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Food Science and Human Wellness 2024年第3期13卷 1475-1484页

作者： Fangfang Yan Qun Lu chengming wang Rui Liu College of Food Science and Technology Huazhong Agricultural UniversityWuhan 430070China Key Laboratory of Environment Correlative Dietology(Huazhong Agricultural University) Ministry of EducationWuhan 430070China Key Laboratory of Urban Agriculture in Central China Ministry of Agriculture and Rural AffairsWuhan 430070China

Our previous study has revealed that procyanidin A_(1)(A_(1))and its simulated digestive product(D-A,)can alleviate acrylamide(ACR)-induced intestine cell damage.However,the underlying mechanism remains unknown.In this study,we elucidated the molecular mechanism for and D-A_(1) to alleviate ACR-stimulated IPEC-J2 cell damage.ACR slightly activated nuclear factor erythroid 2-related factor 2(Nrf2)signaling and its target genes,but this activation could not reduce intestine cell damage.A_(1) and D-A_(1) could alleviate ACR-induced cell damage,but the effect was abrogated in cells transiently transfected with Nrf2 small interfering RNA(siRNA).Further investigation confirmed that A_(1) and D-A_(1) interacted with Ketch-like ECH-associated protein 1(Keapl),which boosted the stabilization of Nrf2,subsequently promoted the translocation of Nrf2 into the nucleus,and further increased the expression of antioxidant proteins,thereby inhibiting glutathione(GSH)consumption,maintaining redox balance and eventually alleviating ACR-induced cell damage.Importantly,there was no difference between A_(1) and D-A_(1) treated groups,indicating that A_(1) can tolerate gastrointestinal digestion and may be a potential compound to limit the toxicity of ACR.

关键词： Procyanidin A_1 Digestive products Acrylamide Nuclear factor erythroid 2-related factor 2(Nrf2) Intestinal cell damage

Distal-scanning common path probe for optical coherence tomography

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Journal of Innovative Optical Health Sciences 2024年第3期17卷 84-92页

作者： Zhengyu Chen Bin He Zichen Yin Zhangwei Hu Yejiong Shi chengming wang Xiao Zhang Ning Zhang Linkai Jing Guihuai wang Ping Xue State Key Laboratory of Low-dimensional Quantum Physics and Department of Physics Tsinghua UniversityBeijingChina Frontier Science Center for Quantum Information BeijingChina Jinsp Company Limited BeijingChina Beijing Institute of Technology BeijingChina Institute of Forensic Science Ministry of Public Security BeijingChina Department of Neurosurgery Beijing Tsinghua Changgung HospitalSchool of Clinical Medicine and Institute of Precision MedicineTsinghua UniversityBeijingChina

In this paper,we present a distal-scanning common path probe for optical coherence tomography(OCT)equipped with a hollow ultrasonic motor and a simple and specially designed beam-splitter.This novel probe proves to be able to effectively circumvent polarization and dispersion mismatch caused by fiber motion and is more robust to a variety of interfering factors during the imaging process,experimentally compared to a conventional noncommon path probe.Furthermore,our design counteracts the attenuation of backscattering with depth and the fall-off of the signal,resulting in a more balanced signal range and greater imaging depth.Spectral-domain OCT imaging of phantom and biological tissue is also demonstrated with a sensitivity of∼100dB and a lateral resolution of∼3μm.This low-cost probe offers simplified system configuration and excellent robustness,and is therefore particularly suitable for clinical diagnosis as one-off medical apparatus.

