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| 1 | Observation of unconventional anomalous Hall effect in epitaxial CrTe thin films显示文摘 | Dapeng Zhao Liguo Zhang Iftikhar Ahmed Malik Menghan Liao Wenqiang Cui Xinqiang Cai Cheng Zheng Luxin Li Xiaopeng Hu Ding Zhang Jinxing Zhang Xi Chen Wanjun Jiang Qikun Xue | 2018 | Nano Research2018,11,6: | 3 |
| 2 | Memorable full-color circularly polarized luminescence from chiral co-assembled polymer films enabled by multipath transfer显示文摘The modulation of circularly polarized luminescence(CPL)is of importance for display and asymmetric chemical synthesis.However,the underlying mechanism of CPL transfer remains rarely studied.Herein,we rationally design a multipath transfer system including multistep chirality transfer(MCT)and sequential fluorescence resonance energy transfer(SFRET),and we are the first to fabricate memorable full-color CPL-active films with a high dissymmetry factor(~10^(-2)).Specifically,(P/M)-helical nanofibers are constructed by co-assembly between an achiral polymer,poly(9,9-di-n-octylfluorene)(PF8),and easy-to-remove R/S-limonene.When matching achiral emitters are added,the PF8 mediates MCT and simultaneously triggers the SFRET process.Furthermore,full-color CPL memory is realized after removing the chiral source.Molecular simulation and structure analysis indicate that the robust helical superstructure of PF8 provides chiral sites to accommodate emitters,which is essential for CPL transfer and memory.This work provides a novel strategy for constructing CPL-active materials in an aggregated state and insights into CPL transfer and memory. | Gong Zhang Yinglong Bao Menghan Pan Nianwei Wang Xiaoxiao Cheng Wei Zhang | 2023 | Science China Chemistry2023,66,4: | 0 |
| 3 | A bi-functional strategy involving surface coating and subsurface gradient co-doping for enhanced cycle stability of LiCoO_(2) at 4.6 V显示文摘Layered LiCoO_(2)(LCO)acts as a dominant cathode material for lithium-ion batteries(LIBs)in 3C products because of its high compacted density and volumetric energy density.Although improving the high cutoff voltage is an effective strategy to increase its capacity,such behavior would trigger rapid capacity decay due to the surface or/and structure degradation.Herein,we propose a bi-functional surface strategy involving constructing a robust spinel-like phase coating layer with great integrity and compatibility to LiCoO_(2) and modulating crystal lattice by anion and cation gradient co-doping at the subsurface.As a result,the modified LiCoO_(2)(AFM-LCO)shows a capacity retention of 80.9%after 500 cycles between 3.0and 4.6 V.The Al,F,Mg enriched spinel-like phase coating layer serves as a robust physical barrier to effectively inhibit the undesired side reactions between the electrolyte and the cathode.Meanwhile,the Al,F,Mg gradient co-doping significantly enhances the surficial structure stability,suppresses Co dissolution and oxygen release,providing a stable path for Li-ions mobility all through the long-term cycles.Thus,the surface bi-functional strategy is an effective method to synergistically improve the electrochemical performances of LCO at a high cut-off voltage of 4.6 V. | Yun He Xiaoliang Ding Tao Cheng Hongyu Cheng Meng Liu Zhijie Feng Yijia Huang Menghan Ge Yingchun Lyu Bingkun Guo | 2023 | Journal of Energy Chemistry2023,,2: | 0 |
| 4 | Localization for mixed near-field and far-field sources under impulsive noise显示文摘In order to solve the problem that the performance of traditional localization methods for mixed near-field sources(NFSs)and far-field sources(FFSs)degrades under impulsive noise,a robust and novel localization method is proposed.After eliminating the impacts of impulsive noise by the weighted out-lier filter,the direction of arrivals(DOAs)of FFSs can be estimated by multiple signal classification(MUSIC)spectral peaks search.Based on the DOAs information of FFSs,the separation of mixed sources can be performed.Finally,the estimation of localizing parameters of NFSs can avoid two-dimension spectral peaks search by decomposing steering vectors.The Cramer-Rao bounds(CRB)for the unbiased estimations of DOA and range under impulsive noise have been drawn.Simulation experiments verify that the proposed method has advantages in probability of successful estimation(PSE)and root mean square error(RMSE)compared with existing localization methods.It can be concluded that the proposed method is effective and reliable in the environment with low generalized signal to noise ratio(GSNR),few snapshots,and strong impulse. | GAO Hongyuan ZHANG Yuze DU Ya’nan CHENG Jianhua CHEN Menghan | 2024 | Journal of Systems Engineering and Electronics2024,35,2: | 0 |
| 5 | Green functional carbon dots derived from herbal medicine ameliorate blood–brain barrier permeability following traumatic brain injury显示文摘To repair the blood–brain barrier(BBB)after traumatic brain injury(TBI)remains a multidisciplinary challenge.No first-line drugs are available.Here,we reported a novel and non-toxic functional negative-charged carbon dots(CDs)generated from green Semen pruni persicae and Carthamus tinctorius L.(TH-CDs)through a hydrothermal synthesis without any organic solvent.The surface of TH-CDs retained part functional groups of active pharmacophores from both drugs.TH-CDs could improve the neurological function,brain edema,neuronal damage,and the BBB permeability by tail vein injection of mice models without systemic toxicity.Furthermore,higher expression of tight junction proteins claudin 5 and ZO-1 was observed after TH-CDs administration,which may be due to the electrostatic interaction between TH-CDs and claudin 5.Our study highlights an inexpensive,green,non-toxic,and intravenous functional TH-CD,which represents a potential TBI treatment strategy. | Weikang Luo Lianglin Zhang Xuexuan Li Jun Zheng Quan Chen Zhaoyu Yang Menghan Cheng Yao Chen Yao Wu Wei Zhang Tao Tang Yang Wang | 2022 | Nano Research2022,15,10: | 0 |
| 6 | Adult-born neurons in critical period maintain hippocampal seizures via local aberrant excitatory circuits显示文摘Temporal lobe epilepsy(TLE),one common type of medically refractory epilepsy,is accompanied with altered adult-born dentate granule cells(abDGCs).However,the causal role of abDGCs in recurrent seizures of TLE is not fully understood.Here,taking advantage of optogenetic and chemogenetic tools to selectively manipulate abDGCs in a reversible manner. | Liying Chen Yingwei Xu Heming Cheng Zhongxia Li Nanxi Lai Menghan Li Yeping Ruan Yang Zheng Fan Fei Cenglin Xu Jiao Ma Shuang Wang Yan Gu Feng Han Zhong Chen Yi Wang | 2023 | Signal Transduction and Targeted Therapy2023,8,7: | 0 |