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24篇 您的检索式:作者名="Wanting Yang"
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1Phytochrome B interacts with SWC6 and ARP6 to regulate H2A.Z deposition and photomorphogensis in Arabidopsis显示文摘Light serves as a crucial environmental cue which modulates plant growth and development, and which is controlled by multiple photoreceptors including the primary red light photoreceptor,phytochrome B(phyB). The signaling mechanism of phyB involves direct interactions with a group of basic helix-loop-helix(bHLH) transcription factors, PHYTOCHROME-INTERACTING FACTORS(PIFs), and the negative regulators of photomorphogenesis, COP1 and SPAs. H2 A.Z is an evolutionarily conserved H2 A variant which plays essential roles in transcriptional regulation. The replacement of H2 A with H2 A.Z is catalyzed by the SWR1 complex. Here, we show that the Pfr form of phyB physically interacts with the SWR1 complex subunits SWC6 and ARP6. phyB and ARP6 coregulate numerous genes in the same direction,some of which are associated with auxin biosynthesis and response including YUC9, which encodes a rate-limiting enzyme in the tryptophandependent auxin biosynthesis pathway. Moreover,phyB and HY5/HYH act to inhibit hypocotyl elongation partially through repression of auxin biosynthesis. Based on our findings and previous studies, we propose that phyB promotes H2 A.Z deposition at YUC9 to inhibit its expression through direct phyB-SWC6/ARP6 interactions,leading to repression of auxin biosynthesis, and thus inhibition of hypocotyl elongation in red light.Xuxu Wei Wanting Wang Peng Xu Wenxiu Wang Tongtong Guo Shuang Kou Minqing Liu Yake Niu Hong-Quan Yang Zhilei Mao 2021Journal of Integrative Plant Biology2021,63,6:6
2Protective Effects of Total Glucosides of Paeony against the Liver Injury Induced by Anti-tuberculosis Drugs显示文摘[Objectives]This study was conducted to elucidate the mechanism of action of total glucosides of paeony( TGP) against the liver injury induced by isoniazid( INH) and rifampicin( RFP),and to provide experimental evidence for rational use of anti-tuberculosis drugs. [Methods] Liver injury in mice was induced by the combination of INH and RFP in mice. After the mice were given different doses of Total Glucosides of White Paeony Capsules( TGP) for 10 d,the hepatosomatic index,biochemical indices in serum and liver homogenate were measured,and histopathological changes in liver tissue were observed. Glucurolactone was used as the positive control,and 0. 9% sodium chloride was used as the negative control in the experiment. [Results] TGP reduced the activities of alanine transaminase( ALT) and aspartate transferase( AST) in serum and the level of malondialdehyde( MDA) in liver tissue,and increased the level of glutathione( GSH) and the activity of superoxidase dismutase( SOD) in liver tissue. [Conclusions]TAP has a protective effect against the liver injury induced by INH and RFP.Lin SUN Xiaohong JIANG Ruowenxuan QIAN Yulu WANG Wanting XU Yang YANG 2018Agricultural Biotechnology2018,7,4:2
3Laser surface treatment-introduced gradient nanostructured TiZrHfTaNb refractory high-entropy alloy with significantly enhanced wear resistance显示文摘Heterogeneous gradient nanostructured metals have been shown to achieve the strength-ductility synergy, thus potentially possessing the enhanced tribological performance in comparison with their homogeneous nanograined counterparts. In this work, a facile laser surface remelting-based surface treatment technique is developed to fabricate a gradient nanostructured layer on a TiZrHfTaNb refractory highentropy alloy. The characterization of the microstructural evolution along the depth direction from the matrix to the topmost surface layer shows that the average grain size in the ~100 μm-thick gradient nanostructured layer is dramatically refined from the original ~200 μm to only ~8 nm in the top surface layer. The microhardness is therefore gradually increased from ~240 HV in matrix to ~650 HV in the topmost surface layer, approximately 2.7 times. Noticeably, the original coarse-grained single-phase bodycentered-cubic TiZrHfTaNb refractory high-entropy alloy is gradually decomposed into TiNb-rich bodycentered-cubic phase, TaNb-rich body-centered-cubic phase, ZrHf-rich hexagonal-close-packed phase and TiZr