关键词： Common path optical coherence tomography endoscopic probe

Deep neural network-enabled battery open-circuit voltage estimation based on partial charging data

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Journal of Energy Chemistry 2024年第3期90卷 120-132,I0005页

作者： Ziyou Zhou Yonggang Liu chengming Zhang Weixiang Shen Rui Xiong State Key Laboratory of Mechanical Transmission for Advanced Equipment&College of Mechanical and Vehicle Engineering Chongqing UniversityChongqing 400000China Department of Vehicle Engineering School of Mechanical EngineeringBeijing Institute of TechnologyBeijing 100081China Department of Electrical Engineering Harbin Institute of TechnologyHarbin 150000HeilongjiangChina School of Science Computing and Engineering TechnologiesSwinburne University of TechnologyHawthornVictoria 3122Australia

Battery management systems(BMSs) play a vital role in ensuring efficient and reliable operations of lithium-ion batteries.The main function of the BMSs is to estimate battery states and diagnose battery health using battery open-circuit voltage(OCV).However,acquiring the complete OCV data online can be a challenging endeavor due to the time-consuming measurement process or the need for specific operating conditions required by OCV estimation models.In addressing these concerns,this study introduces a deep neural network-combined framework for accurate and robust OCV estimation,utilizing partial daily charging data.We incorporate a generative deep learning model to extract aging-related features from data and generate high-fidelity OCV curves.Correlation analysis is employed to identify the optimal partial charging data,optimizing the OCV estimation precision while preserving exceptional flexibility.The validation results,using data from nickel-cobalt-magnesium(NCM) batteries,illustrate the accurate estimation of the complete OCV-capacity curve,with an average root mean square errors(RMSE) of less than 3 mAh.Achieving this level of precision for OCV estimation requires only around 50 s collection of partial charging data.Further validations on diverse battery types operating under various conditions confirm the effectiveness of our proposed method.Additional cases of precise health diagnosis based on OCV highlight the significance of conducting online OCV estimation.Our method provides a flexible approach to achieve complete OCV estimation and holds promise for generalization to other tasks in BMSs.

关键词： Lithium-ion battery Open-circuit voltage Health diagnosis Deep learning

Redox-neutral C–H acylation of indole with ketene by manganese catalysis

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Green Synthesis and Catalysis

Green Synthesis and Catalysis 2022年第3期3卷 287-290页

作者： chengming wang Qijing Zhang College of Chemistry and Materials Science Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and ApplicationsJinan UniversityGuangzhou 510632China

A low-cost manganese-catalyzed oxidant-free selective C–H acylation of indole with ketene is reported.This protocol features mild reaction conditions and good functional group tolerance.The yield is from middle to excellent.The acylation products can be further converted to diverse useful compounds.Mechanism study reveals the acylation transformation possibly undergoes a cyclomanganated complex species as reactive intermediate.

关键词： Manganese Indole Acylation Ketene Redox-neutral

Construction of highly congested quaternary carbon centers by NHC catalysis through dearomatization

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绿色合成与催化(英文)

绿色合成与催化(英文) 2023年第3期4卷 263-267页

作者： Lixia Liu Cong-Ying Zhou chengming wang College of Chemistry and Materials Science Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and ApplicationsJinan UniversityGuangzhou 510632China

A NHC-catalyzed hypervalent iodine reagents and transition-metal free redox-neutral dearomatization of phenols is reported.This protocol provides an efficient access for highly congested quaternatry carbon centers construction.It also features operationally simplicity,mild reaction conditions and good functional group tolerance.Moreover,the reported procedure can be easily emplified to 1 g scale.Mechanism study reveals the dearomative transformation possibly undergoes a single electron transfer process with NHC radical cation as a reactive intermediate.

关键词： NHC Quaternary carbon center Dearomatization Radical SET

Procyanidin Aand its digestive products alleviate acrylamide-induced IPEC-J2 cell damage through regulating Keap1/Nrf2 pathway

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Food Science and Human Wellness 2023年

作者： Fangfang Yan Qun Lu chengming wang Rui Liu College of Food Science and Technology， Huazhong Agricultural University c Key Laboratory of Urban Agriculture in Central China， Ministry of Agriculture and Rural Affairs Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)， Ministry of Education

