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Efficient and Fast X-Ray Luminescence in Organic Phosphors Through High-Level Triplet-Singlet Reverse Intersystem Crossing

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CCS Chemistry 2024年第2期6卷 334-341页

作者： Yang Zhang Minghong chen Xiaoze Wang Miao lin Hongyu Wang Weihong Li Fuhai chen Qing Liao Hongming chen Qiushui chen Meijin lin Huanghao Yang Key Laboratory of Molecule Synthesis and Function Discovery College of ChemistryFuzhou UniversityFuzhouFujian 350116 New Cornerstone Science Laboratory MOE Key Laboratory for Analytical Science of Food Safety and BiologyCollege of ChemistryFuzhou UniversityFuzhouFujian 350108 College of Materials Science and Engineering Fuzhou UniversityFuzhouFujian 350116

Organic scintillators that efficiently generate bright triplet excitons are of critical importance for highperformance X-ray-excited luminescence in radiation ***,the nature of triplet-singlet spinforbidden transitions in these materials often result in long-lived phosphorescence,which is undesirable for ultrafast X-ray detection and *** we demonstrate that the effect of hybridized local and charge-transfer(HLCT)excited states enables organic scintillators to exhibit highly efficient and fast radioluminescence(RL)in response to X-ray *** experimental and theoretical investigation shows that the oxidized 1,8-naphthalimide-phenothiazine dyad(OMNI-PTZ 2)with HLCT-excited states has an enhanced overlap integral of the highest occupied molecular orbital(HOMO)and lowest unoccupied molecular orbital(LUMO)on MNIπ-orbitals,and moderate donor–acceptor electron *** a result,the RL of these crystals exhibits a 61-fold increase and its monoexponential decay lifetime is three orders of magnitude faster compared to its corresponding thermally activated delayed fluorescence(TADF)molecule MNI-PTZ *** further demonstrate the practical utility of the OMNI-PTZ 2(G)in high-performance X-ray detection and imaging,achieving an X-ray dose sensitivity of 97 nGy s−1 and an exceptional spatial resolution of 20 lp/*** study provides a promising molecular design principle for utilizing triplet excitons to develop high-efficiency and fast X-ray scintillators for the development of next-generation flexible and stretchable X-ray imaging detectors.

关键词： organic scintillators X-ray imaging hybridized local and charge transfer excited state triplet-singlet reverse intersystem crossing high exciton utilization

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CMMCAN:Lightweight Feature Extraction and Matching Network for Endoscopic Images Based on Adaptive Attention

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Computers, Materials & Continua 2024年第8期80卷 2761-2783页

作者： Nannan chong Fan Yang School of Electronic and Information Engineering Hebei University of TechnologyTianjin300401China School of Information and Intelligence Engineering Tianjin Renai CollegeTianjin301636China

In minimally invasive surgery,endoscopes or laparoscopes equipped with miniature cameras and tools are used to enter the human body for therapeutic purposes through small incisions or natural ***,in clinical operating environments,endoscopic images often suffer from challenges such as low texture,uneven illumination,and non-rigid structures,which affect feature observation and *** can severely impact surgical navigation or clinical diagnosis due to missing feature points in endoscopic images,leading to treatment and postoperative recovery issues for *** address these challenges,this paper introduces,for the first time,a Cross-Channel Multi-Modal Adaptive Spatial Feature Fusion(ASFF)module based on the lightweight architecture of ***,a novel lightweight feature extraction and matching network based on attention mechanism is *** network dynamically adjusts attention weights for cross-modal information from grayscale images and optical flow images through a dual-branch Siamese *** extracts static and dynamic information features ranging from low-level to high-level,and from local to global,ensuring robust feature extraction across different widths,noise levels,and blur *** and local matching are performed through a multi-level cascaded attention mechanism,with cross-channel attention introduced to simultaneously extract low-level and high-level *** ablation experiments and comparative studies are conducted on the HyperKvasir,EAD,M2caiSeg,CVC-ClinicDB,and UCL synthetic *** results demonstrate that the proposed network improves upon the baseline EfficientViT-B3 model by 75.4%in accuracy(Acc),while also enhancing runtime performance and storage *** compared with the complex DenseDescriptor feature extraction network,the difference in Acc is less than 7.22%,and IoU calculation results on specific datasets outperform complex dense ***

关键词： Feature extraction and matching lightweighted network medical images endoscopic attention

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Effect of Texture on the Grain-Size-Dependent Functional Properties of NiTi Shape Memory Alloys and Texture Gradient Design:A Phase Field Study