Hf-rich face-centered-cubic phase with gradient distribution in grain size along the depth direction during the gradient refinement process. As a result, the novel laser surface treatment-introduced gradient nanostructured TiZrHfTaNb refractory high-entropy alloy demonstrates the significantly improved wear resistance, with the wear rate reducing markedly by an order of magnitude, as compared with the as-cast one. The decomposed multi-phases and gradient nanostructures should account for the enhanced wear resistance. Our findings provide new insights into the refinement mechanisms of the laser-treated refractory high-entropy alloys and broaden their potential applications via heterogeneous gradient nanostructure engineering.Jiasi Luo Wanting Sun Ranxi Duan Wenqing Yang K.C.Chan Fuzeng Ren Xu-Sheng Yang 2022Journal of Materials Science & Technology2022,,15:2
4Molecular Mechanism of Induction on Apoptosis of Human Esophageal Cancer HCE-4 Cells by Active Components from Astragalus membranaceus显示文摘[Objectives] To investigate the pharmacologic effects of active components from A. membranaceus on human esophageal cancer HCE-4 cells and its apoptosis mechanism. [Methods] The viabilities of HCE-4 cells were measured by MTT assay. The induction of active components from A. membranaceus on apoptosis of HCE-4 cells was detected by Annexin V-FITC/PI double staining. The apoptotic-related protein expression levels were determined by Western blotting. [Results] Formononetin and astragaloside IV suppressed the proliferation of HCE-4 cells in a dose-dependent manner. The Annexin V-FITC/PI double staining results showed that formononetin and astragaloside IV could induce HCE-4 cells apoptosis in a time-dependent manner. The Western blotting results showed that formononetin and astragaloside IV could significantly down-regulate p-AKT,pro-caspase-3,and increase cle-caspase-3 protein expression in HCE-4 cells. [Conclusions]Active components from A. membranaceus such as formononetin and astragaloside IV significantly inhibited the proliferation of human esophageal cancer HCE-4 cells by inducing mitochondrial dependent apoptosis via AKT signaling pathway.Jiaru WANG Yinghua LUO Xianji PIAO Chang LIU Yi ZHANG Hao WANG Jinqian LI Wanting XU Yang LIU Yiqin WU Chenghao JIN 2018Medicinal Plant2018,9,1:2
5A Cross-layer Optimization for Maximum-revenue-based Multicast in Multichannel Multiradio Wireless Mesh Networks显示文摘YANG Wenlin HONG Wanting 2013International Journal of Communication Systems2013,,:1
6Process design and microstructure-property evolution during shear spinning of Ti_(2)AlNb-based alloy显示文摘Rotationally symmetric workpieces of Ti_(2)AlNb-based alloys have great potential for high-temperature service condition in aviation industry,while the poor workability limits their application until now.In this study,shear spinning and heat treatment were first conducted to investigate the corresponding microstructure evolution and mechanical properties of Ti_(2)AlNb conical workpieces.The microstructure of the 1^(st) and 2^(nd) pass spun workpieces(SP1 and SP2)mainly consisted of B2+retainedα2phases.After two passes spinning,the B2 phase texture changed from<111>//ND of as-received alloy to be<001>//ND.The ultimate tensile stress(UTS)of SP1 and SP2 was increased to 1163 MPa and 932 MPa,respectively,compared with 782 MPa of as-received alloy at 650℃.Also,the yield stress anomaly(YSA)occurred in SP1 and SP2 because{110}<111>and{112}<111>cross slip systems of B2 phase were difficult to slip at or below room temperature(RT),but they became active at 650℃ and above.As an essential step for increasing the spinnability of multi-pass spinning process of the Ti_(2)AlNb alloy,the H3heat treatment scheme,i.e.960℃/2 h+850℃/12 h,was carried out between two successive passes to increase the hot workability,by which the ductility of the heat treated as-spun workpieces with the microstructure of B2+primary O+acicular secondary O+high amount spheroidizedα2phases reached 72.1%at 900℃.After being subject to the H1 heat treatment scheme,i.e.960℃-2 h,the spun workpieces with the microstructure of B2+primary O+intergranular primaryα2phases achieved an optimized comprehensive mechanical properties both at room temperature and 650℃,which should be chosen as the post-spinning heat treatment process for the service requirement.Sibing Wang Wenchen Xu Bin Shao Guoping Yang Yingying Zong Wanting Sun Zhongze Yang Debin Shan 2022Journal of Materials Science & Technology2022,,6:1
