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| 1 | The estimate of sea ice resources quantity in the Bohai Sea based on NOAA/AVHRR data显示文摘The research on sea ice resources is the academic base of sea ice exploitation in the Bohai Sea. According to the ice-water spectrum differences and the correlation between ice thickness and albedo, this paper comes up with a sea ice thickness inversion model based on the NOAA/AVHRR data. And then a sea ice resources quantity (SIQ) time series of Bohai Sea is established from 1987 to 2009. The results indicate that the average error of inversion sea ice thickness is below 30%. The maximum sea ice resources quantity is about 6 × 10 9 m 3 and the minimum is 1.3 × 10 9 m 3 . And a preliminary analysis has been made on the errors of the estimate of sea ice resources quantity (SIQ). | YUAN Shuai GU Wei XU Yingjun WANG Ping HUANG Shuqing LE Zhangyan CONG Jianou | 2012 | Acta Oceanologica Sinica2012，31，1： | 15 |
| 2 | M1 muscarinic acetylcholine receptor in Alzheimer's disease显示文摘The degeneration of cholinergic neurons and cholinergic hypofunction are pathologies associated with Alzheimer's disease(AD). Muscarinic acetylcholine receptors(mAChRs) mediate acetylcholine-induced neurotransmission and five mAChR subtypes(M1–M5) have been identified. Among them, M1 mAChR is widely expressed in the central nervous system and has been implicated in many physiological and pathological brain functions. In addition, M1 mAChR is postulated to be an important therapeutic target for AD and several other neurodegenerative diseases. In this article, we review recent progress in understanding the functional involvement of M1 mAChR in AD pathology and in developing M1 mAChR agonists for AD treatment. | Shangtong Jiang Yanfang Li Cuilin Zhang Yingjun Zhao Guojun Bu Huaxi Xu Yun-Wu Zhang | 2014 | Neuroscience Bulletin2014，30，2： | 10 |
| 3 | Rapid reconstitution of NK1 cells after allogeneic transplantation is associated with a reduced incidence of graft-versus-host disease显示文摘The balance between immunostimulation and immunoregulation in T cell immunity is achieved by maintaining specific ratios of Th1, Th2, Th3 and Tr1 cells. Here, we investigate levels of type 1(IFN-gamma; NK1), type 2(IL-13; NK2), type 3(TGF-beta;NK3) and regulatory(IL-10; NKr) cytokines in peripheral blood to assess the cytokine profiles of natural killer(NK) cells following human allogeneic hematopoietic stem cell transplantation(allo-HSCT). NK2 and NK3 cell expansion was observed after allo-HSCT; levels of NKr cells reached donor levels at day 15, though levels of NK1 cells were consistently lower than donor levels until day 60 after allo-HSCT. Multivariate analysis showed that a higher level of NK1 cells by day 15 was associated with a lower overall risk of acute graft-versus-host disease(GVHD)(HR 0.157, P=0.010) as well as II-IV acute GVHD(HR0.260, P=0.059). Furthermore, higher levels of NK1 cells by day 15 were correlated with lower rates of cytomegalovirus(CMV)reactivation(HR 0.040, 0.005–0.348, P=0.003). These results indicate that rapid reconstitution of NK cells, especially NK1 cells,can help prevent the development of GVHD as well as CMV reactivation after allogeneic transplantation. | Xingxing Yu Lingling Xu Yingjun Chang Xiaojun Huang Xiangyu Zhao | 2018 | Science China(Life Sciences)2018，61，8： | 9 |
| 4 | Platelet transfusion refractoriness after T-cell-replete haploidentical transplantation is associated with inferior clinical outcomes显示文摘Haploidentical stem cell transplantation (haplo-SCT) has been an alternative source of bone marrow for patients without human leukocyte antigen (HLA)-matched donors. The aim of this study was to investigate the relationships between platelet transfusion refractoriness (PTR) and clinical outcomes in the setting of haplo-SCT. Between May 2012 and March 2014, 345 patients who underwent unmanipulated haplo-SCT were retrospectively enrolled. PTR occurred in 20.6% of all patients. Patients in the PTR group experienced higher transplant-related mortality (TRM, 43.7% vs. 13.5%, P<0.001), lower overall survival (OS, 47.9%vs. 76.3%, P<0.001) and lower leukemia-free survival (LFS, 47.9% vs. 72.3%, P<0.001) compared to patients in the non-PTR group. The multivariate analysis showed that PTR was associated with TRM (P=0.002), LFS (P<0.001), and OS (P<0.001).The cumulative incidences of PTR in patients receiving >12 platelet (PLT) transfusions (third quartile of PLT transfusions) were higher than in patients receiving either >6 (second quartile) or >3 (first quartile) PLT transfusions (56.1% vs. 41.6% vs. 28.2%,respectively; P<0.001). The multivariate analysis also showed that PTR was associated with the number of PLT transfusions(P<0.001). PTR could predict poor transplant outcomes in patients who underwent haploidentical SCT. | Qiang Fu Lanping Xu Xiaohui Zhang Yu Wang Yingjun Chang Kaiyan Liu Xiaojun Huang | 2018 | Science China(Life Sciences)2018，61，5： | 7 |
