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| 1 | Observation of topological valley transport of sound in sonic crystals显示文摘Subject Code:A04 Supported by the National Natural Science Foundation of China,a research group from Wuhan University,led by Profs.Liu Zhengyou(刘正猷)and Qiu Chunyin(邱春印),demonstrated the topological valley transport of sound in sonic crystals,which was published in Nature Physics(2017,13:369—374). | Liu Zhengyou (刘正猷) Qiu Chunyin (邱春印) | 2017 | Science Foundation in China2017，25，2： | 7 |
| 2 | Structural and biochemical mechanism for increased infectivity and immune evasion of Omicron BA.2 variant compared to BA.1 and their possible mouse origins显示文摘The Omicron BA.2 variant has become a dominant infective strain worldwide.Receptor binding studies show that the Omicron BA.2 spike trimer exhibits 11-fold and 2-fold higher potency in binding to human ACE2 than the spike trimer from the wildtype(WT)and Omicron BA.1 strains.The structure of the BA.2 spike trimer complexed with human ACE2 reveals that all three receptor-binding domains(RBDs)in the spike trimer are in open conformation,ready for ACE2 binding,thus providing a basis for the increased infectivity of the BA.2 strain.JMB2002,a therapeutic antibody that was shown to efficiently inhibit Omicron BA.1,also shows potent neutralization activities against Omicron BA.2.In addition,both BA.1 and BA.2 spike trimers are able to bind to mouse ACE2 with high potency.In contrast,the WT spike trimer binds well to cat ACE2 but not to mouse ACE2.The structures of both BA.1 and BA.2 spike trimer bound to mouse ACE2 reveal the basis for their high affinity interactions.Together,these results suggest a possible evolution pathway for Omicron BA.1 and BA.2 variants via a human-cat-mouse-human circle,which could have important implications in establishing an effective strategy for combating SARS-CoV-2 viral infections. | Youwei Xu Canrong Wu Xiaodan Cao Chunyin Gu Heng Liu Meriting Jiang Xiaoxi Wang Qingning Yuan Kai Wu Jia Liu Deyi Wang Xianqing He Xueping Wang Su-Jun Deng H.Eric Xu Wanchao Yin | 2022 | Cell Research2022，32，7： | 6 |
| 3 | An experimental study of phase transformations in olivine under pressure and temperature conditions corresponding to the mantle transition zone显示文摘High-pressure polymorphs of olivine (wadsleyite and ringwoodite) are major minerals in the mantle transition zone (MTZ).Phase transformations in olivine are important for a series of geodynamic problems such as the mineralogical and evolutionary history of the mantle,mantle convection patterns,and deep focus earthquakes in subduction zones.In this study,we examine phase transformations in olivine with two compositions,namely Mg 2 SiO 4 (Fo 100) and (Mg 0.9 Fe 0.1) 2 SiO 4 (Fo 90),at pressures between 14.1 and 20 GPa and a constant temperature of 1400°C,using the newly installed multi-anvil system at the Laboratory for Studies of the Earth's Deep Interior (SEDI),China University of Geosciences (Wuhan).At 14.1 GPa,Fo 90 transformed completely into the wadsleyite structure (β),while Fo 100 remained as olivine (α).Between 14.8 and 15.6 GPa,both Fo 100 and Fo 90 transformed into the wadsleyite structure.Wadsleyite crystals were identified by two characteristic Raman peaks between 722 and 723 and 917 and 919 cm 1.They exhibit a bimodal grain size distribution:large-crystals with average grain sizes greater than 100 μm and microcrystals less than 10 μm.The population of microcrystals increased with pressure,apparently due to the increase in over-pressure (the difference between the experimental pressure condition and the equilibrium transformation pressure at 1400°C),which promotes nucleation and retards grain growth.All run charges contained large numbers of wadsleyite microcrystals,because of