检索结果-南通市图书馆

Boron doped graphdiyne:A metal-free peroxidase mimetic nanozyme for antibacterial application

Nano Research 2022年第2期15卷 1446-1454页

作者： Xuelong Bi Qiang Bai Lina Wang Fanglin Du Manhong Liu William W.Yu Siheng Li Jiaqiang Li Zhiling Zhu ning sui Jin Zhang College of Materials Science and Engineering Qingdao University of Science and TechnologyQingdao 266042China Center for Natiochemistry Beijing Science and Engineering Center for NanocarbonsNational Laboratory for Molecular SciencesCollege ofChemistry and Molecular EngineeringPeking UniversityBeijing 100871China College of Environment and Safety Engineering Qingdao University of Science and TechnologyQingdao 266042China Department of Chemistry and Physics Louisiana State University ShreveportOne University PlaceShreveportLA 71115USA Department of Chemistry University of HoustonHoustonTX 77204USA

The abuse of conventional antibiotics leads to increasing bacterial *** is a new kind of ultra-efficient and safe nanomaterial with intrinsic enzyme-like activities,showing remarkable potential as a next generation ***(GDY)is a burgeoning two-dimensional(2D)carbon allotrope with intriguing physicochemical properties,holding a great promise as a metal-free *** this study,a boron doped GDY nanosheet(B-GDY)was constructed to simulate the performance of peroxidase(POD).By promoting the decomposition of H_(2)O_(2) to produce reactive oxygen species(ROS),the bactericidal efficacies against both Gram-positive and Gram-negative bacteria were substantially enhanced attributed to the extremely high catalytic activity of ***-depth density functional theory(DFT)calculations illuminate that doping of boron can introduce more active B-defect sites as well as lower Gibbs free energy during the H_(2)O_(2) decomposition ***,B-GDY contributes to significant wound healing and excellent biocompatibility,reducing the biological *** design of this nanozyme opens a new avenue for the development of alternative antibiotics.

关键词： graphdiyne nanozyme metal-free antibacterial wound healing

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

π-Conjugated Unit-Dependent Optical Properties of Linear Conjugated Oligomers

引用

Chinese Journal of Chemical Physics 2014年第3期27卷 315-320页

作者： ning sui Lu Zou Yun-fei Song Qiu-lin Zhong Ying-hui Wang Xiao-gang Wei Zeng-bin Wang Yu-guang Ma Yan-qiang Yang Han-zhuang Zhang Femtosecond Laser Laboratory College of Physics Jilin University Changchun 130012 China Quantum Enginerring Center Beingjing Institute of Control Device Beijing 100854 China State Key Laboratory of Supramolecular Structure and Materials Jilin University Changchun 130012 China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun 130012 China Department of Physics Harbin Institute of Technique Harbin 150000 China

The optical properties of three linear conjugated oligomers （F-P, F-P-F, and P-F-P-F-P）, where phenothiazine （P） and fluorene （F） groups arrange alternately, are investigated. With the enhancement of the π-conjugated system, their absorption and emission bands both gradually red shift, and their two-photon properties are also improved. Meanwhile, their fluorescence dynamic traces are analyzed with continuous rate distribution model, exhibiting that their decay rates gradually accelerate and the rate distribution width become narrower. The quantum chemical calculation offers their molecular structures and transition mechanism, showing that the enhancement of π-conjugated system should be responsible for tile improvement of two-photon properties.

关键词： Oligomer Z-scan Fluorescence dynamics

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advancements in nutritional diagnosis and support strategies during the perioperative period for patients with liver cancer

引用

World Journal of Gastrointestinal Surgery 2024年第8期16卷 2409-2425页

作者： Xiao-Qin Li Yun Liang Chen-Feng Huang sui-ning Li Lei Cheng Chuan You Yao-Xia Liu Tao Wang Department of Hepatobiliary Surgery The Affiliated Hospital of North Sichuan Medical CollegeNanchong 637000Sichuan ProvinceChina Department of Paediatric Surgery The Affiliated Hospital of North Sichuan Medical CollegeNanchong 637000Sichuan ProvinceChina Department of Cardiovascular Surgery The First Affiliated HospitalJinan UniversityGuangzhou 510632Guangdong ProvinceChina Department of Geriatric Endocrinology Sichuan Provincial People's HospitalUniversity of Electronic Science and Technology of ChinaChengdu 610072Sichuan ProvinceChina Department of Pediatric Cardiology West China Second University HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Pediatrics Key Laboratory of Birth Defects and Related Diseases of Women and Children(Sichuan University)Ministry of EducationChengdu 610041Sichuan ProvinceChina

