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Tuning electronic structure ofδ-MnO_(2) by the alkali-ion(K,Na,Li)associated manganese vacancies for high-rate supercapacitors

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Journal of Energy Chemistry 2021年第5期30卷 245-258页

作者： Lengyuan Niu Lijin Yan Zhengwei Lu Yinyan Gong Taiqiang Chen Can Li xinjuan liu Shiqing Xu College of Optical and Electronic Technology China Jiliang UniversityHangzhou 311018ZhejiangChina College of Materials and Chemistry China Jiliang UniversityHangzhou 310018ZhejiangChina

Cation vacancies can bring numerous surprising characters due to its multifarious electron and orbit *** this work,d-MnO_(2) with alkali-ion(K,Na,Li)associated manganese(Mn)vacancies is fabricated by a simple hydrothermal reaction,and the correlation between their electronic structure and pseudocapacitance are systematically ***/TEM images have shown that the morphology of MnO_(2) is obviously changed after the introducing of cation *** position of alkali-ion in MnO_(2) structure can be controlled by adjusting the ion *** patterns and Raman spectra demonstrate that the alkali-ion is embedded in Mn vacancies at low concentration,while entered the interlayer of MnO_(2) at high *** existence of Mn vacancies will resulting in the distortion of neighboring atoms,leading to the electronic delocalization,and thus enhancing the conductivity,pseudocapacitance and rate capability of MnO_(2).Accordingly,the specific capacitances of optimized 0.4 KMO,0.4 NaMO and 0.4 LiMO samples are enhanced about 1.9,1.6 and 1.6 times compared to pure MnO_(2).Meanwhile,the rate performance has also been improved about 76%,46%and 42%,*** calculations further confirm that the Mn vacancies can generate additional occupancy states and cause an increase in carrier concentration,which will improve the conductivity and further boost the pseudocapacitance of MnO_(2).This result open up a promising approach to explore active and durable electrode materials.

关键词： Supercapacitor Manganese oxide Manganese vacancies Pseudocapacitance

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Decreased Amino Acid Transporter LAT2 Is the Main Determinant of Impaired Protein Utilization During Aging

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ENGINEERING 2024年第11期42卷 88-98页

作者： Song, Rui Li, Guang Zhao, Liang Qiu, Lili Qin, Xiyu Zhang, Xiaoxu liu, Xiaoxue Zhou, Jun Hu, Mengxiao Zhang, Liwei Su, Jiaqi liu, xinjuan Wang, Xiaoyu China Agr Univ Dept Nutr & Hlth Beijing 100083 Peoples R China Capital Med Univ Beijing Chao Yang Hosp Dept Gastroenterol Beijing 100069 Peoples R China Swiss Fed Inst Technol Dept Hlth Sci & Technol CH-8092 Zurich Switzerland

As the global demographic shifts toward an aging population, understanding the efficiency of protein utilization in older adults becomes crucial. Our study explores the intricate relationship between protein intake and aging, with a focus on precision nutrition for older people. Through a meta-analysis, we confirm a decline in protein-utilization capacity in older individuals and examine the different contributions of plant and animal protein. In experiments involving mice of different ages, older mice exhibited decreases in the biological utilization of four proteins (casein, beef protein, soy protein, and gluten), particularly casein. In subsequent research, casein was studied as a key protein. A decline in gastric digestion function was observed through peptidomics and the examination of pepsin levels using casein. Nevertheless, this decline did not significantly affect the overall protein digestion during the aging process. The combined application of targeted amino acid metabolomics identified abnormal absorption of amino acids as the underlying cause of decreased protein utilization during aging, particularly emphasizing a reduction in branched-chain amino acids (BCAAs) in older mice. Delving deeper into the proteomics of the intestinal protein digestion and absorption pathway, a reduction of over 60% in large neutral amino acid transporter 2 (LAT2) protein expression was observed in both older humans and aged mice. The reduction in LAT2 protein was found to be a key factor influencing the diminished BCAA availability. Overall, our study establishes the significance of amino acid absorption through LAT2 in protein utilization during aging and offers a new theoretical foundation for improving protein utilization in the older adults. (c) 2024 THE AUTHORS. Published by Elsevier LTD on behalf of Chinese Academy of Engineering and Higher Education Press Limited Company. This is an open access article under the CC BY-NC-ND license (http://***/license

关键词： Aging Protein utilization Peptide Amino acid Large neutral amino acid transporter 2

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MoSe2/ZnO/ZnSe hybrids for efficient Cr（Ⅵ） reduction under visible light irradiation

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Chinese Journal of Catalysis 2020年第1期41卷 180-187页

作者： Zhenxing Ren xinjuan liu Zhihao Zhuge Yinyan Gong Chang QSun Institute of Applied Chemistry Shanxi UniversityTaiyuan 030006ShanxiChina Institute of Optoelectronic Materials and Devices College of Optical and Electronic TechnologyChina Jiliang UniversityHangzhou 310018ZhejiangChina School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore

Photocatalysis activated by visible light remains highly ***,we report novel MoSe2/ZnO/ZnSe(ZM)hybrids fabricated via a simple hydrothermal method for photocatalytic reduction of Cr(VI)under visible light *** hybrids show improved photocatalytic reduction ability under visible light irradiation compared to pure ZnO owing to good visible light absorption and rapid electron transfer and *** ZM hybrid shows the highest Cr(VI)reduction rate of 100%.Moreover,the photocatalytic Cr(VI)reduction process is mainly controlled by photoinduced electrons.

