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Enhancing the Interaction of Carbon Nanotubes by Metal-Organic Decomposition with Improved Mechanical Strength and Ultra-Broadband EMI Shielding Performance

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Nano-Micro Letters 2024年第7期16卷 281-294页

作者： Yu-Ying Shi Si-Yuan Liao Qiao-feng Wang Xin-Yun Xu Xiao-Yun Wang Xin-Yin Gu You-gen Hu Peng-Li Zhu Rong Sun Yan-Jun Wan Shenzhen Institute of Advanced Electronic Materials Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055People’s Republic of China Southern University of Science and Technology Shenzhen 518055People’s Republic of China National Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050People’s Republic of China

The remarkable properties of carbon nanotubes(CNTs)have led to promising applications in the field of electromagnetic inter-ference(EMI)***,for macroscopic CNT assemblies,such as CNT film,achieving high electrical and mechanical properties remains challenging,which heavily depends on the tube-tube interac-tions of ***,we develop a novel strategy based on metal-organic decomposition(MOD)to fabricate a flexible silver-carbon nanotube(Ag-CNT)*** Ag particles are introduced in situ into the CNT film through annealing of MOD,leading to enhanced tube-tube *** a result,the electrical conductivity of Ag-CNT film is up to 6.82×10^(5) S m^(-1),and the EMI shielding effectiveness of Ag-CNT film with a thickness of~7.8μm exceeds 66 dB in the ultra-broad frequency range(3-40 GHz).The tensile strength and Young’s modulus of Ag-CNT film increase from 30.09±3.14 to 76.06±6.20 MPa(~253%)and from 1.12±0.33 to 8.90±0.97 GPa(~795%),***,the Ag-CNT film exhibits excellent near-field shield-ing performance,which can effectively block wireless *** innovative approach provides an effective route to further apply macroscopic CNT assemblies to future portable and wearable electronic devices.

关键词： EMI shielding Mechanical strength Carbon nanotubes Metal-organic decomposition Flexibility

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Optical Extinctions of Inter-Arm Molecular Clouds in M31:A Pilot Study for the Upcoming CSST Observations

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Research in Astronomy and Astrophysics 2024年第6期24卷 323-333页

作者： Cailing Chen Zheng Zheng Chao-Wei Tsai Sihan jiao Jing Tang Jingwen Wu Di Li Yun Zheng Linjing feng Yujiao Yang Yuan Liang National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Radio Astronomy and Technology Chinese Academy of SciencesBeijing 100101China Institute for Frontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China Zhejiang Lab Hangzhou 311121China

Recent submillimeter dust thermal emission observations have unveiled a significant number of inter-arm massive molecular clouds in ***,the effectiveness of this technique is limited to its sensitivity,making it challenging to study more distant *** study introduces an alternative approach,utilizing optical extinctions derived from space-based telescopes,with a focus on the forthcoming China Space Station Telescope(CSST).We first demonstrate the capability of this method by constructing dust extinction maps for 17 inter-arm massive molecular clouds in M31 using the Panchromatic Hubble Andromeda Treasury *** analysis reveals that inter-arm massive molecular clouds with an optical extinction(A_(V)) greater than 1.6 mag exhibit a notable A_(V) excess,facilitating their *** majority of these inter-arm massive molecular clouds show an A_(V) around 1 mag,aligning with measurements from our JCMT *** validation using a mock CSST RGB star catalog confirms the method's *** show that the derived A_(V)values using CSST z and y photometries align more closely with the input *** clouds with A_(V)> 1.6 mag can also be identified using the CSST mock *** thus claim that future CSST observation clouds provide an effective way for the detection of inter-arm massive molecular clouds with significant optical extinction in nearby galaxies.

关键词： infrared:stars ISM:clouds Galaxy:structure

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Dynamics and Exact Solutions of (1 + 1)-Dimensional generalized Boussinesq Equation with Time-Space Dispersion Term

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Journal of Applied Mathematics and Physics 2024年第8期12卷 2723-2737页

作者： Dahe feng Jibin Li Jianjun jiao School of Mathematics and Statistics Guizhou University of Finance and Economics Guiyang China School of Mathematical Sciences Huaqiao University Quanzhou China

We study exact solutions to (1 + 1)-dimensional generalized Boussinesq equation with time-space dispersion term by making use of improved sub-equation method, and analyse the dynamical behavior and exact solutions of the sub-equation after constructing the nonlinear transformation and constraint conditions. Accordingly, we obtain twenty families of exact solutions such as analytical and singular solitons and singular periodic waves. In addition, we discuss the impact of system parameters on wave propagation.

