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一种新型口腔黏膜消毒液消毒相关性能观察

中国消毒学杂志 2024年第7期41卷 499-501,505页

作者：包卫华慈颖孙飏慈九正安伟高迪北京市疾病预防控制中心北京100013 中国检验检疫科学研究院火人京创(北京)医疗器材有限公司

目的观察一种口腔黏膜消毒液消毒相关性能,为实际使用提供科学依据。方法采用悬液定量杀菌试验和动物试验方法,对某口腔黏膜消毒剂消毒相关性能进行观察。结果该消毒液为电解产生,其原液含有效氯120 mg/L。该口腔黏膜消毒液原液作用10 ... 详细信息

目的观察一种口腔黏膜消毒液消毒相关性能,为实际使用提供科学依据。方法采用悬液定量杀菌试验和动物试验方法,对某口腔黏膜消毒剂消毒相关性能进行观察。结果该消毒液为电解产生,其原液含有效氯120 mg/L。该口腔黏膜消毒液原液作用10 s对悬液内大肠埃希菌、金黄色葡萄球菌、铜绿假单胞菌、变异链球菌、牙龈卟啉单胞菌、乙型溶血性链球菌、白念珠菌和幽门螺旋杆菌的平均杀灭对数值均>5.00;原液作用30 s对脊髓灰质炎病毒及肠道病毒71型的平均杀灭对数值均>4.00。原液对完整皮肤、破损皮肤均无刺激性,急性眼刺激试验强度为无刺激。结论该口腔黏膜消毒液对多种细菌繁殖体、病毒和真菌均有快速杀灭效果,属实际无毒级物质,对皮肤、黏膜无刺激。

关键词：电解技术口腔消毒液杀菌效果毒性

Research progress on preparation of cerium-based oxide catalysts with specific morphology and their application for purification of diesel engine exhaust

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Journal of Rare Earths 2024年第7期42卷 1187-1216,I0001页

作者： Chunlei Zhang Siyu gao di Yu Shengran Zhou Lanyi Wang Xuehua Yu Zhen Zhao Institute of Catalysis for Energy and Environment College of Chemistry and Chemical EngineeringShenyang Normal UniversityShenyang110034China State Key Laboratory of Heavy Oil Processing China University of PetroleumBejing102249China

The elimination of pollutants from diesel exhaust has received widespread research attention as they cause serious air pollution and pose a threat to human *** post-treatment technology is one of the most effective and universal technologies to treat diesel exhaust *** design and development of efficient and low-cost catalysts is the key factor to realize the wide application of catalytic post-treatment ***(Ce)-based oxides with specific morphologies are widely used to eliminate pollutants in diesel vehicle exhaust due to their unique physical and chemical properties,such as high catalytic activity,low cost and *** this review,the preparation methods of Cebased oxide materials with specific morphologies,such as nanoparticles,nanocubes,nanorods,nanofibers,and multi-stage pores,are introduced in detail,and the research progress on using these catalysts for the removal of carbon monoxide,hydrocarbons,soot particles,nitrogen oxides,and other pollutants from diesel exhaust is reviewed in ***,the unresolved issues associated with using Ce-based oxide catalysts with a specific morphology to catalytically remove pollutants from diesel exhaust are highlighted,and future application prospects and development directions are discussed.

关键词： Ce-based oxide catalysts dies elexhaust pollutants Specific morphology Catalytic purification Rare earths

Sequence stratigraphy, paleogeography, and coal accumulation regularity of major coal-accumulating periods in China

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International Journal of Coal Science & Technology 2020年第2期7卷 240-262页

