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MXene Hybridized Polymer with Enhanced Electromagnetic Energy Harvest for Sensitized Microwave Actuation and Self‑Powered Motion Sensing

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Nano-Micro Letters 2025年第3期17卷 265-279页

作者： yu‑Ze Wang yu‑Chang Wang ting‑ting Liu Quan‑Liang Zhao Chen‑Sha Li Mao‑Sheng Cao School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081People’s Republic of China School of Materials Science and Engineering Peking UniversityBeijing 100871People’s Republic of China School of Mechanical and Material Engineering North China University of TechnologyBeijing 100144People’s Republic of China Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People’s Republic of ChinaHeilongjiang UniversityHarbin 150080People’s Republic of China

Polymeric microwave actuators combining tissue-like softness with programmablemicrowave-responsive deformation hold great promise for mobile intelligentdevices and bionic soft robots. However, their application is challenged by restricted electromagneticsensitivity and intricate sensing coupling. In this study, a sensitized polymericmicrowave actuator is fabricated by hybridizing a liquid crystal polymer with Ti3C2Tx(MXene). Compared to the initial counterpart, the hybrid polymer exhibits unique spacechargepolarization and interfacial polarization, resulting in significant improvements of230% in the dielectric loss factor and 830% in the apparent efficiency of electromagneticenergy harvest. The sensitized microwave actuation demonstrates as the shortenedresponse time of nearly 10 s, which is merely 13% of that for the initial shape memory polymer. Moreover, the ultra-low content of MXene (upto 0.15 wt%) benefits for maintaining the actuation potential of the hybrid polymer. An innovative self-powered sensing prototype that combinesdriving and piezoelectric polymers is developed, which generates real-time electric potential feedback (open-circuit potential of ~ 3 mV) duringactuation. The polarization-dominant energy conversion mechanism observed in the MXene-polymer hybrid structure furnishes a new approachfor developing efficient electromagnetic dissipative structures and shows potential for advancing polymeric electromagnetic intelligent devices.

关键词： Microwave absorption Electromagnetic response Energy harvest Self-sensing Soft actuator

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A Review of Root Lesion Nematode: Identification and Plant Resistance

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Advances in Microbiology 2012年第4期2卷 411-416页

作者： yong-ting yu Hui-Ling Liu Ai-Guo Zhu Gang Zhang Liang-Bin Zeng Shao-Dong Xue College of Graduate Chinese Academy of Agricultural Sciences Peking China College of Pharmacy Shaanxi University of Chinese Medicine Xianyang China Institute of Bast Fiber Crops Chinese Academy of Agricultural Sciences Changsha China

Root lesion nematode, one of the three most devastated plant parasitic nematodes, is widespread in the world. They can invade various food and cash crops, and cause great agriculture loss. Recognition and identification of root lesion nematode are important joint of nematode management, as well as the mechanism research of plant anti-nematode, which is of great benefit to breed resistance varieties. In this review, the recent advances in nematode identification and research of plant anti-nematode are presented, and the importance of non-inaccuracy identification of nematode was emphasized. The mechanism of resistance to root lesion nematode was also discussed.

关键词： Pratylenchus Isoenzyme ITS Resistance Related Protein Secondary Metabolite

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Bioinspired Ultrasensitive Flexible Strain Sensors for Real‑Time Wireless Detection of Liquid Leakage

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Nano-Micro Letters 2025年第3期17卷 310-327页

作者： Weilong Zhou yu Du Yingying Chen Congyuan Zhang Xiaowei Ning Heng Xie ting Wu Jinlian Hu Jinping Qu Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China School of Materials Science and Engineering Wuhan Institute of TechnologyWuhan 430205People’s Republic of China Department of Biomedical Engineering City University of Hong KongHong KongSAR 999077People’s Republic of China

Liquid leakage of pipeline networks not only results in considerableresource wastage but also leads to environmental pollution and ecological *** response to this global issue, a bioinspired superhydrophobic thermoplastic polyurethane/carbon nanotubes/graphene nanosheets flexible strain sensor (TCGS) hasbeen developed using a combination of micro-extrusion compression molding andsurface modification for real-time wireless detection of liquid leakage. The TCGSutilizes the synergistic effects of Archimedean spiral crack arrays and micropores,which are inspired by the remarkable sensory capabilities of scorpions. This designachieves a sensitivity of 218.13 at a strain of 2%, which is an increase of 4300%. Additionally, it demonstrates exceptional durability bywithstanding over 5000 usage cycles. The robust superhydrophobicity of the TCGS significantly enhances sensitivity and stability indetecting small-scale liquid leakage, enabling precise monitoring of liquid leakage across a wide range of sizes, velocities, and compositionswhile issuing prompt alerts. This provides critical early warnings for both industrial pipelines and potential liquid leakage scenariosin everyday life. The development and utilization of bioinspired ultrasensitive flexible strain sensors offer an innovative and effectivesolution for the early wireless detection of liquid leakage.

