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External-to-internal synergistic strategy to enable multi-scale stabilization of LiCoO_(2)at high-voltage

Journal of Energy Chemistry 2023年第1期76卷 516-527,I0013页

作者： Shuaipeng Hao Yunjiao Li Jiachao Yang Shan Wang Zhouliang Tan Xiaoming Xi Zhenjiang He Panpan Zhang School of Metallurgy and Environment Central South UniversityChangsha 410083HunanChina Engineering Research Center of the Ministry of Education for Advanced Battery Materials Central South UniversityChangsha 410083HunanChina Changsha Research Institute of Mining and Metallurgy Changsha 410083HunanChina Office of Laboratory and Equipment Management Xinjiang UniversityUrumqi 830000XinjiangChina

High-voltage LiCoO_(2)(LCO)offers a prelude to breaking the bottleneck of the energy density of lithium-ion batteries,however,LiCoO_(2)is subject to serious structural and interfacial degradation above voltages>4.55 V(vs.Li/Li^(+)).Herein,an in-situ Li_(6.25)La_(3)Zr_(2)A_(l0.25)O_(12)(LLZAO)layer is constructed on the LCO surface to achieve operating voltage at 4.6 V.The detailed characterizations(ex-situ XRD,ex-situ Raman,DFT,etc.)reveal that the LLZAO layer greatly enhances Li+conductivity attributed to the ionconducting layer on the surface/interface,and closely combines with LiCoO_(2)particle to ensure stable cathode/electrolyte interface,thus suppressing the highly reactive Co^(4+)and O^(-)triggered surface side reactions at high-voltage.Moreover,the introduction of La^(3+)/Zr^(4+)/Al^(3+)with a larger ionic radius(La^(3+)/Zr^(4+)are larger than Co^(3+))and weaker electronegativity(La/Zr/Al are weaker than Co)into Co^(3+)sites readjusts the electron cloud density between Co–O–Li,which reinforces the Co–O bond and widens the band-center gap of Co 3d and O 2p,thus restraining the detrimental phase transition(from H3 to H1-3 phase)and the formation of Co_(3)O_(4)spinel phase(attributed to lattice oxygen release),subsequently alleviating the particle cracking and structural collapse during repeated Li^(+)de/intercalation.Therefore,after 100 cycles at 3.0–4.6 V,LCO@1.0LLZAO exhibits a superior discharge capacity of 188.5 m A h g^(-1),with a capacity retention of 85.1%.The above research has brought about meaningful guidance for the evolution of cathode materials with high voltage.

关键词： LLZAO layer High-voltage LiCoO_(2) Irreversible phase transition Band-center gap Lattice oxygen release

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A downshifting Eu^3+doped glass embedded with concave pyramid microstructure to improve the efficiency of silicon solar cell

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Journal of Rare Earths 2020年第11期38卷 1158-1164,I0001页

作者： Xing yang jiachao Chen Songsheng Zheng Chao Chen College of Energy Xiamen UniversityXiamen 361005China

The average photoelectric conversion efficiency(PCE)of a bare mono crystalline silicon solar cell is 14.71%±0.03%under AM1.5.It decreases to 14.20%±0.005%when covering an un-doped flat glass on the solar cell,and it goes down to 14.10%±0.005%by using a 5 wt%Eu^3+doped glass.The absorptions of the Eu^3+doped CPM glass one-to-one match the excitation spectra at 362,381,393,400,413 and464 nm,which are related to the transitions of 7 F0→(5 D4,5 G2,5 L6,5 D3),7 F1→5 D3,and 7 F0→5 D2,respectively.In addition,a concave pyramid microstructure(CPM)is embedded in the glass surface to increase light transmittance.The average PCE increases to 14.61%±0.07%when a 5 wt%Eu^3+doped CPM glass covers on the silicon solar cell.Compared with the un-doped flat glass,a net increase of the PCE is0.41%,where the 0.16%increment of PCE is from the lighting trapping of the CPM structure,and the downshifting of near ultraviolet(NUV)light by Eu^3+ion donates the other 0.25%increment.It confirms that the as-prepared Eu^3+doped CPM glass has a good downshifting and antireflection function.