作者： Longyi Shao Xuetian Wang Dongdong Wang Mingpei Li Shuai Wang Yingjiao Li Kai Shao Chao Zhang Caixia gao Daxiao Dong Aiguo Cheng Jing Lu Congwei Ji di gao State Key Laboratory of Coal Resources and Safe Mining College of Geoscience and Surveying EngineeringChina University of Mining and Technology(Beijing)Beijing 100083China College of Earth Science and Engineering Shandong University of Science and TechnologyQingdao 266590ShandongChina Innovation Technology Research Institute of Shaanxi Investment Group Co. Ltd.Xi'an 710061ShaanxiChina Shaanxi Coalbed Methane Development Company Limited Xi'an 710119ShaanxiChina China National Administration of Coal Geology Beijing 100039China College of Resources and Environment Henan Polytechnic UniversityJiaozuo 454003HenanChina

There are 9 major coal-accumulating periods during geological history in China,including the Early Carboniferous,Late Carboniferous-Early Permian,Middle Permian,Late Permian,Late Triassic,Early-Middle Jurassic,Early Cretaceous,Paleogene and *** coal formed in these periods were developed in different coal-accumulating areas(CAA)including the North China,South China,Northwest China,Northeast China,the Qinghai–Tibet area,and China offshore *** this paper,we investigated depositional environments,sequence stratigraphy,lithofacies paleogeography and coal accumulation pattern of five major coal-accumulating periods including the Late Carboniferous to Middle Permian of the North China CAA,the Late Permian of the South China CAA,the Late Triassic of the South China CAA,the Early-Middle Jurassic of the North and Northwest China CAA,and the Early Cretaceous in the Northeast China *** to distribution of the coal-bearing strata and the regional tectonic outlines,we have identified distribution range of the coal-forming basins,sedimentary facies types and coal-accumulating *** sequence stratigraphic frameworks of the major coal-accumulating periods were established based on recognition of a variety of sequence *** distribution of thick coals and migration patterns of the coal-accumulating centers in the sequence stratigraphic framework were *** lithofacies paleogeography maps based on third-order sequences were reconstructed and the distribution of coal accumulation centers and coal-rich belts were predicted.

关键词： Coal-accumulating period Coal-accumulating area Sequence stratigraphy Paleogeography China

Stigma-Specific Comparative Proteomic Analysis Reveals the distyly Response to Self-Incompatibility in Plumbago auriculata Lam

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Phyton-International Journal of Experimental Botany 2024年第4期93卷 681-697页

作者： di Hu Shouli Yi di Lin Suping gao Ting Lei Wenji Li Tingdan Xu Songlin Jiang School of Fine Arts and Calligraphy Sichuan Normal UniversityChengdu610000China Sichuan Certification and Accreditation Association Chengdu610000China College of Landscape Architecture Sichuan Agricultural UniversityChengdu610000China School of Design Chongqing Industry Polytechnic CollegeChongqing401120China

In plants,heteromorphic self-incompatibility(HetSI)is a strategy for avoiding self-pollination and promoting outcrossing,and during this process,numerous protein-protein interaction events occur between the pistil and *** studies in Primula and Fagopyrum that focused on HetSI systems have provided interesting insights;however,the molecular mechanism underlying HetSI remains largely *** this study,we profiled the proteome of Plumbago auriculata stigmas before and after self-incompatible(SI)and self-compatible(SC)*** analyses were conducted by 4D-diA(Four-dimensional data independent acquisition),a promising technology that increases the sensitivity and reduces the spectral complexity of proteomic analysis by adding a fourth dimension,ion *** results revealed 33387 peptides and 5311 proteins in all *** pathways in which the differentially expressed proteins(DEPs)identified in the P×P(Pin style self-pollinated with pin pollen)***(Pin style)and T×T(Thrum style self-pollinated with thrum pollen)***(Thrum style)comparisons were significantly enriched were biosynthesis of secondary metabolites and pentose and glucuronate *** the P×T(Pin style cross-pollinated with thrum pollen)*** and T×P(Thrum style cross-pollinated with pin pollen)*** comparison,the top three pathways were biosynthesis of secondary metabolites,pentose and glucuronate interconversions,and phenylpropanoid *** phenylpropanoid biosynthesis,cutin,suberine and wax biosynthesis,and flavonoid biosynthesis pathways were enriched in the P×T vs.P×P comparison,and starch and sucrose metabolism,glycerophospholipid metabolism,and alpha-linolenic acid metabolism were abundant in the T×T vs.T×P *** enriched pathways between PS and TS were the biosynthesis of secondary metabolites,phenylpropanoid biosynthesis,and pentose and glucuronate ***-incompatibility protein S1(SI S1),Mitogen-activated protein ki

