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Nano Research 2023年第7期16卷 10131-10138页

作者： Yawen Wang Heng Gao Yuanlan Liu Dong Li Bo Zhao wenkai liang Yinghui Sun Lin Jiang Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China College of Energy Soochow Institute for Energy and Materials Innovations and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006China

Al nanoparticles(NPs)exhibit excellent localized surface plasmon resonance(LSPR)properties and have been considered a promising alternative to plasmonic Au or Ag ***,it remains difficult to fabricate Al NPs with uniform size and controllable morphology over a large area on substrates,which seriously hinders the in-depth exploration of their properties and ***,we have developed a self-assembly nanoparticle template method to realize the controllable preparation of bowl-shaped Al NPs(Al nanobowls(Al NBs))with tunable sizes from 36 to 131 nm on the substrate surface,accompanied by tunable LSPR spectral responses from 272 to 480 *** them,131 nm Al NBs exhibit superior fluorescence enhancement ability(1932.2-fold)and a low detection limit(78.6 pM)towards 5-carboxyfluorescein,exceeding comparable Ag NBs and Au nanospheres(NSs).This can be attributed to the strong electromagnetic enhancement induced by the LSPR effect and the effective inhibition of fluorescence quenching caused by the self-passivated oxide ***,the successful fabrication of Al NBs on substrates is of vital significance for their promising applications,including surface-enhanced spectroscopy,sensitive fluorescence detection,light-harvesting devices,biosensing,and ultraviolet(UV)plasmonics.

关键词： Al nanoparticles controllable size localized surface plasmon resonance(LSPR) large-area fabrication fluorescence enhancement

Facile fabrication of a single-particle platform with high throughput via substrate surface potential regulated large-spacing nanoparticle assembly

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Nano Research 2022年第7期15卷 6713-6720页

作者： Dong Li Yinghui Sun Yawen Wang Yuanlan Liu Bo Zhao wenkai liang Heng Gao Lin Jiang Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China College of Energy Soochow Institute for Energy and Materials Innovations and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006China

Nanodevices based on the single nanoparticle represent innovative and promising technology,which could satisfy the increasing requirements of high accuracy,low energy consumption,and small ***,the acquisition of single particles involves complex operation,and the corresponding nanodevices display ***,we present a facile strategy to construct a single-particle platform with high throughput via substrate surface potential modulated a large-area and large-spacing nanoparticle *** platform not only avoids optic interference but also ensures the independent electrically conductive channel of single particle on ***,the dark-field microscopic imaging and single-particle scattering signals collecting of individual nanoparticles with plasmonic effect are satisfactory achieved based on the platform,and the first success in the fabrication of nano-organic-light-emitting-diodes with single nanoparticle resolution in *** the results indicate that the strategy may find promising applications in the in situ single-particle research such as single-particle detection,singleparticle catalysis,and optoelectronics.

关键词： single particle nanodevices electrostatic self-assembly substrate surface potential

Rational Design of Plasmonic Metal Nanostructures for Solar Energy Conversion

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CCS Chemistry 2022年第4期4卷 1153-1168页

作者： Yawen Wang Junchang Zhang wenkai liang He Yang Tianfu Guan Bo Zhao Yinghui Sun Lifeng Chi Lin Jiang Institute of Functional Nano&Soft Materials Laboratory(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional MaterialsSoochow UniversitySuzhou 215123 School of Physics and Electronic Engineering Changshu Institute of TechnologyChangshu 215500 College of Energy Soochow Institute for Energy and Materials Innovations and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006

Plasmonic metal nanostructures,possessing unique surface plasmon resonance properties,show excellent capabilities for light trapping and *** this basis,various plasmonic metal nanostructures offer extraordinary opportunities to promote the conversion efficiency of solar energy to electric energy,hydrogen energy or thermal energy,and so *** this review article,we highlight a number of recent research achievements on the rational design of plasmonic metal nanostructures so as to maximize the utilization of the entire solar *** with single metal nanoparticles,multiplex(such as multicompositions,sizes,or shapes)nanoparticle structures emphasize advantages in broadening the absorption range and improving light-utilization *** review concludes with discussions regarding challenges in this research field and proposals of prospects for future directions.

