange(CE)has been emerged as a promising post-synthesis strategy of colloidal nanocrystals.However,it is unclear how the cation precursor affects the CE process and the final colloidal nanocrystals.Herein,we utilized two Zn-B Lewis acidbase adduct complexes(B=oleylamine(OAM)and methanol(MeOH))as Zn precursors for CE with Ag_(2)S quantum dots(QDs).Our study revealed that the steric hindrance and complexing capabilities of Zn precursor significantly affect the CE kinetics.As a result,the Zn-doped Ag_(2)S(Zn:Ag_(2)S)and Ag_(2)S@ZnS core–shell QDs were successfully obtained with enormous enhancement of their photoluminescence(PL)intensities.Theoretical simulation showed that the Zn-OAM with higher desolvation energy and spatial hindrance tended to form doped Zn:Ag_(2)S QDs due to the inefficient cation exchange.Whereas the Zn-MeOH with lower exchange barrier promoted the conversion of Ag-S to Zn-S,thus forming Ag_(2)S@ZnS core–shell QDs.We anticipate that this finding will enrich the regulatory approaches of post-synthesis of colloidal nanocrystals with desirable properties. | Zhiyong Tang Hongchao Yang Ziqiang Sun Yejun Zhang Guangcun Chen Qiangbin Wang | 2023 | Nano Research2023，16，10： | 0 |
| 15 | In vivo spatial-spectral photoacoustic microscopy enabled by optical evanescent wave sensing显示文摘In addition to offering morphological visualizations via capture of the spatial distributions of optical absorption,photoacoustic imaging technology can reveal abundant physical information about biological particles,including their orientation,density,and viscoelasticity,through analysis of the pressure transients in the spectral domain.However,the low-amplitude wideband photoacoustic signals of intrinsic microscopic optically-absorbing objects under the action of confined photoacoustic excitation power continue to hinder simultaneous photoacoustic structural imaging and spectroscopic analysis of the nonfluorescent chromophores in living biological tissues because of the inadequate responses to photoacoustic impulses observed in most photoacoustic imaging setups that include piezoelectric transducers.Building upon a recently-developed optical evanescent wave sensor that can respond to ultrasound with high sensitivity over a broad frequency range,we propose in vivo spatial-spectral photoacoustic microscopy for recovery of structural imaging in three dimensions and characterization of anatomical features in the acoustic frequency domain.Label-free photoacoustic images of a living zebrafish are acquired in which spectroscopically-resolved differentiation of the microarchitecture is accessed,along with isometric micrometer-scale volumetric visualizations.The proposed imaging technology could potentially provide more comprehensive evaluations of the physiopathological status of living small animals. | Fan Yang Yushu Dong Changjun Min Yejun He Siwei Zhu Hao Liu Wei Song Xiaocong Yuan | 2023 | Medicine in Novel Technology and Devices2023，，2： | 0 |
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