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The appearance of cytoplasmic cytochrome C precedes apoptosis during drosophila salivary gland degradation

Insect Science 2024年第1期31卷 157-172页

作者： Shihui Long Wenxin Cao Yongyu Qiu Ruohan deng Jiali Liu Lidan Zhang Renke dong Fengxin Liu Sheng Li Haigang Zhao Na Li Kang Li guangdong Provincial Key Laboratory of Insect developmental Biology and Applied technology Institute of Insect Science and TechnologySchool of Life SciencesSouth China Normal UniversityGuangzhouChina guangdong Laboratory for Lingnan Modern Agriculture South China Agricultural UniversityGuangzhouChina Guangmeiyuan R&d Center Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied TechnologySouth China Normal UniversityMeizhouGuangdong ProvinceChina School of Food Science and Engineering South China University of TechnologyGuangzhouChina ChemPartner PharmaTech co. LtdJiangmenGuangdong ProvinceChina

Apoptosis is an important process for organism development that functions to eliminate cell damage,maintain homeostasis,and remove obsolete tissues during *** mammals,apoptosis is acco.panied by the release of cytochrome C(Cyt-c)from mitochondria to the ***,whether this process is co.served in the fruit fly,drosophila melanogaster,remains *** this study,we disco.ered that during the degradation of drosophila salivary gland,the transcription of mitochondria apoptosis factors(MAPFs),Cyt-c,and death-associated APAF1-related killer(dark)enco.ing genes are all upregulated antecedent to initiator and effector caspases enco.ing *** proteins Cyt-c and the active caspase 3 appear gradually in the cytoplasm during salivary gland ***,the Cyt-c protein co.ocates with mito-GFP,the marker indicating cytoplasmic mitochondria,and the change in mitochondrial membrane potential co.ncides with the appearance of Cyt-c in the ***,impeding or promoting 20E-induced transcription factor E93 suppresses or enhances the staining of Cyt-c and the active caspase 3 in the cytoplasm of salivary gland,and acco.dingly decreases or increases the mitochondrial membrane potential,*** research provides evidence that cytoplasmic Cyt-c appears before apoptosis during drosophila salivary gland degradation,shedding light on partial co.served mechanism in apoptosis between insects and mammals.

关键词： active caspase 3 apoptosis Cyt-c drosophila salivary gland

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Microstructure Evolution,Tribological and co.rosion Properties of Amorphous Alloy Strengthening Stainless Steel Fabricated by Selective Laser Melting in NaCl Solution

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Acta Metallurgica Sinica(English Letters) 2024年第5期37卷 825-839页

作者： Pengwei Jiang Gang Wang Yaosha Wu Zhigang Zheng Zhaoguo Qiu Tongchun Kuang Jibo Huang dechang Zeng School of Materials Science and Engineering South China University of TechnologyGuangzhou 510640China Zhongshan R&d Center for Materials Surface and Thin Films technology of the South China University of technology Gent Materials Surface Technology(Guangdong)Co.Ltd.Zhongshan 528437China Zhongshan Torch Polytechnic Zhongshan 528436China Yangjiang Branch Guangdong Laboratory Materials Science and Technology Yangjiang Advanced Alloys LaboratoryYangjiang 529599China

As a type of austenitic stainless steel,316L stainless steel has excellent plasticity,co.rosion resistance,and bioco.patibility,making it widely used in industries,especially in the marine ***,its lower yield strength and wear resistance are the obvious disadvantages that restrict its application in more *** this work,an Fe-based amorphous alloy(Fe^(am))was selected as reinforcement to enhance the 316L stainless steel prepared by selective laser melting(SLM),and microstructure evolution,mechanical properties,tribological and co.rosion performance of the SLMed samples were investigated in *** relative density values of both 316L stainless steel and Fe^(am)-reinforced samples are above 99%,which suggests that Fe^(am)-reinforced samples also have outstanding *** the as-etched micrograph,all of the SLMed samples exhibit cellular ***^(am)-reinforced samples have thicker sub-grain boundaries,and retained amorphous phase can be observed in the samples reinforced with 10 wt%and 15 wt%Fe^(am).As the addition of Fe^(am) increases,the microhardness and co.pression strength of the Fe^(am)-reinforced samples gradually improve and reach 449.2 HV and 2181.9 MPa,*** wear morphologies show that the 316L stainless steel and Fe^(am)-reinforced samples both experience abrasive wear and co.rosion wear in a 3.5 wt%NaCl ***,as the amount of Fe^(am) added increases,the co.fficient of friction and wear rate of SLMed samples gradually *** to the unreinforced sample,Fe^(am)-reinforced samples have lower co.rosion current density and higher pitting potential acco.ding to the potentiodynamic polarization curves and also exhibit superior co.rosion resistance in the salt spray *** work suggests that the addition of Fe-based amorphous alloy can improve the mechanical properties and wear resistance of 316L stainless steel,as well as its ability to withstand salt spray co.rosion.

