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Tunable quantum dots in monolithic Fabry-Perot microcavities for high-performance single-photon sources

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Light(Science & Applications) 2024年第2期13卷 325-332页

作者： Jiawei Yang Yan chen Zhixuan Rao Ziyang Zheng Changkun Song yujie chen Kaili Xiong Pingxing chen Chaofan Zhang Wei Wu Ying Yu Siyuan Yu State Key Laboratory of Optoelectronic Materials and Technologies School of Electronics and Information TechnologySun Yat-Sen UniversityGuangzhou 510006China Institute for Quantum Science and Technology College of ScienceNational University of Defense TechnologyChangsha 410073China College of Advanced Interdisciplinary Studies National University of Defense TechnologyChangsha 410073China Hunan Key Laboratory of Quantum Information Mechanism and Technology National University of Defense TechnologyChangsha 410073 HunanChina Hefei National Laboratory Hefei 230088China

Cavity-enhanced single quantum dots(QDs)are the main approach towards ultra-high-performance solid-state quantum light sources for scalable photonic quantum ***,harnessing the Purcell effect requires precise spectral and spatial alignment of the QDs’emission with the cavity mode,which is challenging for most *** we have successfully integrated miniaturized Fabry-Perot microcavities with a piezoelectric actuator,and demonstrated a bright single-photon source derived from a deterministically coupled QD within this *** the cavity-membrane structures,we have achieved large spectral tunability via strain *** resonance,a high Purcell factor of~9 is *** source delivers single photons with simultaneous high extraction efficiency of 0.58,high purity of 0.956(2)and high indistinguishability of 0.922(4).Together with its compact footprint,our scheme facilitates the scalable integration of indistinguishable quantum light sources on-chip,therefore removing a major barrier to the development of solid-state quantum information platforms based on QDs.

关键词： quantum removing purity

Electrostatic and hydrophobic interaction cooperative nanochaperone regulates protein folding

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Aggregate 2024年第1期5卷 419-426页

作者： Xiaohui Wu Fei Deng yujie chen Mengchen Xu Feihe Ma Linqi Shi Key Laboratory of Functional Polymer Materials of Ministry of Education State Key Laboratory of Medicinal Chemical BiologyInstitute of Polymer Chemistry and College of ChemistryNankai UniversityTianjinP.R.China School of Materials Science and Engineering and State Key Laboratory of Separation Membranes and Membrane Processes Tiangong UniversityTianjinP.R.China

Natural molecular chaperones utilize spatially ordered multiple molecular forces to effectively regulate protein ***,synthesis of such molecules is a big *** concept of“aggregate science”provides insights to construct chemical entities(aggregates)beyond molecular levels to mimic both the structure and function of natural *** by this concept,herein we fabricate a novel multi-interaction(i.e.,electrostatic and hydrophobic interaction)cooperative nanochaperone(multi-co-nChap)to regulating protein *** multi-co-nChap is fabricated by rationally introducing electrostatic interactions to the surface(corona)and confined hydrophobic microdomains(shell)of traditional single-hydrophobic interaction *** demonstrate that the corona electrostatic attraction facilitates the diffusion of clients into the hydrophobic microdomains,while the shell electrostatic interaction balances the capture and release of *** finely synergizing corona electrostatic attraction with shell electrostatic repulsion and hydrophobic interaction,the optimized multi-co-nChap effectively facilitated de novo folding of nascent ***,the synergy between corona electrostatic attraction,shell electrostatic attraction and shell hydrophobic interaction significantly enhanced the capability of multi-co-nChap to protect native proteins from denaturation at harsh *** work provides important insights for understanding and design of nanochaperone,which is a kind of ordered aggregate with chaperone-like activity that beyond the level of single molecule.