7Identification of two glycerophosphodiester phosphodiesterase genes in maize leaf phosphorus remobilization显示文摘Phosphate deficiency is one of the leading causes of crop productivity loss.Phospholipid degradation liberates phosphate to cope with phosphate deficiency.Glycerophosphodiester phosphodiesterases(GPX-PDEs)hydrolyse the intermediate products of phospholipid catabolism glycerophosphodiesters into glycerol-3-phosphate,a precursor of phosphate.However,the function of GPX-PDEs in phosphate remobilization in maize remains unclear.In the present study,we characterized two phosphate deficiency-inducible GPX-PDE genes,ZmGPX-PDE1 and ZmGPX-PDE5,in maize leaves.ZmGPX-PDE1 and ZmGPX-PDE5 were transcriptionally regulated by ZmPHR1,a well-described phosphate starvation-responsive transcription factor of the MYB family.Complementation of the yeast GPX-PDE mutant gde1Δindicated that ZmGPX-PDE1 and ZmGPX-PDE5 functioned as GPX-PDEs,suggesting their roles in phosphate recycling from glycerophosphodiesters.In vitro enzyme assays showed that ZmGPX-PDE1 and ZmGPX-PDE5 catalysed glycerophosphodiester degradation with different substrate preferences for glycerophosphoinositol and glycerophosphocholine,respectively.ZmGPX-PDE1 was upregulated during leaf senescence,and more remarkably,loss of ZmGPXPDE1 inmaize compromised the remobilization of phosphorus fromsenescing leaves to young leaves,resulting in a stay-green phenotype under phosphate starvation.These results suggest that ZmGPX-PDE1 catalyses the degradation of glycerophosphodiesters in maize,promoting phosphate recycling from senescing leaves to new leaves.This mechanism is crucial for improving phosphorus utilization efficiency in crops.Jingxin Wang Wenbo Pan Alexiy Nikiforov William King Wanting Hong Weiwei Li Yang Han Jana Patton-Vogt Jianbo Shen Lingyun Cheng 2021The Crop Journal2021,9,1:1
8Single-cell metabolite analysis on a microfluidic chip显示文摘Metabolites can directly reflect and modulate cell responses and phenotypical changes by influencing energy balances,intercellular signals,and many other cellular functions throughout the lifespan of cells.Taking into account the heterogeneity of cells,single-cell metabolite analysis offers an insight into the functional process within one cell.Microfluidics as a powerful tool has attracted significant interest in the single-cell metabolite analysis field.The microfluidic platform is possible to observe,classify,and stimulate individual cells.It can also transport single-cell to subsequent analysis steps in a fast and controllable way to determine and analyze the composition and content of metabolites.The reviews of topics in microfluidics for single-cell metabolite analysis have been published in the past few years.However,most of them focused on metabolite analysis with mass spectrometry.Here,we covered the advances of microfluidic devices for single-cell metabolite analysis,with a focus on single-cell isolation and manipulation.What is more,we summarized the detection methods and applications of single-cell metabolites.Chenlong Wang Wanting Hu Liandi Guan Xiaoping Yang Qionglin Liang 2022Chinese Chemical Letters2022,33,6:1
9Rice disease identification method based on improved CNN-BiGRU显示文摘In the field of precision agriculture,diagnosing rice diseases from images remains challenging due to high error rates,multiple influencing factors,and unstable conditions.While machine learning and convolutional neural networks have shown promising results in identifying rice diseases,they were limited in their ability to explain the relationships among disease features.In this study,we proposed an improved rice disease classification method that combines a convolutional neural network(CNN)with a bidirectional gated recurrent unit(BiGRU).Specifically,we introduced a residual mechanism into the Inception module,expanded the module's depth,and integrated an improved Convolutional Block Attention Module(CBAM).We trained and tested the improved CNN and BiGRU,concatenated the outputs of the CNN and BiGRU modules,and passed them to the classification layer for recognition.Our experiments demonstrate that this approach achieves an accuracy of 98.21%in identifying four types of rice diseases,providing a reliable method for rice disease recognition research.Yang Lu Xiaoxiao Wu Pengfei Liu Hang Li Wanting Liu 2023Artificial Intelligence in Agriculture2023,,3:0
