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Corrugated Graphene Paper Reinforced Silicone Resin Composite for Efficient Interface Thermal Management

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Chinese Journal of Polymer Science 2024年第7期42卷 1002-1014,I0010页

作者： bo-wen wang Heng Zhang Qing-Xia He Hui-Tao Yu Meng-Meng Qin wei feng Tianjin Key Laboratory of Composite and Functional Materials School of Materials Science and EngineeringTianjin UniversityTianjin300350China International Engineering Institute Tianjin UniversityTianjin300350China

With the rapid development of high-power-density electronic devices,interface thermal resistance has become a critical barrier for effective heat management in high-performance electronic ***,there is an urgent demand for advanced thermal interface materials(TIMs)with high cross-plane thermal conductivity and excellent compressibility to withstand increasingly complex operating *** achieve this aim,a promising strategy involves vertically arranging highly thermoconductive graphene on ***,with the currently available methods,achieving a balance between low interfacial thermal resistance,bidirectional high thermal conductivity,and large-scale production is ***,we prepared a graphene framework with continuous filler structures in in-plane and cross-plane directions by bonding corrugated graphene to planar graphene *** interface interaction between the graphene paper framework and polymer matrix was enhanced via surface functionalization to reduce the interface thermal *** resulting three-dimensional thermal framework endows the polymer composite material with a cross-plane thermal conductivity of 14.4 W·m^(-1)·K^(-1)and in-plane thermal conductivity of 130W·m^(-1)·K^(-1)when the thermal filler loading is 10.1 wt%,with a thermal conductivity enhancement per 1 wt%filler loading of 831%,outperforming various graphene structures as *** its high thermal conductivity,low contact thermal resistance,and low compressive modulus,the developed highly thermoconductive composite material demonstrates superior performance in TIM testing compared with TFLEX-700,an advanced commercial TIM,effectively solving the interfacial heat transfer issues in electronic *** novel filler structure framework also provides a solution for achieving a balance between efficient thermal management and ease of processing.

关键词： Graphene paper Vertically aligned structure Cross-plane thermal conductivity Low compressive modulus Thermal interface material

MicroRNAs:A novel signature in the metastasis of esophageal squamous cell carcinoma

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World Journal of Gastroenterology 2024年第11期30卷 1497-1523页

作者： Qi-Ying wei feng Jin Zhong-Yu wang Bing-Jie Li wen-bo cao Zhi-Yan Sun Sai-Jun Mo Department of Pathophysiology School of Basic Medical SciencesZhengzhou UniversityZhengzhou 450001Henan ProvinceChina Department of Perioperative Medicine The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina Division of Special Service Department of Basic OncologySchool of Basic MedicineZhengzhou UniversityZhengzhou 450001Henan ProvinceChina Department of Basic Science of Oncology School of Basic Medical SciencesZhengzhou UniversityZhengzhou 450001Henan ProvinceChina

Esophageal squamous cell carcinoma(ESCC)is a malignant epithelial tumor,characterized by squamous cell differentiation,it is the sixth leading cause of cancer-related deaths *** increased mortality rate of ESCC patients is predominantly due to the advanced stage of the disease when discovered,coupled with higher risk of metastasis,which is an exceedingly malignant charac-teristic of cancer,frequently leading to a high mortality ***,there is currently no specific and effective marker to predict and treat metastasis in ***(miRNAs)are a class of small non-coding RNA molecules,approximately 22 nucleotides in *** are vital in modulating gene expression and serve pivotal regulatory roles in the occurrence,progression,and prognosis of ***,we have examined the literature to highlight the intimate correlations between miRNAs and ESCC metastasis,and show that ESCC metastasis is predominantly regulated or regulated by genetic and epigenetic *** review proposes a potential role for miRNAs as diagnostic and therapeutic biomarkers for metastasis in ESCC metastasis,with the ultimate aim of reducing the mortality rate among patients with ESCC.