Our previous study has revealed that procyanidin A1(A1) and its simulated digestive product (D-A1) can alleviate acrylamide (ACR)-induced intestine cell damage. However， the underlying mechanism remains unknown. In this study， we elucidated the molecular mechanism for A1and D-A1to alleviate ACR-stimulated IPEC-J2 cell damage. ACR slightly activated nuclear factor erythroid 2-related factor 2 (Nrf2) signaling and its target genes， but this activation could not reduce intestine cell damage. A1and D-A1could alleviate ACR-induced cell damage， but the effect was abrogated in cells transiently transfected with Nrf2 small interfering RNA (siRNA). Further investigation confirmed that A1and D-A1interacted with Kelch-like ECH-associated protein 1 (Keap1)， which boosted the stabilization of Nrf2， subsequently promoted the translocation of Nrf2 into the nucleus， and further increased the expression of antioxidant proteins， thereby inhibiting glutathione (GSH) consumption， maintaining redox balance and eventually alleviating ACR-induced cell damage. Importantly， there was no difference between A1and D-A1treated groups， indicating that A1can tolerate gastrointestinal digestion and may be a potential compound to limit the toxicity of ACR.

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Phase engineering oriented defect-rich amorphous/crystalline RuO_(2) nanoporous particles for boosting oxygen evolution reaction in acid media

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Nano Research Energy 2023年第3期2卷 48-55页

作者： chengming wang Qinghong Geng Longlong Fan Jun-Xuan Li Lian Ma Cuiling Li Key Laboratory of Cluster Science Ministry of EducationBeijing Key Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China CAS Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China Binzhou Institute of Technology Binzhou 256600China

Imposing phase engineering to porous materials is promising to realize outperforming electrocatalytic performances by taking advantages of the merits of porous nanoarchitecture and heterophase structure.In this work,amorphous/crystalline ruthenium oxide(RuO_(2))porous particles with rationally regulated heterophases are successfully prepared by integrating the phase engineering into the porous material synthesis.The resultant defect-rich amorphous/crystalline RuO_(2)porous particles exhibit excellent electrocatalytic performance toward the oxygen evolution reaction,achieving a low overpotential of 165 mV at a current density of 10 mA·cm^(−2)and a high mass activity up to 133.8 mA·cm^(-2)at a low overpotential of 200 mV.This work indicates that the synergistic effect of amorphous/crystalline heterophase and porous structural characteristics enables RuO_(2)to trigger a superior electrocatalytic activity.

关键词： porous material phase engineering ruthenium oxide(RuO_(2)) oxygen evolution reaction(OER) electrocatalysis

N-doped carbon-stabilized PtCo nanoparticles derived from Pt@ZIF-67： Highly active and durable catalysts for oxygen reduction reaction

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Nano Research 2017年第9期10卷 3228-3237页

作者： Nana Du chengming wang Ran Long Yujie Xiong Hefei National Laboratory for Physical Sciences at the Microscale iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) School of Chemistry and Materials Science and National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 China School of Chemistry and Materials Engineering Fuyang Normal College Fuyang 236041 China

The development of catalysts with high activity and durability for the cathodic oxygen reduction reaction (ORR) in both alkaline and acidic media is important for improving the performance of the proton exchange membrane (PEM) fuel cells. This can be achieved by dispersing Pt-based alloy nanoparticles inside N-doped porous carbon frameworks. However, it still requires the development of a facile method towards synthesizing this unique hybrid structure. In this work, we demonstrate that N-doped carbon-stabilized PtCo nanoparticles (PtCo@NC) can be facilely synthesized via thermal decomposition of Pt-incorporated Co-based zeolitic imidazolate framework (Pt@ZIF-67). The thickness of the carbon framework can be optimized to enable excellent durability, in sharp contrast to a commercial Pt/C catalyst. The mass activities achieved by optimizing the thickness of the carbon framework are 0.80 and 0.82 A·mgPt –1 at 0.9 V vs. RHE in alkaline and acidic electrolytes, respectively, which are nearly 8 times greater than those of the Pt/C. This work provides an alternative approach to low-cost and high-performance catalysts for both alkaline and acidic fuel cells.

