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Low‑Temperature Fabrication of Stable Black‑Phase CsPbI_(3)Perovskite Flexible Photodetectors Toward Wearable Health Monitoring

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Nano-Micro Letters 2025年第3期17卷 232-245页

作者： Yingjie Zhao Yicheng Sun Chaoxin Pei Xing Yin Xinyi Li Yi Hao mengru zhang Meng Yuan Jinglin Zhou Yu Chen Yanlin Song College of Chemistry and Pingyuan Laboratory Zhengzhou UniversityZhengzhou 450001People’s Republic of China Key Laboratory of Green Printing Institute of ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Key Laboratory of Bio‑Inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049People’s Republic of China

Flexible wearable optoelectronic devices fabricated fromorganic–inorganic hybrid perovskites significantly accelerate the developmentof portable energy,biomedicine,and sensing fields,but their poor thermal stabilityhinders further ***,all-inorganic perovskites possessexcellent thermal stability,but black-phase all-inorganic perovskite filmusually requires high-temperature annealing steps,which increases energy consumptionand is not conducive to the fabrication of flexible wearable *** this work,an unprecedented low-temperature fabrication of stable blackphaseCsPbI3perovskite films is demonstrated by the in situ hydrolysis reactionof diphenylphosphinic chloride *** released diphenyl phosphateand chloride ions during the hydrolysis reaction significantly lower the phasetransition temperature and effectively passivate the defects in the perovskitefilms,yielding high-performance photodetectors with a responsivity of 42.1 AW−1 and a detectivity of 1.3×10^(14)***,high-fidelity imageand photoplethysmography sensors are demonstrated based on the fabricated flexible wearable *** work provides a newperspective for the low-temperature fabrication of large-area all-inorganic perovskite flexible optoelectronic devices.

关键词： In situ hydrolyzation Low-temperature processing All-inorganic perovskite Flexible photodetectors Health monitoring

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声发射技术在关节外科中的应用及价值

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中国组织工程研究 2025年第15期29卷 3262-3270页

作者：徐祯张梦茹吕柯夏中玉张采薇徐建达南京中医药大学常州附属医院常州市中医医院骨科江苏省常州市213003

背景:声发射技术是无损检测中最可靠和完善的技术之一,被广泛用于机械、土木和水下声学等多个领域的损伤检测。近年来,声发射技术获得较大发展,在医学工程领域得到初步应用,特别是在人体关节的摩擦评估以及植入物监测方面具有优势。目的... 详细信息

背景:声发射技术是无损检测中最可靠和完善的技术之一,被广泛用于机械、土木和水下声学等多个领域的损伤检测。近年来,声发射技术获得较大发展,在医学工程领域得到初步应用,特别是在人体关节的摩擦评估以及植入物监测方面具有优势。目的:总结声发射技术在关节外科中的应用现状、存在问题及未来的发展方向。方法:检索1989年1月至2024年3月PubMed数据库、Web of Science数据库、中国知网、万方数据库发表的相关文献,中文检索词为“声学,髋关节置换术,髋关节假体,假体失效,膝关节骨关节炎,膝关节,监测,人工关节”;英文检索词为“acoustics,hip replacement arthroplasties,hip prosthesis,prosthesis failure,knee osteoarthritides,knee joint,monitoring,artificial joint”。初检得到文章2991篇,根据纳排标准,最终纳入80篇文章进行综述分析。结果与结论:①在关节外科领域中,声发射技术主要用于关节疾病早期的发现与诊断,以及关节置换术中骨裂和术后假体下沉、植入物磨损、无菌性松动、骨裂等的检测;②声发射技术的优势可以弥补传统检测方法的不足,提早发现关节炎,降低术中的损伤风险,监测并减少术后并发症,提高手术安全性和临床效果。

关键词：声发射技术声学髋关节置换髋关节假体假体失效膝关节骨关节炎膝关节监测人工关节

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Catalytic oxidation of toluene by manganese oxides:Effect of K^(+)doping on oxygen vacancy

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Journal of Environmental Sciences 2024年第8期142卷 43-56页

作者： Zhenzhen Huang Haiyang Li Xuejun zhang Yanli Mao Yinghan Wu Wei Liu Hongrun Gao mengru zhang Zhongxian Song Faculty of Environmental and Municipal Engineering Henan Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban ConstructionPingdingshan 467036China College of Environmental and Safety Engineering Shenyang University of Chemical TechnologyShenyang 110142China

