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| 1 | Helicity‐dependent THz emission induced by ultrafast spin photocurrent in nodal‐line semimetal candidate Mg3Bi2显示文摘Helicity-dependent ultrafast spin current generated by circularly polarized photons in topological materials holds the crux to many technological improvements,such as quantum communications,on-chip communication processing and storage.Here,we present the manipulation of helicity-dependent terahertz emission generated in a nodal line semimetal candidate Mg3Bi2 by using photon polarization states.The terahertz emission is mainly ascribed to the helicity-dependent photocurrent that is originated from circular photogalvanic effects,and the helicity-independent photocurrent that is attributed to linear photogalvanic effect.Our work will inspire more explorations into novel nodal line semimetals and open up new opportunities for developing ultrafast optoelectronics in the topological system. | Mingyu Tong Yuze Hu Xiangnan Xie Xiegang Zhu Zhenyu Wang Xiang'ai Cheng Tian Jiang | 2020 | Opto-Electronic Advances2020，3，12： | 3 |
| 2 | Hydrogel-elastomer-based stretchable strain sensor fabricated by a simple projection lithography method显示文摘Stretchable strain sensor detects a wide range of strain variation and is therefore a key component in various applications.Unlike traditional ones made of elastomers doped with conductive components or fabricated with liquid conductors,ionically conductive hydrogel-based strain sensors remain conductive under large deformations and are biocompatible.However,dehydration is a challenging issue for the latter.Researchers have developed hydrogel-elastomer-based strain sensors where an elastomer matrix encapsulates a hydrogel circuit to prevent its dehydration.However,the reported multistep approaches are generally time-consuming.Our group recently reported a multimaterial 3D printing approach that enables fast fabrication of such sensors,yet requires a self-built digital-light-processing-based multimaterial 3D printer.Here,we report a simple projection lithography method to fabricate hydrogel-elastomer-based stretchable strain sensors within 5 minutes.This method only requires a UV projector/lamp with photomasks;the chemicals are commercially available;the protocols for preparing the polymer precursors are friendly to users without chemistry background.Moreover,the manufacturing flexibility allows users to readily pattern the sensor circuit and attach the sensor to a 3D printed soft pneumatic actuator to enable strain sensing on the latter.The proposed approach paves a simple and versatile way to fabricate hydrogel-elastomer-based stretchable strain sensors and flexible electronic devices. | Zhenqing Li Xiangnan He Jianxiang Cheng Honggeng Li Yuan-Fang Zhang Xiaojuan Shi Kai Yu Hui Ying Yang Qi Ge | 2021 | International Journal of Smart and Nano Materials2021，12，3： | 1 |
| 3 | Analysis of the Influence of Fuel Additives on Automobile Exhaust Emission显示文摘In order to investigate the effect of a certain type of fuel additives on the emission and performance of vehicles,according to the Limits and Measurement Methods for Exhaust Pollutants from Vehicles Equipped Ignition Engine under Two-speed Idle Conditions and Simple Driving Mode Conditions(GB 18285-2005),the double idle method is used to detect the emission changes of different vehicles before and after the use of a certain type of fuel additives,and then the fuel consumption and power are evaluated.The results show that the use of fuel additives and the appropriate selection of fuel can effectively reduce the emissions of vehicle pollutants,which is of great significance for energy saving and emission reduction. | Bo CHENG Lan TANG Xiangnan PAN Haiyan CHEN | 2020 | Meteorological and Environmental Research2020，11，5： | 0 |
| 4 | Inner-pore reduction nucleation of palladium nanoparticles in highly conductive wurster-type covalent organic frameworks for efficient oxygen reduction electrocatalysis显示文摘Covalent organic frameworks(COFs)have emerged as a class of promising supports for electrocatalysis because of their advantages including good crystallinity,highly ordered pores,and structural diversity.However,their poor conductivity represents the main obstruction to their practical application.Here,we reported a novel synthesis strategy for synergistically endowing a triphenylamine-based COFs with improved electrical conductivity and excellent catalytic activity for oxygen reduction,via the in-situ redox deposition and confined growth of palladium nanoparticles inside the porous structure of COFs using reductive triphenylamine frameworks as reducing agent;meanwhile,the triphenylamine unit was oxidized to radical cation structure and affords radical cation COFs with conductivity as high as3.2*10^(-1) S m^(-1).Such a uniform confine palladium nanoparticle on highly conductive COFs makes it an efficient electrocatalyst for four-electron oxygen reduction reaction(4e-ORR),showing excellent activities and fast kinetics with a remarkable half-wave potential(E_(1/2))of 0.865 V and an ultralow Tafel slope of 39.7 mV dec^(-1) in alkaline media even in the absence of extra commercial conductive fillers.The generality of this strategy was proved by preparing the different metal and metal alloy nanoparticles supported on COFs(Au@COF,Pt@COF,AuPd@COF,AgPd@COF,and PtPd@COF)using reductive triphenylamine frameworks as reducing agent.This work not only provides a facile strategy for the fabrication of highly conductive COF supported ORR electrocatalysts,but also sheds new light on the practical application of Zn-air battery. | Weiwen Wang Lu Zhang Tianping Wang Zhen Zhang Xiangnan Wang Chong Cheng Xikui Liu | 2023 | Journal of Energy Chemistry2023，，2： | 0 |