关键词： Heteromorphic self-incompatibility Plumbago auriculata proteomics 4D-diA

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小麦秸秆制备热解型煤黏结剂的实验研究

煤炭技术 2024年第6期43卷 282-285页

作者：党红艳陈明胜刘晓华赵琰高迪陈雅楠高凡王艳丽贺新福陕西省能源质量监督检验所西安710054 国家煤炭质量监督检验中心(西安) 西安710054 西安科技大学化学与化工学院西安710054 自然资源部煤炭资源勘查与综合利用重点实验室西安710021

以生物质和低阶粉煤为原料制备热解型煤是实现低阶粉煤高效清洁分质利用的重要技术之一。该研究以小麦秸秆水解残渣(WSR)为黏结剂主要成分,分别复配3种无机黏结剂成分和5种有机黏结剂成分,考察了黏结剂组成对型煤落下强度、热强度和热... 详细信息

以生物质和低阶粉煤为原料制备热解型煤是实现低阶粉煤高效清洁分质利用的重要技术之一。该研究以小麦秸秆水解残渣(WSR)为黏结剂主要成分,分别复配3种无机黏结剂成分和5种有机黏结剂成分,考察了黏结剂组成对型煤落下强度、热强度和热稳定性的影响规律,优选了膨润土、碱性淀粉、腐植酸钠(HA-Na)等3种黏结剂成分,采用正交试验对复合黏结剂的组成进行了优化。在最优复合黏结剂配比(WSR 12.5%,膨润土3%,HA-Na 3%,碱性淀粉1%)条件下,制备的型煤落下强度为98%,冷压强度3 161 N/个,热强度1 231 N/个,热稳定性99%。

关键词：热解型煤复合黏结剂小麦秸秆低阶粉煤

One-step preparation of efficient cuprous chloride catalyst for direct synthesis of trimethoxysilane

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Chinese Journal of Chemical Engineering 2024年第7期71卷 161-171页

作者： Jiaxin Zhang Lu Wang Zhiqiang Ma Chuanjun di Guanghui Chen Jipeng Dong Jianlong Li Fei gao Key Laboratory of Multiphase Flow Reaction and Separation Engineering of Shandong Province College of Chemical EngineeringQingdao University of Science and TechnologyQingdao 266042China

CuCl-based catalysts are the most commonly used catalysts for the“direct synthesis”of trimethoxysilane(M3).CuCl species are sensitive to air and water,and are prone to oxidation *** CuCl is directly used as a catalyst,it needs to be purified before the utilization,and the operating conditions for the catalyst preparation are relatively harsh,requiring the inert gas *** a high-temperature activation step required for CuCl-based catalysts used for catalyzing synthesis of M3 to form active phase Cu–Si alloys(Cu_(x)Si)with Si powder,in this work,a series of catalysts for the“direct synthesis”of M3 were obtained by a one-step high-temperature activation of the mixture of stable CuCl_(2) precursors,activated carbon-reducing agent,and Si powder,simultaneously achieving the reduction of CuCl_(2) to CuCl and the formation of active phase Cu_(x)Si alloys of CuCl with Si *** prepared samples were characterized through various characterization techniques,and investigated for the catalytic performance for the“direct synthesis”of ***,the operation conditions were optimized,including the activation temperature,catalyst dosage,Si powder particle size,and reaction *** characterization results indicate that during the one-step activation process,the CuCl_(2) precursor is reduced to CuCl,and the resulting CuCl simultaneously reacts with Si powder to form active phases Cu3Si and Cu15Si4 *** optimal catalyst Sacm(250,0.8:10)exhibits a good catalytic activity with selectivity of 95%and yield of 77%for M3,and shows a good universality for various alcohol ***,the catalytic mechanism of the prepared catalyst for the“direct synthesis”of M3 was discussed.