关键词： Transition metal dichalcogenides MoSe2 ZnO ZnSe Cr(VI)

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Skin Rejuvenation in Aged Mice by Fecal Microbiota Transplantation from Young Mice Feces

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ENGINEERING 2024年第11期42卷 26-38页

作者： Yu, Shoujuan Li, Ziyang Zhang, Xiaoxu Zhang, Qi Zhang, Liwei Zhao, Liang liu, Ping Guo, Jie Chen, Juan Zhang, Chengying liu, xinjuan Yu, Mengyang Jin, Dekui Wang, Xiaofeng Li, Guang Cao, Yan Ren, Fazheng Wang, Ran China Agr Univ Dept Nutr & Hlth Key Lab Funct Dairy Coconstructed Minist Educ & Beijing Govt Beijing 100193 Peoples R China China Agr Univ Adv Innovat Ctr Food Nutr & Human Hlth Dept Nutr & Hlth Beijing 100193 Peoples R China China Agr Univ Res Ctr Probiot Beijing 100083 Peoples R China Third Ctr Chinese PLA Gen Hosp Dept Gen Practice Beijing 100039 Peoples R China Capital Med Univ Beijing Chaoyang Hosp Dept Gastroenterol Beijing 100020 Peoples R China Third Ctr Chinese PLA Gen Hosp Dept Gastroenterol Beijing 100039 Peoples R China

Skin aging is an increasingly prominent topic in the context of healthy aging. During the aging process, the skin's barrier function diminishes, its water content decreases, wrinkles begin to form, and changes occur in the gut microbiota composition. However, the relationship between gut microbiota and skin aging remains unclear. In this study, we explored skin rejuvenation in aged mice through fecal microbiota transplantation (FMT) using feces from young mice. The results demonstrated enhanced water retention, thickened stratum corneum, increased collagen content, and improved epithelial cell differentiation in aged mice following FMT. Notably, FMT particularly increased the abundance of Lactobacillus and Lactococcus in aged mice, which were nearly undetectable in untreated aged mice. Non-targeted and targeted metabolomics analyses indicated that FMT significantly elevated levels of tryptophan (Trp) and its microbiota metabolites (e.g., indole-3-lactic acid (ILA)) in the feces and serum of aged mice. Both Trp and ILA appeared to rejuvenate aged skin by activating the aryl hydrocarbon receptor (AhR) to promote epidermal cell differentiation. In conclusion, FMT from young mice rejuvenated aged skin via Trp-metabolizing bacteria (Lactobacillus and Lactococcus) and Trp-derived metabolites, suggesting that interventions targeting Trp metabolites may effectively improve skin aging. (c) 2024 THE AUTHORS. Published by Elsevier LTD on behalf of Chinese Academy of Engineering and Higher Education Press Limited Company. This is an open access article under the CC BY-NC-ND license (http://***/licenses/by-nc-nd/4.0/).

关键词： Skin aging FMT Tryptophan Indole-3-lactic acid AhR Epidermal differentiation

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Differentiation between two healthcare concepts:Person-centered and patient-centered care

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International Journal of Nursing Sciences 2016年第4期3卷 398-402页

作者： Junqiang Zhao Shangqian Gao Jinfang Wang xinjuan liu Yufang Hao School of Nursing Beijing University of Chinese MedicineBeijingChina

*** Engel's biopsychosocial model,which was constructed in 1977,was considered a momentous breakthrough from the traditional biomedical model of medicine that regards the person as a disease-carrier requiring diagnosis and treatment[1]towards recognition of the whole person and furnish customized *** model argues that health should not be considered solely on biological factors but on a combination of biological,psychological,and social factors[2].This idea of considering individuals as a whole and respecting their rights to self-determination has led to a shift in the care model from disease-centered care to patient-centered or person-centered *** latter two care models are both abbreviated as *** that people are involved in and central to the healthcare process is now recognized as a key component in developing high-quality *** have revealed that both concepts of care can help improve people's health condition and lower health service ***,countries and healthcare organizations have been paying close attention to the patients'*** National Health Service in England has made person-centered care as one of its seven core principles[3].

