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Exfoliation of bulk 2H-MoS_(2)into bilayer 1T-phase nanosheets via ether-induced superlattices

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Nano Research 2024年第6期17卷 5705-5711页

作者： Xiuling Shi Dongmei Lin Zhuorui Xiao Yibo Weng Hanxiang Zhou Xiaoying Long Zhiyu Ding Fuyuan Liang Yan huang Guohua Chen Kaikai Li tong-Yi Zhang School of Materials Science and Engineering Harbin Institute of TechnologyShenzhen 518055China Department of Mechanical Engineering Research Institute for Smart EnergyThe Hong Kong Polytechnic UniversityHong KongChina School of Energy and Environment City University of Hong KongTat Chee AvenueKowloonHong KongChina The Hong Kong University of Science and Technology(Guangzhou) Guangzhou Municipal Key Laboratory of Materials InformaticsAdvanced Materials Thrust and Sustainable Energy and Environment ThrustNanshaGuangzhou 511400China

The exfoliation of bulk 2H-molybdenum disulfide(2H-MoS_(2))into few-layer nanosheets with 1T-phase and controlled layers represents a daunting challenge towards the device applications of MoS_(2).Conventional ion intercalation assisted exfoliation needs the use of hazardous n-butyllithium and/or elaborate control of the intercalation potential to avoid the decomposition of the MoS_(2).This work reports a facile strategy by intercalating Li ions electrochemically with ether-based electrolyte into the van der Waals(vdW)channels of MoS_(2),which successfully avoids the decomposition of MoS_(2)at low *** co-intercalation of Li+and the ether solvent into MoS_(2)makes a first-order phase transformation,forming a superlattice phase,which preserves the layered structure and hence enables the exfoliation of bulk 2H-MoS_(2)into bilayer nanosheets with *** with the pristine 2H-MoS_(2),the bilayer 1T-MoS_(2)nanosheets exhibit better electrocatalytic performance for the hydrogen evolution reaction(HER).This facile method should be easily extended to the exfoliation of various transition metal dichalcogenides(TMDs).

关键词： exfoliation of MoS_(2) phase transformations superlattices ether electrolyte hydrogen evolution reaction(HER)

Identification of Effects on PD-1 and Tim-3 Expressions and Function of T Lymphocytes in Tumor(bearing Mice by RFA

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Identification of Effects on PD-1 and Tim-3 Expressions and ...

Enhancing low-resource cross-lingual summarization from noisy data with fine-grained reinforcement learning

中国超声医学工程学会第五届全国介入超声医学学术交流大会

作者： Ming Xu tong yi huang Xiao yan Xie Department of Medical Ultrasound the First Affiliated HospitalInstitute of Diagnostic and Interventional UltrasoundSun Yat(Sen University

Objective (To investigate the dynamic changes of immune function in patients with colorectal metastatic liver cancer after RFA, and try to explain the evolution of anti(tumor immune response after RFA from the perspective of T cell function *** and Methods (Mouse models of BALB/C mice bearing dual colorectal cancer on their backs were established and randomly divided into ablation group and control group. The tumor on the right side was ablated and the growth of the contralateral tumor was observed by means of vernier caliper, ultrasonography and pathological examination. T lymphocytes of blood, spleen, and tumor infiltrating T cells(TILs) were harvested, and immune checkpoints(PD(1, Tim-3) on them at different times after ablation, as well as T cell function of secreting cytokines were measured by flow cytometry, immunofluorescence and *** (At the early stage after RFA treatment, a slight stagnation of the contralateral tumor was observed in the contralateral tumor, and the tumor volume was observed to be the smallest on the 3 rd day, and then the rapid growth was *** percentage of total TILs, CD8+ and CD4+ TILs in contralateral tumors was higher than that in the control group at 3, 9, and 12 days after ablation. PD-1 and Tim-3 were highly expressed on TILs, and there was no significant difference in the expression level of PD-1 and Tim-3 in control groups at different times. The levels of PD-l+CD8+TILs, Tim-3+CD8+TILs and PD-l+Tim+CD8+TILs in the ablated group decreased to a minimum of about 50% compared with the control group on the 3rd day, and then began to rise, being close to or exceeding the control group level on the 12th *** I usion (: RFA can enhance the anti(tumor immunity of organism in the early 3 days, with inhibited tumor growth, increased percentage of TILs and remarkable decrease of PD-1 and Tim-3 expression on CD8+TILs.