Alkali metal potassium was beneficial to the electronic regulation and structural stability of transition metal ***,K ions were introduced into manganese oxides by different methods to improve the degradation efficiency of *** results of activity experiments indicated that KMnO_(4)-HT(HT:Hydrothermal method)exhibited outstanding low-temperature catalytic activity,and 90%conversion of toluene can be achieved at 243℃,which was 41℃and 43℃lower than that of KNO_(3)-HT and Mn-HT,*** largest specific surface area was observed on KMnO_(4)-HT,facilitating the adsorption of *** formation of cryptomelane structure over KMnO_(4)-HT could contribute to higher content of Mn^(3+)and lattice oxygen(Olatt),excellent low-temperature reducibility,and high oxygen mobility,which could increase the catalytic ***,two distinct degradation pathways were ***Ⅰ(KMnO_(4)-HT):toluene→benzyl→benzoic acid→carbonate→CO_(2)and H2O;PathwayⅡ(Mn-HT):toluene→benzyl alcohol→benzoic acid→phenol→maleic anhydride→CO_(2)and *** intermediates were detected on KMnO_(4)-HT,indicating its stronger oxidation capacity of toluene,which was originated from the doping of K^(+)and the interaction between *** intermediates were observed on Mn-HT,which can be attributed to the weaker oxidation ability of pure *** results indicated that the doping of K^(+)can improve the catalytic oxidation capacity of toluene,resulting in promoted degradation of intermediates during the oxidation of toluene.

关键词： Catalytic oxidation Preparation method Cryptomelane Mn^(3+)and lattice oxygen

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Antibacterial evaporator based on reduced graphene oxide/polypyrrole aerogel for solar-driven desalination

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Nano Research 2023年第4期16卷 4219-4224页

作者： mengru zhang Fan Xu Wenjie Liu Yaqi Hou Liyun Su Xin zhang Ruihua zhang Lijun Zhou Xiaomei Yan Miao Wang Xu Hou Yang Cao State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials(iChEM)College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Department of Chemical Biology MOE Key Laboratory of Spectrochemical Analysis&InstrumentationKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China College of Materials Xiamen UniversityXiamen 361005China College of Physical Science and Technology Xiamen UniversityXiamen 361005China Tan Kah Kee Innovation Laboratory Xiamen 361005China Pen-Tung Sah Institute of Micro-Nano Science and Technology Xiamen UniversityXiamen 361005China

Solar-driven water evaporation is a sustainable method to purify ***,traditional volumetric water-evaporation systems suffer from the poor sunlight absorption and inefficient light-to-thermal ***,their anti-bacterial and antifouling performances are crucial for the practical ***,we introduce reduced graphene oxide(RGO)with broadband absorbance across the entire solar spectrum,and polypyrrole(PPy),an antibacterial polymer with efficient solar absorption and low thermal conductivity,to develop integrated RGO/PPy aerogel as both the solar absorber and evaporator for highly efficient solar-driven steam *** a result,the RGO/PPy aerogel shows strong absorption and good photothermal performance,leading to an evaporation rate of 1.44 kg·m^(−2)·h^(−1)and high salt rejection(up to 99.99%)for real seawater,with photothermal conversion efficiency>90%under one sun *** result is attributed to the localized heat at the air-water interface by the RGO/PPy and its porous nature with functional groups that facilitates the water ***,the RGO/PPy demonstrates excellent durability and antibacterial efficiency close to 100%for 12 h,crucial characteristics for longterm *** well-designed RGO/PPy aerogel with efficient water desalination performance and antibacterial property provides a straightforward approach to improve the solar-driven evaporation performance by multifunctional materials integration,and offers a viable route towards practical seawater desalination.

关键词： solar-driven steam generation interfacial heating antibacterial property graphene-based material polypyrrole

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Fast extraction of winter wheat planting area in Huang-Huai-Hai Plain using high-resolution satellite imagery on a cloud computing platform

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International Journal of Agricultural and Biological Engineering 2022年第1期15卷 241-250页

作者： Dongyan zhang mengru zhang Fenfang Lin Zhenggao Pan Fei Jiang Liang He Hang Yang Ning Jin National Engineering Research Center for Agro-Ecological Big Data Analysis&Application Anhui UniversityHefei 230601China Key Laboratory of Geospatial Technology for Middle and Lower Yellow River Regions(Henan University) Ministry of EducationKaifeng 475004HenanChina School of Informatics and Engineering Suzhou UniversitySuzhou 234000AnhuiChina National Meteorological Center Beijing 100081China Aerospace Information Research Institute Chinese Academy of ScienceBeijing 100101China

