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| 1 | Bifunctional Liquid Metals Allow Electrical Insulating Phase Change Materials to Dual-Mode Thermal Manage the Li-Ion Batteries显示文摘Phase change materials(PCMs)are expected to achieve dual-mode thermal management for heating and cooling Li-ion batteries(LIBs)according to real-time thermal conditions,guaranteeing the reliable operation of LIBs in both cold and hot environments.Herein,we report a liquid metal(LM)modified polyethylene glycol/LM/boron nitride PCM,capable of dual-mode thermal managing the LIBs through photothermal effect and passive thermal conduction.Its geometrical conformation and thermal pathways fabricated through ice-template strategy are conformable to the LIB’s structure and heat-conduction characteristic.Typically,soft and deformable LMs are modified on the boron nitride surface,serving as thermal bridges to reduce the contact thermal resistance among adjacent fillers to realize high thermal conductivity of 8.8 and 7.6 W m^(−1) K^(−1) in the vertical and in-plane directions,respectively.In addition,LM with excellent photothermal performance provides the PCM with efficient battery heating capability if employing a controllable lighting system.As a proof-of-concept,this PCM is manifested to heat battery to an appropriate temperature range in a cold environment and lower the working temperature of the LIBs by more than 10℃ at high charging/discharging rate,opening opportunities for LIBs with durable working performance and evitable risk of thermal runaway. | Cong Guo Lu He Yihang Yao Weizhi Lin Yongzheng Zhang Qin Zhang Kai Wu Qiang Fu | 2022 | Nano-Micro Letters2022，14，12： | 1 |
| 2 | Development Strategies in Transition Metal Borides for Electrochemical Water Splitting显示文摘Electrochemical water splitting is a feasible method for producing environmental benignity energy of hydrogen,while high price and low availability on the earth of noble electrocatalysts constrain their global-scale application.Transition metal borides(TMBs)have displayed unique metalloid characteristic and outstanding performance for oxygen evolution reaction(OER)and hydrogen evolution reaction(HER)in the last few decades.Herein,recent developments of the TMBs for HER and OER are summarized.Initially,the impact factors and relevant evaluation of electrocatalytic performance are described,that is,overpotential,Tafel slope and exchange current density,stability,faradaic efficiency,turnover frequency,mass and specific activities.Moreover,the optimization strategies of borides are emphasized,which principally include coupling with effective substrates,elemental doping,phase modification,interfacial engineering,and morphology control.Finally,in order to reach the goal of application,the remaining challenges and perspectives are given to point out a direction for enhancing the performance of borides. | Yihang Yao Zhaoyuan Zhang Lifang Jiao | 2022 | Energy & Environmental Materials2022，5，2： | 1 |
| 3 | High-performance all-solution-processed inverted quantum dot light-emitting diodes enabled by water treatment显示文摘All-solution-processed inverted quantum dot(QD)light-emitting diodes(QLEDs)with transparent bottom cathodes can be directly connected to the n-type thin-film transistors,offering a feasible solution for low-cost active matrix-driven QD displays.However,the subsequent solution-deposition of the hole-transporting layer destroys the underneath QD films,resulting in largely deteriorated device performance.Various strategies have been implemented to prevent QD film from dissolution,but all at a heavy cost of device performance suffering from either reduced efficiency or increased driving voltage.Here,a facile and effective water-treatment approach for QD film to fabricate inverted QLEDs through all solution processing is reported.The water treatment substitutes the long-chain oleate ligands with hydroxyl groups,resulting in significantly improved non-polar solvent resistance of the QD films.Importantly,the QD films reserve their excellent photoluminescence efficiency after water treatment.With the water-treated QD film as the emissive layer,all-solution-processed inverted red QLED with a peak external quantum efficiency of 19.6%,a turn-on voltage of 1.8 V,and a T50 operational lifetime of 150,000 h at 100 cd·m^(-2) was achieved.Furthermore,efficient and low-voltage-driven green and blue QLEDs can also be prepared with this method.This work provides a feasible strategy for the fabrication of high-performance all-solution-processed inverted QLEDs,paving the way toward achieving QLEDs by all ink-jet printing. | Qianqing Hu Junjie Si Desui Chen Xiaoming Hao Rui Xu Yihang Du Zhuopeng Du Xinquan Gong Hong Zhao Peiqing Cai Qi Ai Xin Yao Yu Yan Zenan Zhang Muzhi Cai Wei Liu Yongyin Kang Zugang Liu | 2023 | Nano Research2023，16，7： | 0 |