关键词： generalized Boussinesq Equation Improved Sub-Equation Method Bifurcation Soliton Solution Periodic Solution

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Chlorajaponins A—Q,Lindenane-Related Sesquiterpenoid Dimers from Chloranthus japonicus and Their Biological Activities

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Chinese Journal of Chemistry 2024年第11期42卷 1247-1259页

作者： Wei-jiao feng Yue Gu Pei-Zhi Huang Hong-Ying Yang Rui Zhang Yi-Lin He Ting-Hong Lv Ya Li Kun Gao State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhouGansu730000 China Research Institute Lanzhou Jiaotong UniversityLanzhouGansu730070 China

Seventeen undescribed lindenane-related sesquiterpenoid dimers,chlorajaponins A—Q(1—17),and 13 reported analogs(18—30)were isolated from Chloranthus japonicus *** 1 possesses an unprecedented 3/5/7/5/5/6/5/3 fused octacyclic scaffold,featuring a 6(5→4)-abeo-lindenane monomer,while 2 exhibits a 3/5/6/6/5/6/5/3 fused octacyclic *** structures were determined through a combination of spectroscopic analyses and X-ray *** 1,2,and 18 demonstrated significant inhibitory effects on lipid accumulation and effectively reduced the levels of triglycerides and total cholesterol,as well as the levels of aspartate aminotransferase and alanine aminotransferase in a HepG2 cell *** addition,compounds 1,2,and 18 significantly suppressed the protein expression of the fatty acid synthase(FASN)and the sterol regulatory element-binding protein 1(SREBP1).Moreover,the anti-inflammatory assay showed that compounds 19—22 and 25 inhibited the NO production induced by lipopolysaccharide in RAW 264.7 macrophages with IC50 values of 7.89±0.44,6.25±0.46,2.98±0.29,10.77±0.60,and 3.60±0.28μmol/L.

关键词： Chloranthus japonicus Lindenane-type sesquiterpenoid dimers Lipid-lowering activity Anti-inflammatory activity NMR spectroscopy Natural products X-ray diffraction

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High patatin like phospholipase domain containing 8 expression as a biomarker for poor prognosis of colorectal cancer

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 787-797页

作者： Peng-Yang Zhou De-Xiang Zhu Yi-jiao Chen Qing-Yang feng Yi-Hao Mao Ao-Bo Zhuang Jian-Min Xu Department of general Surgery Zhongshan Hospital Fudan UniversityShanghai 200032China

BACKGROUND Patatin like phospholipase domain containing 8(PNPLA8)has been shown to play a significant role in various cancer *** studies have focused on its roles as an antioxidant and in lipid ***,the role of PNPLA8 in colorectal cancer(CRC)progression is *** To explore the prognostic effects of PNPLA8 expression in *** A retrospective cohort containing 751 consecutive CRC patients was ***8 expression in tumor samples was evaluated by immunohistochemistry staining and semi-quantitated with immunoreactive *** patients were divided into high and low PNPLA8 expression groups based on the cut-off va-lues,which were calculated by X-tile *** prognostic value of PNPLA8 was identified using univariate and multivariate Cox regression *** over-all survival(OS)rates of CRC patients in the study cohort were compared with Kaplan-Meier analysis and Log-rank *** PNPLA8 expression was significantly associated with distant metastases in our cohort(P=0.048).CRC patients with high PNPLA8 expression indicated poor OS(median OS=35.3,P=0.005).CRC patients with a higher PNPLA8 expression at either stage I and II or stage III and IV had statistically significant shorter *** patients with left-sided colon and rectal cancer,the survival curves of two PN-PLA8-expression groups showed statistically significant *** analysis also confirmed that high PNPLA8 expression was an independent prog-nostic factor for overall survival(hazard ratio HR=1.328,95%CI:1.016-1.734,P=0.038).

关键词： Biomarker Colorectal cancer Expression level Overall survival Patatin like phospholipase domain containing 8 Prognosis

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Trametinib boosts palbociclib’s efficacy in breast cancer via autophagy inhibition

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Oncology Research 2024年第7期32卷 1197-1207页

作者： ANGUO WU jiao YAN TING SU CHI feng XIN LONG YIRU PAN RUPEI YE TIAN XIA HANAN LONG JIANMING WU XIULI XIAO Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia MedicaKey Laboratory of Medical Electrophysiology of Ministry of EducationSchool of PharmacySouthwest Medical UniversityLuzhou646000China The Department of Pathology The Affiliated Hospital of Southwest Medical UniversityLuzhou646000China The Department of Pathology Mianyang Central HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaMianyang621000China The Department of Pathology Yongchuan Hospital of Chongqing Medical UniversityChongqing402160China School of Basic Medical Sciences Southwest Medical UniversityLuzhou646000China School of Clinical Medical Sciences Southwest Medical UniversityLuzhou646000China