10A third dose of inactivated SARS-CoV-2 vaccine induces robust antibody responses in people with inadequate response to two-dose vaccination显示文摘Mass application of SARS-CoV-2 vaccines is a major approach to reduce SARS-CoV-2 transmission and COVID19 symptoms worldwide.The inactivated SARS-CoV-2 vaccine is one of the most widely administered vaccine types in many countries,with over 2 billion doses administered as of 31 August 2021.However,clinical trials estimate 65%–85%protection from detectable symptoms for inactivated SARS-CoV-2 vaccines[1–4],with 15%–35%of people remaining insufficiently protected after two-dose immunization.Immune protectionforthese‘non-responders’is critical for population immunity as established by mass vaccination.A third dose of inactivated(CoronaVac)vaccine has been shown to boost antibody response by between 3–5 folds in the general population[5].Whether a third dose can induce an adequate antibody response in‘non-responders’remains unclear.Here we report a trial of a third dose in a cohort of 105 vaccinated participants(Supplementary Fig.S1)with suboptimal antibody responses(non-responders)aftertwo doses(43.8%were men;average age 43±11 years[±SD];average BMI 23.5±3.4[±SD],Supplementary Table S1).Taicheng Zhou Tianpei Shi Ao Li Lingzhi Zhu Xinshuai Zhao Naiyin Mao Wanting Qin Hanfang Bi Mei Yang Muxian Dai Fengwei Liu Rong Wang Wei Su Liang Zhang Wenbo Xu Jia Wei Zijie Zhang 2022National Science Review2022,9,7:0
11Interfacial Polymer Engineered Field Effect Transistor Biosensors for Rapid and Efficient Identification of SARS-CoV-2 N Antigen显示文摘With the advantages of high sensitivity,rapid response,label-free,and simple operation,field effect transistor biosensors have shown promising application prospects in large-scale pathogen screening.However,in practical biological fluids with relatively high ionic strength,such as saliva and serum,the Debye screening effect will weaken the interaction between FET biosensors and target bio-molecules,thereby affecting the sensing sensitivity and accuracy.Qiumin Peng Wanting Huang Duo Chen Zhipeng Gao Yanbing Yang Quan Yuan 2023Chinese Journal of Chemistry2023,41,18:0
12Research progress on adaptive modifications of the gut microflora and regulation of host glucose and lipid metabolism by cold stimulation显示文摘The gut microflora is a combination of all microbes in intestine and their microenvironment,and its change can sensitively reflect the relevant response of the body to external environment and remarkably affect body's metabolism as well.Recent studies have found that cold exposure affects the body's gut microflora,which can lead to changes in the body's metabolism of glucose and lipid.This review summarizes recent research on the effects of cold exposure on gut microbes and metabolism of glucose and lipid,aiming to provide some new ideas on the approaches and measures for the prevention and treatment of diabetes and obesity.Wanting Wei Guanyu Zhang Yongqiang Zhang Li Zhang Shuai Wu Xi Li Danfeng Yang 2023Frigid Zone Medicine2023,3,1:0
13The relationship between sarcopenia,multidimensional frailty,and malnutrition cluster and long-term mortality in hospitalized patients with cirrhosis显示文摘Aim:Sarcopenia,multidimensional frailty,and malnutrition represent common debilitating conditions in the context of cirrhosis,linked to a variety of dismal outcomes.We aimed to clarify their overlap and cumulative impact on long-term mortality in hospitalized patients with cirrhosis.Methods:Consecutive patients with cirrhosis were prospectively recruited from January 2018 to December 2020.The diagnosis of sarcopenia,multidimensional frailty,and malnutrition was standardized according to the consensus definition and our well-documented criteria.The prevalence of the respective debilitating condition and the concurrence of this comorbidity were calculated.Results:In total,253 patients with cirrhosis aged 64 years with a female predominance(52.4%)were recruited.Sarcopenia was present in 20.9%(53/253),multidimensional frailty in 12.6%(32/253),and malnutrition in 44.7%(113/253)of the entire cohort.Approximately half