关键词： centered Service service

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ZnIn_2S_4 flowerlike microspheres embedded with carbon quantum dots for efficient photocatalytic reduction of Cr(Ⅵ)

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Chinese Journal of Catalysis 2018年第12期39卷 1901-1909页

作者： Baibai liu xinjuan liu Lei Li Jianwei Li Can Li Yinyan Gong Lengyuan Niu Xinsheng Zhao Chang Q.Sun Institute of Coordination Bond Metrology and Engineering(CBME) College of Materials Science and EngineeringChina Jiliang UniversityHangzhou 310018ZhejiangChina Chongqing Key Laboratory of Extraordinary Coordination Bond and Advanced Materials Techniques(EBEAM) Yangtze Normal UniversityChongqing 408100China School of Physics and Electronic Engineering Jiangsu Normal UniversityXuzhou 221116JiangsuChina School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore

Development of efficient heterostructured photocatalysts that respond to visible light remains a considerable *** herein show the synthesis of ZnIn2S4/carbon quantum dot hybrid photocatalysts with flowerlike microspheres via a facile solvothermal *** ZnIn2S4/carbon quantum dot flowerlike microspheres display enhanced photocatalytic and photoelectrochemical activity compared with that of pure *** a content of only 0.5 wt%carbon quantum dots,93%of Cr(VI)is reduced under visible‐light irradiation at 40 *** a co‐catalyst,the carbon quantum dots improve the light absorption and lengthen the lifetime of charge carriers,consequently enhancing the photocatalytic and photoelectrochemical activity.

关键词： ZnIn2S4 Carbon quantum dots Flowerlike microspheres Co‐catalyst Photoelectronchemical

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Reduced graphene oxide-based composites synthesized via microwave-assisted reaction for the enhancement of photocatalysis

Reduced graphene oxide-based composites synthesized via micr...

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第十三届全国太阳能光化学与光催化学术会议

作者： xinjuan liu Tian Lv Likun Pan Zhuo Sun Changqing Sun Engineering Research Center for Nanophotonics & Advanced Instrument Ministry of EducationDepartment of PhysicsEast China Normal University School of Electrical and Electronic Engineering Nanyang Technological University

TiO,ZnO and CdS have been proven to be a promising photocatalyst for widespread environmental ***,the quick recombination of photo-generated charge carriers has significantly decreased the photocatalytic *** is an emerging carbon material with a unique two-dimensional conjugated chemical structure,which has attracted a great deal of attention in recent years owing to its excellent conductivity,superior chemical stability and

关键词： ZnO TiO2 CdS Graphene Microwave-assisted reaction Photocatalysis

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Bandgap Modulation in CdSe by Size, Temperature, and Pressure

Bandgap Modulation in CdSe by Size, Temperature, and Pressur...

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中国第四届静电纺丝大会(CICE2016)

作者： Jianwei Li Jing Guo Xinsheng Zhao Xuexian Yang xinjuan liu School of Physics and Electronic Engineering Jiangsu Normal University Department of Physics Jishou University Center for Coordination Bond and Electronic Engineering College of Materials Science and EngineeringChina Jiliang University

＜正＞The band gap（EG）of semiconductors is an important physical property determining such photoelectric behavior as intrinsic conductivity,photoluminescence,and thephotoabsorption ofnanoscale *** band gap of nano-semiconductors is tunable with the size and under external stimulus such as pressure and temperature,and related mechanisms remain as yet *** effect of crystal size,and pressure,temperature on the bandgap of

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Coordination-resolved scoping of local bond relaxation and electron binding-energy shift

Coordination-resolved scoping of local bond relaxation and e...

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第十三届全国物理力学学术会议

作者： xinjuan liu Maolin Bo Yan Wang Zengsheng Ma Chang Q Sun MSE/XTU China EEE/NTU Singapore

Probing the coordination-resolved information of electron binding energy pertaining to point defects,terrace edges,monolayer skins,and hetero-junction interfaces has long been the"bottleneck"in the communities of Condensed Matter Physics,Solid State Chemistry,and Materials *** this presentation,I will share that an innovation of the photoelectron spectroscopy(PES)and the associated theory could meet

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产出导向法应用于高等职业院校大学英语读写教学的实证研究

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江苏高职教育 2021年第3期21卷 77-84页

作者：刘欣娟南京工业职业技术大学公共基础课部江苏南京210023

产出导向法的提出和应用为解决大学英语读写分离的困境找到了出路。但有研究表明,产出导向法由于过程复杂,且对学习者的英语水平要求较高,因而对英语水平不高的学生而言效果存疑。基于以某高职院校学生为研究对象、运用产出导向法的一... 详细信息

产出导向法的提出和应用为解决大学英语读写分离的困境找到了出路。但有研究表明,产出导向法由于过程复杂,且对学习者的英语水平要求较高,因而对英语水平不高的学生而言效果存疑。基于以某高职院校学生为研究对象、运用产出导向法的一次实验结果,重点关注了该理论体系评价环节中适合该群体的评价方式,指出师生合作共评应作为该理论体系应用于高职院学生群体时的主要评价方式。

关键词：大学英语读写产出导向法师生合作共评

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