关键词： Selective laser melting 316L stainless steel Amorphous alloy Tribology co.rosion

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Regulating the inner Helmholtz plane structure at the electrolyte-electrode interface for highly reversible aqueous Zn batteries

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Journal of Energy Chemistry 2024年第8期95卷 57-67,I0002页

作者： Jianghe Liu Sanlue Hu Hexin Guo Guobin Zhang Wen Liu Jianwei Zhao Shenhua Song Cuiping Han Baohua Li Shenzhen Key Laboratory on Power Battery Safety and Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055GuangdongChina Shenzhen Key Laboratory of Advanced Materials School of Materials Science and EngineeringHarbin Institute of TechnologyShenzhen 518055GuangdongChina Faculty of Materials Science and Energy Engineering/Institute of technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina Shenzhen HUASUAN technology co. Ltd.Shenzhen 518055GuangdongChina

The development of aqueous Zn batteries is limited by parasitic water reactions,co.rosion,and dendrite *** address these challenges,an inner Helmholtz plane(IHP)regulation method is proposed by employing low-co.t,non-toxic maltitol as the electrolyte *** preferential adsorption behavior of maltitol can expel the water from the inner Helmholtz plane,and thus hinder the immediate co.tact between Zn metal and H_(2)***,strong interaction between maltitol and H_(2)O molecules can restrain the activity of H_(2)***,the"IHP adsorption effect"along with the low LUMO energy level of maltitol-CF_(3)SO_(3)^(-)can promote the in-situ formation of an organic-inorganic co.plex solid electrolyte interface(SEI)*** a result,the hydrogen/oxygen evolution side reaction,co.rosion,and dendrites issues are effectively suppressed,thereby leading to highly reversible and dendrite-free Zn plating/*** Zn‖I_(2)battery with hybrid electrolytes also demonstrates high electrochemical performance and ultralong cycling stability,showing a capacity retention of 75%over 20000 charge-discharge cycles at a large current density of 5 A g^(-1).In addition,the capacity of the device has almost no obvious decay over20000 cycles even at-30℃.This work offers a successful electrolyte regulation strategy via the IHP adsorption effect to design electrolytes for high-performance rechargeable Zn-ion batteries.

关键词： Inner Helmholtz plane Adsorption effect dendrite suppression SEI layer Zn||I_(2)battery

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Inhibiting the phase transition of WO_(3)for highly stable aqueous electrochromic battery

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Journal of Energy Chemistry 2024年第8期95卷 86-95,I0003页

作者： Zhisheng Wu Zhendong Lian Ting ding Jielei Li Jincheng Xu Jinxiao Wang Liangxing Zhang Bo Wang Shi Chen Peng Xiao Hua Xu Shuang-Peng Wang Kar Wei Ng Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoAvenida da UniversidadeMacao 999078China School of Applied Physics and Materials Wuyi UniversityJiangmen 529020GuangdongChina guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic technology School of Physics and Optoelectronic EngineeringFoshan UniversityFoshan 528225GuangdongChina Guangzhou New Vision Optoelectronic technology co. Ltd.Guangzhou 510530GuangdongChina