To extract regional winter wheat planting area using higher-resolution satellite imagery still faces many challenges due to large data size and long processing time in traditional remote sensing *** Earth Engine(GEE),a cloud computing analysis platform based on global geospatial analysis,provides a new opportunity for rapid analysis of remote sensing *** this study,high-quality Landsat-8 imagery was used to extract the winter wheat planting area from the Huang-Huai-Hai Plain in *** random forest algorithm was used to identify and map the winter wheat sown in 2019 and harvested in 2020,and Sentinel-2 imagery was used to verify the *** spectral indices,texture,and terrain features of the image were derived,and their contribution to the classification accuracy of winter wheat was evaluated by *** the top nine features were selected to form an optimal feature *** the set of thirty-four features and the optimized feature subset as the input variables of the random forest classifier,the results show that the accuracy difference between the two feature classification schemes is small,but the classification effect of all feature sets is slightly better than the optimal feature *** overall classification accuracy of sample plots verification was 86%-95%,the Kappa coefficient was between 0.7 and 0.85,and the percentage error of the total area was 5.42%.The research demonstrates a reliable method for mapping a wide range of winter wheat planting area,and provides a good prospect for exploring the precise mapping of other crops,which is of great significance to crop monitoring and agricultural development.

关键词： Google Earth Engine regional scale winter wheat rapid mapping

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A mutation in CsKTN1 for the Katanin p60 protein results in miniature plant in cucumber,Cucumis sativus L.

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Vegetable Research 2022年第1期2卷 23-31页

作者： MengFei Song WenYuan Fu YuHui Wang Feng Cheng mengru zhang JinFeng Chen QunFeng Lou State Key Laboratory of Crop Genetics and Germplasm Enhancement College of HorticultureNanjing Agricultural UniversityNanjing 210095China

Katanin,a microtubule shearing protein,plays an important role in plant architecture ***,little is known about its mechanisms in regulating plant architecture in *** the present study,through EMS mutagenesis,we identified a novel micro-plant(mp)mutant in the North China type inbred line CCMC that may be of value for cucumber *** size and number of stem cells were altered in the mp *** bulked segregant analysis(BSA)sequencing approach combined with genetic mapping,the mp locus was delimited to an interval of *** lines of evidence suggested that the mp mutation is due to a single nucleotide polymorphism in Csa7G435510 that is predicted to encode the Katanin p60 subunit protein(CsKTN1).The expression levels of CsKTN1 decreased significantly in all tissues except the tendril of mp *** localization showed that both wild-type and mutant CsKTN1 proteins were located in cell membrane,cytoplasm and nucleus of tobacco leaf *** mutant protein lost part of its ability to bind and shear microtubule in *** findings provide new insight into the regulatory function of microtubule-shearing protein,Katanin p60,in plant architecture of cucumber.

关键词： formation plant shearing

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Homogeneous permeation and oriented crystallization in nanostructured mesopores for efficient and stable printable mesoscopic perovskite solar cells

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Science China Chemistry 2024年第11期67卷 3688-3696页

作者： Guodong zhang Yanjie Cheng Tingting Niu Ziwei Zheng Zongwei Li Junwei Xiang Qiaojiao Gao Minghao Xia Lijuan Guo Yiming Liu mengru zhang Yiran Tao Xueqin Ran Mingjie Li Guichuan Xing Yingdong Xia Lingfeng Chao Anyi Mei Hongwei Han Yonghua Chen Key Laboratory of Flexible Electronics(KLoFE)and Institute of Advanced Materials(IAM) School of Flexible Electronics(Future Technologies)Nanjing Tech UniversityNanjing 211816China Michael Grätzel Center for Mesoscopic Solar Cells Wuhan National Laboratory for OptoelectronicsKey Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of EducationHuazhong University of Science and TechnologyWuhan 430074China Department of Physics The Chinese University of Hong KongNew TerritoriesHong Kong SAR 999077China Department of Applied Physics The Hong Kong Polytechnic UniversityKowloon 999077China Shenzhen Research Institute The Hong Kong Polytechnic UniversityShenzhen 518057China Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoAvenida da UniversidadeTaipa 999078China