关键词： MicroRNAs Esophageal squamous cell carcinoma Metastasis Signaling pathway Epigenetics mechanism

Fanlian Huazhuo Formula alleviates high-fat diet-induced nonalcoholic fatty liver disease by modulating autophagy and lipid synthesis signaling pathway

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World Journal of Gastroenterology 2024年第30期30卷 3584-3608页

作者： Meng-Yuan Niu Geng-Ting Dong Yi Li Qing Luo Liu cao Xi-Min wang Qi-wen wang Yi-Ting wang Zhe Zhang Xi-wen Zhong wei-bo Dai Le-Yu Li Pharmacology Laboratory Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese MedicineZhongshan 528400Guangdong ProvinceChina Department of Endocrinology Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese MedicineZhongshan 528400Guangdong ProvinceChina

BACKGROUND Fanlian Huazhuo Formula(FLHZF)has the functions of invigorating spleen and resolving phlegm,clearing heat and purging *** has been identified to have therapeutic effects on type 2 diabetes mellitus(T2DM)in clinical ***-alcoholic fatty liver disease(NAFLD)is frequently diagnosed in patients with ***,the therapeutic potential of FLHZF on NAFLD and the underlying mechanisms need further *** To elucidate the effects of FLHZF on NAFLD and explore the underlying hepatoprotective mechanisms in vivo and in *** HepG2 cells were treated with free fatty acid for 24 hours to induce lipid accumulation cell ***,experiments were conducted with the different concentrations of freeze-dried powder of FLHZF for 24 hours.C57BL/6 mice were fed a high-fat diet for 8-week to establish a mouse model of NAFLD,and then treated with the different concentrations of FLHZF for 10 *** FLHZF had therapeutic potential against lipid accumulation and abnormal changes in biochemical indicators in vivo and in *** experiments verified that FLHZF alleviated abnormal lipid metabolism might by reducing oxidative stress,regulating the AMPKα/SREBP-1C signaling pathway,activating autophagy,and inhibiting hepatocyte *** FLHZF alleviates abnormal lipid metabolism in NAFLD models by regulating reactive oxygen species,autophagy,apoptosis,and lipid synthesis signaling pathways,indicating its potential for clinical application in NAFLD.

关键词： Fanlian Huazhuo Formula Nonalcoholic fatty liver disease Autophagy Apoptosis AMPKα/SREBP-1C signal pathway Oxidative stress

Black holes as the source of dark energy:A stringent test with high-redshift JWST AGNs

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 181-188页

作者： Lei Lei Lei Zu Guan-wen Yuan Zhao-Qiang Shen Yi-Ying wang Yuan-Zhu wang Zhen-bo Su wen-Ke Ren Shao-Peng Tang Hao Zhou Chi Zhang Zhi-Ping Jin Lei feng Yi-Zhong Fan Da-Ming wei Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China CAS Key Laboratory for Research in Galaxies and Cosmology Department of AstronomyUniversity of Science and Technology of ChinaHefei 230026China

Studies have proposed that there is evidence for cosmological coupling of black holes(BHs)with an index of k≈3;hence,BHs serve as the astrophysical source of dark ***,the data sample is limited for the redshifts of≤*** recent years,the James Webb Space Telescope(JWST)has detected many high-redshift active galactic nuclei(AGNs)and *** the JWST NIRSpec-/NIRCam-resolved AGNs,three are determined to be in early-type host galaxies with a redshift of z~***,their M_(*)and MBH are in tension with the predicted cosmological coupling of black holes with k=3 at a confidence level of~2σ,which challenges the hypothesis that BHs serve as the origin of dark *** work on high-redshift AGNs using the JWST will further assess such a hypothesis by identifying more early-type host galaxies in the higher mass range.

关键词： dark energy supermassive black hole active galactic nuclei James Webb Space Telescope

Specific metabolic impairments indicate loss of sustained liver improvements in metabolic dysfunction-associated steatotic liver disease treatment

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Hepatobiliary Surgery and Nutrition 2024年第4期13卷 632-649,I0025-I0035页

作者： Ling Luo Junzhao Ye Shuyu Zhuo bo Ma weiyi Mai Xiaopei cao Liuqin Liang wei wang Shiting feng Zhi Dong Bihui Zhong Department of Gastroenterology The First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina Department of Nutrition The First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina Department of Gastroenterology The East Division of the First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina Department of Cardiology The First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina Department of Endocrinology The First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina Department of Rheumatology The First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina Department of Ultrasound The First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina Department of Radiology The First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina

Background:High liver fat content(LFC)induces increased risks of both hepatic and extrahepatic progression in metabolic dysfunction-associated steatotic liver disease(MASLD),while maintaining a significant decline in magnetic resonance imaging-based proton density fat fraction(MRI-PDFF)(≥30%decline relative to baseline)without worsening fibrosis results in improved histological severity and ***,the factors associated with the loss of sustained responses to treatment remain unclear,and we aim to identify ***:Consecutive treatment-naïve MASLD patients between January 2015 and February 2022,with follow-up until April 2023,were included in this prospective cohort *** quantified by MRI-PDFF and liver stiffness measurements(LSM)determined by two-dimensional shear wave elastography(2D-SWE)were evaluated at weeks 0,24 and ***-PDFF response was defined as a≥30%relative decline in PDFF values,and LSM response was defined as a≥1 stage decline from ***:A total of 602 MASLD patients were *** the 303 patients with a 24-week MRI-PDFF response and complete follow-up of 48 weeks,the rate of loss of MRI-PDFF response was 29.4%,and multivariable logistic regression analyses showed that 24-week insulin resistance(IR),still regular exercise and caloric restriction after 24 weeks,and the relative decline in LFC were risk factors for loss of MRI-PDFF *** of LSM response at 48 weeks occurred in 15.9%of patients,and multivariable analysis confirmed 24-week serum total bile acid(TBA)levels and the relative decline in TBA from baseline as independent *** significant association was found at 48 weeks between loss of MRI-PDFF response and loss of LSM ***:MASLD patients with IR and high TBA levels are at higher risks of subsequent diminished sustained improvements of steatosis and fibrosis,respectively.

关键词： Metabolic dysfunction-associated steatotic liver disease(MASLD) loss of response magnetic resonance imaging-based proton density fat fraction response(MRI-PDFF response) liver stiffness measurements response(LSM response)

Atom-referenced and stabilized soliton microcomb

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 2-8页

作者： Rui Niu Shuai Wan Tian-Peng Hua wei-Qiang wang Zheng-Yu wang Jin Li Zhu-bo wang Ming Li Zhen Shen Yu Robert Sun Shui-Ming Hu Brent ELittle Sai Tak Chu wei Zhao Guang-Can Guo Chang-Ling Zou Yun-feng Xiao wen-Fu Zhang Chun-Hua Dong State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China University of Chinese Academy of Sciences Beijing 100049China Department of Chemical Physics University of Science and Technology of ChinaHefei 230026China Department of Physics and Materials Science City University of Hong KongHong Kong 999077China State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China

For the applications of the frequency comb in microresonators,it is essential to obtain a fully frequency-stabilized microcomb laser *** this study,we present a system for generating a fully atom-referenced stabilized soliton *** pump light around 1560.48 nm is locked to an ultra-low-expansion(ULE)*** pump light is then frequency-doubled and referenced to the atomic transition *** repetition rate of the soliton microcomb is injection-locked to an atomic-clockstabilized radio frequency(RF)source,leading to mHz stabilization at 1 *** a result,all comb lines have been frequencystabilized based on the atomic reference and the ULE cavity,achieving a very high precision of approximately 18 Hz at 1 s,corresponding to the frequency stability of 9.5×10^(-14).Our approach provides a fully stabilized microcomb experiment scheme with no requirement of f-2f technique,which could be easily implemented and generalized to various photonic platforms,thus paving the way towards the ultraprecise optical sources for high precision spectroscopy.

关键词： microcavity frequency comb dissipative Kerr solitons fully stabilized microcomb

Prospect of ultrahigh-resolution fast neutron absorption spectroscopy based on a laser plasma electron accelerator

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High Power Laser Science and Engineering 2024年第1期12卷 108-115页

作者： wen-Zhao wang Jie feng Xiao-Peng Zhang Yao-Jun Li wei-Jun Zhou wen-Chao Yan Guo-Qiang Zhang Chang-bo Fu Li-Ming Chen Key Laboratory of Laser Plasma(MoE) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina IFSA Collaborative Innovation Center Shanghai Jiao Tong UniversityShanghaiChina Institute of High Energy Physics Chinese Academy of SciencesBeijingChina Shanghai Advanced Research Institute Chinese Academy of SciencesShanghaiChina Key Laboratory of Nuclear Physics and Ion-beam Application(MoE) Institute of Modern PhysicsFudan UniversityShanghaiChina

Fast neutron absorption spectroscopy is widely used in the study of nuclear structure and element analysis. However,due to the traditional neutron source pulse duration being of the order of nanoseconds, it is difficult to obtain a high-resolution absorption spectrum. Thus, we present a method of ultrahigh energy-resolution absorption spectroscopy via a high repetition rate, picosecond duration pulsed neutron source driven by a terawatt laser. The technology of single neutron count is used, which results in easily distinguishing the width of approximately 20 keV at 2 MeV and an asymmetric shape of the neutron absorption peak. The absorption spectroscopy based on a laser neutron source has one order of magnitude higher energy-resolution power than the state-of-the-art traditional neutron sources, which could be of benefit for precisely measuring nuclear structure data.