| 5 | Verification of SARS-CoV-2-encoded small RNAs and contribution to infection-associated lung inflammation显示文摘To the Editor:Severe_acute_respiratory,syndrome coronavirus 2(SARS-CoV-2)is the virus causing coronavirus disease2019(COVID-19).[1]As anewevolutionary branch within coronaviruses,SARS-CoV-2 contains around 29.8 kilobase and shows 79.2%identity with SARS-CoV-1. | Cheng Zhang Cheng Liu Lin Jiang Lunbiao Cui Chunyu Li Guoxin Song Rui Xu Xiangnan Geng Changxing Luan Feng Chen Yan Chen Baoli Zhu Wei Zhu | 2022 | Chinese Medical Journal2022，，15： | 0 |
| 6 | 酪氨酸激酶受体Tie1的配体LECT2在肝脏纤维化中的重要功能显示文摘文章简介慢性肝病对人们健康有着严重威胁,其特点是炎症和不断进展的纤维化,最终导致细胞功能丢失、组织结构受损、乃至致死性器官功能衰竭,相当部分的肝癌患者也是由肝纤维化肝硬化演变而来。目前世界上尚无有效药物来治疗肝纤维化,针对肝纤维化发生发展机制及其治疗方法的研究将有可能为治疗大部分肝脏疾病带来希望。 | 徐濛 徐洪海 林媛 Xiangnan Sun Li-Jing Wang Zhe-Ping Fang Xue-Han Su Xiang-Jing Liang Yang Hu Zhi-Min Liu Yuanxiong Cheng Yuanyuan Wei Jiabin Li Li Li Hong-Juan Liu Zhiqiang Cheng Na Tang Chao Peng Tingting Li Tengfei Liu Liang Qiao Dalei Wu 丁彦青 周伟杰 | 2020 | 科学新闻2020，，2： | 0 |
| 7 | Cost-effective,environmentally-sustainable and scale-up synthesis of vertically oriented graphenes from waste oil and its supercapacitor applications显示文摘Vertically oriented graphenes(VGs)have attracted tremendous attention in a variety of energy storage-related applications.However,the high cost of preparing VGs significantly hinders their practical applications.Herein we introduce the Ar-plasma-enhanced chemical vapor deposition to demonstrate the cost-effective,environmentally-sustainable,and scale-up synthesis of VGs from waste oil.In our system,Ar gas can improve the electron energy and ionization rate of plasma,which breaks down the chemical bonding of waste oil into essential species to etch the amorphous carbon,yielding large-area VGs(12×3.5 cm^(2))with highly-oriented structure and superior growth efficiency beyond VGs from hydrocarbon precursors.In the supercapacitor applications,the VG-based electrode exhibits significantly enhanced capacitance(~4 times that from conventional hydrocarbon gases)and efficient AC(alternating current)filtering capability RC(resistor-capacitor)(time constant of of 163μs at 120 Hz),which is obviously superior to the non-oriented counterpart.Besides,MnO_(2)/VGs composite electrode is prepared to deliver a maximum energy density of~33.2 Wh/kg at 1.0 kW/kg and a power density of 10.2 kW/kg at 22.9 Wh/kg.In the end,the economic analysis suggests that the total cost of VGs can be reduced by~32%.This work provides an environment-friendly and low-cost avenue for preparing VGs for advanced energy storage applications. | Wenhao Kuang Huachao Yang Chongyan Ying Biyao Gong Jing Kong Xiangnan Cheng Zheng Bo | 2021 | Waste Disposal and Sustainable Energy2021，3，1： | 0 |
| 8 | Bioinspired activation of silent synapses in layered materials for extensible neuromorphic computing显示文摘Activation of silent synapses is of great significance for the extension of neural plasticity related to learning and memory.Inspired by the activation of silent synapses via receptor insertion in neural synapses,we propose an efficient method for activating artificial synapses through the intercalation of Sn in layered a-MoO_(3).Sn intercalation is capable of switching on the response of layered a-MoO_(3)to the stimuli of visible and near infrared light by decreasing the bandgap.This mimics the receptor insertion process in silent neural synapses.The Sn-intercalated MoO_(3)(Sn-MoO_(3))exhibits persistent photoconductivity due to the donor impurity induced by Sn intercalation.This enables the two-terminal Sn-MoO_(3)device promising optoelectronic synapse with an ultrahigh paired pulse facilitation(PPF)up to 199.5%.On-demand activation and tunable synaptic plasticity endow the device great potentials for extensible neuromorphic computing.Superior performance of the extensible artificial neural network(ANN)based on the Sn-MoO_(3)synapses are demonstrated in pattern recognition.Impressively,the recognition accuracy increases from 89.7%to 94.8%by activating more nodes into the ANN.This is consistent with the recognition process of physical neural network during brain development.The intercalation engineering of MoO_(3)may provide inspirations for the design of high-performance neuromorphic computing architectures. | Yan Kang Yabo Chen Yinlong Tan Hao Hao Cheng Li Xiangnan Xie Weihong Hua Tian Jiang | 2023 | Journal of Materiomics2023，9，4： | 0 |
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