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Acta Mechanica Solida Sinica 2024年第1期37卷 10-32页

作者： Bo Xu Beihai Huang chong Wang Qingyuan Wang Failure Mechanics and Engineering Disaster Prevention Key Laboratory of Sichuan ProvinceSichuan UniversityChengdu 610065China Department of Mechanical Science and Engineering College of Architecture and EnvironmentSichuan UniversityChengdu 610065China Key Laboratory of Deep Underground Science and Engineering Ministry of EducationSichuan UniversityChengdu 610065China

Texture is inevitably introduced during the manufacturing of most NiTi shape memory alloys(SMAs),and the textured nanocrystalline NiTi has been extensively employed in ***,the effect of texture,and the joint effect of grain size(GS)and texture on the functional properties of NiTi SMAs and the corresponding microscopic mechanisms have not been clearly understood *** this work,based on the phase field method,the effect of texture on the GS-dependent functional properties of NiTi SMAs,including super-elasticity(SE),one-way shape memory effect(OWSME),and stress-assisted two-way shape memory effect(SATWSME),is investigated,and the corresponding microscopic mechanisms are ***,the samples with discrete geometrical gradients and/or texture gradients are designed to achieve graded functional *** simulation results indicate that the dependence of functional properties on texture is due to the effect of crystallographic orientation on martensite transformation and reorientation,which can lead to different inelastic *** the designed samples with texture gradients,the stress–strain responses of sheets with various textures are different,allowing for the coordination of overall deformation of the sample by combining such sheets,with varying inelastic deformation ***,the overall response of the sample differs from that without texture gradient,leading to the achievement of graded functional *** simulation results and new findings in this work contribute to a deeper understanding of the effects of texture,GS,and their interaction on the functional properties of SMAs,and provide valuable reference for the design and development of SMA-based devices with desired functional properties.

关键词： Phase field NiTi shape memory alloy Texture Grain size Functional property Texture gradient

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Carrimycin ameliorates lipopolysaccharide and cecal ligation and puncture-induced sepsis in mice

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Chinese Journal of Natural Medicines 2024年第3期22卷 235-248页

作者： LAI Junzhong LIANG Jiadi chen Kunsen GUAN Biyun chen Zhirong chen linqin FAN Jiqiang ZHANG Yong LI Qiumei SU Jingqian chen Qi lin Jizhen The Cancer Center Fujian Medical University Union HospitalFuzhou 350001China Fujian Key Laboratory of Innate Immune Biology Biomedical Research Center of South ChinaFujian Normal UniversityFuzhou 350117China The Department of Otolaryngology Head&Neck SurgeryUniversity of Minnesota Medical SchoolMinneapolisMN 55455USA

Carrimycin(CA),sanctioned by China’s National Medical Products Administration(NMPA)in 2019 for treating acute bronchitis and sinusitis,has recently been observed to exhibit multifaceted biological activities,encompassing anti-inflammatory,antiviral,and anti-tumor *** these applications,its efficacy in sepsis treatment remains *** study introduces a novel function of CA,demonstrating its capacity to mitigate sepsis induced by lipopolysaccharide(LPS)and cecal ligation and puncture(CLP)in mice *** research employed in vitro assays,real-time quantitative polymerase chain reaction(RT-qPCR),and RNA-seq analysis to establish that CA significantly reduces the levels of pro-inflammatory cytokines,namely tumor necrosis factor-alpha(TNF-α),interleukin 1 beta(IL-1β),and interleukin 6(IL-6),in response to LPS ***,Western blotting and immunofluorescence assays revealed that CA impedes Nuclear Factor Kappa B(NF-κB)activation in LPS-stimulated RAW264.7 *** these findings,in vivo experiments demonstrated that CA effectively alleviates LPS-and CLP-triggered organ inflammation in C57BL/6 *** insights were gained through 16S sequencing,highlighting CA’s pivotal role in enhancing gut microbiota diversity and modulating metabolic pathways,particularly by augmenting the production of short-chain fatty acids in mice subjected to ***,a comparative analysis revealed that CA’s anti-inflammatory efficacy surpasses that of equivalent doses of aspirin(ASP)and ***,these findings suggest that CA exhibits significant therapeutic potential in sepsis *** discovery provides a foundational theoretical basis for the clinical application of CA in sepsis management.

