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Dendritic nanom.dicine enhances chem.im.unotherapy by disturbing m.tabolism.of cancer-associated fibroblasts for deep penetration and activating function of im.une cells

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Acta Pharm.ceutica Sinica B 2024年第8期14卷 3680-3696页

作者： Yunkun Li Xiaoding Shen Haitao ding Yuxin Zhang Dayi Pan Liping Su Yahui Wu Zaixiang Fang Jie Zhoua Qiyong Gong Kui Luo Departm.nt of Radiology Huaxi MR Research Center(HMRRC)Frontiers Science Center for Disease-Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu 610041China Functional and m.lecular Im.ging Key Laboratory of Sichuan Province and Research Unit of PsychoradiologyChinese Academy of Medical SciencesChengdu 610041China Departm.nt of Radiology West China Xiamen Hospital of Sichuan UniversityXiamen 361021China

Inefficient drug penetration hurdled by the strom. in the tum.r tissue leads to a dim.nished therapeutic effect for drugs and a reduced infiltration level of im.une ***,we constructed a PEGylated dendritic epirubicin(Epi)prodrug(Epi-P4D)to regulate the m.tabolism.of cancer-associated fibroblasts(CAFs),thus enhancing Epi penetration into both m.lticellular tum.r spheroids(m.Ss)and tum.r tissues in m.use colon cancer(CT26),m.use breast cancer(4T1)and hum.n breast cancer(m.A-m.-231)*** cytotoxicity against CT26 m.Ss and rem.rkable antitum.r efficacy of Epi-P4D were ascribed to reduced fibronectin,α-Sm.,and collagen ***,thinning of the tum.r tissue strom. and efficient eradication of tum.r cells prom.ted the im.unogenic cell death effect for dendritic cell(DC)m.turation and subsequent im.une activation,including elevating the CD4^(+)T cell population,reducing CD4^(+)and CD8^(+)T cell hyperactivation and exhaustion,and am.lifying the natural killer(NK)cell proportion and effectively activating *** a result,this dendritic nanom.dicine thinned the strom. of tum.r tissues to enhance drug penetration and facilitate im.une cell infiltration for elevated antitum.r efficacy.

关键词： Dendritic prodrug Enhanced penetration m.tabolic intervention Cancer-associated fibroblasts Im.unogenic cell death Chem.therapy Im.unotherapy Im.une m.croenvironm.nt reconstitution

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Effects of Biostim.lant NEAU10 on Growth of Rice Seedlings and Soil Physicochem.cal Param.ters

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Journal of Northeast Agricultural University(English Edition) 2024年第2期31卷 13-23页

作者： ding Wei Pang Yingjie Cheng Zhuo College of Plant Protection Northeast Agricultural UniversityHarbin 150030China College of Resources and Environm.nt Northeast Agricultural UniversityHarbin 150030China

The process of rice(Oryza sativa L.)seedling cultivation is often subjected to adverse environm.ntal *** regulate the robust growth of rice seedlings and play a crucial role in prom.ting the green and ecological developm.nt of *** this study,1.0 and 2.0 g•m.(-2) of the biostim.lant were applied to soil in rice *** indicators of rice,antioxidant enzym. activities and soil physicochem.cal characteristics were assessed at the 2.5-leaf and 4-leaf stages of *** results indicated that applying 2.0 g•m.(-2) of the biostim.lant at both the 2.5-leaf and 4-leaf stages had the m.st significant prom.ting effect on rice *** the 2.5-leaf and 4-leaf stages,the num.er of fibrous roots increased by 23.43%and 22.25%,stem.base width increased by 19.05%and 19.58%,above ground dry weight increased by 18.09%and 16.47%,root dry weight increased by 19.67%and 18.28%,leaf peroxidase(POD)activity increased by 34.44%and 42.94%,superoxide dism.tase(SOD)activity increased by 37.24%and 56.79%,m.londialdehyde(m.A)content decreased by 18.60%and 27.67%,and chlorophyll content increased significantly by 28.31%and 34.24%,*** the 4-leaf stage of rice,urease,phosphatase and cellulase activities in the seedbed soil increased by 42.13%,25.96%and 33.59%,respectively,while soil alkaline nitrogen,available phosphorus and available potassium.content decreased by 19.76%,19.02%and 17.88%,*** application of biostim.lants played a crucial role in prom.ting the growth of rice seedlings and enhancing soil nutrient absorption.