of the patients had at least one debilitating condition(127/253).Sarcopenia and malnutrition co-existed in 33 nonfrail patients(13.0%)and multidimensional frailty and malnutrition in eight nonsarcopenic patients(3.2%).Fifteen(5.9%)subjects had all three debilitating conditions,namely malnutrition,sarcopenia,and frailty(MSF)group.The proportions of males,infections,and ascites were significantly higher in the MSF group.Patients in the MSF group had the highest levels of neutrophil-to-lymphocyte ratio and creatinine.The 2-year mortality rates in patients with three debilitating conditions,two conditions,one condition,and no conditions were 60.0%,23.8%,21.4%,and 13.5%,respectively.Multivariate Cox regression indicated the long-term mortality risk was approximately four-fold higher among patients in the MSF group compared to those with no conditions.Conclusions:A fraction of patients with cirrhosis exhibited comorbidities of sarcopenia,multidimensional frailty,and malnutrition,linked to a higher risk of long-term mortality.Gaoyue Guo Han Wang Wanting Yang Chaoqun Li Xingliang Zhao Xiaofei Fan Yangyang Hui Binxin Cui Xiaoyu Wang Xuqian Zhang Kui Jiang Chao Sun 2023Portal Hypertension & Cirrhosis2023,2,2:0
14Advance in Research on Anti-tumor Pharmacological Mechanism of Cryptotanshinone显示文摘Cryptotanshinone is a natural active ingredient extracted from traditional Chinese medicine Radix Salviae Miltiorrhizae.It has a variety of pharmacological effects,in addition to preventing and treating ischemic diseases,coronary artery disease Alzheimer's disease and fighting tumors.The anti-tumor effects are exerted through inhibiting tumor cell proliferation,inducing tumor cell apoptosis,inhibiting tumor metastasis and invasion,inhibiting angiogenesis and regulating reactive oxygen species levels.The studies on the anti-tumor activity and action mechanism of cryptotanshinone in recent years are reviewed in this article.Jiaru WANG Lingqi MENG Yi ZHANG Hao WANG Wanting XU Yang LIU Yu ZHANG Tong ZHANG Shinong WANG Yuqing ZHAI Yinghua LUO Chenghao JIN 2018Medicinal Plant2018,9,6:0
15Apoptotic Effect of Cryptotanshinone on Human Melanoma A375 Cells显示文摘[Objectives] The aim was to investigate the effect of cryptotanshinone on apoptosis of human melanoma A375 cells and its related mechanism of mitochondrial pathway.[Methods]The cytotoxic effect of cryptotanshinone on apoptosis of human melanoma A375 cells was detected by MTT colorimetry.The apoptosis of melanoma A375 cells was detected with Annexin V-FITC/PI and observed by fluorescence inverted microscope.The expression of apoptosis-related proteins was detected by Western blotting.[Results]The viability of the A375 cells decreased with the increase of drug concentration.The fluorescence intensity of the cells increased with the treatment time.The expression of pro-apoptotic protein caspase-3 gradually increased,while the expression of apoptosis-inhibiting proteins p-AKT and Bcl-2 gradually reduced.[Conclusions]Cryptotanshinone induces apoptosis of human melanoma A375 cells via AKT signaling pathway,thus exerting a good cytotoxic effect on A375 cells.Jinqian LI Jiaru WANG Lingqi MENG Yi ZHANG Hao WANG Wanting XU Yang LIU Yu ZHANG Shinong WANG Yuqing ZHAI Yinghua LUO Chenghao JIN 2018Medicinal Plant2018,9,6:0
16Sarcopenic obesity in liver disease: Handling both sides of the penny显示文摘Skeletal muscle and fat tissue show distinct pathophysiological roles and pivotal functions.The culmination of muscle wasting and fat accumulation represents an opposite terminal of each state.Specifically,this situation has been designated as sarcopenic obesity.However,sarcopenic obesity still lacks a unanimous definition,diagnostic criteria,and generalized modalities for assessment in the context of versatile liver diseases.Moreover,the underpinning mechanisms by which a combination of abnormal skeletal muscle and fat tissue leads to the progression of liver disease and impairs health‐related consequences are still elusive.Additionally,the interplay between skeletal muscle and fat,and the driving factors that shift different body compositions are not well understood.Therefore,in this review,we discuss skeletal muscle and fat components,with the purpose of conceptualization,as well as interpret their roles in liver diseases.We focus on the definitions,diagnostic