关键词： Solar cell Concave pyramid microstructure Eu^3+doped glass Photoelectric conversion efficiency Rare earths

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Occurrence, distribution and risk assessment of antibiotics at various aquaculture stages in typical aquaculture areas surrounding the Yellow Sea

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Journal of Environmental Sciences 2023年第4期126卷 621-632页

作者： jiachao Zhang Xuanrui Zhang yang Zhou Qianfan Han Xiaoli Wang Chao Song Shuguang Wang Shan Zhao Shandong Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and EngineeringShandong UniversityQingdao 266237China Water Science and Environmental Engineering Research Center College of Chemical and Environmental EngineeringShenzhen UniversityShenzhen 518060China Qingdao Municipal Bureau of Ecology and Environment Qingdao 266003China Analysis and Test Center Qilu University of Technology(Shandong Academy of Sciences)Jinan 250014China

The pollution of antibiotics commonly existed throughout the entire aquaculture process,but the residues of antibiotics at different aquaculture stages have rarely been studied.This study investigated the occurrence,distribution and risk assessment of antibiotics at different aquaculture stages (the non-aquaculture stage,the early aquaculture stage,the middle aquaculture stage,and the late aquaculture stage) in two typical marine aquaculture areas(Mahegang River and Dingzi Bay) surrounding the Yellow Sea.Fluoroquinolones and tetracyclines were commonly used antibiotics in the aquaculture of these areas with high detection frequencies (17%to 83%).Compared among four aquaculture stages,the highest concentration of antibiotics (9032.08 ng/L) in aquaculture ponds was detected at the late aquaculture stage.And the antibiotic pollution level of natural water was directly related to the aquaculture stages.Similarly,at the aquaculture stages,the detection frequency of antibiotics in sediments was higher than that at the non-aquaculture stage.Based on the correlation analysis,the concentration of main antibiotics in water showed a positive correlation with total nitrogen (p<0.05) and chlorophyll a (p<0.01),while it showed a negative correlation with salinity (p<0.01) in coastal water of the Dingzi Bay.According to the risk assessment,with the development of aquaculture stages,the selection pressure of fluoroquinolones and tetracyclines on resistant bacteria had increased.And the ecological risks caused by sulfonamides and tetracyclines to aquatic organisms had also increased markedly.Overall,this study may provide a reference for formulating regulatory policies regarding antibiotic use at different aquaculture stages.

关键词： Antibiotics Aquaculture stages Correlation analysis Risk assessment

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Responses of ammonia-oxidizing microorganisms to biochar and compost amendments of heavy metals-polluted soil

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Journal of Environmental Sciences 2021年第4期33卷 263-272页

作者： Mingyue Li jiachao Zhang Xiao yang Yaoyu Zhou Lihua Zhang Yuan yang Lin Luo Qingyun Yan College of Resources and Environment Hunan Agricultural UniversityChangsha 410128China Environmental Microbiomics Research Center School of Environmental Science and EngineeringSouthern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Sun Yat-sen UniversityGuangzhou 510006China Korea Biochar Research Center O-Jeong Eco-Resilience Institute(OJERI)&Division of Environmental Science and Ecological EngineeringKorea UniversitySeoul 02841Republic of Korea

Heavy metal pollution affects soil ecological function.Biochar and compost can effectively remediate heavy metals and increase soil nutrients.The effects and mechanisms of biochar and compost amendments on soil nitrogen cycle function in heavy-metal contaminated soils are not fully understood.This study examined how biochar,compost,and their integrated use affected ammonia-oxidizing microorganisms in heavy metal polluted soil.Quantitative PCR was used to determine the abundance of ammonia-oxidizing archaea(AOA)and bacteria(AOB).Ammonia monooxygenase(AMO)activity was evaluated by the enzymelinked immunosorbent assay.Results showed that compost rather than biochar improved nitrogen conversion in soil.Biochar,compost,or their integrated application significantly reduced the effective Zn and Cd speciation.Adding compost obviously increased As and Cu effective speciation,bacterial 16 S rRNA abundance,and AMO activity.AOB,stimulated by compost addition,was significantly more abundant than AOA throughout remediation.Correlation analysis showed that AOB abundance positively correlated with NO_(3)^(-)-N(r=0.830,P<0.01),and that AMO activity had significant correlation with EC(r=-0.908,P<0.01)and water-soluble carbon(r=-0.868,P<0.01).Those seem to be the most vital factors affecting AOB community and their function in heavy metal-polluted soil remediated by biochar and compost.