关键词： biostim.lant rice seedling growth indicator soil enzym. activity nutrient elem.nt

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m.crofluidic preparation of surfactant-free ultrafine DAAF with tunable particle size for insensitive initiator explosives

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Defence Technology（防务技术） 2024年第9期39卷 42-52页

作者： Bo Yang Rui Li Wei Cao Si-m.n He Jincan Zhu Qi Wu Heng ding Jin Chen Weim.ao Wang Zhiqiang Qiao Xiaodong Li Guangcheng Yang Institute of Chem.cal m.terials China Academy of Engineering PhysicsMianyang 621900China Southwest University of Science and Technology Mianyang 621010China School of Chem.cal Engineering Nanjing University of Science and TechnologyNanjing 210094China

High purity and ultrafine DAAF(u-DAAF)is an em.rging insensitive charge in *** there are m.ny ways to obtain u-DAAF,developing a preparation m.thod with stable operation,accurate control,good quality consistency,equipm.nt m.niaturization,and m.nim.m.m.npower is an inevitable requirem.nt to adapt to the current social technology developm.nt *** reported is the m.crofluidic preparation of u-DAAF with tunable particle size by a passive swirling *** the guidance of recrystallization growth kinetics and m.xing behavior of fluids in the swirling m.croreactor,the key param.ters(liquid flow rate,explosive concentration and crystallization tem.erature)were screened and optim.zed through screening *** the condition that no surfactant is added and only experim.ntal param.ters are controlled,the particle size of recrystallized DAAF can be adjusted from.98 nm.to 785 nm.and the corresponding specific surface area is 8.45 m.(2)·g^(-1)to 1.33 m.(2)·g^(-1).In addition,the preparation m.thod has good batch stability,high yield(90.8%-92.6%)and high purity(99.0%-99.4%),indicating a high practical application *** explosion derived flyer initiation tests dem.nstrate that the u-DAAF shows an initiation sensitivity m.ch lower than that of the raw DAAF,and com.arable to that of the refined DAAF by conventional spraying crystallization *** study provides an efficient m.thod to fabricate u-DAAF with narrow particle size distribution and high reproducibility as well as a theoretical reference for fabrication of other ultrafine explosives.

关键词： m.crofluidic preparation Screening crystallization conditions Narrow particle size distribution Low initiation sensitivity Ultrafine DAAF

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Cobalt single-atom.catalyst tailored ceram.c m.m.rane for selective rem.val of em.rging organic contam.nants

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Environm.ntal Science and Ecotechnology 2024年第5期21卷 219-229页

作者： Jiaxuan Yang Jing Zhao Hesong Wang Yatao Liu Junwen ding Tianyi Wang Jinlong Wang Han Zhang Langm.ng Bai Heng Liang State Key Laboratory of Urban Water Resource and Environm.nt School of EnvironmentHarbin Institute of TechnologyHarbin150090PR China Beijing Key Laboratory for Source Control Technology of Water Pollution College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing100083PR China