criteria,and currently available measurements for sarcopenic obesity in the literature.We comprehensively discuss recent data and evidence regarding the potential role of sarcopenic obesity in the development and progression of numerous liver diseases and associated conditions,including nonalcoholic fatty liver disease,chronic viral hepatitis,cirrhosis,and liver transplantation.Furthermore,explicit information related to the pathogenesis of sarcopenic obesity from basic research is also provided in this narrative review.Finally,we discuss,from the clinical perspective of view,how to manage sarcopenic obesity using nutritional,physical,and pharmacological methods.Yangyang Hui Binxin Cui Xiaoyu Wang Mingyu Sun Yifan Li Wanting Yang Gaoyue Guo Lihong Mao Zihan Yu Xiaofei Fan Chao Sun 2022Portal Hypertension & Cirrhosis2022,1,1:0
17A PD-L1-targeting chimeric switch receptor enhances efficacy of CAR-T cell for pleural and peritoneal metastasis显示文摘Pleural and peritoneal metastasis accompanied by malignant pleural effusion(MPE)or malignant ascites(MA)is frequent in patients with advanced solid tumors that originate from the lung,breast,gastrointestinal tract and ovary.Regional delivery of CAR-T cells represents a new strategy to control tumor dissemination in serous cavities.However,malignant effusions constitute an immune-suppressive environment that potentially induces CAR-T cell dysfunction.Here,we demonstrated that the anti-tumor cytotoxicity of conventional 2nd-generation CAR-T cells was significantly inhibited by both the cellular and non-cellular components of MPE/MA,which was primarily attributed to impaired CAR-T cell proliferation and cytokine production in MPE/MA environment.Interestingly,we found that PD-L1 was widely expressed on freshly-isolated MPE/MA cells.Based on this feature,a novel PD-L1-targeting chimeric switch receptor(PD-L1.BB CSR)was designed,which can bind to PD-L1,switching the inhibitory signal into an additional 4-1BB signal.When co-expressed with a 2nd-generation CAR,PD-L1.BB CSR-modified CAR-T cells displayed superior fitness and enhanced functions in both culture medium and MPE/MA environment,causing rapid and durable eradication of pleural and peritoneal metastatic tumors in xenograft models.Further investigations revealed elevated expressions of T-cell activation,proliferation,and cytotoxicity-related genes,and we confirmed that PD-L1 scFv and 4-1BB intracellular domain,the two important components of PD-L1.BB CSR,were both necessary for the functional improvements of CAR-T cells.Overall,our study shed light on the clinical application of PD-L1.BB CSR-modified dual-targeting CAR-T cells.Based on this study,a phase I clinical trial was initiated in patients with pleural or peritoneal metastasis(NCT04684459).Qizhi Ma Xia He Benxia Zhang Fuchun Guo Xuejin Ou Qiyu Yang Pei Shu Yue Chen Kai Li Ge Gao Yajuan Zhu Diyuan Qin Jie Tang Xiaoyu Li Meng Jing Jian Zhao Zeming Mo Ning Liu Yao Zeng Kexun Zhou Mingyang Feng Weiting Liao Wanting Lei Qiu Li Dan Li Yongsheng Wang 2022Signal Transduction and Targeted Therapy2022,7,12:0
18Carbonized polymer dots enhanced stability and flexibility of quasi-2D perovskite photodetector显示文摘Quasi-2D perovskites have been demonstrated to be competitive materials in the photodetection fields due to the enhanced moisture stability by large organic cations.However,as the increasing demands of modern technology,it is still challenging to combine the flexibility with the capability of weak light detection in a low-cost way.Here,amides,carboxylic acids,and anhydrides groups-rich carbonized polymer dots(CPDs)were employed to fll in the perovskite grain boundaries,which can passivate the point defects of perovskite by coordinating with the unbonded Pb atoms,and reduce the leakage current.Weak light detection capability was demonstrated by directly resolving light with an intensity of 10.1 pW cm^(-2).More importantly,the stretchable polymer chains on CPDs strongly interact with perovskite ions through multiple supramolecular interactions,and extend the stretchable properties to the perovskite/CPDs composites,which can maintain the integral structure stability during the deformation of perovskite crystals and restricted any crack by releasing the flm strain.Our fabricated devices show extraordinary flexible stability in the bending-dependent response tests.The viscoelasticity of CPDs improves the bending stability of the flexible quasi-2D perovskite photodetectors,and device performance shows no degradation after bending 10000 times,comparable or even outperforming the dominating flexible photodetectors.Mingrui Tan Mingbian Li Wanting Pan Xiaopeng Feng Yuhong He Junjun Liu Fengxia Dong Haotong Wei Bai Yang 2022Light(Science & Applications)2022,11,11:0