关键词： chaperone-like activity cooperative effect nanochaperones ordered aggregates protein folding

Total flavonoids of Astragalus membranaceus protect against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced neurotoxicity in mice by inhibiting ferroptosis through SLC7A11/GPX-4 signaling pathway

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Food Science and Human Wellness 2024年第1期13卷 414-420页

作者： Zitian Gao Gaorui Wang yujie chen Wuke Yuan Jun Cai Aiping Feng Jie Fang Qi Xu Xiaojun Wu School of Public Health Shanghai University of Traditional Chinese MedicineShanghai 201203China Shanghai Key Laboratory of Compound Chinese Medicines The Ministry of Education(MOE)Key Laboratory for Standardization of Chinese MedicineInstitute of Chinese Materia MedicaShanghai University of Traditional Chinese MedicineShanghai 201203China Longhua Hospital affiliated to Shanghai University of Traditional Chinese Medicine Shanghai University of Traditional Chinese MedicineShanghai 201203China

Parkinson’s disease(PD)is a common neurodegenerative disorder with no *** membranaceus is used in Chinese culture as a food supplement to boost *** present study aimed to explore the neuroprotective effects of total flavonoids extracted from ***(TFA)and their protective *** offered neuroprotection against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine(MPTP)in the mouse model of Parkinsonism,by improving behavior performance in the gait analysis and pole test,and inhibiting the decline of tyrosine hydroxylase(TH)positive neurons and TH protein expression in substantia nigra of *** also prevented 1-methyl-4-phenylpyridinium(MPP+)induced neurotoxicity in SHSY5Y cells,by increasing GSH and GSH/GSSG ratio,and reducing reactive oxygen *** addition,the neuroprotective effects of TFA were associated with its ability to restore MPTP/MPP+induced downregulation of SLC7A11 and glutathione peroxidase 4(GPX-4).In conclusion,we demonstrated that TFA exerted significant neuroprotection against MPTP/MPP+induced neurodegeneration by inhibiting ferroptosis through the regulation of SLC7A11/GPX-4 axis,suggesting the use of TFA as a possible food supplement in the prevention of PD.

关键词： Parkinson’s disease Total fl avonoids of Astragalus membranaceus Ferroptosis SLC7A11

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Glibenclamide pretreatment attenuates early hematoma expansion of warfarin-associated intracerebral hemorrhage in rats by alleviating perihematomal blood-brain barrier dysfunction

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Chinese Neurosurgical Journal 2024年第1期10卷 8-19页

作者： Zongwei Zeng Liang Liang Zhou Feng Peiwen Guo Xiaoke Hao Jishu Xian Hua Feng yujie chen Zhi chen Department of Neurosurgery and State Key Laboratory of Trauma Burn and Combined InjurySouthwest HospitalThird Military Medical University(Army Medical University)Chongqing 400038China Department of Neurosurgery The 945Th Hospital of PLAYaanSichuan Province 625099China Department of Rehabilitation Southwest HospitalThird Military Medical University(Army Medical University)Chongqing 400038China Chongqing Key Laboratory of Precision Neuromedicine and Neuroregeneration Southwest HospitalThird Military Medical University(Army Medical University)Chongqing 400038China Chongqing Clinical Research Center for Neurosurgery Southwest HospitalThird Military Medical University(Army Medical University)Chongqing 400038China

Background Hematoma expansion is a determinant of poor outcome of intracerebral hemorrhage but occurs frequently,especially in warfarin-associated intracerebral hemorrhage(W-ICH).In the present study,we employ the warfarin-associated intracerebral hemorrhage(W-ICH)rat model,to explore the efficacy and potential mechanism of glibenclamide pretreatment on hematoma expansion after intracerebral hemorrhage,hoping to provide proof of concept that glibenclamide in stroke primary and secondary prevention is also potentially beneficial for intracerebral hemorrhage patients at early *** In the present study,we tested whether glibenclamide,a common hypoglycemic drug,could attenuate hematoma expansion in a rat model of *** expansion was evaluated using magnetic resonance imaging;brain injury was evaluated by brain edema and neuronal death;and functional outcome was evaluated by neurological *** blood-brain barrier integrity was assessed using Evans blue extravasation and tight junction-related *** The data indicated that glibenclamide pretreatment significantly attenuated hematoma expansion at 24 h after W-ICH,thus mitigating brain edema and neuronal death and promoting neurological function recovery,which may benefit from alleviating blood-brain barrier disruption by suppressing matrix *** The results indicate that glibenclamide pretreatment in stroke primary and secondary prevention might be a promising therapy for hematoma expansion at the early stage of W-ICH.