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Frontiers of Information Technology & Electronic Engineering 2024年第1期25卷 121-134页

作者： Yuxin huang Huailing GU Zhengtao YU Yumeng GAO tong PAN Jialong XU Faculty of Information Engineering and Automation Kunming University of Science and TechnologyKunming 650504China Yunnan Key Laboratory of Artificial Intelligence Kunming University of Science and TechnologyKunming 650504China

Cross-lingual summarization(CLS)is the task of generating a summary in a target language from a document in a source ***,end-to-end CLS models have achieved impressive results using large-scale,high-quality datasets typically constructed by translating monolingual summary corpora into CLS ***,due to the limited performance of low-resource language translation models,translation noise can seriously degrade the performance of these *** this paper,we propose a fine-grained reinforcement learning approach to address low-resource CLS based on noisy *** introduce the source language summary as a gold signal to alleviate the impact of the translated noisy target ***,we design a reinforcement reward by calculating the word correlation and word missing degree between the source language summary and the generated target language summary,and combine it with cross-entropy loss to optimize the CLS *** validate the performance of our proposed model,we construct Chinese-Vietnamese and Vietnamese-Chinese CLS *** results show that our proposed model outperforms the baselines in terms of both the ROUGE score and BERTScore.

关键词： Cross-lingual summarization Low-resource language Noisy data Fine-grained reinforcement learning Word correlation Word missing degree

Mimicking Mytilus edulis foot protein:A versatile strategy for robust biomedical coatings

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The Innovation 2024年第5期5卷 73-82,72页

作者： Zeyu Du Feng Qiao Liping tong Wentai Zhang Xiaohui Mou Xin Zhao Manfred FMaitz Huaiyu Wang Nan huang Zhilu Yang School of Materials Science and Engineering Department of CardiologyThird People’s Hospital of Chengdu Affiliated with Southwest Jiaotong UniversitySouthwest Jiaotong UniversityChengdu 610031China Dongguan Key Laboratory of Smart Biomaterials and Regenerative Medicine The Tenth Affiliated Hospital of Southern Medical UniversityDongguan 523059China Institute of Biomedicine and Biotechnology Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Department of Biomedical Engineering The Hong Kong Polytechnic UniversityHung HomHong KongChina Max Bergmann Center of Biomaterials Dresden Leibniz Institute of Polymer Research DresdenHohe Strasse 601069 DresdenGermany The Key Laboratory of Biomedical Imaging Science and System Chinese Academy of SciencesShenzhen 518055China GuangZhou Nanchuang Mount Everest Company for Medical Science and Technology Guangzhou 510670China

Universal coatings with versatile surface adhesion,good mechanochemical robustness,and the capacity for secondary modification are of great scientific ***,incorporating these advantages into a system is still a great ***,we report a series of catechol-decorated polyallylamines(CPAs),denoted as pseudo-Mytilus edulis foot protein 5(pseudoMefp-5),that mimic not only the catechol and amine groups but also the backbone of *** can fabricate highly adhesive,robust,multifunctional polyCPA(PCPA)coatings based on synergetic catechol-polyamine chemistry as universal building *** to the interpenetrating entangled network architectures,these coatings exhibit high chemical robustness against harsh conditions(HCl,pH 1;NaOH,pH 14;H2O2,30%),good mechanical robustness,and wear *** addition,PCPA coatings provide abundant grafting sites,enabling the fabrication of various functional surfaces through secondary ***,the versatility,multifaceted robustness,and scalability of PCPA coatings indicate their great potential for surface engineering,especially for withstanding harsh conditions in multipurpose biomedical applications.