关键词： structural design metal nanostructures multiplexed assembly solar energy conversion

Mass Transfer-Promoted Fe^(2+)/Fe^(3+)Circulation Steered by 3D Flow-Through Co-Catalyst System Toward Sustainable Advanced Oxidation Processes

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Engineering 2024年第5期36卷 264-275页

作者： Weiyang Lv Hao Li Jinhui Wang Lixin Wang Zenglong Wu Yuge Wang wenkai Song wenkai Cheng Yuyuan Yao National Engineering Lab of Textile Fiber Materials and Processing Technology(Zhejiang) Zhejiang Sci-Tech UniversityHangzhou 310018China Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000China Jiangsu Ruiya Stirring Technology Co. Ltd.Yixing 214200China

Realizing fast and continuous generation of reactive oxygen species(ROSs)via iron-based advanced oxidation processes(AOPs)is significant in the environmental and biological ***,current AOPs assisted by co-catalysts still suffer from the poor mass/electron transfer and non-durable promotion effect,giving rise to the sluggish Fe^(2+)/Fe^(3+)cycle and low dynamic concentration of Fe^(2+)for ROS ***,we present a three-dimensional(3D)macroscale co-catalyst functionalized with molybdenum disulfide(MoS_(2))to achieve ultra-efficient Fe^(2+)regeneration(equilibrium Fe^(2+)ratio of 82.4%)and remarkable stability(more than 20 cycles)via a circulating flow-through *** the conventional batch-type reactor,experiments and computational fluid dynamics simulations demonstrate that the optimal utilization of the 3D active area under the flow-through mode,initiated by the convectionenhanced mass/charge transfer for Fe^(2+)reduction and then strengthened by MoS_(2)-induced flow rotation for sufficient reactant mixing,is crucial for oxidant activation and subsequent ROS ***,the flow-through co-catalytic system with superwetting capabilities can even tackle the intricate oily wastewater stabilized by different surfactants without the loss of pollutant degradation *** findings highlight an innovative co-catalyst system design to expand the applicability of AOPs based technology,especially in large-scale complex wastewater treatment.

关键词： Advanced oxidation processes 3D co-catalyst Flow-through mode Enhanced mass transfer Complex wastewater treatment

Reflective ultrathin light-sheet microscopy with isotropic 3D resolutions

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Photonics Research 2024年第2期12卷 271-281页

作者： YUE WANG DASHAN DONG wenkai YANG RENXI HE MING LEI KEBIN SHI State Key Laboratory for Mesoscopic Physics Department of PhysicsPeking UniversityBeijing 100871China State Key Laboratory of Membrane Biology School of Life Sciencesand Biomedical Pioneering Innovation Center(BIOPIC)Peking UniversityBeijing 100871China School of Physics Xi’an Jiaotong UniversityXi’an 710049China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China Peking University Yangtze Delta Institute of Optoelectronics Nantong 226010China

Light-sheet fluorescence microscopy(LSFM)has played an important role in bio-imaging due to its advantages of high photon efficiency,fast speed,and long-term imaging *** perpendicular layout between LSFM excitation and detection often limits the 3D resolutions as well as their ***,we report on a reflective type light-sheet microscope with a mini-prism used as an optical path *** conventional high NA objectives can be used both in excitation and detection with this *** resolutions in 3D down to300 nm could be achieved without *** proposed method also enables easy transform of a conventional fluorescence microscope to high performance light-sheet microscopy.

关键词： resolution excitation light

Influence of Al_(2)O_(3)/SiO_(2) Ratio on the Structure and Properties of Na^(+)/K^(+)Ion Exchange Na_(2)O-MgO-Al_(2)O_(3)-SiO_(2) Glasses

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Journal of Wuhan University of Technology(Materials Science) 2024年第3期39卷 606-612页

作者：吴建磊 CHEN Junzhu TIAN Xiaokun LI Jiahao GAO wenkai YUE Yunlong 康俊峰 School of Materials Science and Engineering University of JinanJinan 250022China CDGM GLASS Co.LTD Chengda 610199China