19PIFs interact with SWI2/SNF2-related 1 complex subunit 6 to regulate H2A.Z deposition and photomorphogenesis in Arabidopsis显示文摘Light is an essential environmental signal perceived by a broad range of photoreceptors in plants. Among them, the red/far-red light receptor phytochromes function to promote photomorphogenesis, which is critical to the survival of seedlings after seeds germination. The basic-helix-loop-helix transcription factors phytochrome-interacting factors (PIFs) are the pivotal direct downstream components of phytochromes. H2A.Z is a highly conserved histone variant regulating gene transcription, and its incorporation into nucleosomes is catalyzed by SWI2/SNF2-related 1 complex, in which SWI2/SNF2-related 1 complex subunit 6 (SWC6) and actin-related protein 6 (ARP6) serve as core subunits. Here, we show that PIFs physically interact with SWC6 in vitro and in vivo, leading to the disassociation of HY5 from SWC6. SWC6 and ARP6 regulate hypocotyl elongation partly through PIFs in red light. PIFs and SWC6 coregulate the expression of auxin-responsive genes such as IAA6, IAA19, IAA20, and IAA29 and repress H2A.Z deposition at IAA6 and IAA19 in red light. Based on previous studies and our findings, we propose that PIFs inhibit photomorphogenesis, at least in part, through repression of H2A.Z deposition at auxin-responsive genes mediated by the interactions of PIFs with SWC6 and promotion of their expression in red light.Huiru Chen Wanting Wang Xiao Chen Yake Niu Yuanyuan Qi Ze Yu Minyu Xiong Pengbo Xu Wenxiu Wang Tongtong Guo Hong-Quan Yang Zhilei Mao 2023Journal of Genetics and Genomics2023,50,12:0
20An extraordinary-performance gradient nanostructured Hadfield manganese steel containing multi-phase nanocrystalline-amorphous core-shell surface layer by laser surface processing显示文摘Reducing grain size(i.e.increasing the fraction of grain boundaries)could effectively strengthen nanograined metals but inevitably sacrifices the ductility and possibly causes a strengthening-softening transition below a critical grain size.In this work,a facile laser surface remelting-based technique was employed and optimized to fabricate a∼600μm-thick heterogeneous gradient nanostructured layer on an austenitic Hadfield manganese steel,in which the average grain size is gradually decreased from∼200μm in the matrix to only∼8 nm in the nanocrystalline-amorphous core-shell topmost surface.Atomic-scale microstructural characterizations dissected the gradient refinement processes along the gradient direction,i.e.transiting from the dislocations activities and twinning in sub-region to three kinds of martensitic transformations,and finally a multi-phase nanocrystalline-amorphous core-shell structural surface.Mechanical tests(e.g.nanoindentation,bulk-specimen tensile,and micro-pillar compression)were conducted along the gradient direction.It confirms a tensile strength of∼1055 MPa and ductility of∼10.5%in the laser-processed specimen.Particularly,the core-shell structural surface maintains ultra-strong(tensile strength of∼1.6 GPa,micro-pillar compressive strength of∼4 GPa at a strain of∼8%,and nanoindentation hardness of∼7.7 GPa)to overcome the potential strengthening-softening transition.Such significant strengthening effects are ascribed to the strength-ductility synergetic effects-induced extra work hardening ability in gradient nanostructure and the well-maintained dislocation activities inside extremely refined nanograins in the multi-phase nanocrystalline-amorphous core-shell structural surface,which are evidenced by atomic-scale observations and theoretical analysis.This study provides a unique hetero-nanostructure through a facile laser-related technique for extraordinary mechanical performance.Wanting Sun Jiasi Luo Yim Ying Chan J.H.Luan Xu-Sheng Yang 2023Journal of Materials Science & Technology2023,,3:0
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