the low activation energy of the nucleation process.The experimentally observed microstructure may shed light on the morphology of wadsleyite observed in shocked meteorites.At 19.5 GPa,wadsleyite coexisted with ringwoodite (γ) in Fo 100,but was absent in Fo 90.At 20 GPa,both samples transformed completely into ringwoodite,which was characterized by the 798 and 840 cm 1 Raman lines.Ringwoodite crystals are euhedral grains (average grain size 10-20 μm),with well-developed triple junctions.The complex upper mantle structure in eastern China determined from seismological studies cannot be explained by the simple transformation sequence of the olivine system alone.Phase transformations in other pyroxene-normative components (including pyroxenes and garnets) and the interaction of these components with olivine may be responsible for the complex structure.High-pressure and high-temperature experimental studies on complex systems (e.g.olivine-pyroxene),combined with data from geophysical exploration,may help in establishing a more realistic geological-petrological model for eastern China and further our understanding of the possible physical mechanisms that are responsible for the complex structure.Such studies will have profound implications for understanding the dynamic processes in the deep Earth interior. | WU Yao WANG YanBin ZHANG YanFei JIN ZhenMin WANG Chao ZHOU ChunYin | 2012 | Chinese Science Bulletin2012，57，8： | 5 |
| 4 | Symmetry-enforced three-dimensional Dirac phononic crystals显示文摘Dirac semimetals,the materials featuring fourfold degenerate Dirac points,are critical states of topologically distinct phases.Such gapless topological states have been accomplished by a band-inversion mechanism,in which the Dirac points can be annihilated pairwise by perturbations without changing the symmetry of the system.Here,we report an experimental observation of Dirac points that are enforced completely by the crystal symmetry using a nonsymmorphic three-dimensional phononic crystal.Intriguingly,our Dirac phononic crystal hosts four spiral topological surface states,in which the surface states of opposite helicities intersect gaplessly along certain momentum lines,as confirmed by additional surface measurements.The novel Dirac system may release new opportunities for studying elusive(pseudo)and offer a unique prototype platform for acoustic applications. | Xiangxi Cai Liping Ye Chunyin Qiu Meng Xiao Rui Yu Manzhu Ke Zhengyou Liu | 2020 | Light(Science & Applications)2020，9，1： | 2 |
| 5 | Assembly-enhanced triplet-triplet annihilation upconversion in the aggregation formed by Schiff-base Pt(Ⅱ) complex grafting-permethyl-β-CD and 9,10-diphenylanthracence dimer显示文摘Water-soluble triplet sensitizer with permethyl-β-cyclodextrin(PMCD)grafting on a Schiff-base Pt(II)complex(Pt-2),in which PMCD unit serves as a host for binding the acceptors and the Schiff-base Pt(II)complex serves as a triplet sensitizer,was synthesized to investigate the effect of supramolecular complexation and assembly on the triplet-triplet annihilation upconversion emission in water.9,10-Diphenylanthracence(DPA)carboxylate(A-1)and its dimer(A-2)in which two DPA carboxylate were covalently linked with an alkyl chain were synthesized as triplet acceptors which also play a role of guest molecules for PMCD.A-1 and A-2 showed high affinity with PMCD,and A-2 can readily aggregate in water and form micron sized assemblies due to the hydrophobic effect andπ-πstacking of anthracene core in A-2.The efficiency of TTA-UC was demonstrated to be enhanced by a synergistic effect of host-guest complexation of Pt-2 with A-2 and the self-aggregation of the acceptor A-2,which facilitated the energy transfer and energy fusion among donor and acceptor. | Hongxia Lai Ting Zhao Yurong Deng Chunyin Fan Wanhua Wu Cheng Yang | 2019 | Chinese Chemical Letters2019，30，11： | 1 |