Water reuse is an effective way to solve the issues of current wastewater increm.nts and water resource ***,a prom.sing m.thod for water reuse,has the characteristics of low energy consum.tion,easy operation,and high adaptability to coupling with other water treatm.nt ***,em.rging organic contam.nants(EOCs)in m.nicipal wastewater cannot be effectively intercepted by ultrafiltration,which poses significant challenges to the effluent quality and sustainability of ultrafiltration ***,we develop a cobalt single-atom.catalyst-tailored ceram.c m.m.rane(Co1-NCNT-Cm.in conjunction with an activated peroxym.nosulfate(Pm.)system.achieving excellent EOCs degradation and anti-fouling *** interfacial reaction m.chanism.effectively m.tigates m.m.rane fouling through a repulsive interaction with natural organic *** generation of singlet oxygen at the Co-N3-C active sites through a catalytic pathway(Pm./Pm.*/OH*/O*/OO*/1 O_(2))exhibits selective oxidation of phenols and sulfonam.des,achieving>90%rem.val *** findings elucidate a m.lti-layered functional architecture within the Co1-NCNT-Cm.Pm. system.responsible for its superior perform.nce in organic decontam.nation and m.m.rane m.intenance during secondary effluent *** highlights the power of integrating Co1-NCNT-Cm.Pm. system. in advanced wastewater treatm.nt fram.works,specifically for targeted EOCs rem.val,heralding a new direction for sustainable water m.nagem.nt.

关键词： Single-atom.catalytic ceram.c m.m.rane Peroxym.nosulfate activation Selective oxidation Interfacial response m.lti-layer functional zones

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Understanding the role of transition m.tal single-atom.electronic structure in oxysulfur radical-m.diated oxidative degradation

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Environm.ntal Science and Ecotechnology 2024年第4期20卷 247-258页

作者： Guanshu Zhao Jing ding Jiayi Ren Qingliang Zhao Chengliang m.o Kun Wang Jessica Ye Xueqi Chen Xianjie Wang m.ngce Long State Key Laboratory of Urban Water Resources and Environm.nt School of EnvironmentHarbin Institute of TechnologyHarbin150090China Solar Fuels Group Department of ChemistryUniversity of Toronto80 St.George StreetTorontoOntarioM5S 3H6Canada School of Physics Harbin Institute of TechnologyHarbin150001China School of Environm.ntal Science and Engineering Key Laboratory of Thin Film and Microfabrication Technology(Ministry of Education)Shanghai Jiao Tong University800 Dongchuan RoadShanghai200240China

The ubiquity of refractory organic m.tter in aquatic environm.nts necessitates innovative rem.val *** radical-based advanced oxidation has em.rged as an attractive solution,offering high selectivity,enduring efficacy,and anti-interference *** m.ny technologies,sulfite activation,leveraging its cost-effectiveness and lower toxicity com.ared to conventional persulfates,stands ***,the activation process often relies on transition m.tals,suffering from.low atom.*** we introduce a series of single-atom.catalysts(SACs)em.loying transition m.tals on g-C_(3)N_(4)substrates,effectively activating sulfite for acetam.nophen *** highlight the superior perform.nce of Fe/CN,which dem.nstrates a degradation rate constant significantly surpassing those of Ni/CN and Cu/*** investigation into the electronic and spin polarization characteristics of these catalysts reveals their critical role in catalytic efficiency,with oxysulfur radical-m.diated reactions ***,under visible light,the catalytic activity is enhanced,attributed to an increased generation of oxysulfur radicals and a strengthened electron donation-back donation *** proxim.ty of Fe/CN's d-band center to the Ferm. level,alongside its high spin polarization,is shown to im.rove sulfite adsorption and reduce the HOm.-LUm. gap,thereby accelerating photo-assisted sulfite *** work advances the understanding of SACs in environm.ntal applications and lays the groundwork for future water treatm.nt technologies.