Liver cancer represents a grave hepatic condition and constitutes a significant global health *** resection remains the principal therapeutic modality for liver ***,perioperative malnutrition exerts a notable impact on patients with liver cancer,emerging as an independent risk factor for disease mortality and adverse ***,precise nutritional diagnosis and timely nutritional support hold the potential to enhance therapeutic efficacy and quality of life for liver cancer *** study represents a meticulous foray into the literature,extracting data from PubMed,Web of Science,and EMBASE databases,with a focus on the past 5 *** scrutinizes the impact of malnutrition on patients undergoing liver cancer surgery,the etiological underpinnings of malnutrition within this patient cohort,the critical assessment of perioperative nutritional status,and the strategic approaches to nutritional *** rigorous inclusion and exclusion criteria,the amassed scholarly works are meticulously synthesized,methodically organized,and categorically elaborated ***,the authors propose the incorporation of a multidisciplinary nutrition management team during the perioperative period,comprising nutritionists,pharmacists,physicians,nurses,psychologists,and rehabilitation therapists,among other specialized ***,they collaborate to devise and implement personalized nutritional support plans,monitor patients’nutritional status,and make necessary adjustments as *** comprehensive management and intervention,improvements in the nutritional status of liver cancer patients can be achieved,thereby enhancing surgical success rates and facilitating postoperative *** is believed that this manuscript will offer valuable insights to advance the nutritional management during the perioperative phase of liver cancer,aiding in ameliorating patients'nutritional status and treatment outcomes.

关键词： Liver cancer Nutritional diagnosis Nutritional support Perioperative period Genetic testing Immunonutrition Probiotics and gut microbiota

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Studying the charge carrier properties in CuInS_2 films via femtosecond transient absorption and nanosecond transient photocurrents

引用

Chinese Physics B 2019年第5期28卷 222-225页

作者： Mingrui Tan Qinghui Liu ning sui Zhihui Kang Liquan Zhang Hanzhuang Zhang Wenquan Wang Qiang Zhou Yinghui Wang Femtosecond Laser Laboratory Key Laboratory of Physics and Technology for Advanced Batteries College of PhysicsJilin University State Key Laboratory of Superhard Materials College of Physics Jilin University

The carrier behavior in CuInS_2 thin films at femtosecond and microsecond time scales is discussed in detail. Transient absorption data suggests that the photo-generated carriers relax rapidly accompanied by a change in energy. The photogenerated charge carriers are extracted by a bias electric field E in the nanosecond transient photocurrent system. An applied E improves the efficiency of photon conversion to charge carriers and enhances the velocity of the extracted charge carriers. In addition, there exists a threshold of illumination intensity in the extraction process of charge carriers in the CuInS_2 thin film, above which carrier recombination occurs. The corresponding loss further increases with illumination intensity and the recombination rate is almost independent of E. Our results provide useful insights into the characteristics of carriers in the CuInS_2 thin film and are important for the operation of optoelectronic devices realized with these films.

关键词： semiconductor film carrier dynamics transient absorption transient photocurrent

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Screening of the Optimal Potassium Fertilization Rate for Maximizing Bulb Yield and Potassium Nutrient Evaluation in Fritillaria thunbergii Miq.

引用

Clinical Complementary Medicine and Pharmacology 2021年第1期1卷 18-27页

作者： Leran Wang Jingyi Sun Guoyin Kai ning sui School of Pharmaceutical Sciences Zhejiang Chinese Medical UniversityHangzhou 310053China

Background:The dry bulb of Fritillaria thunbergii *** a traditional Chinese medicine,and is the leading product of the geo-authentic crude drugs‘Zhebawei’in Zhejiang *** thunbergii requires more potassium(K)than nitrogen and phosphorus,while the response of *** to K has rarely been *** and Methods:To evaluate the K nutritional status of ***,a 2-year field experiment was conducted under six K application rates(0,40,80,120,160,and 200 kg K_(2)O ha−1)with two *** cultivars(ZB1,narrow-leaf;ZB2,broad-leaf).Results:The bulbus Fritillariae Thunbergii(BFT)yield increased to a plateau with more than~120 kg K_(2)O *** BFT quality met the standard of Pharmacopoeia of *** with more than 40.0 kg K_(2)O ha^(-1).Leaf K concentration was significantly correlated with BFT yield,and was more sensitive to K application rate as compared to those of stems and *** application extended the duration of rapid leaf-biomass accumulation and increased the accumulation *** cultivars had similar response patterns to K application,but ZB2 had higher K partial productivity,leaf-biomass,and leaf K concentration than ***:108.4-128.0 kg K_(2)O ha^(-1) was the optimal K application range for BFT *** potassium nutrition index(KNI)model established based on leaf K concentration has biological significance and can be used for dynamic diagnosis of K nutritional status of *** with both accuracy and simplicity.