| 6 | Mechanical properties and morphology of biodegradable poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends compatibilized by transesterification显示文摘 | Shan Lin Weinan Guo Chunyin Chen Jianli Ma Biaobing Wang | 2011 | Materials and Design2011，，： | 1 |
| 7 | HEURISTIC Al gorithms for the dynamie taxipooling problem based on Intelligent transportation system technologies显示文摘 | TAO Chiehun CHEN Chunyin | 2001 | Transportation Research Part B2001，137，： | 1 |
| 8 | Negative-refraction imaging with two-dimensional phononic crystals显示文摘 | KE Manzhu LIU Zhengyou QIU Chunyin | 2005 | Physical Review B2005，72，06： | 1 |
| 9 | Metamaterial with simultaneously negative bulk modulus and mass density显示文摘 | DING Yiqun LIU Zhengyou QIU Chunyin | 2007 | Physical Review Letters2007，99，09： | 1 |
| 10 | Metamaterial with simultaneously negative bulk mod- ules and mass density显示文摘 | D1NG Yiqun LIU Zhengyou QIU Chunyin | 2007 | Physical Review Letters2007，99，09： | 1 |
| 11 | Metamateri- al with simultaneously negative bulk modules and mass density 显示文摘 | Ding Yiqun Liu Zhengyou Qiu Chunyin | 2007 | Physical Review Letters2007，99，09： | 1 |
| 12 | Mechanical Properties and Morphology of Biodegradable Poly(lactic acid)/Poly(butylenes adipate-co-terephthalate)Blends Compatibilized by Transesterification显示文摘 | Lin Shan Guo Weinan Chen Chunyin | 2012 | Materials and Design2012，36，： | 1 |
| 13 | Oleanolic acid and ursolic acid induce apoptosis in four human liver cancer cell lines显示文摘 | YAN Shenglei HUANG Chunyin WU Shwutzy | 2010 | Toxicology in Vitro2010，24，3： | 1 |
| 14 | Oleanolic acid and ursolic acid induce apoptosis in four human liver cancer cell lines显示文摘 | YAN Shenglei HUANG Chunyin WU S T | 2010 | Toxicology in Vitro2010，24，3： | 1 |
| 15 | Honeycomb-patterned hybrid films and their template applications via a tunable amphiphilie block polymer/inorganic precursor system显示文摘 | Li Lei Zhong Yawen Ma Chunyin | 2009 | Chemistry of Materials2009，21，20： | 1 |
| 16 | Mechanicalproperties and morphology of biodegradable poly(lacticacid)/poly(butylene adipate-co-terephthalate)blendscompatibilized by transesterification显示文摘 | Shan Lin Weinan Guo Chunyin Chen | 2012 | Materials&Design2012，4，36： | 1 |
| 17 | The layer multiple-scattering method for calculating transmission coefficients of 2D phononic crystals显示文摘 | Qiu Chunyin Liu Zhengyou Mei Jun Ke Manzu | 2005 | Solid State Commun2005，134，： | 1 |
| 18 | Facile Synthesis of α-Haloketones by Aerobic Oxidation of Olefins Using KX as Nonhazardous Halogen Source显示文摘Summary of main observation and conclusion An operationally simple and safe synthesis of a-haloketones using KBr and KCI as nonhazardous halogen sources is reported.It involves an iron-catalysed reaction of alkenes with KBr/KCl using O2 as terminal oxidant under the irradiation of visible-light.This strategy avoids the risks associated with handling halo-contained electrophiles(Cl2,Br2/NCS,NBS).The process is tolerant to several functional groups,and extended to a range of substituted styrenes in up to 89%yield.A radical reaction pathway is proposed based on control experiments and spectroscopy studies. | Zhibin Luo Yunge Meng Xinchi Gong Jie Wu Yulan Zhang Long-Wu Ye Chunyin Zhu | 2020 | Chinese Journal of Chemistry2020，38，2： | 1 |
| 19 | Fabrication of a high hydrophobic PVDF membrane via nonsolvent induced phase separation 显示文摘 | Kuo Chunyin Lin Huini Tsai Huian | 2008 | Desalination2008，233，123： | 1 |
| 20 | Determination of Trace Aniline in Water by a Spectrophotometric Method After Preconcentration on an Organic Solventsoluble Membrane Filter显示文摘 | Gu Xuexin Li Chunyin Qi Xin | 1997 | Anal Lett1997，30，2： | 1 |
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