| 5 | Improved clinical outcomes of rhG-CSF-mobilized blood and marrow haploidentical transplantation compared to propensity score-matched rhG-CSF-primed peripheral blood stem cell haploidentical transplantation:a multicenter study显示文摘The effects of haploidentical rhG-CSF-mobilized blood and marrow transplantation(HBMT) on hematological malignances are well established. Previous prospective single-center studies have demonstrated better survival after HBMT versus haploidentical rhG-CSF-mobilized peripheral blood stem cell transplantation(HPBSCT) for acute leukemia(AL) not in remission(NR) or in more than the second complete remission(>CR2). To test the hypothesis that HBMT is still superior to HPBSCT for patients with AL, multiple myeloma(MM), or non-Hodgkin lymphoma(NHL) in CR1/CR2 and for patients with chronic myeloid leukemia in the first and second chronic phase lacking a matched donor, we designed a propensity score method-based multicenter study.Hematopoietic recovery, acute graft-versus-host disease(aGVHD), and chronic GVHD were comparable between the HBMT group(n=168) and the HPBSCT group(n=42). No significant differences were found in non-relapse mortality rate(20.17%±3.58%and 27.24%±7.16%, P=0.18) or relapse rate(19.96%±3.72% and 28.49%±8.25%, P=0.32) between the HBMT group and the HPBSCT group. HBMT recipients had better overall survival(65.0%±4.2% and 54.2%±8.3%, P=0.037) and disease-free survival(59.9%±4.6% and 44.3%±8.7%, P=0.051). Multivariate analysis showed that HPBSCT was associated with poorer DFS(HR(95%CI), 1.639(0.995–2.699), P=0.052). Our comparisons showed that HBMT was superior to HPBSCT as a post-remission treatment for patients lacking an identical donor. | Xiangyu Zhao Feng Gao Xiaohui Zhang Yu Wang Lanping Xu Kaiyan Liu Xiaosu Zhao Yingjun Chang Han Wei Huan Chen Yuhong Chen Zhengfan Jiang Xiaojun Huang | 2016 | Science China(Life Sciences)2016，59，11： | 7 |
| 6 | Chemically doped macroscopic graphene fibers with significantly enhanced thermoelectric properties显示文摘当与突出的热电的性质结合了时,灵活便携电子学为收获系统的未来精力正在答应候选人。Graphene 和它的宏观的集会(例如,基于 graphene 的纤维和电影) 因为他们的非凡的电、机械的性质,因此是众多的研究的题目。然而,这些集会没由于他们的高内在的热传导性为热电的应用程序被认为合适。在这研究,溴做被表明是为显著地提高 graphene 纤维的热电的性质的一个有效方法。做提高声子由于增加的缺点散布并且因此减少热传导性,当电的传导性和 Seebeck 系数被费密增加时,铺平换至较低排挡。作为结果,优点的最大的数字是 2. | Weigang Ma Yingjun Liu Shen Yan Tingting Miao Shaoyi Shi Zhen Xu Xing Zhang Chao Gao | 2018 | Nano Research2018，11，2： | 6 |
| 7 | Seasonal variations of carboxylic acids and their contributions to the rainwater acidity: A case study of Guiyang and Shangzhong,China显示文摘Low molecule weight carboxylic acids are ubiquitous and important chemical constituents in the troposphere.Seven carboxylic acids in the rainwater of Guiyang and Shangzhong were simultaneously determined by ion chromatography from April 2006 to April 2007.Formic, acetic and oxalic acids were found to be the predominant carboxylic acids.Their volume weighted average concentration (VWA) in the rainwater of Guiyang were 14.24 μmol/L, 9.35 μmol/L and 2.79 μmol/L, respectively;as compared to 4.95 μmol/L, 1.35 μmol/L and 2.31 μmol/L in the rainwater of Shangzhong.In Shangzhong it is witnessed that the concentra-tions of these acids were higher in the summer than in the winter and direct emissions from vegetations or soils may account for the main provenance of the acids.This is, however, not the case in Guiyang, where the concentrations of the carboxylic acids were higher during the non-growing season than during the growing season.The relatively weak scavenging affected by scarce and little rainwater as well as the particles accompanied with the rainfall may have some effect on the carboxylic acids during the wintertime in Guiyang.Carboxylic acids in the rainwater of Guiyang were estimated to account for 18.7% to the free acidity, where formic, acetic and oxalic acids accounted for 7.9%, 4.7%, 6.1%, respectively.In Shangzhong, the 3 primary carboxylic acids represented 58.1% to the free acidity where formic, acetic and oxalic acids represented 25.1%, 7.5%, 25.5%, respectively.Carboxylic anions accounted for 6.6% (1.7%–19.2%) to the total anions in the rainwater of Guiyang.Carboxylic anions repre-sented 13.2% (0.5%–92.2%) to the total anions in the rainwater of Shangzhong.These results indicated that carboxylic acids were the important contributors to the rainwater acidity, especially in remote regions. | XU Gang LEE XinQing LU YingChun CHEN YingJun HUANG DaiKuan | 2010 | Chinese Science Bulletin2010，55，16： | 5 |