关键词： Carrimycin Inflammation Lipopolysaccharide Cecal ligation and puncture Sepsis Gut microbiota

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Efficacy and safety of utidelone for the treatment of patients with locally advanced or metastatic non-small-cell lung cancer who have failed standard second-line treatment:A phase 2 clinical trial(BG01-1801)

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Cancer Pathogenesis and Therapy 2024年第2期2卷 103-111页

作者： Yuankai Shi Gongyan chen Yanqiu Zhao Jing Zhao lin lin Department of Medical Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing Key Laboratory of Clinical Study On Anticancer Molecular Targeted DrugsBeijing 100021China Department of Respiration Harbin Medical University Cancer HospitalHarbinHeilongjiang 150040China Respiratory Department of Internal Medicine Henan Provincial Cancer HospitalZhengzhouHenan 450003China Department of Pulmonary and Critcal Care Medicine Peking Union Medical College HospitaChinese Academy of Medical Sciences&Peking Union Medical College Beijing100021China

Background:Chemotherapy remains the standard-of-care for many patients with locally advanced or metastatic non-small-cell lung cancer(NSCLC),but acquired resistance presents *** aim of this open-label,multicenter phase 2 clinical trial was to determine the efficacy and safety of utidelone,a novel genetically engineered epothilone analog and microtubule-stabilizing agent,as a third-or later-line treatment for locally advanced ormetastatic ***:Patients who had failed standard second-line treatment(including platinum-containing chemotherapy or targeted therapy)received utidelone(40 mg/m?via intravenous injection daily,day 1-5)every 21 *** primary endpoint was the objective response rate(ORR).Secondary endpoints were the duration of response(DoR),progression-free survival(PFS),overall survival(OS),and ***:From March 12,2019 to January 18,2021,26 pretreated patients with locally advanced or metastatic NSCLC(100%of patients had received prior platinum and 65.4%patients had received prior taxane treatment)were enrolled(80.8%of patients had adenocarcinoma).At baseline,nine(34.6%)patients had received secondline treatment,10(38.5%)patients had received third-line treatment,and seven(26.9%)patients had received fourth-or later-line *** the data cut-off date of August 10,2021,the median follow-up was 7.49 months(range,1.4-26.7 months).The ORR was 15.4%(95%confidence interval[CI],4.4%-34.9%)in the intention-totreat(ITT)cohort(N=26)and 19.0%(95%CI,5.4%-41.9%)in the per-protocol(PP)cohort(N=21).The disease control rate was 69.2%(95%CI,48.2%-85.7%)and 81.0%(95%CI,58.1%-94.6%)in the ITT and PP cohorts,*** median DoR was 4.1 months(95%CI,3.1-5.1 months)in the ITT *** median PFS was 4.37 months(95%CI,2.50-5.29 months)in the ITT cohort and 4.37 months(95%CI,2.50-9.76 months)in the PP *** median OS was not reached,and the 12-month OS rate was 69%(95%CI,45.1%-84.1%).Grade 3/4 treatment-emergent adverse events occur

关键词： Utidelone Locally advanced or metastatic non-small-cell lung cancer Efficacy Platinum-and taxane-refractory

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Tailoring the Microstructure and Mechanical Property of Mg-Zn Matrix Composite via the Addition of Al Element

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Acta Metallurgica Sinica(English Letters) 2024年第3期37卷 438-452页

作者： chong Wang Fuyuan Liu Xuejian Wang Enyu Guo Zelong Du Kunkun Deng Zongning chen Huijun Kang Guohao Du Tongmin Wang Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province) School of Materials Science and EngineeringDalian University of TechnologyDalian 116024China School of Mechanical Engineering Guizhou UniversityGuiyang 550025China Ningbo Institute of Dalian University of Technology Ningbo 315000China Shanxi Key Laboratory of Advanced Magnesium-Based Materials College of Materials Science and EngineeringTaiyuan University of TechnologyTaiyuan 030024China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute CASShanghai 201204China

The semi-solid stir casting method is adopted to prepare 10 wt%SiC_(p)/Mg-6Zn-0.5Ca-xAl(x=0,1,3 and 5 wt%)composites,and the microstructure evolution and mechanical property of composites with various Al content are *** results show that the addition of 3 wt%Al improves the distribution of SiC_(p),whereas the SiC_(p) cluster occurs again with Al content greater than 3%.An abnormal phenomenon of twinning is observed in the cast composites in this *** SiC_(p)/Mg-6Zn-0.5Ca composite possesses the highest twin content of~23%,for which tension twins(TTW)and compression twins(CTW)account for~19%and~3%,*** CTW is only observed in ZXA600 *** addition of Al has an inhibiting effect for the generation and growth of *** content of twin decreases firstly and then increases with increase of Al *** lowest twin content is obtained as Al increases to 3 wt%.It is found the existence of twin is detrimental to the mechanical property of ***-cast SiC_(p)/Mg-6Zn-0.5Ca-3Al composite with the lowest twin content exhibits the optimal mechanical property of yield strength,ultimate tensile strength and elongation for 100 MPa,188 MPa and 4.4%,*** outstanding mechanical property is attributed to the uniform distribution of SiC_(p),the low twin content and the well-distributed fine second phases.