关键词： wear catechol versatile

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聚酰胺螺旋纤维的多级自组装行为研究

化学学报 2016年第12期74卷 990-994页

作者：黄磊黄通白永平周永丰哈尔滨工业大学化工与化学学院哈尔滨150001 上海交通大学化学化工学院上海200240

以含聚异丙二醇(PPG)链段的聚醚胺和己二酸为原料,合成了温度响应性聚酰胺APA;FT-IR和GPC的结果表明合成产物具有酰胺结构的聚合物;Micro-DSC和变温紫外测试的结果表明,合成的APA具有33℃的最低临界互溶温度;TEM和AFM的结果表明当组装... 详细信息

以含聚异丙二醇(PPG)链段的聚醚胺和己二酸为原料,合成了温度响应性聚酰胺APA;FT-IR和GPC的结果表明合成产物具有酰胺结构的聚合物;Micro-DSC和变温紫外测试的结果表明,合成的APA具有33℃的最低临界互溶温度;TEM和AFM的结果表明当组装体溶液浓度为1 mg/m L时,APA在常温下可以组装成长纤维,其形成经历了"胶束-胶束多聚体-胶束融合-长纤维"等多级自组装过程.而当温度升为60℃,这些长纤维会转变为平均螺距为35 nm的螺旋纤维.螺旋纤维的形成本质上是当温度高于LCST时,APA纤维中的PPG链段坍塌,从而诱导纤维发生扭转,最终导致螺旋结构的出现.

关键词：温度响应性聚酰胺多级自组装螺旋纤维

Insights into ionic association boosting water oxidation activity and dynamic stability

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Journal of Energy Chemistry 2024年第2期89卷 99-109,I0004页

作者： Zanling huang Shuqi Zhu Yuan Duan Chaoran Pi Xuming Zhang Abebe Reda Woldu Jing-Xin Jian Paul K.Chu Qing-Xiao tong Liangsheng Hu Xiangdong Yao Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province Shantou UniversityShantou 515063GuangdongChina Chemistry and Chemical Engineering Guangdong Laboratory Shantou 515063GuangdongChina State Key Laboratory of Refractories and Metallurgy and Institute of Advanced Materials and Nanotechnology Wuhan University of Science and TechnologyWuhan 430081HubeiChina Department of Physics Department of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongTat Chee AvenueKowloonHong KongChina School of Advanced Energy Sun Yat-sen University(Shenzhen)Shenzhen 518107GuangdongChina

There have been reports about Fe ions boosting oxygen evolution reaction(OER)activity of Ni-based catalysts in alkaline conditions,while the origin and reason for the enhancement remains ***,we attempt to identify the activity improvement and discover that Ni sites act as a host to attract Fe(Ⅲ)to form Fe(Ni)(Ⅲ)binary centres,which serve as the dynamic sites to promote OER activity and stability by cyclical formation of intermediates(Fe(Ⅲ)→Fe(Ni)(Ⅲ)→Fe(Ni)-OH→Fe(Ni)-O→Fe(Ni)OOH→Fe(Ⅲ))at the electrode/electrolyte interface to emit O_(2).Additionally,some ions(Co(Ⅱ),Ni(Ⅱ),and Cr(Ⅲ))can also be the active sites to catalyze the OER process on a variety of *** Fe(Ⅲ)-catalyzed overall water-splitting electrolyzer comprising bare Ni foam as the anode and Pt/Ni-Mo as the cathode demonstrates robust stability for 1600 h at 1000 mA cm^(-2)@~1.75 *** results provide insights into the ioncatalyzed effects boosting OER performance.

关键词： Oxygen evolution reaction Fe(Ⅲ)-catalysis Ni-Fe binary active centers Ion-catalyzed effects Robust stability

Straw return influences the structure and functioning of arbuscular mycorrhizal fungal community in a rice-wheat rotation system

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Pedosphere 2024年第2期34卷 339-350页

作者： Silong ZHAI Junjie XIE Zongyi tong Bing YANG Weiping CHEN Roger TKOIDE Yali MENG Xiaomin huang Atta Mohi Ud DIN Changqing CHEN Haishui YANG College of Agriculture Nanjing Agricultural UniversityNanjing 210095China Department of Biology Brigham Young UniversityProvo UT 84602USA Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology Agricultural College of Yangzhou UniversityYangzhou 225009China National Research Center of Intercropping The Islamia University of BahawalpurBahawalpur 63100Pakistan Jiangsu Collaborative Innovation Center for Modern Crop Production Nanjing Agricultural UniversityNanjing 210095China