| 8 | Signaling pathways in cancer-associated fibroblasts:recent advances and future perspectives显示文摘As a critical component of the tumor microenvironment(TME),cancerassociated fibroblasts(CAFs)play important roles in cancer initiation and progression.Well-known signaling pathways,including the transforming growth factor-β(TGF-β),Hedgehog(Hh),Notch,Wnt,Hippo,nuclear factor kappa-B(NF-κB),Janus kinase(JAK)/signal transducer and activator of transcription(STAT),mitogen-activated protein kinase(MAPK),and phosphoinositide 3-kinase(PI3K)/AKT pathways,as well as transcription factors,including hypoxia-inducible factor(HIF),heat shock transcription factor 1(HSF1),P53,Snail,and Twist,constitute complex regulatory networks in theTMEtomodulate the formation,activation,heterogeneity,metabolic characteristics and malignant phenotype of CAFs.Activated CAFs remodel the TME and influence the malignant biological processes of cancer cells by altering the transcriptional and secretory characteristics,and this modulation partially depends on the regulation of signaling cascades.The results of preclinical and clinical trials indicated that therapies targeting signaling pathways in CAFs demonstrated promising efficacy but were also accompanied by some failures(e.g.,NCT01130142 and NCT01064622).Hence,a comprehensive understanding of the signaling cascades in CAFs might help us better understand the roles of CAFs and the TME in cancer progression and may facilitate the development of more efficient and safer stroma-targeted cancer therapies.Here,we review recent advances in studies of signaling pathways in CAFs and briefly discuss some future perspectives on CAF research. | Zengli Fang Qingcai Meng Jin Xu Wei Wang Bo Zhang Jiang Liu Chen Liang Jie Hua Yingjun Zhao Xianjun Yu Si Shi | 2023 | Cancer Communications2023，43，1： | 5 |
| 9 | Rh-doped PdAg nanoparticles as efficient methanol tolerance electrocatalytic materials for oxygen reduction显示文摘Direct methanol fuel cells(DMFCs)have received extensive attention on their high efficiency,high reliability,and no carbon emission.Unfortunately,the poor methanol tolerance and sluggish oxygen reduction reaction(ORR)at cathode have seriously hindered their further development.Herein we report the synthesis of a new class of Rh-doped PdAg alloy nanoparticles(NPs)for boosting ORR activity with high methanol tolerance capacity concurrently.The ORR mass activity of typical Rh_4Pd_(40)Ag_(56)NPs is 4.2 times higher than that of commercial Pt catalyst.Moreover,it shows a great methanol tolerance capability by maintaining 92.4%in ORR mass activity in alkaline solution with 0.1 mol L^(à1)methanol,against a big decrease of almost 100%for commercial Pt.Even after 30,000 potential cycles with 1.0 mol L^(à1)methanol,Rh_4Pd_(40)Ag_(56)NPs still retain ORR mass activity of up to 68.3%.DFT calculations reveal that excellent ORR performance with excellent methanol tolerance originates the active d-band-pinning engineering for an efficient site-independent electron-transfer.A generalized d-band mediated fine electron-transfer tuning path has blueprinted for effectively minimizing intrinsic ORR barriers with high current density.The present work highlights the key role of Rh doping in enhancing the ORR activity and methanol tolerance ability of PdAg NPs for future high-performance DMFCs. | Yingjun Sun Bolong Huang Nuoyan Xu Yingjie Li Mingchuan Luo Chunji Li Yingnan Qin Lei Wang Shaojun Guo | 2019 | Science Bulletin2019，64，1： | 4 |