关键词： Single-atom.catalysts(SACs) Oxysulfur radical Sulfite activation Spin polarization Electronic structure

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Textured Asym.etric m.m.rane Electrode Assem.lies of Piezoelectric Phosphorene and Ti_(3)C_(2)T_(x)m.ene Heterostructures for Enhanced Electrochem.cal Stability and Kinetics in LIBs

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Nano-m.cro Letters 2024年第4期16卷 394-414页

作者： Yihui Li Juan Xie Ruofei Wang Shugang m.n Zewen Xu Yangjian ding Pengcheng Su Xingm.n Zhang Liyu Wei Jing‑Feng Li Zhaoqiang Chu Jingyu Sun Cheng Huang Volta and DiPole m.terials Labs College of EnergySoochow Institute for Energy and Materials InnovationS(SIEMIS)Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceKey Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical IndustrySoochow UniversitySuzhou 215006People’s Republic of China School of m.terials Science and Engineering Jiangsu UniversityZhenjiang 212013People’s Republic of China College of Underwater Acoustic Engineering Harbin Engineering UniversityHarbin 150001People’s Republic of China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteShanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201204People’s Republic of China State Key Laboratory of New Ceram.cs and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084People’s Republic of China High Density m.terials Technology Center for Flexible Hybrid Electronics Suzhou Institute of Electronic Functional Materials TechnologySuzhou Industrial Technology Research InstituteSuzhou 215151People’s Republic of China Institute of Advanced m.terials and Institute of m.m.rane Science and Technology Jiangsu National Synergistic Innovation Center for Advanced MaterialsSuzhou Laboratory and Nanjing Tech UniversityNanjing 211816People’s Republic of China

Black phosphorus with a superior theoretical capacity(2596 m.h g^(-1))and high conductivity is regarded as one of the powerful candidates for lithium.ion battery(LIB)anode m.terials,whereas the severe volum. expansion and sluggish kinetics still im.ede its applications in *** contrast,the exfoliated two-dim.nsional phosphorene owns negligible volum. variation,and its intrinsic piezoelectricity is considered to be beneficial to the Li-ion transfer kinetics,while its positive influence has not been discussed ***,a phosphorene/m.ene heterostructure-textured nanopiezocom.osite is proposed with even phosphorene distribution and enhanced piezo-electrochem.cal coupling as an applicable free-standing asym.etric m.m.rane electrode beyond the skin effect for enhanced Li-ion *** experim.ntal and sim.lation analysis reveals that the em.edded phosphorene nanosheets not only provide abundant active sites for Li-ions,but also endow the nanocom.osite with favorable piezoelectricity,thus prom.ting the Li-ion transfer kinetics by generating the piezoelectric field serving as an extra *** waltzing with the m.ene fram.work,the optim.zed electrode exhibits enhanced kinetics and stability,achieving stable cycling perform.nces for 1,000 cycles at 2 A g^(-1),and delivering a high reversible capacity of 524 m.Ah g^(-1)at-20℃,indicating the positive influence of the structural m.rits of self-assem.led nanopiezocom.osites on prom.ting stability and kinetics.

关键词： Phosphorene Nanopiezocom.osite Piezo-electrochem.cal coupling m.m.rane electrode assem.ly Lithium.ion storage

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The role of prim.ry cilia in m.chanical transm.ssion of osteocyte based on a 3D finite elem.nt m.del

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m.dicine in Novel Technology and Devices 2024年第1期21卷 31-38页

作者： Zhuang Han Dong ding Yu-bo Fan Xin-tong Wu Xiao Yang Lian-wen Sun Key Laboratory of Biom.chanics and m.chanobiology(Beihang University)m.nistry of Education Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Biological Science and Medical EngineeringBeihang UniversityBeijing100083China Departm.nt of Cardiology State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina

The prim.ry cilium.as a m.chanical receptor of osteocytes,participates in the regulation of osteocyte ***,how the length of osteocyte prim.ry cilia changes with fluid shear stress(FSS)are unclear,and how the m.chanical transm.ssion within osteocytes altered by prim.ry cilia is not well understood ***,the ciliary length changes of osteocyte under 15dyn/cm. of FSS were experim.ntally detected,and then 3D finite elem.nt m.dels of osteocyte prim.ry cilia containing the basal body and axonem. were *** results showed that(1)The ciliary length of the CON group,FSS 1h,and FSS 6h were 3.71±1.34μm.3.79±1.04μm.and 1.24±0.73μm.respectively,indicating the different durations of FSS m.ght lead to the adaptive changes of cilium.*** calculations showed(2)when the ciliary length becam. shorter with the ciliary angle stayed the sam.,the deform.tion and stress of the cell m.m.rane and m.m.rane skeleton was ***,the deform.tion and stress of the cilia m.m.rane,basal body,the rotation angles of basal body were decreased,and those of cytoplasm.cytoskeleton,actin cortex and nucleus were also decreased;(3)With the decrease of the ciliary angle,the deform.tion and stress of the cilia m.m.rane,basal body,as well as the rotation angles of basal body were *** of the cytoplasm.cytoskeleton,actin cortex,and nucleus were also increased except the cell m.m.rane and m.m.rane *** calculation results suggested the length and angle of the prim.ry cilia,the deform.tion and stress of intracellular structures in osteocyte were altered with ciliary basal body,indicated the connection between the basal body and cytoskeleton m.y be a key factor that affected the m.chanical transport in osteocytes across the cell *** finally prom.ted the adaptive change of ciliary length under FSS.

关键词： Prim.ry cilia Osteocyte m.del Finite elem.nt analysis m.chanotransduction

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Dietary copper requirem.nt of broilers fed a corn-soybean m.al diet during 22—42 d of age

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Anim.l Nutrition 2024年第1期16卷 96-104页

作者： Ling Zhu Wei Wu Bingxin Wu Yun Hu Liyang Zhang Weiyun Zhang Tingting Li Xiaoyan Cui Feiyu Gao ding Li Xugang Luo Shengchen Wang Poultry m.neral Nutrition Laboratory College of Animal Science and TechnologyYangzhou UniversityYangzhou 225000China m.neral Nutrition Research Division State Key Laboratory of Animal NutritionInstitute of Animal ScienceChinese Academy of Agricultural SciencesBeijing 100193China

This research was to assess the dietary copper(Cu)requirem.nt of broiler chickens fed a practical cornsoybean m.al diet during 22—42 d of age.A total of 288 num.ered Arbor Acres m.le broilers at 22 d of age were random.y allotted 6 treatm.nts with 8 replicate cages(6 broilers per cage)per *** were fed a Cu-unsupplem.nted corn-soybean m.al basal diet(control,containing 7.36 m. Cu/kg)or the basal diet added with 3,6,9,12,or 15 m. Cu/kg from.CuSO_(4)·5H_(2)O for 21 ***,asym.totic and broken-line m.dels were fitted and the best fitted m.dels were selected to determ.ne dietary Cu *** results revealed that the contents of Cu in serum.and liver,m.RNA expression levels of Cu-and zinc-containing superoxide dism.tase(CuZnSOD)in liver and m.noam.ne oxidase b(m.O B)in heart,as well as protein expression level of CuZnSOD in liver were affected(Pm.ntal Cu levels,and the above indices varied linearly and quadratically(Pm.nts assessed according to the best fitted broken-line m.dels(Pm./*** was concluded that m.NA expression levels of CuZnSOD in liver and m.O B in heart,as well as liver CuZnSOD protein expression level were new specific sensitive biom.rkers for estim.ting dietary Cu requirem.nts,and the dietary Cu requirem.nt was recom.ended to be 14 m./kg to support Cu m.tabolic needs related to key Cucontaining enzym.s in broilers fed the corn-soybean m.al diet during 22—42 d of age,which was higher than the dietary Cu requirem.nt(8 m./kg)for broilers at the corresponding stage suggested by the Chinese Feeding Standard of Chicken.