关键词： Biochar Compost Heavy metal Ammonia-oxidizing community Ammonia monooxygenase activity

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Pathological Networks Involving Dysmorphic Neurons in Type ⅡFocal Cortical Dysplasia

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Neuroscience Bulletin 2022年第9期38卷 1007-1024页

作者： Yijie Shao Qianqian Ge Jiachao Yang Mi Wang Yu Zhou Jin-Xin Guo Mengyue Zhu Jiachen Shi Yiqi Hu Li Shen Zhong Chen Xiao-Ming Li Jun-Ming Zhu Jianmin Zhang Shumin Duan Jiadong Chen Center for Neuroscience and Department of Neurosurgery of the Second Affiliated Hospital NHC and CAMS Key Laboratory of Medical NeurobiologyMOE Frontier Science Center for Brain Research and Brain-Machine IntegrationSchool of Brain Science and Brain MedicineZhejiang University School of MedicineHangzhou310058China Department of Neurosurgery of the Second Affiliated Hospital Zhejiang University School of MedicineHangzhou310009China The MOE Key Laboratory of Biosystems Homeostasis&Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology Life Sciences InstituteZhejiang UniversityHangzhou310058China Department of Orthopedic Surgery School of Medicinethe Second Affiliated HospitalZhejiang UniversityHangzhou310009China Hangzhou Innovation Center Zhejiang UniversityHangzhou310058China Institute of Pharmacology&Toxicology NHC and CAMS Key Laboratory of Medical NeurobiologyCollege of Pharmaceutical SciencesSchool of Basic Medical SciencesZhejiang UniversityHangzhou310058China Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province College of Pharmaceutical SciencesZhejiang Chinese Medical UniversityHangzhou310058China Center for Neuroscience and Department of Neurology of the Second Affiliated Hospital Zhejiang University School of MedicineHangzhou310058China NHC and CAMS Key Laboratory of Medical Neurobiology Center for Brain Science and Brain-Inspired IntelligenceJoint Institute for Genetics and Genome Medicine betweenGuangdong Hong Kong Macao Greater Bay AreaZhejiang University and the University of TorontoZhejiang University School of MedicineHangzhou310058China

Focal cortical dysplasia(FCD)is one of the most common causes of drug-resistant epilepsy.Dysmorphic neurons are the major histopathological feature of typeⅡFCD,but their role in seizure genesis in FCD is unclear.Here we performed whole-cell patch-clamp recording and morphological reconstruction of cortical principal neurons in postsurgical brain tissue from drug-resistant epilepsy patients.Quantitative analyses revealed distinct morphological and electrophysiological characteristics of the upper layer dysmorphic neurons in typeⅡFCD,including an enlarged soma,aberrant dendritic arbors,increased current injection for rheobase action potential firing,and reduced action potential firing frequency.Intriguingly,the upper layer dysmorphic neurons received decreased glutamatergic and increased GABAergic synaptic inputs that were coupled with upregulation of the Na^(+)-K^(+)-Cl^(−)cotransporter.In addition,we found a depolarizing shift of the GABA reversal potential in the CamKⅡ-cre::PTENflox/flox mouse model of drug-resistant epilepsy,suggesting that enhanced GABAergic inputs might depolarize dysmorphic neurons.Thus,imbalance of synaptic excitation and inhibition of dysmorphic neurons may contribute to seizure genesis in typeⅡFCD.

关键词： Focal cortical dysplasia Dysmorphic neuron Whole-cell patch-clamp recording Morphological reconstruction Excitation-inhibition balance

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结构损伤识别中的生物地理学优化算法

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河海大学学报（自然科学版） 2018年第3期46卷 234-239页

作者：张家超杨海霞河海大学力学与材料学院江苏南京210098

为将生物地理学优化(BBO)算法有效应用于结构损伤识别中,结合余弦迁移模型、自适应迁入函数和精英机制对算法进行改进。以简支梁结构为例,进行不同损伤情况下的损伤位置和损伤程度的识别。算例计算结果表明,改进后的算法在结构损伤识别... 详细信息