关键词： fast neutron absorption spectroscopy laser plasma accelerator photo-nuclear neutrons single neutron count

Plerixafor-based mobilization and mononuclear cell counts in graft increased the risk of engraftment syndrome after autologous hematopoietic stem cell transplantation

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Blood Science 2024年第3期6卷 48-54页

作者： Le-Qing cao Qi wen bo-Ning Liu Zhen-Yu Zhao Xiao-Hui Zhang Lan-Ping Xu Huan Chen Yu wang Lu Yu feng-Rong wang Xiao-Jun Huang Xiao-Dong Mo Peking University People’s Hospital Peking University Institute of HematologyNational Clinical Research Center for Hematologic DiseaseBeijing Key Laboratory of Hematopoietic Stem Cell TransplantationBeijingChina Hainan General Hospital Hainan Affiliated Hospital of Hainan Medical UniversityHaikouChina Peking-Tsinghua Center for Life Sciences Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijingChina Research Unit of Key Technique for Diagnosis and Treatments of Hematologic Malignancies Chinese Academy of Medical SciencesBeijing 2019RU029China

Engraftment syndrome(ES)is one of the most common complications in the early phase after autologous hematopoietic stem cell transplantation(ASCT),and we aimed to evaluate the incidence and risk factors for ES patients receiving ASCT in the era of plerixafor-based mobilization.A total of 294 were enrolled,and 16.0%(n=47)experienced ES after *** main clinical manifestations were fever(100%),diarrhea(78.7%),skin rash(23.4%),and hypoxemia/pulmonary edema(12.8%).Plerixafor-based mobilization was associated with higher counts of CD3^(+)cells,CD4^(+)cells,and CD8^(+)cells in *** univariate analysis of the total cohort,age≥60 years,receiving ASCT at complete remission(CR),higher number of mononuclear cell(MNC),CD3^(+)cell counts,CD4^(+)cells as well as CD8^(+)cells transfused and plerixafor-based mobilization were associated with ES after *** analysis showed that age≥60 years(P=0.0014),receiving ASCT at CR(P=0.002),and higher number of MNC transfused(P=0.026)were associated with ES in total *** plasma cell disease subgroup,age≥60 years(P=0.013),plerixafor-based mobilization(P=0.036),and receiving ASCT at CR(P=0.002)were associated with *** with more risk factors had a higher risk of *** 1-year probabilities of relapse,non-relapse mortality,and survival were comparable between patients with and without ***,plerixafor-based mobilization may influence the composition of T lymphocytes in grafts and increase the risk of ES,particularly in patients with plasma cell disease.

关键词： Autologous stem cell transplantation Engraftment syndrome Plerixafor Risk factors

Measurement of the neutron-induced total cross sections of ^(nat)Pb from 0.3 eV to 20 MeV on the Back-n at CSNS

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Nuclear Science and Techniques 2024年第2期35卷 85-93页

作者： Jie-Ming Xue Song feng Yong-Hao Chen Han Yi Min Xiao Pin-Jing Cheng Xin-Xiang Li Rong Liu Yi-wei Yang Zi-Jie Han Da-Jun Zhao Hao-Qiang wang Bao-Qian Li Ji-Rong Zhao Lei-Xun Tang wen Luo bo Zheng School of Nuclear Science and Technology University of South ChinaHengyang 421001China Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China

The neutron-induced total cross sections of natural lead have been measured in a wide energy range(0.3 eV-20 MeV)on the back-streaming white neutron beamline(Back-n)at the China Spallation Neutron *** energy was determined by the neutron total cross-section spectrometer using the time-of-flight technique.A fast multi-cell fission chamber was used as the neutron detector,and a 10-mm-thick high-purity natural lead sample was employed for the neutron transmission *** on-beam background was determined using Co,In,Ag,and Cd *** excitation function of ^(nat)Pb(n,tot)reaction below 20 MeV was calculated using the TALYS-1.96 nuclear-reaction modeling *** present results were compared with previous results,the evaluated data available in the five major evaluated nuclear data libraries(i.e.,ENDF/B-VIII.0,JEFF-3.3,JENDL-5,CENDL-3.2,and BROND-3.1),and the theoretical calculation *** agreement was found between the new results and those of previous experiments and with the theoretical curves in the corresponding *** measurement obtained the neutron total cross section of natural lead with good accuracy over a wide energy range and added experimental data in the resonance energy *** provides more reliable experimental data for nuclear engineering design and nuclear data evaluation of lead.

关键词： Neutron-induced total cross section Natural lead Time-of-flight TALYS-1.96 CSNS Back-n white neutron beamline