The low-cost and scalable printable mesoporous perovskite solar cells(p-MPSCs) face significant challenges in regulating perovskite crystal growth due to their nanoscale mesoporous scaffold structure, which limits the improvement of device power conversion efficiency(PCE). In particular, the most commonly used solvents, N,N-dimethylformamide(DMF) and dimethyl sulfoxide(DMSO), have a single chemical interaction with the precursor components and high volatility, which is insufficient to self-regulate the perovskite crystallization process, leading to explosive nucleation and limited growth within mesoporous scaffolds. Here, we report a mixed solvent system composed of methylamine formaldehyde(MAFa)-based ionic liquid and acetonitrile(ACN) with the strong C=O–Pb coordination and N–H···I hydrogen bonding with perovskite components. We found that the mixed solvent system is beneficial for the precursor solution to homogeneously penetrate into the mesoporous scaffold,and the strong C=O–Pb coordination and N–H···I hydrogen bonding interaction can promote the oriented growth of perovskite crystals. This synergistic effect increased the PCE of the p-MPSCs from 17.50% to 19.21%, which is one of the highest records for p-MPSC in recent years. Additionally, the devices exhibit positive environmental stability, retaining over 90% of the original PCE after 1,200 h of aging under AM 1.5 illumination conditions at 55 ℃ and 55% humidity.

关键词： printable mesoscopic perovskite solar cells ionic liquid crytallization control hight efficiency and stability

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Several Addition Reactions of Cyclopropenes

Several Addition Reactions of Cyclopropenes

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中国化学会第十六届全国光化学学术讨论会（2019）

作者： Zhanyu Li mengru zhang Jinbo Zhao Qian zhang Department of Chemistry Northeast Normal University

＜正＞Cyclopropene is a kind of minimal unsaturated carbon ring with large ring-strain but stable existence. The high reactivity originated from ring-strain releasing has long attracted the attention of synthetic chem...

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Advances in Research of Components,Pharmacological Activity and Clinical Application of Vicatia thibetica de Boiss

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Medicinal Plant 2022年第6期13卷 99-104页

作者： mengru zhang Jianli ZHAO Bowen ZHENG Qingwei YAN Xu JI Gengsang Fangyun SUN Engineering Research Center of Tibetan Medicine Detection Technology Ministry of EducationXizang Minzu UniversityXianyang 712082China School of Physical Education Xizang Minzu UniversityXianyang 712082 University of Tibetan Medicine Lhasa 850007China

Vicatia thibetica de Boiss is a Tibetan medicinal herb and mainly contains chemical components such as flavonoids,β-sitosterol and ferulic *** has good pharmacological effects such as anti-inflammatory,analgesic,anti-fatigue,anti-oxidation,anti-aging and enhancing *** on relevant domestic and foreign literature,this paper comprehensively reviews the main components,pharmacological activity and clinical prescription application of *** de Boiss,to provide a reference for the in-depth research and comprehensive development and utilization of *** de Boiss.

关键词： Vicatia thibetica de Boiss Chemical components Pharmacological activity Jiawa Research advances

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外源添加亮氨酸提高乳酸乳球菌酸胁迫抗性

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食品与生物技术学报 2015年第2期34卷 134-139页

作者：张梦汝张娟堵国成陈坚江南大学工业生物技术教育部重点实验室江苏无锡214122 江南大学生物工程学院江苏无锡214122 江南大学糖化学与生物技术教育部重点实验室江苏无锡214122 江南大学粮食发酵工艺与技术国家工程实验室江苏无锡214122

在乳酸乳球菌生长过程中外源添加浓度为10mmol/L的亮氨酸,可有效提高乳酸乳球菌在酸胁迫环境下的酸耐受性。在酸性环境中(pH5.0),添加亮氨酸的菌株的生物量为对照菌株的1.24倍;经过酸胁迫(pH4.0)5h后,添加亮氨酸菌株的存活率是对照菌株... 详细信息

在乳酸乳球菌生长过程中外源添加浓度为10mmol/L的亮氨酸,可有效提高乳酸乳球菌在酸胁迫环境下的酸耐受性。在酸性环境中(pH5.0),添加亮氨酸的菌株的生物量为对照菌株的1.24倍;经过酸胁迫(pH4.0)5h后,添加亮氨酸菌株的存活率是对照菌株的28.5倍。进一步的研究表明,亮氨酸的添加可提高胞内NH4+浓度,有效的维持酸胁迫环境下胞内pH(pHin)的稳定,并有效维持乳酸脱氢酶(LDH)的活性,从而有效提高了乳酸乳球菌对酸胁迫的抵御能力。

关键词：乳酸菌亮氨酸酸胁迫酸胁迫抗性

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