Aqueous electrochromic battery(ECB)has shown intense potential for achieving energy storage and saving *** tungsten oxide(WO_(3))is the most promising EC material for co.mercialization,the cycling stability of WO_(3)-based aqueous ECBs is currently unsatisfactory due to the repeated phase transition during the redox process and the co.rosion by acidic ***,we present a titanium-tungsten oxide alloy(Ti-WO_(3))with co.trollable morphology and crystal phase synthesized by a facile hot injection method to overco.e the *** co.trast to co.ventional monoclinic WO_(3),the Ti-WO_(3)nanorods can stably maintain their cubic crystal phase during the redox reaction in an acidic electrolyte,thus leading to dramatically enhanced response speed and cycling stability,Specifically,when working in a well-matched hybrid Al^(3+)/Zn^(2+)aqueous electrolyte,our phasetransition-free cubic Ti-WO_(3)exhibits an ultra-high cycling stability(>20000 cycles),fast response speed(3,95 s/4,65 s for bleaching/co.oring),as well as excellent discharge areal capacity of 214.5 mA h m^(-2),We further fabricate a fully co.plementa ry aqueous electrochromic device,for the first time,using a Ti-WO_(3)/Prussian blue device ***,the co.plementary ECB shows>10000 stable operation cycles,attesting to the feasibility of our Ti-WO_(3)for practical *** work validates the significance of inhibiting the phase transitions of WO_(3)during the electrochromic process for realizing highly cyclable aqueous ECB,which can possibly provide a generalized design guidance for other high-quality metallic oxides for electrochemical applications.

关键词： Aqueous electrochromic battery Ti-WO_(3) Phase transition Long-term stability

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A co.posite Transformer-Based Multi-Stage defect detection Architecture for Sewer Pipes

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co.puters, Materials & co.tinua 2024年第1期78卷 435-451页

作者： Zifeng Yu Xianfeng Li Lianpeng Sun Jinjun Zhu Jianxin Lin School of co.puter Science and Engineering Macao University of Science and TechnologyMacao999078China School of Environmental Science and Engineering Sun Yat-sen UniversityGuangzhou510275China guangdong AIKE Environmental Science and technology co. Ltd.Zhongshan528400China

Urban sewer pipes are a vital infrastructure in modern cities,and their defects must be detected in time to prevent potential *** recent years,to relieve the manual efforts by human experts,models based on deep learning have been introduced to automatically identify potential ***,these models are insufficient in terms of dataset co.plexity,model versatility and *** work addresses these issues with amulti-stage defect detection architecture using a co.posite backbone Swin *** based on this architecture is trained using a more co.prehensive dataset co.tainingmore classes of *** ablation studies on the modules of co.bined backbone Swin Transformer,multi-stage detector,test-time data augmentation and model fusion,it is revealed that they all co.tribute to the improvement of detection accuracy from different *** model inco.porating all these modules achieves the mean Average Precision(mAP)of 78.6% at an Intersection over Union(IoU)threshold of *** represents an improvement of 14.1% over the ResNet50 Faster Region-based co.volutional Neural Network(R-CNN)model and a 6.7% improvement over You Only Look Once version 6(YOLOv6)-large,the highest in the YOLO *** addition,for other defect detection models for sewer pipes,although direct co.parison with themis infeasible due to the unavailability of their private datasets,our results are obtained from a more co.prehensive dataset and have superior generalization capabilities.

关键词： Sewer pipe defect detection deep learning model optimization co.posite transformer

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High-power all-polarization-maintaining fiber femtoseco.d pulse laser at 780 nm and its engineering integration

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中国激光 2024年

作者：罗韬温俊鹏王文龙李梓晗朱喆杨家豪吴垠修昊范怡衡刘亚龙韦小明杨中民 Guangzhou Yangming Laser technology co. Ltd 3. Research Institute of Future Technology South China Normal University School of Physics and Optoelectronics State Key Laboratory of Luminescent Materials and Devices Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Device Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques South China University of Technology

We present a high-power, high-stability all-polarization-maintaining (all-PM)fiber femtoseco.d pulse laser source at 780 nm with full engineering integration that co.prises an all-PM fiber amplified chirped pulse laser at 1560 nm, a grating pair co.pressorandaseco.d-harmonicgeneration(SHG)***-PMfiber amplified chirped pulse laser at 1560 nm operates with a repetition rate of 111.5 MHz and an average power of 5.37 W, which is co.pressed with a pulse width of～204 *** 780-nm pulses are subsequently generated by SHG in a frequency-doubling *** achieve an average power of 2.22 W at 780 nm with a pulse width of 288 fs, an SHG efficiency of 52%, and a root-mean-square power fluctuation of 0.23%, which is *** integrated for practical application with reliable laser operation. We anticipate that this780-nmall-PMfiberfemtoseco.dpulselaserwithfullengineeringintegrationis promising for frontier applications, like two-photon imaging, nanofabrication, terahertz generation, etc.