| 4 | Recombinant expression, biophysical and functional characterization of ClpS from Mycobacterium tuberculosis显示文摘Intracellular proteolysis is attracting more and more attention for its unique and important character in Mycobacterium tuberculosis(Mt).The ClpS protein from Mt(MtClpS)plays a critical role in intracellular proteolysis by recognizing N-end rule substrates,which makes it become a potential target for antibacterial drugs.However,the molecular mechanism of MtClpS recognizing N-end rule substrates remains unclear.Preparation of highly concentrated and pure MtClpS protein is a prerequisite for further structural and functional studies.In the present work,we tried several fusion tags and various expression conditions to maximize the production of MtClpS in Escherichia coli.We established an efficient approach for preparing the MtClpS protein with a high yield of 24.7 mg/l and a high purity of 98%.After buffer screening,we obtained a stable MtClpS protein sample concentrated at 0.63 mM in the presence of glycerol,l-Arginine,and l-Glutamate.Moreover,circular dichroism characterization indicated that the secondary structure of MtClpS consists of 38%α-helix and 24%β-sheet.The 2D 1H-15N HSQC nuclear magnetic resonance spectrum showed a good dispersion of resonance peaks with uniform intensity,indicating that the purified MtClpS protein was well folded and conformationally homogeneous.Isothermal titration calorimetry experiments revealed significant interactions of MtClpS with N-end rule peptides beginning with Leu,Tyr,Trp,or Phe.Furthermore,residues D34,D35,and H66 were confirmed as key residues for MtClpS recognizing the N-end rule peptide.The successful expression and biophysical characterization of MtClpS enabled us to gain insight into the molecular mechanism of MtClpS recognizing N-end rule substrates.The obtained stable and pure recombinant MtClpS will enable future inhibitor screening experiments. | Chenyun Guo Yihang Xiao Fangkai Bs Weiliang Lin Huilin Wang Hongwei Yao Donghai Lin | 2019 | Acta Biochimica et Biophysica Sinica2019，51，11： | 0 |
| 5 | Anti-inflammatory effects of amarogentin on 2,4-dinitrochlorobenzene-induced atopic dermatitis-like mice and in HaCat cells显示文摘Background:Amarogentin(AMA)is a secoiridoid glycoside extracted from Swertia and Gentiana roots and exhibits many biological effects such as antioxidative,antiinflammatory,and antitumor activities.Atopic dermatitis(AD)is a chronic inflammatory skin disease caused by disorders in the regulation of multiple inflammatory cytokines.No effective cure has been found for AD now.Methods:We constructed the HaCat and splenocyte model and tested the inhibitory effect of AMA on IL-4,IL-6,and IL-13 secretions using enzyme-linked immunosorbent assay(ELISA).The AD mouse model was constructed and treated with AMA,the severity of skin lesions was observed,epidermal tissue was collected,and epidermal thickness and mast cell infiltration were observed using hematoxylin and eosin and toluidine blue staining,respectively.The expression of kallikrein-related peptidase 7(KLK7)and filaggrin(FLG)was detected using immunostaining and Western blot analysis.The mRNA expression of KLK7 and FLG was detected using quantitative polymerase chain reaction(qPCR).Blood immunoglobulin E(IgE)secretion was detected.Results:AMA inhibited IL-6 secreted by tumor necrosis factor(TNF)-α-induced HaCaT cells and reduced IL-4 and IL-13 secreted by phytohemagglutinin(PHA)-induced primary cells in the mice spleen.It was found that the treatment of AMA with 2,4-din itrochlorobenzene-induced AD-like mice could promote the recovery of dermatitis,reduce the score of dermatitis severity and the scratching frequency,treat the skin lesions,reduce the epidermal thickness,decrease the infiltration of mast cells,reduce the IgE level in serum,decrease the expression levels of AD-related cytokines,increase protein and mRNA expression of FLG,and reduce the protein and mRNA expression of KLK7 in the skin tissues of AD-like mice.Conclusion:In conclusion,AMA inhibits inflammatory response at the cellular level,and AMA reduces the validation response of specific dermatitis mice,relieves pruritus,and repairs the damaged skin barrier. | Qian Zhang Hanlin Wang Cheng Ran Yansi Lyu Fei Li Yihang Yao Shaojun Xing Li Wang Si Chen | 2023 | Animal Models and Experimental Medicine2023，6，3： | 0 |
| 6 | Promoting catalysis activity with optimizable self-generated Co-Fe alloy nanoparticles for efficient CO_(2)electrolysis performance upgrade显示文摘Stable and flexible metal nanoparticles(NPs)with regeneration ability are critical for long-term operation of solid oxide electrolysis cells(SOECs).Herein,a novel perovskite electrode with stoichiometric Pr_(0.4)Sr_(0.6)Co_(0.125)Fe_(0.75)Mo_(0.125)O_(3)−δ(PSFCM)is synthesized and studied,which undergoes multiple redox cycles to validate its structural stability and NPs reversibility.The Co-Fe alloy has exsolved from the parent bulk under reducing atmosphere,and is capable of reincorporation into the parent oxide after re-oxidation treatment.During the redox process,we successfully manipulate the size and population density of the exsolved NPs,and find that the average particle size significantly reduces but the population density increases correspondingly.The electrode polarization resistance of the symmetric cell remains stable for 450 h,and even activates after the redox cycling,which may be attributed to the higher quantity and larger specific surface area of the regenerated Co-Fe alloy NPs.Moreover,the electrochemical performance towards carbon dioxide reduction reaction(CO_(2)RR)is evaluated,and the CO_(2)electrolyzer consisting of CoFe@PSCFM-Ce_(0.8)Sm_(0.2)O_(1.9)(SDC)dual-phase electrode exhibits an excellent current density of 1.42 A·cm^(−2)at 1.6 V,which reaches 1.7 times higher than 0.83 A·cm^(−2)for the pristine PSCFM electrode.Overall,with this flexible and reversible high-performance SOEC cathode material,new options and perspectives are provided for the efficient and durable CO_(2)electrolysis. | Kun Zhang Dong Zhang Yao Wang Yihang Li Cong Ren Mingyue Ding Tong Liu | 2023 | Nano Research2023，16，8： | 0 |
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