关键词： Mg matrix composite Synchrotron tomography Twinning Liquid melt processing Mechanical property

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LncRNA LOC103694972 promotes fibrosis of NRK-49F cells by regulating STAT3-dependent Smad/CTGF pathway via targeting miR-29c-3p

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BIOCELL 2024年第3期48卷 501-511页

作者： YAN LI HUZHI CAI XIAOlinG PENG YOUHUI LIU QINGYANG chen XIANGDONG lin XINYU chen Department of Vascular and Tumor Intervention The First Hospital of Hunan University of Chinese MedicineChangsha410007China Department of Intensive Care Unit The First Hospital of Hunan University of Chinese MedicineChangsha410007China Department of Nursing Research The First Hospital of Hunan University of Chinese MedicineChangsha410007China Department of Intensivie Care Unit The First Hospital of Hunan University of Chinese MedicineChangsha410007China Department of Endocrinology The First Hospital of Hunan University of Chinese MedicineChangsha410007China Department of Preventive Treatment Center The First Hospital of Hunan University of Chinese MedicineChangsha410007China

Background:Renalﬁbrosis is an important process in the development of chronic kidney *** the pathogenesis andﬁnding effective treatments for renalﬁbrosis is *** study aims to investigate whether a newly discovered long non-coding RNA(lncRNA)called LOC103694972 could be a potential target for treatingﬁbrosis of NRK-49F ***:LncRNA Chip was used to identify differentially expressed lncRNAs between TGF-β1-induced NRK-49F cells and normal *** dual-luciferase assay conﬁrmed the binding between miR-29c-3p and signal transducer and activator of transcription(STAT3),as well as between miR-29c-3p and lncRNA ***-LOC103694972 and miR-29c-3p mimic were then transfected into TGF-β1-induced NRK-49F ***:The study found that LOC103694972 was highly expressed in TGF-β1-induced NRK-49F *** cells exhibited increased cell length and activity compared to the control *** expression levels of Collagen I,α-Smooth muscle actin(α-SMA),and tissue inhibitor of metalloproteinase(TIMP-1)were increased,while matrix Metalloproteinase 2(MMP2)and matrix Metalloproteinase 9(MMP9)expression was ***,transfection with si-LOC103694972 and miR-29c-3p mimics restored cell morphology and reduced cell *** led to a decrease in the levels of Collagen I,α-SMA,and TIMP-1,as well as an increase in MMP2 and MMP9 ***,TGF-β1-induced NRK-49F cells transfected with miR-29c-3p mimics activated the STAT3-Smad3/CTGF ***:Based on theseﬁndings,lncRNA LOC103694972 shows promise as a target for treating renalﬁ*** negatively regulates miR-29c-3p and activates the STAT3-Smad3/CTGF pathway.

关键词： Renal fibrosis lncRNA LOC103694972 lncRNA Chip miR-29c-3p STAT3-Smad3/CTGF

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Low-energy-consumption temperature swing system for CO_(2) capture by combining passive radiative cooling and solar heating

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Green Energy & Environment 2024年第3期9卷 507-515页

作者： Ying-Xi Dang Peng Tan Bin Hu chen Gu Xiao-Qin Liu lin-Bing Sun State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)College of Chemical EngineeringNanjing Tech UniversityNanjing211816China

Temperature-swing adsorption(TSA)is an effective technique for CO_(2) capture,but the temperature swing procedure is ***,we report a low-energy-consumption system by combining passive radiative cooling and solar heating for the uptake of CO_(2) on commercial activated carbons(CACs).During adsorption,the adsorbents are coated with a layer of hierarchically porous poly(vinylidene fluoride-co-hexafluoropropene)[P(VdF-HFP)HP],which cools the adsorbents to a low temperature under sunlight through radiative *** desorption,CACs with broad absorption of the solar spectrum are exposed to light irradiation for *** heating and cooling processes are completely driven by solar *** tests under mimicked sunlight using the CACs show that the performance of this system is comparable to that of the traditional ***,under real sunlight irradiation,the adsorption capacity of the CACs can be well maintained after multiple *** present work may inspire the development of new temperature swing procedures with little energy consumption.