| 10 | A wave of Foxp3^(+) regulatory T cell accumulation in the neonatal liver plays unique roles in maintaining self-tolerance显示文摘Newborn animals require tightly regulated local and systemic immune environments to govern the development and maturation of multiple organs/tissues even though the immune system itself is far from mature during the neonatal period.Regulatory T cells(Tregs)are essential for maintaining immune tolerance/homeostasis and modulating inflammatory responses.The features of Tregs in the neonatal liver under steady-state conditions are not well understood.The present study aimed to investigate the phenotype,functions,and significance of neonatal Tregs in the liver.We found a wave of thymus-derived Treg influx into the liver during 1–2 weeks of age.Depletion of these Tregs between days 7 and 11 after birth rapidly resulted in Th1-type liver inflammation and metabolic disorder.More Tregs in the neonatal liver than in the spleen underwent MHC II-dependent activation and proliferation,and the liver Tregs acquired stronger suppressive functions.The transcriptomic profile of these neonatal liver Tregs showed elevated expression of PPARγand T-bet and features of Tregs that utilize lipid metabolic machinery and are capable of regulating Th1 responses.The accumulation of Tregs with unique features in the neonatal liver is critical to ensure self-tolerance and liver maturation. | Mingyang Li Weijia Zhao Yifan Wang Lixue Jin Gaowen Jin Xiuyuan Sun Wei Wang Ke Wang Xi Xu Jie Hao Rong Jin Wenxian Fu Ying Sun Yingjun Chang Xiaojun Huang Xuyu Zhou Hounan Wu Kunshan Zhang Qing Ge | 2020 | Cellular & Molecular Immunology2020，17，5： | 4 |
| 11 | Short-working-distance optical imaging system and method for surface detection of underwater structures显示文摘In the surface imaging of underwater structures, long working distance will reduce image quality due to the turbidity of water. To acquire high definition and large field of view(FOV) images for surface detection, a short-working-distance underwater imaging system is proposed based on camera array. A multi-view calibration and rectification method is developed. A look-up table(LUT) method and a multi-resolution spline(MRS) method are applied to stitch array images real-time and seamlessly.Experiments both in the air and in the water are conducted. Strength and weakness of the LUT and MRS methods are discussed.Based on the results, the effectiveness in surface detection of underwater structures is verified. | LIU Cong WANG ChengFei XU YingJun LI Xu LUO ChunHao DAI MeiLing SHAO XinXing HE XiaoYuan | 2018 | Science China(Technological Sciences)2018，61，5： | 4 |
| 12 | The in situ observation of modelled sea ice drift characteristics in the Bohai Sea显示文摘Sea ice drift is mainly controlled by ocean currents, local wind, and internal ice stress. Information on sea ice motion, especially in situ synchronous observation of an ice velocity, a current velocity, and a wind speed, is of great significance to identify ice drift characteristics. A sea ice substitute, the so-called 'modelled ice', which is made by polypropylene material with a density similar to Bohai Sea ice, is used to complete a free drift experiment in the open sea. The trajectories of isolated modelled ice, currents and wind in the Bohai Sea during non-frozen and frozen periods are obtained. The results show that the currents play a major role while the wind plays a minor role in the free drift of isolated modelled ice when the wind is mild in the Bohai Sea. The modelled ice drift is significantly affected by the ocean current and wind based on the ice–current–wind relationship established by a multiple linear regression. The modelled ice velocity calculated by the multiple linear regression is close to that of the in situ observation, the magnitude of the error between the calculated and observed ice velocities is less than12.05%, and the velocity direction error is less than 6.21°. Thus, the ice velocity can be estimated based on the observed current velocity and wind speed when the in situ observed ice velocity is missing. And the modelled ice of same thickness with a smaller density is more sensitive to the current velocity and the wind speed changes. In addition, the modelled ice drift characteristics are shown to be close to those of the real sea ice, which indicates that the modelled ice can be used as a good substitute of real ice for in situ observation of the free ice drift in the open sea, which helps solve time availability, safety and logistics problems related to in situ observation on real ice. | Yu Yan Wei Gu Yingjun Xu Qian Li | 2019 | Acta Oceanologica Sinica2019，38，3： | 3 |