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High-stability double-layer polymer-inorganic co.posite electrolyte fabricated through ultraviolet curing process for solid-state lithium metal batteries

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Frontiers of Materials Science 2024年第2期18卷 117-128页

作者： Xinghua Liang Pengcheng Shen Lingxiao Lan Yunmei Qin Ge Yan Meihong Huang Xuanan Lu Qiankun Hun Yujiang Wang Jixuan Wang Guangxi Key Laboratory of Automobile co.ponents and Vehicle technology Guangxi University of Science&TechnologyLiuzhou 545006China Guangxi Automobile Group co. Ltd.Liuzhou 545006China School of Automotive Engineering Guangdong Polytechnic of Industry and CommerceGuangzhou 510510China

Electrolyte interface resistance and low ionic co.ductivity are essential issues for co.mercializing solid-state lithium metal batteries(SSLMBs).This work details the fabrication of a double-layer solid co.posite electrolyte(dLSCE)for *** co.posite co.prises poly(vinylidene fluoride-co.hexafluoropropylene)(PVdF-HFP)and poly(methyl methacrylate)(PMMA)co.bined with 10 wt.%of Li_(6.4)La_(3)Zr_(1.4)Ta_(0.6)O_(12)(LLZTO),synthesized through an ultraviolet curing *** ionic co.ductivity of the dLSCE(2.6×10^(-4) S·cm^(-1))at room temperature is the high lithium-ion transference number(0.57),and the tensile strength is 17.8 *** this dLSCE was assembled,the resulted LFP/dLSCE/Li battery exhibited excellent rate performance,with the discharge specific capacities of 162.4,146.9,93.6,and 64.0 mA·h·g^(-1) at 0.1,0.2,0.5,and 1 C,***,the dLScE demonstrates remarkable stability with lithium metal batteries,facilitating the stable operation of a Li/Li symmetric battery for over 200 h at both 0.1 and 0.2 ***,the formation of lithium dendrites is also effectively inhibited during *** work provides a novel design strategy and preparation method for solid co.posite electrolytes.

关键词： electrochemicalreliability lithium metal battery lithium-ion transference number double-layer solid co.posite electrolyte

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Strategy of preparing Smco.based films with high co.rcivity and remanence ratio achieved by temperature and chemical optimization

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Journal of Rare Earths 2024年第7期42卷 1289-1297,I0004页

作者： Yansong Gong Zhaoguo Qiu Sizhe Liang Xinrui Zheng Hongxia Meng Zhigang Zheng deyang Chen Shengfu Yuan Weixing Xia dechang Zeng J.P.Liu School of Materials Science and Engineering South China University of TechnologyGuangzhou510640China Zhongshan R&d Center for Materials Surface and Thin Films technology of the South China University of technology Gent Materials Surface Technology(Guangdong)Co.Ltd.Zhongshan528437China Institute for Advanced Materials South China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006China Yangjiang Branch Guangdong Laboratory Materials Science and Technology Yangjiang Advanced Alloys LaboratoryYangjiang529500China Laboratory of Rare-Earth Magnetic Functional Materials Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingbo315201China department of Physics University of Texas at ArlingtonArlingtonTX76019USA

Smco.based films with excellent intrinsic magnetic properties have promising applications in micro-electro-mechanical system(MEMS).However,due to the co.plexity of phase co.position and unco.trollable crystallization degree of Smco.hard magnetic phase in the film,both the co.rcivity(Hc)and remanence(Mr)of films are difficult to enhance *** this paper,Smco.based films were deposited with a Cr underlayer and capping layer on single crystal Si substrates via magnetron sputtering *** effects of annealing parameters and Sm/co.atomic ratio on the phase structure and co.rcivity of films are *** adjusting the Sm/co.atomic ratio from 1:5 to 1:4,co.soft magnetic phase disappears and the single phase Smco. is obtained,leading to the increase of co.rcivity of the films from 30 to 34 *** influence of deposition temperature and Cu doping on magnetic properties of Smco.based films was *** the deposition temperature increases from room temperature to 250℃,the co.rcivity will further increase from 34 to 51 ***,a severe kink is observed in the demagnetization curves due to the poor exchanged *** analysis of transmission electron microsco.y(TEM)co.firms that the average size of non-hard magnetic amorphous phase exceeds the effective exchanged co.pling length of Smco.,which co.tributes to the deco.pling and low remanence ***,doping Cu and applying a post-annealing process can significantly improve the crystallization degree of the *** the co.rcivity and the remanence ratio of the demagnetization curves are greatly *** propose a plausible strategy to prepare the Smco.based films with high co.rcivity and remanence ratio by temperature and chemical optimization,which can be utilized in high performed MEMS devices.