关键词： oxygen reduction reaction PtCo nanoparticles ZIF-67 N-doped carbon metal organic frameworks

Assessment of tree-ring mercury radial translocation and age effect in Masson pine:Implications for historical atmospheric mercury reconstruction

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Journal of Environmental Sciences 2024年第4期138卷 266-276页

作者： Xu Liu Xun wang Dingyong wang College of Resources and Environment Southwest UniversityChongqing 400715China State Key Laboratory of Environmental Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China

The tree ring has been regarded as an emerging archive to reconstruct historical atmospheric mercury(Hg)trends,but with the large knowledge gaps in the reliability.In this study,we comprehensively evaluated the Hg source,radial translocation and age effect of Masson pine(Pinus massoniana)tree ring at Mt.Jinyun in Chongqing,to assess the suitability of such tree ring as the archive of atmospheric Hg.Results showed that distinct variabilities among Masson pine tree-ring Hg concentration profiles.The Hg concentration significantly increased along with stem height(P<0.05),indicating the Hg in tree rings mainly derived from foliage uptake atmospheric Hg.We found a distinct age effect that the tree ring of young trees had the higher Hg concentration.Besides,we used the advection-diffusion model to demonstrate how Hg concentration shifted by the advection or/and diffusion in tree rings.The modeling results showed that the advection induced radial translocation during the young growth period of tree was a plausible mechanism to result in the tree-ring Hg record largely different from the trend of anthropogenic Hg emissions in Chongqing.We finally suggest that in further Hg dendrochemistry,better discarding the tree-ring Hg profile of the young growth period to reduce impacts of the radial translocation and age effect.

关键词： Masson pine Tree-ring mercury Radial translocation Tree age effect

Phosphate-induced interfacial electronic engineering in VPO_(4)-Ni_(2)P heterostructure for improved electrochemical water oxidation

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Chinese Chemical Letters 2022年第1期33卷 452-456页

作者： Kun Chen Keke Mao Yu Bai Delong Duan Shuangming Chen chengming wang Ning Zhang Ran Long Xiaojun Wu Li Song Yujie Xiong Hefei National Laboratory for Physical Sciences at the Microscale Frontiers Science Center for Planetary Exploration and Emerging TechnologiesSchool of Chemistry and Materials ScienceNational Synchrotron Radiation Laboratoryand CAS Center for Excellence in NanoscienceUniversity of Science and Technology of ChinaHefei 230026China Institute of Energy Hefei Comprehensive National Science CenterHefei 230031China School of Energy and Environment Science Anhui University of TechnologyMaanshan 243032China Department of Applied Physics The Hong Kong Polytechnic UniversityHong KongChina

Anodic oxygen evolution reaction(OER)is the key bottleneck for water electrolysis technique owing to its sluggish reaction kinetics.Interfacial engineering on the rationally designed heterostructure can regulate the electronic states efficiently for intrinsic activity improvement.Here,we report a co-phosphorization approach to construct a VPO_(4)-Ni_(2)P heterostructure on nickel foam with strongly chemical binding,wherein phosphate acts as electronic modifier for Ni_(2)P electrocatalyst.Profiting from the interfacial interaction,it is uncovered that electron shifts from Ni_(2)P to VPO_(4)to render valence increment in Ni species.Such an electronic manipulation rationalizes the chemical affinities of various oxygen intermediates in OER pathway,giving a substantially reduced energy barrier.As a result,the advanced VPO_(4)-Ni_(2)P heterostructure only requires an overpotential of 289 mV to deliver a high current density of 350 mA/cm^(2)for OER in alkaline electrolyte,together with a Tafel slope as low as 28 mV/dec.This work brings fresh insights into interfacial engineering for advanced electrocatalyst design.

关键词： Heterostructure Interfacial electron transfer Phosphate Oxygen evolution reaction Chemical affinity