| 13 | On the surface roughness characteristics of the land fast sea-ice in the Bohai Sea显示文摘The surface roughness characteristics(e.g., height and slope) of sea ice are critical for determining the parameters of an electromagnetic scattering, a surface emission and a surface drag coefficients. It is also important in identifying various ice types, retrieval ice thickness, surface temperature and drag coefficients from remote sensing data. The point clouds(a set of points which are usually defined by X, Y, and Z coordinates that represents the external surface of an object on earth) of land fast ice in five in situ sites in the eastern coast Bohai Sea were measured using a laser scanner-Trimble GX during 2011–2012 winter season. Two hundred and fifty profiles selected from the point clouds of different samples have been used to calculate the height root mean square, height skewness, height kurtosis, slope root mean square, slope skewness and slope kurtosis of them. The root mean square of the height, the root mean square of the slope and the correlation length are about 0.090, 0.075 and 11.74 m, respectively. The heights of 150 profiles in three sites manifest the Gaussian distribution and the slopes of total 250 profiles distributed exponentially. In addition, the fractal dimension and power spectral density profiles were calculated. The results show that the fractal dimension of land fast ice in the Bohai Sea is about 1.132. The power spectral densities of 250 profiles can be expressed through an exponential autocorrelation function. | LIU Chengyu CHAO Jinlong GU Wei LI Lantao XU Yingjun | 2014 | Acta Oceanologica Sinica2014，33，7： | 3 |
| 14 | A monotone finite volume method for time fractional Fokker-Planck equations显示文摘We develop a monotone ?nite volume method for the time fractional Fokker-Planck equations and theoretically prove its unconditional stability. We show that the convergence rate of this method is of order 1 in the space and if the space grid becomes suffciently ?ne, the convergence rate can be improved to order 2.Numerical results are given to support our theoretical ?ndings. One characteristic of our method is that it has monotone property such that it keeps the nonnegativity of some physical variables such as density, concentration,etc. | Yingjun Jiang Xuejun Xu | 2019 | Science China Mathematics2019，62，4： | 3 |
| 15 | The mechanosensitive lncRNA Neat1 promotes osteoblast function through paraspeckle-dependent Smurf1 mRNA retention显示文摘Mechanical stimulation plays an important role in bone remodeling. Exercise-induced mechanical loading enhances bone strength,whereas mechanical unloading leads to bone loss. Increasing evidence has demonstrated that long noncoding RNAs(lnc RNAs) play key roles in diverse biological, physiological and pathological contexts. However, the roles of lnc RNAs in mechanotransduction and their relationships with bone formation remain unknown. In this study, we screened mechanosensing lnc RNAs in osteoblasts and identified Neat1, the most clearly decreased lnc RNA under simulated microgravity. Of note, not only Neat1 expression but also the specific paraspeckle structure formed by Neat1 was sensitive to different mechanical stimulations, which were closely associated with osteoblast function. Paraspeckles exhibited small punctate aggregates under simulated microgravity and elongated prolate or larger irregular structures under mechanical loading. Neat1 knockout mice displayed disrupted bone formation, impaired bone structure and strength, and reduced bone mass. Neat1 deficiency in osteoblasts reduced the response of osteoblasts to mechanical stimulation. In vivo, Neat1 knockout in mice weakened the bone phenotypes in response to mechanical loading and hindlimb unloading stimulation. Mechanistically, paraspeckles promoted nuclear retention of E3 ubiquitin ligase Smurf1 m RNA and downregulation of their translation, thus inhibiting ubiquitination-mediated degradation of the osteoblast master transcription factor Runx2, a Smurf1 target. Our study revealed that Neat1 plays an essential role in osteoblast function under mechanical stimulation, which provides a paradigm for the function of the lnc RNA-assembled structure in response to mechanical stimulation and offers a therapeutic strategy for long-term spaceflight-or bedrest-induced bone loss and age-related osteoporosis. | Caizhi Liu Xingcheng Gao Yuheng Li Weijia Sun Youjia Xu Yingjun Tan Ruikai Du Guohui Zhong Dingsheng Zhao Zizhong Liu Xiaoyan Jin Yinlong Zhao Yinbo Wang Xinxin Yuan Junjie Pan Guodong Yuan Youyou Li Wenjuan Xing Guanghan Kan Yanqing Wang Qi Li Xuan Han Jianwei Li Shukuan Ling Yingxian Li | 2022 | Bone Research2022，10，2： | 3 |