关键词： Trimethoxysilane Cuprous chloride Catalysis Catalyst activation Reduction Active phase formation

Cryptic diversity and rampant hybridization in annual gentians on the Qinghai-Tibet Plateau revealed by population genomic analysis

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Plant diversity 2024年第2期46卷 194-205页

作者： Peng-Cheng Fu Qiao-Qiao Guo di Chang Qing-Bo gao Shan-Shan Sun School of Life Science Luoyang Normal UniversityLuoyang 471934PR China Key Laboratory of Adaptation and Evolution of Plateau Biota Northwest Institute of Plateau BiologyChinese Academy of SciencesXining 810001PR China

Understanding the evolutionary and ecological processes involved in population differentiation and speciation provides critical insights into biodiversity formation. In this study, we employed 29,865 single nucleotide polymorphisms(SNPs) and complete plastomes to examine genomic divergence and hybridization in Gentiana aristata, which is endemic to the Qinghai-Tibet Plateau(QTP) region. Genetic clustering revealed that G. aristata is characterized by geographic genetic structures with five clusters(West, East, Central, South and North). The West cluster has a specific morphological character(i.e., blue corolla) and higher values of FSTcompared to the remaining clusters, likely the result of the geological barrier formed by the Yangtze River. The West cluster diverged from the other clusters in the Early Pliocene;these remaining clusters diverged from one another in the Early Quaternary. Phylogenetic reconstructions based on SNPs and plastid data revealed substantial cyto-nuclear conflicts. Genetic clustering and D-statistics demonstrated rampant hybridization between the Central and North clusters,along the Bayankala Mountains, which form the geological barrier between the Central and North clusters. Species distribution modeling demonstrated the range of G. aristata expanded since the Last Interglacial period. Our findings provide genetic and morphological evidence of cryptic diversity in G. aristata, and identified rampant hybridization between genetic clusters along a geological *** findings suggest that geological barriers and climatic fluctuations have an important role in triggering diversification as well as hybridization, indicating that cryptic diversity and hybridization are essential factors in biodiversity formation within the QTP region.

关键词： Gentiana aristata Hybrid zone Qinghai-Tibet Plateau Plastome Nuclear SNPs

Immunogenic-cell-killing and immunosuppression-inhibiting nanomedicine

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Bioactive Materials 2021年第6期6卷 1513-1527页

作者： Ying Wang di gao Yan Liu Xiaoqing Guo Shuojia Chen Li Zeng Jinxuan Ma Xingcai Zhang Zhongmin Tian Zhe Yang The Key Laboratory of Biomedical Information Engineering of Ministry of Education School of Life Science and TechnologyXi’an Jiaotong UniversityXi’an710049China John A.Paulson School of Engineering and Applied Sciences Harvard UniversityCambridgeMA02138United States School of Engineering Massachusetts Institute of TechnologyCambridgeMA02139United States

Combining chemo-therapeutics with immune checkpoint inhibitors facilitates killing cancer cells and activating the immune system through inhibiting immune ***,their treatment effects remain limited due to the compromised accumulation of both drugs and inhibitors in certain tumor ***,a new poly(acrylamide-co-acrylonitrile-co-vinylimidazole-co-bis(2-methacryloyl)oxyethyl disulfide)(PAAVB)polymer-based intelligent platform with controllable upper critical solution temperature(UCST)was used for the simultaneous delivery of paclitaxel(PTX)and curcumin(CUR).Additionally,a hyaluronic acid(HA)layer was coated on the surface of PAAVB NPs to target the CD44-overexpressed tumor *** proposed nanomedicine demonstrated a gratifying accumulation in tumor tissue and uptake by cancer ***,the acidic microenvironment and high level of glutathione(GSH)in cancer cells could spontaneously decrease the UCST of polymer,leading to the disassembly of the NPs and rapid drug release at body temperature without ***,the released PTX and CUR could induce the immunogenic cell death(ICD)to promote adaptive anti-tumor immunogenicity and inhibit immunosuppression through suppressing the activity of indoleamine 2,3-dioxygenase 1(IDO1)enzyme ***,the synergism of this intelligent nanomedicine can suppress primary breast tumor growth and inhibit their lung metastasis.