关键词： Chinese medicine Fritillaria thunbergii Miq.potassium application yield leaf nutrient evaluation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photoluminescence Characteristics of ZnCuInS-ZnS Core-Shell Semiconductor Nanocrystals

引用

Chinese Physics Letters 2017年第4期34卷 104-107页

作者： Qiu-Lin Zhong Ming-Rui Tan Qing-Hui Liu ning sui Ke Bi Mou-Cui Ni Ying-Hui Wang Han-Zhuang Zhang Key Laboratory of Physics and Technology for Advanced Batteries(Ministry of Education) College of Physics Jilin UniversityChangchun 130012

The photoluminescence （PL） characteristics of ZnCuInS quantum dots （Q, Ds） with varying ZnS shell thicknesses of O, 0.5, and 1.5 layers are investigated systemically by time-correlated single-photon counting measurements and temperature-dependent PL measurements. The results show that a ZnS shell thickness of 1.5 layers can effectively improve the PL quantum yield in one order of magnitude by depressing the surface trapping states of the core ZnCuInS QDs at room temperature. However, the PL measurements at the elevated temperature reveal that the core-shell nanocrystals remain temperature-sensitive with respect to their relatively thin shells. The temperature sensitivity of these small-sized single-layered core-shell nanocrystals may find applications as effective thermometers for the in vivo detection of biological reactions within cells.

关键词： In QDs ZnS Photoluminescence Characteristics of ZnCuInS-ZnS Core-Shell Semiconductor Nanocrystals

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

应用REST技术的GML数据管理

引用

中国有色金属学报 2012年第3期22卷 954-960页

作者：张山山吴宝佑隋宁宁秦瑞中南大学有色金属成矿预测教育部重点实验室长沙410083 中南大学地球科学与信息物理学院长沙410083

地理标记语言(GML)作为使用XML信息编码来表达地理数据的标准,其主要目的是实现数据共享与互操作。随着GML广泛应用,GML数据存储管理成为研究热点。面向服务架构(SOA)已经广泛应用于地理信息服务,表述性状态转移(REST)作为一种专门为分... 详细信息

地理标记语言(GML)作为使用XML信息编码来表达地理数据的标准,其主要目的是实现数据共享与互操作。随着GML广泛应用,GML数据存储管理成为研究热点。面向服务架构(SOA)已经广泛应用于地理信息服务,表述性状态转移(REST)作为一种专门为分布式调用而设计的轻量级架构技术,在构建SOA方面有着明显的优势。论文采用对象数据库对GML进行存储管理,探讨如何利用REST架构技术实现GML空间数据的管理与共享。分析了REST架构的关键技术,设计了GML数据管理服务框架。详细论述了基于微软WCF框架的REST API的实现过程,最后实现了一个调用GML数据管理服务的数据管理系统。通过客户端实例验证表明REST适合于GML地理数据的管理与共享。

关键词：面向服务架构表述性状态转移地理标记语言数据管理

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Oxidative phosphorylation safeguards pluripotency via UDP-N-acetylglucosamine

引用

Protein & Cell 2023年第5期14卷 376-381页

作者： Jiani Cao Meng Li Kun Liu Xingxing Shi ning sui Yuchen Yao Xiaojing Wang Shiyu Li Yuchang Tian Shaojing Tan Qian Zhao Liang Wang Xiahua Chai Lin Zhang Chong Liu Xing Li Zhijie Chang Dong Li Tongbiao Zhao State Key Laboratory of Stem Cell and Reproductive Biology Institute for Stem Cell and RegenerationInstitute of ZoologyChinese Academy of SciencesBeijing 100101China State Key Laboratory of Membrane Biology School of MedicineCenter for Synthetic and Systems BiologyTsinghua UniversityBeijing 100084China Beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China National Laboratory of Biomacromolecules CAS Center for Excellence in BiomacromoleculesInstitute of BiophysicsChinese Academy of SciencesBeijing 100101China Qufu Normal University Qufu 273165China University of Chinese Academy of Sciences Beijing 100049China