为将生物地理学优化(BBO)算法有效应用于结构损伤识别中,结合余弦迁移模型、自适应迁入函数和精英机制对算法进行改进。以简支梁结构为例,进行不同损伤情况下的损伤位置和损伤程度的识别。算例计算结果表明,改进后的算法在结构损伤识别中具有计算简便、收敛速度快、识别精度高、稳定性好的特点,相比于BBO性能明显提升,能够在结构损伤识别问题中加以有效地应用。

关键词：生物地理学优化算法结构损伤识别简支梁自适应迁入函数

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Genomic Mutations Within the Host Microbiome: Adaptive Evolution or Purifying Selection

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Engineering 2023年第1期20卷 96-102页

作者： jiachao Zhang Rob Knight School of Food Science and Engineering Hainan UniversityHaikou 570228China Department of Pediatrics University of California San DiegoLa JollaCA 92093USA Center for Microbiome Innovation Jacobs School of EngineeringUniversity of California San DiegoLa JollaCA 92093USA Department of Bioengineering University of California San DiegoLa JollaCA 92093USA Department of Computer Science and Engineering University of California San DiegoLa JollaCA 92093USA

Next-generation sequencing technology has transformed our ability to assess the taxonomic composition functions of host-associated microbiota and microbiomes. More human microbiome research projects—particularly those that explore genomic mutations within the microbiome—will be launched in the next decade. This review focuses on the coevolution of microbes within a microbiome, which shapes strain-level diversity both within and between host species. We also explore the correlation between microbial genomic mutations and common metabolic diseases, and the adaptive evolution of pathogens and probiotics during invasion and colonization. Finally, we discuss advances in methods and algorithms for annotating and analyzing microbial genomic mutations.

关键词： Gut microbiota Genomic mutations Adaptive evolution Purifying selection Single-nucleoti de variants

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墨兰CsAP1-A基因克隆及表达分析

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广东农业科学 2023年第9期50卷 99-107页

作者：周荣刘嘉超杨凤玺佛山科学技术学院广东佛山528000 广东省农业科学院环境园艺研究所/广东省园林花卉种质创新综合利用重点实验室广东广州510640

【目的】AP1基因在植物的花器官发育和开花调控中发挥重要作用,对墨兰AP1基因进行克隆与表达分析可为研究其在墨兰花发育和开花调控中的作用提供前期基础。【方法】以墨兰品种‘小香’为材料,克隆到1个AP1基因,命名为CsAP1-A。通过生物... 详细信息

【目的】AP1基因在植物的花器官发育和开花调控中发挥重要作用,对墨兰AP1基因进行克隆与表达分析可为研究其在墨兰花发育和开花调控中的作用提供前期基础。【方法】以墨兰品种‘小香’为材料,克隆到1个AP1基因,命名为CsAP1-A。通过生物信息学分析其基因结构、蛋白结构域和进化关系,利用RTqPCR方法分别检测CsAP1-A在墨兰不同器官、不同花发育阶段和不同花组织部位的表达情况;通过转录组测序分析CsAP1-A在5个不同花型墨兰品种花组织部位的表达情况;通过蛋白互作预测软件分析CsAP1-A与其他蛋白的互作关系。【结果】CsAP1-A基因编码区为744 bp,编码248个氨基酸,含有高度保守的MADS-box和K-box结构域,符合MADS-box转录因子家族特征。CsAP1-A与其他兰科植物AP1蛋白相似性较高,其中与春兰AP1/FUL3(APY18447.1)和蕙兰MADS1(AGE15496.1)的同源性最高。RT-qPCR分析结果表明,CsAP1-A在墨兰不同器官中均有表达,在花中表达量最高,且集中在花芽分化初期(S1)高表达。在不同花型的墨兰品种中,CsAP1-A在WT(普通型)、MPV(重瓣花型)、LaPV(花瓣唇瓣化花型)和NLV(唇瓣萼片化花型)4种花型的合蕊柱中表达量均最高,而在萼片中表达量最低;在合蕊柱异常发育的MPV中,CsAP1-A在合蕊柱的表达量显著提高,而在花瓣蕊柱化的梅瓣花型(GPV)中整体表达量最高,且表达区域从合蕊柱扩展到花瓣。蛋白互作预测CsAP1-A蛋白可与MADS1、MADS6、MADS47、MADS8等10个蛋白存在互作关系。【结论】墨兰CsAP1-A的基因结构、进化关系、时空表达情况和蛋白互作预测可为墨兰花发育的研究提供理论依据,对进一步揭示CsAP1-A基因在墨兰成花过程中的作用奠定基础。