关键词： Controllable upper critical solution temperature(UCST) Immunogenic cell death(ICD) Indoleamine 2,3-dioxygenase 1(IDO1) Drug delivery Cancer chemoimmunotherapy

Long noncoding RNAs HAND2-AS1 ultrasound microbubbles suppress hepatocellular carcinoma progression by regulating the miR-873-5p/tissue inhibitor of matrix metalloproteinase-2 axis

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World Journal of Gastrointestinal Oncology 2024年第4期16卷 1547-1563页

作者： Qiang Zou Hao-Wen Wang Xi-Liang di Yuan Li Hui gao Department of Interventional Therapy Tianjin Medical University Cancer Institute and HospitalTianjin 300060China National Clinical Research Center for Cancer Key Laboratory of Cancer Prevention and TherapyTianjin’s Clinical Research Center for CancerTianjin 300060China College of Animal Science and Technology Northeast Agricultural UniversityHarbin 150030Heilongjiang ProvinceChina Department of Hematology and Oncology Linyi People’s HospitalLinyi 251500Shandong ProvinceChina Department of Comprehensive Oncology Baotou Cancer HospitalBaotou 014030Inner Mongolia Autonomous RegionChina

BACKGROUND Increasing data indicated that long noncoding RNAs(lncRNAs)were directly or indirectly involved in the occurrence and development of tumors,including hepatocellular carcinoma(HCC).Recent studies had found that the expression of lncRNA HAND2-AS1 was downregulated in HCC tissues,but its role in HCC progression is *** targeted microbubble destruction mediated gene transfection is a new method to overexpress *** To study the role of ultrasound microbubbles(UTMBs)mediated HAND2-AS1 in the progression of HCC,in order to provide a new reference for the treatment of *** In vitro,we transfected HAND2-AS1 siRNA into HepG2 cells by UTMBs,and detected cell proliferation,apoptosis,invasion and epithelial-mesenchymal transition(EMT)by cell counting kit-8 assay,flow cytometry,Transwell invasion assay and Western blotting,*** addition,we transfected miR-837-5p mimic into UTMBs treated cells and observed the changes of cell ***,the UTMBs treated HepG2 cells were transfected together with miR-837-5p mimic and tissue inhibitor of matrix metalloproteinase-2(TIMP2)overexpression vector,and we detected cell proliferation,apoptosis,invasion and *** vivo,we established a mouse model of subcutaneous transplantation of HepG2 cells and observed the effect of HAND2-AS1 silencing on tumor formation *** We found that UTMBs carrying HAND2-AS1 restricted cell proliferation,invasion,and EMT,encouraged apoptosis,and HAND2-AS1 silencing eliminated the effect of ***,miR-873-5p targets the gene HAND2-AS1,which also targets the 3’UTR of *** miR-873-5p mimic counteracted the impact of ***,miR-873-5p mimic solely or in combination with pcDNA-TIMP2 had been transformed into HepG2 cells exposed to *** discovered that TIMP2 reversed the effect of miR-873-5p mimic caused by the blocked signalling cascade for matrix metalloproteinase(MMP)2/*** vivo results showed that HAND2-AS1 silencing sig

关键词： Hepatocellular carcinoma Ultrasound microbubbles Long noncoding RNA HAND2-AS1 miR-873-5p Tissue inhibitor of matrix metalloproteinase-2