Dear Editor,Embryonic stem cells(ESCs)have been assumed to possess immature mitochondria and to favor anaerobic glycolysis over oxidative phosphorylation(OXPHOS)for energy *** proposition is largely based on the findings that ESCs possess globular mitochondria with blurred cristae,and the facts that ESCs have higher glycolysis activity and lower mitochondrial respiration capacity than somatic cells(Kondoh et al.,2007;Folmes et al.,2011,2012;Zhang et al.,2012;Xu et al.,2013;Ito and Suda,2014;Gu et al.,2016).However,recent studies have shown that mitochondrial autophagy and mitochondrial dynamics are pivotal for ESC self-renewal and pluripotency(Todd et al.,2010;Liu et al.,2016,2020;Wang et al.,2019;Zhong et al.,2019).These studies have raised a fundamental question:what is the contribution and functional mechanism of mitochondrial respiration in pluripotency regulation?

关键词： Kondo phosphorylation raised

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Scanning the energy dissipation process of energetic materials based on excited state relaxation and vibration–vibration coupling

引用

Chinese Physics B 2018年第10期27卷 341-345页

作者： Wen-Yan Wang ning sui Li-Quan Zhang Ying-Hui Wang Lin Wang Quan Wang Jiao Wang Zhi-Hui Kang Yan-Qiang Yang Qiang Zhou Han-Zhuang Zhang Femtosecond Laser Laboratory Key Laboratory of Physics and Technology for Advanced Batteries（Ministry of Education）College of PhysicsJilin UniversityChangchun 130012China State Key Laboratory of Superhard Materials College of PhysicsJilin UniversityChangchun 130012China National Key Laboratory of Shock Wave and Detonation Physics Institute of Fluid PhysicsChina Academy of Engineering PhysicsMianyang 621900China

The energy dissipation mechanism of energetic materials（EMs） is very important for keeping safety. We choose nitrobenzene as a model of EM and employ transient absorption（TA） spectroscopy and time-resolved coherent anti-stokes Raman scattering（CARS） to clarify its energy dissipation mechanism. The TA data confirms that the excited nitrobenzene spends about 16 ps finishing the twist intramolecular charge transfer from benzene to nitro group, and dissipates its energy through the rapid vibration relaxation in the initial excited state. And then the dynamics of vibrational modes（VMs） in the ground state of nitrobenzene, which are located at 682 cm^-1（v1）, 854 cm^-1（v2）, 1006 cm^-1（v3）, and 1023 cm^-1（v4）,is scanned by CARS. It exhibits that the excess energy of nitrobenzene on the ground state would further dissipate through intramolecular vibrational redistribution based on the vibrational cooling of vi and v2 modes, v1 and v4 modes, and v3 and v4 modes. Moreover, the vibration-vibration coupling depends not only on the energy levels of VMs, but also on the spatial position of chemical bonds relative to the VM.

关键词： energy dissipation charge transfer transient absorption coherent anti-stokes Raman scattering(CARS)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

超声波对纸板用大豆蛋白胶黏剂性能的影响

引用

北京化工大学学报（自然科学版） 2010年第5期37卷 115-119页

作者：隋宁杨光杨波上海理工大学医疗器械与食品学院上海200093

研究了超声波辅助尿素改性大豆蛋白黏接单面涂布白板纸的最佳工艺。单因素试验和正交试验结果表明:处理温度对改性大豆蛋白胶的胶黏强度影响最大,依次是尿素浓度、蛋白质质量分数和处理时间,超声处理时间影响最小,改性后胶黏强度有所提... 详细信息

研究了超声波辅助尿素改性大豆蛋白黏接单面涂布白板纸的最佳工艺。单因素试验和正交试验结果表明:处理温度对改性大豆蛋白胶的胶黏强度影响最大,依次是尿素浓度、蛋白质质量分数和处理时间,超声处理时间影响最小,改性后胶黏强度有所提高。最佳工艺条件:加热起始温度60℃、尿素浓度5 mol/L、蛋白质质量分数14%、处理时间3 h、超声处理时间20min,测得其胶黏强度为0.78513MPa。

关键词：大豆蛋白质胶黏剂超声波纸板

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：