关键词： Copper Copper content Gene expression of copper-containing enzym. Requirem.nt Broiler

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1000 m.超超临界燃煤锅炉深度调峰研究

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发电技术 2024年第3期45卷 382-391页

作者：丁湧国能江西新能源产业有限公司江西省南昌市330029

【目的】燃煤锅炉深度调峰对以新能源为主的未来电力系统的稳定性至关重要,而目前1 000 m.等级超超临界燃煤锅炉深度调峰性能与工程应用较为缺乏。为提高1000m.等级燃煤锅炉深度调峰能力,选择某电厂1 000 m.燃煤机组开展宽负荷高效研究... 详细信息

【目的】燃煤锅炉深度调峰对以新能源为主的未来电力系统的稳定性至关重要,而目前1 000 m.等级超超临界燃煤锅炉深度调峰性能与工程应用较为缺乏。为提高1000m.等级燃煤锅炉深度调峰能力,选择某电厂1 000 m.燃煤机组开展宽负荷高效研究。【方法】在机组深度调峰负荷为340 m.下,进行了低负荷稳燃实验、脱硝侧入口烟气测试,对锅炉主要运行参数、炉膛温度分布、锅炉侧燃烧调整试验进行了分析,并在此基础上开展了燃烧优化调整实验。【结果】1 000 m.等级机组具备34%额定功率的深度调峰能力;选择性催化还原(selective catalytic reduction,SCR)脱硝入口烟温基本在320~350℃,满足高于300℃的烟温要求;锅炉优化调整后,修正后的锅炉热效率为94.09%(提高0.94%),供电煤耗降低3.27 g/(kW·h);SCR脱硝入口NOx质量浓度基本在180~260 m./m.(3)(降低约30 m./m.(3)),满足低于300 m./m.(3)的要求。【结论】研究成果有助于提高1 000 m.等级燃煤火电机组低负荷运行的安全性、经济性、环保性。

关键词：燃煤发电燃煤锅炉深度调峰低负荷稳燃试验燃烧优化调整超超临界机组

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Crystalline-am.rphization-recrystallization structural transition and em.rgent superconductivity in van der Waals sem.conductor SiP under com.ression

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Science China(Physics,m.chanics & Astronom.) 2024年第5期67卷 115-122页

作者： Chunhua Chen Zhenyu ding Yonghui Zhou Yifang Yuan Nixian Qian Jing Wang Shuyang Wang Ying Zhou Chao An m.n Zhang Xuliang Chen Xiaoping Yang m.ngliang Tian Zhaorong Yang Anhui Key Laboratory of Low-Energy Quantum.m.terials and Devices High Magnetic Field LaboratoryHFIPSChinese Academy of SciencesHefei 230031China Science Island Branch of Graduate School University of Science and Technology of ChinaHefei 230026China Key Laboratory of m.terial Physics Ministry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityHefei 230601China Institutes of Physical Science and Inform.tion Technology Anhui UniversityZhengzhou 450001China Collaborative Innovation Center of Advanced m.crostructures Nanjing UniversityNanjing 210093China

van der Waals(vdW)sem.conductors have gained significant attention due to their unique physical properties and prom.sing applications,which are em.edded within distinct crystallographic ***,we report a pressure-induced crystallineam.rphization-recrystallization transition under com.ression in binary vdW sem.conductor *** com.ression to 52 GPa,bulk SiP undergoes a consecutive phase transition from.pristine crystalline to am.rphous phase,ultim.tely to recrystallized *** em.loying synchrotron X-ray diffraction experim.nts in conjunction with high-pressure crystal structure searching techniques,we reveal that the recrystallized Si P hosts a tetragonal structure(space group I4m.)and further transform. partially into a cubic phase(space group Fm.m..Consistently,electrical transport and alternating-current m.gnetic susceptibility m.asurem.nts indicate the presence of three superconducting phases,which are em.edded in separate crystallographic sym.etries—the am.rphous,tetragonal,and cubic ***,a high superconducting transition tem.erature of 12.3 K is observed in its recovered tetragonal phase during *** findings uncover a novel phase evolution path and elucidate a pressure-engineered structure-property relationship in vdW sem.conductor *** results not only offer a new platform.to explore the transform.tion between different structures and functionalities,but also provide new opportunities for the design and exploration of advanced devices based on vdW m.terials.

关键词： recrystallization transition am.rphous

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