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3篇 您的检索式:作者名="Yonghui Long"
    题名 作者 年代 出处 被引量
1Vertically standing PtSe_2 film: a saturable absorber for a passively mode-locked Nd:LuVO_4 laser显示文摘The novel vertically standing Pt Se2 film on transparent quartz was prepared by selenization of platinum film deposited by the magnetron sputtering method, and an Nd:Lu VO4 passively mode-locked solid-state laser was realized by using the fabricated Pt Se2 film as a saturable absorber. The X-ray diffraction pattern and Raman spectrum of the film indicate its good crystallinity with a layered structure. The thickness of Pt Se2 film is measured to be 24 nm according to the cross-section height profile of the atomic force microscope image. Highresolution transmission electron microscopy images clearly demonstrate its vertically standing structure with an interlayer distance of 0.54 nm along the c-axis direction. The modulation depth(ΔT) and saturation fluence(Φs)of Pt Se2 film are measured to be 12.6% and 17.1 μJ∕cm2, respectively. The obtained mode-locked laser spectrum has a central wavelength of 1066.573 nm, with a 3 d B bandwidth of 0.106 nm. The transform limited pulse width of the mode-locked laser was calculated to be 15.8 ps. A maximum average output power of 180 m W with a working repetition rate of 61.3 MHz is obtained. To the best of our knowledge, this is the first report of the generation of ultrafast mode-locked laser pulses by using layered Pt Se2 as a saturable absorber.LILI TAO XIAOWEN HUANG JUNSHAN HE YAJUN LOU LONGHUI ZENG YONGHUI LI HUI LONG JINGBO LI LING ZHANG YUEN HONG TSANG 2018Photonics Research2018,6,7:8
2A putative ABC transporter is involved in negative regulation of biofilm forma- tion by Listeria monocytogenes 显示文摘Xinna Zhu Fei Long Yonghui Chen 2008Appl Environ Microbiol2008,74,24:1
3Transport and inhibition mechanism for VMAT2-mediated synaptic vesicle loading of monoamines显示文摘Monoamine neurotransmitters such as serotonin and dopamine are loaded by vesicular monoamine transporter 2(VMAT2)into synaptic vesicles for storage and subsequent release in neurons.Impaired VMAT2 function underlies various neuropsychiatric diseases.VMAT2 inhibitors reserpine and tetrabenazine are used to treat hypertension,movement disorders associated with Huntington’s Disease and Tardive Dyskinesia.Despite its physiological and pharmacological significance,the structural basis underlying VMAT2 substrate recognition and its inhibition by various inhibitors remains unknown.Here we present cryo-EM structures of human apo VMAT2 in addition to states bound to serotonin,tetrabenazine,and reserpine.These structures collectively capture three states,namely the lumen-facing,occluded,and cytosol-facing conformations.Notably,tetrabenazine induces a substantial rearrangement of TM2 and TM7,extending beyond the typical rocker-switch movement.These functionally dynamic snapshots,complemented by biochemical analysis,unveil the essential components responsible for ligand recognition,elucidate the proton-driven exchange cycle,and provide a framework to design improved pharmaceutics targeting VMAT2.Yuwei Wang Pei Zhang Yulin Chao Zhini Zhu Chuanhui Yang Zixuan Zhou Yaohui Li Yonghui Long Yuehua Liu Dianfan Li Sheng Wang Qianhui Qu 2024Cell Research2024,34,1:0
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