关键词： CO_(2)capture Solar heating Passive radiative cooling Temperature swing adsorption

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Janus Quasi‑Solid Electrolyte Membranes with Asymmetric Porous Structure for High‑Performance Lithium‑Metal Batteries

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Nano-Micro Letters 2024年第6期16卷 221-232页

作者： Zerui chen Wei Zhao Qian Liu Yifei Xu Qinghe Wang Jinmin lin Hao Bin Wu Institute for Composites Science Innovation(InCSI)and State Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China

Quasi-solid electrolytes(QSEs)based on nanoporous materials are promising candidates to construct high-performance Limetal batteries(LMBs).However,simultaneously boosting the ionic conductivity(σ)and lithium-ion transference number(t^(+)) of liquid electrolyte confined in porous matrix remains ***,we report a novel Janus MOFLi/MSLi QSEs with asymmetric porous structure to inherit the benefits of both mesoporous and microporous *** Janus QSE composed of mesoporous silica and microporous MOF exhibits a neat Li^(+) conductivity of 1.5.10^(–4)S cm^(−1) with t^(+) of 0.71.A partially de-solvated structure and preference distribution of Li^(+)near the Lewis base O atoms were depicted by MD ***,the nanoporous structure enabled efficient ion flux regulation,promoting the homogenous deposition of Li^(+).When incorporated in Li||Cu cells,the MOFLi/MSLi QSEs demonstrated a high Coulombic efficiency of 98.1%,surpassing that of liquid electrolytes(96.3%).Additionally,NCM 622||Li batteries equipped with MOFLi/MSLi QSEs exhibited promising rate performance and could operate stably for over 200 cycles at 1 *** results highlight the potential of Janus MOFLi/MSLi QSEs as promising candidates for next-generation LMBs.

关键词： Metal-organic frameworks Mesoporous silicas Quasi-solid electrolytes Janus structure Lithium-metal battery

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Brain mechanism of acupuncture for children with anisometropic amblyopia: a resting functional magnetic resonance imaging study based on voxel-mirrored homotopic connectivity

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International Journal of Ophthalmology(English edition) 2024年第2期17卷 339-347页

作者： Jue Wang Jing Jia Yan Sun chong-Bing Ma Yu-Zhu chen An-Guo Liu Xing-Ke Yan College of Acupuncture-Moxibustion and Tuina Gansu University of Chinese MedicineLanzhou 730101Gansu ProvinceChina Department of Ophthalmology Lanzhou Purui Ophthalmology HospitalLanzhou 730050Gansu ProvinceChina

AIM:To explore the brain mechanism of acupuncture for children with anisometropic amblyopia using the voxelmirror homotopic connectivity(VMHC)analysis method of resting functional magnetic resonance imaging(rs-fMRI)technology based on clinical ***:Eighty children with anisometropic monocular amblyopia were randomly divided into two groups:control(40 cases,1 case of shedding)and acupuncture(40 cases,1 case of shedding)*** control group was treated with glasses,red flash,grating,and visual stimulations,with each procedure conducted for 5min per *** on routine treatment,the acupuncture group underwent acupuncture of“regulating qi and unblocking meridians to bright eyes”,Jingming(BL1),Cuanzhu(BL2),Guangming(GB37),Fengchi(GB20)acupoints were taken on both sides,with the needle kept for 30min each *** groups were treated once every other day,three times per week,for a total of *** the treatment,the overall curative effect of the two groups and the latency and amplitude changes of P100 wave of pattern visual-evoked potential were *** the same time,nine children with left eye amblyopia were randomly selected from the two groups and were scanned with rsfMRI before and after *** differences in the brain regions between the two groups were compared and analyzed with ***:Chi-square test showed a notable difference in the total efficiency rate between the acupuncture(94.87%)and control groups(79.49%).Regarding the P100 wave latency and amplitude,the acupuncture group had significantly shorter latency and higher amplitude of P100 wave than the control ***,the VMHC values of the bilateral temporal lobe,superior temporal gyrus,and middle temporal gyrus were notably increased in the acupuncture group after ***:Acupuncture combined with conventional treatment can significantly improve the corrected visual acuity and optic nerve conduction in children with anisometropic ***

关键词： resting functional magnetic resonance imaging voxel-mirror homotopy connection anisometropic amblyopia acupuncture

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