Breast cancer,a predominant global health issue,requires ongoing exploration of new therapeutic ***(PAL),a well-known cyclin-dependent kinase(CDK)inhibitor,plays a critical role in breast cancer *** its efﬁcacy is recognized,the interplay between PAL and cellular autophagy,particularly in the context of the RAF/MEK/ERK signaling pathway,remains insufﬁciently *** study investigates PAL’s inhibitory effects on breast cancer using both in vitro(MCF7 and MDA-MB-468 cells)and in vivo(tumor-bearing nude mice)*** at elucidating the impact of PAL on autophagic processes and exploring the potential of combining it with trametinib(TRA),an MEK inhibitor,our research seeks to address the challenge of PAL-induced drug ***ﬁndings reveal that PAL signiﬁcantly decreases the viability of MCF7 and MDA-MB-468 cells and reduces tumor size in mice while showing minimal cytotoxicity in MCF10A ***,PAL also induces protective autophagy,potentially leading to drug resistance via the RAF/MEK/ERK pathway *** TRA effectively neutralized this autophagy,enhancing PAL’s anti-tumor efﬁcacy.A combination of PAL and TRA synergistically reduced cell viability and proliferation,and in vivo studies showed notable tumor size *** conclusion,the PAL and TRA combination emerges as a promising strategy for overcoming PAL-induced resistance,offering a new horizon in breast cancer treatment.

关键词： Palbociclib Trametinib Protective autophagy RAF/MEK/ERK MCF7 MDA-MB-468

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Polyetherketoneketone/carbon fiber composites with an amorphous interface prepared by solution impregnation

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新型炭材料（中英文） 2024年第4期39卷 692-702页

作者： ZHANG feng LI Bo-lan jiao Meng-xiao LI Yan-bo WANG Xin YANG Yu YANG Yu-qiu ZHANG Xiao-hua MOE Key Laboratory of Textile Science&Technology College of TextilesInnovation Center for Textile Science and TechnologyDonghua UniversityShanghai 201620China Key Laboratory of Carbon Materials National Engineering Laboratory for Carbon Fiber TechnologyInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China

Interfacial adhesion between carbon fibers(CF)and polyetherketoneketone(PEKK)is a key factor that affects the mechanical performances of their *** is therefore of great importance to impregnate the CF bundles with PEKK as effi-ciently as *** report that PEKK with a good dispersion in a mixed solution of 4-chlorophenol and 1,2-dichloroethane can be introduced onto CF surfaces by solution impregnation and curing at 280,320,340 and 360℃.The excellent wettability or infiltra-tion of the PEKK solution guarantees a full covering and its tight binding to CFs,making it possible to evaluate the interfacial shear strength(IFSS)with the microdroplet *** interior of the CF bundles is completely and uniformly filled with PEKK by solu-tion impregnation,leading to a high interlaminar shear strength(ILSS).The maximum IFSS and ILSS reached 107.8 and 99.3 MPa,*** superior shear properties are ascribed to the formation of amorphous PEKK in the small spaces between CFs.

关键词： Polyetherketoneketone Carbon fiber Wettability Amorphous adhesion Interfacial strength

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A seismic elastic moduli module for the measurements of low-frequency wave dispersion and attenuation of fluid-saturated rocks under different pressures

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Petroleum Science 2024年第1期21卷 162-181页

作者： Yan-Xiao He Shang-Xu Wang gen-Yang Tang Chao Sun Hong-Bing Li San-Yi Yuan Xian Wei Li-Deng Gan Xiao-feng Dai Qiang Ge Peng-Peng Wei Hui-Qing Zhang National Key Laboratory of Petroleum Resources and Engineering CNPC Key Lab of Geophysical ExplorationCollege of GeophysicsChina University of Petroleum(Beijing)Beijing102249China School of Resources and Geosciences China University of Mining and TechnologyXuzhou221116JiangsuChina Research Institute of Petroleum Exploration and Development CNPCBeijing100083China Beijing Vocational College of Labour and Social Security Beijing100029China PetroChina Dagang Oilfield Exploration and Development Research Institute CNPCTianjin300280China