关键词： Intracerebral hemorrhage Warfarin Glibenclamide Hematoma expansion Blood-brain barrier Matrix metallopeptidase-9

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Neural stem cell-derived exosomes promote mitochondrial biogenesis and restore abnormal protein distribution in a mouse model of Alzheimer's disease

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Neural Regeneration Research 2024年第7期19卷 1593-1601页

作者： Bo Li yujie chen Yan Zhou Xuanran Feng Guojun Gu Shuang Han Nianhao cheng Yawen Sun Yiming Zhang Jiahui cheng Qi Zhang Wei Zhang Jianhui Liu Department of Radiology Renji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina Morphology and Spatial Multi-Omics Technology Platform Shanghai Institute of Nutrition and HealthChinese Academy of SciencesShanghaiChina Department of Anesthesiology Tongji HospitalSchool of MedicineTongji UniversityShanghaiChina Department of Blood Transfusion Huashan HospitalFudan UniversityShanghaiChina

Mitochondrial dysfunction is a hallmark of Alzheimer’s *** previously showed that neural stem cell-derived extracellular vesicles improved mitochondrial function in the cortex of AP P/PS1 *** Alzheimer’s disease affects the entire brain,further research is needed to elucidate alterations in mitochondrial metabolism in the brain as a ***,we investigated the expression of several important mitochondrial biogenesis-related cytokines in multiple brain regions after treatment with neural stem cell-derived exosomes and used a combination of whole brain clearing,immunostaining,and lightsheet imaging to clarify their spatial ***,to clarify whether the sirtuin 1(SIRT1)-related pathway plays a regulatory role in neural stem cell-de rived exosomes interfering with mitochondrial functional changes,we generated a novel nervous system-SIRT1 conditional knoc kout AP P/PS1mouse *** findings demonstrate that neural stem cell-de rived exosomes significantly increase SIRT1 levels,enhance the production of mitochondrial biogenesis-related fa ctors,and inhibit astrocyte activation,but do not suppress amyloid-β***,neural stem cell-derived exosomes may be a useful therapeutic strategy for Alzheimer’s disease that activates the SIRT1-PGC1αsignaling pathway and increases NRF1 and COXIV synthesis to improve mitochondrial *** addition,we showed that the spatial distribution of mitochondrial biogenesis-related factors is disrupted in Alzheimer’s disease,and that neural stem cell-derived exosome treatment can reverse this effect,indicating that neural stem cell-derived exosomes promote mitochondrial biogenesis.

关键词： Alzheimer’s disease mitochondrial biogenesis neural stem cell-derived exosome SIRT1-PGC1α regional brain distribution whole brain clearing and imaging

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D53 represses rice blast resistance by directly targeting phenylalanine ammonia lyases

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Journal of Integrative Plant Biology 2024年第9期66卷 1827-1830页

作者： Haitao Ye Qingqing Hou Haitao Lv Hui Shi Duo Wang yujie chen Tangshuai Xu Mei Wang Min He Junjie Yin Xiang Lu Yongyan Tang Xiaobo Zhu Lijuan Zou Xuewei chen Jiayang Li Bing Wang Jing Wang State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural UniversityChengdu 611130China Key Laboratory of Seed Innovation Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Yazhouwan National Laboratory Sanya 572024China

Phytohormones play important roles in orchestrating plantimmune responses to pathogen ***(SLs),a group of carotenoid-derived phytohormones,modulate diverse biological processes in plants,including shoot branching,plant height,root architecture,leaf senescence,seed germination of parasitic plants,and symbiosis of arbuscular mycorrhizal fungi(Burger and Chory,2020).Recently,increasing evidence has indicated potential roles for SLs in regulating responses against biotic stresses,including defense responses against certain pathogenic fungi and bacteria in roots and leaves(Yi et al.,2023).

关键词： ammonia resistance branching

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基于非线性各向异性滤波的图像特征匹配算法

中国空间科学技术（中英文） 2024年第3期44卷 157-166页

作者：李华杨杨陈雨杰长春理工大学计算机科学技术学院长春130000 特种电影技术及装备国家地方联合工程研究中心长春130000 数字媒体与虚拟现实实验室(长春理工大学) 长春130000

图像特征匹配是增强现实系统中的关键技术,匹配精度是提升特征匹配性能的关键。提出了一种多尺度特征匹配加强算法(I-AKAZE),通过对非线性各向异性滤波过程中传导函数的改进,减缓图像梯度值大的区域非线性扩散速度,极大程度地保留了匹... 详细信息