| 16 | Mutual Information Based Codebooks Construction for Natural Scene Categorization显示文摘 | XIE Wenjie XU De TANG Yingjun LIU Shuoyan FENG Songhe | 2011 | Chinese Journal of Electronics2011，20，3： | 3 |
| 17 | Monodomain Liquid Crystals of Two-Dimensional Sheets by Boundary-Free Sheargraphy显示文摘Eliminating topological defects to achieve monodomain liquid crystals is highly significant for the fundamental studies of soft matter and building long-range ordered materials.However,liquid crystals are metastable and sensitive to external stimuli,such as flow,confinement,and electromagnetic fields,which cause their intrinsic polycrystallinity and topological defects.Here,we achieve the monodomain liquid crystals of graphene oxide over 30 cm through boundary-free sheargraphy.The obtained monodomain liquid crystals exhibit large-area uniform alignment of sheets,which has the same optical polarized angle and intensity.The monodomain liquid crystals provide bidirectionally ordered skeletons,which can be applied as lightweight thermal management materials with bidirectionally high thermal and electrical conductivity.Furthermore,we extend the controllable topology of two-dimensional colloids by introducing singularities and disclinations in monodomain liquid crystals.Topological structures with defect strength from−2 to+2 were realized.This work provides a facile methodology to study the structural order of soft matter at a macroscopic level,facilitating the fabrication of metamaterials with tunable and highly anisotropic architectures. | Min Cao Senping Liu Qingli Zhu Ya Wang Jingyu Ma Zeshen Li Dan Chang Enhui Zhu Xin Ming Yingjun Liu Yanqiu Jiang Zhen Xu Chao Gao | 2022 | Nano-Micro Letters2022，14，12： | 2 |
| 18 | Negative association of donor age with CD34+ cell dose in mixture allografts of G-CSF-primed bone marrow and G-CSF-mobilized peripheral blood harvests显示文摘 | Li Yan Chang Yingjun Xu Lanping Zhang Xiaohui Huang Xiaojun | 2014 | Chinese Medical Journal2014，，20： | 2 |
| 19 | Study of hot electrons generated from intense laser-plasma interaction employing Image Plate显示文摘Image Plate (IP) is convenient to be used and very suitable for radiation detection because of its advantages such as wide dynamic range, high detective quantum efficiency, ultrahigh sensitivity and superior linearity. The function mechanism and characteristics of IP are introduced in this paper. IP was employed in the study of hot electrons generated from intense laser-plasma interaction. The angular distri- bution and energy spectrum of hot electrons were measured with IP in the experi- ments. The results demonstrate that IP is an effective radiation detector for the study of laser-plasma interaction. | LIANG WenXi LI YuTong XU MiaoHua YUAN XiaoHui ZHENG ZhiYuan ZHANG Yi LIU Feng WANG ZhaoHua LI HanMing JIN Zhan WEI ZhiYi ZHAO Wei LI YingJun ZHANG Jie | 2008 | Science China(Physics,Mechanics & Astronomy)2008，51，10： | 2 |
| 20 | Dynamic dispersion stability of graphene oxide with metal ions显示文摘Graphene oxide(GO),an important chemical precursor of graphene,can stably disperse in aqueous surrounding and undergo aggregation as metal cations introduced.The usual instability of GO with ions is caused by the shielding effect of ions and crosslinking between GO and ions.However,the dynamic stability of GO under ions exchange still remains unclear.Here,we investigated the dynamic dispersion stability of GO with metal ions and observed a redispersion behavior in concentrated Fe3+solution,other than permanent aggregation.The exchange with Fe3+ions drives the reversion of zeta(ζ)potential and enables the redispersion to individual GO-Fe3+complex sheets,following a dynamic electric double layer(EDL)mechanism.It is found that the specifically strong electrostatic shielding effect and coordination attraction between Fe3+and functional oxygen groups allows the selective redispersion of GO in concentrated Fe3+solution.The revealed dynamic dispersion stability complements our understanding on the dispersive stability of GO and can be utilized to fabricate graphene-metal hybrids for rich applications. | Yinghui He Yingjun Liu Fan Guo Kai Pang Bo Fang Ya Wang Dan Chang Zhen Xu Chao Gao | 2020 | Chinese Chemical Letters2020，31，6： | 2 |
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