In this work,the structure,viscosity and ion-exchange process of Na_(2)O-MgO-Al_(2)O_(3)-SiO_(2) glasses with different Al_(2)O_(3)/SiO_(2) molar ratios were *** results showed that,with increasing Al_(2)O_(3)/SiO_(2) ratio,the simple structural units Q_(1) and Q_(2) transformed into highly aggregated structural units Q_(3) and Q_(4),indicating the increase of polymerization degree of glass ***,the coefficient of thermal expansion decreased from 9.23×10^(-6)℃^(-1) to 8.88×10^(-6)℃^(-1).The characteristic temperatures such as melting,forming,softening and glass transition temperatures increased with the increase of Al_(2)O_(3)/SiO_(2) ratio,while the glasses working temperature range became *** increasing Al_(2)O_(3)/SiO_(2) ratio and prolonging ion-exchange time enhanced the surface compressive stress(CS)and depth of stress layer(DOL).However,the increase of ion exchange temperature increased the DOL and decreased the CS affected by stress *** was a good linear relationship between stress relaxation and surface compressive *** strengthening significantly improved the hardness of glasses,which reached the maximum value of(622.1±10)MPa for sample with Al_(2)O_(3)/SiO_(2) ratio of 0.27 after heat treated at 410℃for 2 h.

关键词： network structure viscosity ion exchange aluminosilicate glass

Upregulation of circ0000381 atienuates microglial/macrophage pyroptosis after spinal cord injury

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Neural Regeneration Research 2024年第6期19卷 1360-1366页

作者： Yan Zhang wenkai Zhang Tao Liu Ziqian Ma Wenxiu Zhang Yun Guan Xueming Chen Central Laboratory Beijing Luhe Hospital Capital Medical University Department of Orthopedics Beijing Luhe Hospital Capital Medical University Department of Emergency Medicine Aerospace Center Hospital Department of Anesthesiology and Critical Care Medicine Johns Hopkins University School of Medicine Department of Neurological Surgery Johns Hopkins University School of Medicine

Neuroinflammation exacerbates secondary damage after spinal cord injury, while microglia/macrophage pyroptosis is important to neuroinflammation. Circular RNAs(circRNAs) play a role in the central nervous system. However, the functional role and mechanism of circRNAs in regulating microglia/macrophage pyroptosis after spinal cord injury are still poorly studied. In the present study, we detected microglia/macrophage pyroptosis in a female rat model of spinal cord injury, along with upregulated levels of circ0000381 in the spinal cord. Our further experimental results suggest that circ0000381 may function as a sponge to sequester endogenous microRNA423-3p(miR-423-3p), which can increase the expression of NOD-like receptor 3(NLRP3), a pyroptosis marker. Therefore, upregulation of circ0000381 may be a compensatory change after spinal cord injury to attenuate microglia/macrophage pyroptosis. Indeed, knockdown of circ0000381 expression exacerbated microglia/macrophage pyroptosis. Collectively, our findings provide novel evidence for the upregulation of circ0000381, which may serve as a neuroprotective mechanism to attenuate microglia/macrophage pyroptosis after spinal cord injury. Accordingly, circ0000381 may be a novel therapeutic target for the treatment of spinal cord injury.

关键词： circ0000381 inflammasome macrophage microglia miR-423-3p neuroinflammation neuroprotection NLRP3 pyroptosis RNA-Seq spinal cord injury

Application progresses of ultrasound for snakebites and relative complications

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中国医学影像技术 2024年第8期40卷 1258-1261页

作者： ZHENG Yiyin SHEN Yanyan BIN wenkai Department of Ultrasound Medicine Affiliated Nanhua HospitalUniversity of South ChinaHengyang 421002China Hengyang Medical College University of South ChinaHengyang 421001China

Snakebite has become a serious public health problem with high mortality and disability *** can provide imaging basis for diagnosis and treatment of snakebites and relative *** application progresses of ultrasound in ... 详细信息

关键词： snake bites ultrasonography diagnosis

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Time-space multiplexed photonic-electronic digital multiplier

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Photonics Research 2024年第3期12卷 499-504页

作者： wenkai ZHANG BO WU WENTAO GU JUNWEI CHENG HAILONG ZHOU LIAO CHEN WENCHAN DONG JIANJI DONG XINliang ZHANG Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China

Optical computing has shown immense application prospects in the post-Moore ***,as a crucial component of logic computing,the digital multiplier can only be realized on a small scale in optics,restrained by the limited functionalities and inevitable loss of optical *** this paper,we propose a time-space multiplexed architecture to realize large-scale photonic-electronic digital multiplication.

关键词： multiplier electronic restrained