图像特征匹配是增强现实系统中的关键技术,匹配精度是提升特征匹配性能的关键。提出了一种多尺度特征匹配加强算法(I-AKAZE),通过对非线性各向异性滤波过程中传导函数的改进,减缓图像梯度值大的区域非线性扩散速度,极大程度地保留了匹配图像的边缘特征;同时,结合改进的非线性量化加速稳健特征描述符(NLG-SURF),提高了描述符的识别率。实验结果表明I-AKAZE算法在Mikolajczyk数据集上的可重复性得分相比目前先进的AKAZE算法有着大幅度提升,对应的特征描述符的平均识别率提升8.4%,并且运行速度比经典的SIFT算法快约19%,算法整体在检测和描述阶段上的性能都有提升。

关键词：特征检测特征描述符非线性各向异性滤波尺度空间传导函数

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Association between ICU quality and in-hospital mortality of V-V ECMO-supported patients—the ECMO quality improvement action(EQIA)study:a national cohort study in China from 2017 to 2019

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Frontiers of Medicine 2024年第2期18卷 315-326页

作者： Wei cheng Jieqing chen Xudong Ma Jialu Sun Sifa Gao Ye Wang Longxiang Su Lu Wang Wei Du Huaiwu He yujie chen Zunzhu Li Qi Li Jianhua Sun Hongbo Luo Jinbang Liu Guangliang Shan Bing Du Yanhong Guo Dawei Liu Chang Yin Xiang Zhou on behalf of the China National Critical Care Quality Control Center-the ECMO quality improvement action(EQIA)study Department of Critical Care Medicine State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100730China Information Center Department/Department of Information Management State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalPeking Union Medical College&Chinese Academy of Medical SciencesBeijing100730China Department of Medical Administration National Health Commission of the People’s Republic of ChinaBeijing100044China School of Population Medicine and Public Health Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing100730China Department of Epidemiology and Biostatistics Institute of Basic Medicine SciencesChinese Academy of Medical Sciences(CAMS)&School of Basic MedicinePeking Union Medical CollegeBeijing100730China National Institute of Hospital Administration National Health Commission of the People’s Republic of ChinaBeijing100044China 不详

This cohort study was performed to explore the influence of intensive care unit(ICU)quality on in-hospital mortality of veno-venous(V-V)extracorporeal membrane oxygenation(ECMO)-supported patients in *** study involved all V-V ECMO-supported patients in 318 of 1700 tertiary hospitals from 2017 to 2019,using data from the National Clinical Improvement System and China National Critical Care Quality Control *** quality was assessed by quality control indicators and capacity *** the 2563 V-V ECMO-supported patients in 318 hospitals,a significant correlation was found between ECMO-related complications and *** reintubation rate within 48 hours after extubation and the total ICU mortality rate were independent risk factors for higher in-hospital mortality of V-V ECMO-supported patients(cutoff:1.5%and 7.0%;95%confidence interval:1.05–1.48 and 1.04–1.45;odds ratios:1.25 and 1.23;P=0.012 and P=0.015,respectively).Meanwhile,the V-V ECMO center volume was a protective factor(cutoff of≥50 cases within the 3-year study period;95%confidence interval:0.57–0.83,odds ratio:0.69,P=0.0001).The subgroup analysis of 864 patients in 11 high-volume centers further strengthened these ***,ICU quality may play an important role in improving the prognosis of V-V ECMO-supported patients.

关键词： veno-venous extracorporeal membrane oxygenation in-hospital mortality high-volume centers quality control intensive care unit capacity parameters

D53 represses rice blast resistance by directly targeting phenylalanine ammonia lyases

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Journal of Integrative Plant Biology 2024年第09期 1827-1830页

作者： Haitao Ye Qingqing Hou Haitao Lv Hui Shi Duo Wang yujie chen Tangshuai Xu Mei Wang Min He Junjie Yin Xiang Lu Yongyan Tang Xiaobo Zhu Lijuan Zou Xuewei chen Jiayang Li Bing Wang Jing Wang State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural University Key Laboratory of Seed Innovation Institute of Genetics and Developmental Biology Chinese Academy of Sciences Yazhouwan National Laboratory

Phytohormones play important roles in orchestrating plant immune responses to pathogen attacks. Strigolactones(SLs), a group of carotenoid-derived phytohormones, modulate diverse biological processes in plants, including shoot branching, plant height, root architecture, leaf senescence,seed germination of parasitic plants, and symbiosis of arbuscular mycorrhizal fungi (Burger and Chory, 2020).

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