关键词：墨兰 Cs AP1-A基因生物信息学表达分析花器官发育

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Novel potential XOD inhibitory peptides derived from Trachinotus ovatus:Isolation,identification and structure-function analysis

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Food Bioscience 2022年第3期47卷 383-393页

作者： Mengfan Hou Huan Xiang Xiao Hu Shengjun Chen Yanyan Wu jiachao Xu Xianqing yang Key Laboratory of Aquatic Product Processing Ministry of Agriculture and RuralSouth China Sea Fisheries Research InstituteChinese Academy of Fishery SciencesGuangzhou510300China Co-Innovation Center of Jiangsu Marine Bio-industry Technology Jiangsu Ocean UniversityLianyungang222005China College of Food Science and Engineering Ocean University of ChinaQingdao266003China Collaborative Innovation Center of Provincial and Ministerial Co-construction for Marine Food Deep Processing Dalian116034China

This study aimed to isolate and identify the novel potential Xanthine oxidase(XOD)inhibitory peptides derived from Trachinotus ovatus hydrolysate(TOH)(hydrolysis by neutral protease),and investigate their structure-function relationship.Initially,TOH was separated to four fractions(F1–F4)by gel filtration chromatography and F4 was chosen with higher XOD inhibitory rate(85.16%±0.566,25 mg/mL)and lower molecular weight(95.73%,<1000 Da).F4 was further characterized by reversed-phase high performance liquid chromatography(RP-HPLC)coupled with Nano-HPLC-MS/MS and four peptides(FPAW,LLPW,WLLP and FHLP)were identified with IC50 value of 3.81±0.18 mM,4.17±0.12 mM,43.06±0.73 mM,and over 50.00 mM respectively.It can be concluded that Trp-containing peptides especially located in C-terminal could inhibit XOD effectively.Moreover,the XOD-inhibiting actions of these peptides involvedπ-πstacking(Phe914 and Phe1009 in XOD),hydrogen bonding via molecular docking.Lineweaver-Burk equation showed the inhibition type of FPAW was a mixed inhibition.Circular dichroism(CD)spectra indicated FPAW could combine and change the secondary structure of XOD.Therefore,two peptides of FPAW and LLPW might have potential to be used to alleviate hyperuricemia in the future.

关键词： Trachinotus ovatus XOD inhibitory Activity Trp-containing peptides Nano-HPLC-MS/MS Molecular docking

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A trade-off between space exploration and mobilization of organic phosphorus through associated microbiomes enables niche differentiation of arbuscular mycorrhizal fungi on the same root

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Science China(Life Sciences) 2023年第6期66卷 1426-1439页

作者： jiachao Zhou Thomas W Kuyper Gu Feng College of Resources and Environmental Sciences China Agricultural UniversityBeijing100193China Soil Biology Group Wageningen University&ResearchWageningen6700 AAThe Netherlands

Ecology seeks to explain species coexistence,but experimental tests of mechanisms for coexistence are difficult to conduct.We synthesized an arbuscular mycorrhizal(AM)fungal community with three fungal species that differed in their capacity of foraging for orthophosphate(P)due to differences in soil exploration.We tested whether AM fungal species-specific hyphosphere bacterial assemblages recruited by hyphal exudates enabled differentiation among the fungi in the capacity of mobilizing soil organic P(P_(o)).We found that the less efficient space explorer,Gigaspora margarita,obtained less ^(13)C from the plant,whereas it had higher efficiencies in P_(o)mobilization and alkaline phosphatase(Al Pase)production per unit C than the two efficient space explorers,Rhizophagusintraradices and Funneliformis mosseae.Each AM fungus was associated with a distinct alp gene harboring bacterial assemblage,and the alp gene abundance and P_(o)preference of the microbiome associated with the less efficient space explorer were higher than those of the two other species.We conclude that the traits of AM fungal associated bacterial consortia cause niche differentiation.The trade-off between foraging ability and the ability to recruit effective P_(o)mobilizing microbiomes is a mechanism that allows co-existence of AM fungal species in a single plant root and surrounding soil habitat.

关键词： arbuscular mycorrhizal fungi carbon space exploration hyphosphere bacterial assemblages organic phosphorus mobilization

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