Straw return is a sustainable soil fertility-building practice,which can affect soil microbial ***,how straw return affects arbuscular mycorrhizal fungi(AMF)is not well ***,we studied the impacts of different straw management treatments over eight years on the structure and functioning of AMF communities in a rice-wheat rotation *** straw management treatments included no tillage with no straw(NTNS),rotary tillage straw return(RTSR),and ditch-buried straw return(DBSR).The community structure of AMF was characterized using high-throughput sequencing,and the mycorrhizal functioning was quantified using an in situ mycorrhizal-suppression *** straw management treatments formed unique AMF community structure,which was closely related to changes in soil total organic carbon,available phosphorus,total nitrogen,ammonium,and *** compared with NTNS,RTSR significantly increased Shannon diversity in 0–10 cm soil layer,while DBSR increased it in 10–20 cm soil layer;DBSR significantly increased hyphal length density in the whole ploughing layer(0–20 cm),but RTSR only increased it in the subsurface soil layer(10–20 cm).The mycorrhizal responses of shoot biomass and nutrient(N and P)uptake were positive under both straw return treatments(RTSR and DBSR),but negative under *** community composition of AMF was significantly correlated to hyphal length density,and the latter was further a positive predictor for the mycorrhizal responses of plant growth and nutrient *** findings suggest that straw return can affect AMF community structure and functioning,and farmers should manage mycorrhizas to strengthen their beneficial effects on crop production.

关键词： community structure hyphal length density shoot biomass shoot N uptake shoot P uptake soil physicochemical properties straw management tillage

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共情特质的神经生物学基础

心理科学进展 2016年第9期24卷 1368-1376页

作者：岳童黄希庭西南大学心理学与社会发展研究中心西南大学心理学部重庆400715

共情特质的个体差异是心理学研究领域中的一个重要主题。近些年来,研究者开始关注导致人们共情能力高低有别的神经生物学基础问题。研究发现,不论是情感共情特质还是认知共情特质,其个体差异均在大脑进行共情反应、脑结构态及静息态功... 详细信息

共情特质的个体差异是心理学研究领域中的一个重要主题。近些年来,研究者开始关注导致人们共情能力高低有别的神经生物学基础问题。研究发现,不论是情感共情特质还是认知共情特质,其个体差异均在大脑进行共情反应、脑结构态及静息态功能连接上有所体现。它们共同说明,人们的共情能力与其具身模仿能力,情感加工能力及情绪理解能力密切相关。不仅如此,共情特质也具有高度的可遗传性,一些基因类型与该能力存在着紧密的关系。在今后的研究中,需要扩展对共情特质结构的进一步认识,关注环境和基因在影响共情特质上存在的交互作用,并努力将理论研究成果应用于共情能力训练和提高的临床实践中。

关键词：共情特质脑机制脑结构静息态基因

Characteristics and Risk Factors for Pediatric Sepsis

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Current Medical Science 2024年第3期44卷 648-656页

作者： Yong-bing ZHU tong-lin LIU Qi DAI Shu-fan LIU Peng XIONG Hao huang Yi YUAN Tian-nan ZHANG Yu CHEN Department of Pediatric Intensive Care Unit Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China

Objective Sepsis is considered a major cause of health loss in children and had high mortality and ***,there is no reliable model for predicting the prognosis of pediatric patients with *** study aimed to analyze the clinical characteristics of sepsis in children and assess the risk factors associated with poor prognosis in pediatric sepsis patients to identify timely interventions and improve their *** This study analyzed the clinical indicators and laboratory results of septic patients hospitalized in the Pediatric Intensive Care Unit of tongji Hospital,tongji Medical College,Huazhong University of Science and Technology,China,from January 1,2019,to December 31,*** factors for sepsis were identified by logistic regression *** A total of 355 children with sepsis were enrolled,with 333 children(93.8%)in the good prognosis group,and 22 children(6.2%)in the poor prognosis *** them,there were 255 patients(71.8%)in the sepsis group,and 100 patients(28.2%)in the severe sepsis *** length of hospital stay in the poor prognosis group was longer than that in the good prognosis group(P0.05),and the platelet(PLT),albumin(ALB),and hemoglobin(Hb)levels were lower in the poor prognosis group(P<0.01).The IL-8 levels in the severe sepsis group were higher than those in the sepsis group(P<0.05).Multiple logistic regression analysis suggested that lower Hb levels,ALB levels,peak PLT counts,and higher IL-1βlevels were independent risk factors for poor prognosis in children with *** Lower Hb,ALB,and PLT counts and elevated IL-1βare independent risk factors for poor prognosis in children with sepsis.

关键词： pediatric sepsis inflammation severity prognosis risk factors