Knowledge about the seismic elastic modulus dispersion,and associated attenuation,in fluid-saturated rocks is essential for better interpretation of seismic observations taken as part of hydrocarbon identification and time-lapse seismic surveillance of both conventional and unconventional reservoir and overburden performances.A Seismic Elastic Moduli Module has been developed,based on the forced-oscillations method,to experimentally investigate the frequency dependence of Young's modulus and Poisson's ratio,as well as the inferred attenuation,of cylindrical samples under different confining pressure *** with three standard samples showed that the measured elastic moduli were consistent with the published data,indicating that the new apparatus can operate reliably over a wide frequency range of f∈[1-2000,10^(6)]*** Young's modulus and Poisson's ratio of the shale and the tight sandstone samples were measured under axial stress oscillations to assess the frequency-and pressure-dependent *** dry condition,both samples appear to be nearly frequency independent,with weak pressure dependence for the shale and significant pressure dependence for the *** particular,it was found that the tight sandstone with complex pore microstructure exhibited apparent dispersion and attenuation under brine or glycerin saturation conditions,the levels of which were strongly influenced by the increased effective *** addition,the measured Young's moduli results were compared with the theoretical predictions from a scaled poroelastic model with a reasonably good agreement,revealing that the combined fluid flow mechanisms at both mesoscopic and microscopic scales possibly responsible for the measured dispersion.

关键词： Low-frequency measurements Dispersion and attenuation Rock physics Fluid flow

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Possibility of reaching the predicted center of the “island of stability” via the radioactive beam-induced fusion reactions

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Nuclear Science and Techniques 2024年第09期 200-209页

作者： Ming-Hao Zhang Ying Zou Mei-Chen Wang gen Zhang Qing-Lin Niu feng-Shou Zhang The Key Laboratory of Beam Technology of Ministry of Education School of Physics and Astronomy Beijing Normal University Institute of Radiation Technology Beijing Academy of Science and Technology School of Physical Science and Technology Guangxi University Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion Accelerator of Lanzhou

Based on the dinuclear system model,the synthesis of the predicted double-magic nuclei298Fl and304120 was investigated via neutron-rich radioactive beam-induced fusion *** reaction58Ca+244Pu is predicted to be favorable for producing298Fl with a maximal ER cross section of 0.301 *** of the entrance channel effect reveal that the244Pu target is more promising for synthesizing298Fl than the neutron-rich targets248Cm and249Bk,because of the influence of the Coulomb *** the synthesis of304120,the maximal ER cross section of 0.046 fb emerges in the reaction58V+249Bk,indicating the need for further advancements in both experimental facilities and reaction mechanisms.

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Effectiveness and safety of combined nimotuzumab and S-1 chemotherapy with concurrent radiotherapy for locally advanced esophageal cancer in malnourished and elderly patients:A prospective phaseⅡstudy

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Chinese Journal of Cancer Research 2024年第3期36卷 270-281页

作者： Guojie feng jiao Li Nuo Yu Ziyu Zheng Xiongtao Yang Lei Deng Tao Zhang Wenqing Wang Wenyang Liu Jianyang Wang Qinfu feng Jima Lyu Zefen Xiao Zongmei Zhou Nan Bi Jianjun Qin Xin Wang Department of Radiation Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100021China Department of Thoracic Surgery National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100021China

Objective:Definitive chemoradiotherapy(dCRT)is the standard treatment for unresectable locally advanced esophageal ***,this treatment is associated with substantial toxicity,and most malnourished or elderly patients are unable to complete this ***,there is a need for a more suitable radiotherapy combination regimen for this *** study was aimed to evaluate the efficacy and safety of a combination regimen comprising chemotherapy with nimotuzumab and S-1 and concurrent radiotherapy for patients with fragile locally advanced esophageal cancer with a high Nutritional Risk Screening 2002(NRS-2002)***:Eligible patients with unresectable esophageal carcinoma who had an NRS-2002 score of 2 or higher were *** were treated with S-1 and nimotuzumab with concurrent radiotherapy,followed by surgery or definitive *** primary endpoint was the locoregional control(LRC)***:A total of 55 patients who met the study criteria were *** completion of treatment,surgery was performed in 15 patients and radiotherapy was continued in 40 *** median follow-up period was 33.3[95%confidence interval(95%CI,31.4−35.1)]*** LRC rate was 77.2%(95%CI,66.6%−89.4%)at 1 year in the entire *** overall survival(OS)rate and event-free survival(EFS)rate were 57.5%and 51.5%at 3 years,*** was associated with better LRC[hazard ratio(HR)=0.16;95%CI,0.04−0.70;P=0.015],OS(HR=0.19;95%CI,0.04−0.80;P=0.024),and EFS(HR=0.25;95%CI,0.08−0.75;P=0.013).Most adverse events were of grade 1 or 2,and no severe adverse events ***:For malnourished or elderly patients with locally advanced esophageal cancer,radiotherapy combined with nimotuzumab and S-1 is effective and has a good safety profile.

关键词： Esophageal carcinoma squamous cell carcinoma nutritional risk score nimotuzumab S-1 definitive chemoradiotherapy

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