关键词： Rare earths Smco.based films Phase co.position Crystallization co.ditions co.rcivity Remanence ratio

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Stabilizing iridium sites via interface and reco.struction regulations for water oxidation in alkaline and acidic media

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Journal of Energy Chemistry 2024年第2期89卷 355-363,I0009页

作者： Weibin Chen Yanhui Song Lei Li Junjie Guo Zhan Lin guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006GuangdongChina Key Laboratory of Interface Science and Engineering in AdvancedMaterials Ministry of EducationTaiyuan University of TechnologyTaiyuan 030024ShanxiChina

Exploring effective iridium(Ir)-based electrocatalysts with stable iridium centers is highly desirable for oxygen evolution reaction(OER).Herein,we regulated the inco.poration manner of Ir in co.(3)O_(4)support to stabilize the Ir sites for effective *** anchored on the surface of co.(3)O_(4)in the form of Ir(OH)_6 species,the created Ir-OH-co.interface leads to a limited stability and poor acidic OER due to Ir *** doped into co.(3)O_(4)lattice,the analyses of X-ray absorption spectrosco.y,in-situ Raman,and OER measurements show that the partially replacement of co.in co.(3)O_(4)by Ir atoms inclines to cause strong electronic effect and activate lattice oxygen in the presence of Ir-O-co.interface,and simultaneously master the reco.struction effect to mitigate Ir dissolution,realizing the improved OER activity and stability in alkaline and acidic *** a result,Ir_(lat)@co.(3)O_(4)with Ir loading of 3.67 wt%requires 294±4 mV/285±3 mV and 326±2 mV to deliver 10 mA cm^(-2)in alkaline(0.1 M KOH/1.0 M KOH)and acidic(0.5 M H_(2)SO_(4))solution,respectively,with good stability.

关键词： Interface effect Reco.struction Ir dissolution Ir-O-co Oxygen evolution reaction

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Structural elucidation of mulberry leaf oligosaccharide and its selective promotion of gut microbiota to alleviate type 2 diabetes mellitus

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Food Science and Human Wellness 2024年第4期13卷 2161-2173页

作者： Tenggen Hu Yuanshan Yu Jijun Wu Yujuan Xu Gengsheng Xiao Kejing An Erna Li Sentai Liao Yuxiao Zou Sericultural&Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional FoodsMinistry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products ProcessingGuangzhou 510610China Huagongliya(Foshan)technology Industry co. Ltd.Foshan 528313China Heyuan Branch Guangdong Laboratory for Lingnan Modern AgricultureHeyuan 517001China Zhongkai University of Agriculture and Engineering Guangzhou 510225China

Two oligosaccharide fractions(MLO 2-1 and 2-2)were purified from enzymatic hydrolysate of mulberry leaf *** results of simulated digestion showed that MLO 2-2 was a digestible oligosaccharide,which co.ld be degraded by human digestive juice;while MLO 2-1 possessed the non-digestible property in the upper gastrointestinal tract and performed the function by regulating the gut ***,MLO 2-1 was selected for the further *** structure of MLO 2-1 was elucidated as follow:α-T-Glcp-(1→3)-β-Glcp-(1→5)-α-Araf-(1→5)-α-Araf-1→5)-α-Araf-(1→3)-α-(2-OAc)-*** in vitro fecal fermentation results showed that MLO 2-1 co.ld modulate the co.position of gut ***,MLO 2-1 was effectively metabolized by fecal bacteria to produce lactate and short chain fatty acids,especially acetate and *** specific metabolic pathways of MLO 2-1 by gut microbiota were further *** microbiota analysis revealed that MLO 2-1 selectively promoted the growth of Ligilactobacillus murinus,a co.mensal bacterium presented a reduced level in T2dM *** experiments indicated that MLO 2-1 and *** exhibited hypoglycemic *** results demonstrated that MLO 2-1 might alleviate T2dM by selectively accelerating the proliferation of ***.

关键词： Mulberry leaf oligosaccharide Characterization Gut microbiota Lactobacillus murinus Hypoglycemic activity

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