关键词： Thermoplastic polyurethane Bioinspired Cracks Liquid leakage Flexible strain sensor

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Direct Photolithography of WO_(x)Nanoparticles for High‑Resolution Non‑Emissive Displays

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Nano-Micro Letters 2025年第3期17卷 297-309页

作者： Chang Gu Guojian Yang Wenxuan Wang Aiyan Shi Wenjuan Fang Lei Qian Xiaofei Hu ting Zhang Chaoyu Xiang yu‑Mo Zhang Laboratory of Optoelectronic Information Technology and Devices Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201People’s Republic of China Hangzhou Bay Laboratory of Advanced Nano‑Optoelectronic Materials and Devices Qianwan Institute of CNITECHNingbo 315336People’s Republic of China Smart Materials for Architecture Research Lab Innovation Center of Yangtze River DeltaZhejiang UniversityJiaxing 314100People’s Republic of China University of Science and Technology of China Hefei 230026People’s Republic of China State Key Lab of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012People’s Republic of China

High-resolution non-emissive displays based on electrochromic tungsten oxides(WOx)are crucial for future near-eye virtual/augmented reality interactions,given their impressive attributes such as high environmental stability,ideal outdoor readability,and low energy ***,the limited intrinsic structure of inorganic materials has presented a significant challenge in achieving precise patterning/pixelation at the micron ***,we successfully developed the direct photolithography for WOx nanoparticles based on in situ photo-induced ligand *** strategy enabled us to achieve ultra-high resolution efficiently(line widthting device exhibited impressive electrochromic performance,such as fast response(3600 cycles),as well as promising applications in electronic logos,pixelated displays,flexible electronics,*** success and advancements presented here are expected to inspire and accelerate research and development(R&D)in high-resolution non-emissive displays and other ultra-fine micro-electronics.

关键词： Electrochromic Direct photolithography WOx nanoparticles In situ photo-induced ligand exchange High-resolution displays

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Stability and Stabilization of Sampled-Data Based LFC for Power Systems:A Data-Driven Method

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IEEE/CAA Journal of Automatica Sinica 2025年第1期 291-293页

作者： yu-Long Fan Chuan-Ke Zhang yong He the School of Automation China University of Geosciences the Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems the Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education IEEE

Dear Editor,This letter is concerned with stability analysis and stabilization design for sampled-data based load frequency control(LFC) systems via a data-driven method. By describing the dynamic behavior of LFC systems based on a data-based representation, a stability criterion is derived to obtain the admissible maximum sampling interval(MSI) for a given controller and a design condition of the PI-type controller is further developed to meet the required MSI. Finally, the effectiveness of the proposed methods is verified by a case study.

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miRNA-21-5p is an important contributor to the promotion of injured peripheral nerve regeneration using hypoxia-pretreated bone marrow-derived neural crest cells

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Neural Regeneration Research 2025年第1期20卷 277-290页

作者： Meng Cong Jing-Jing Hu Yan yu Xiao-Li Li Xiao-ting Sun Li-ting Wang Xia Wu Ling-Jie Zhu Xiao-Jia Yang Qian-Ru He Fei Ding Hai-Yan Shi School of Medicine Nantong UniversityNantongJiangsu ProvinceChina Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education and Coinnovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Physiology Jiangsu Health Vocational CollegeNanjingJiangsu ProvinceChina Department of Pathology Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina

Our previous study found that rat bone marrow–derived neural crest cells(acting as Schwann cell progenitors)have the potential to promote long-distance nerve ***-based therapy can enhance peripheral nerve repair and regeneration through paracrine bioactive factors and intercellular ***,the complex contributions of various types of soluble cytokines and extracellular vesicle cargos to the secretome remain *** investigate the role of the secretome and extracellular vesicles in repairing damaged peripheral nerves,we collected conditioned culture medium from hypoxia-pretreated neural crest cells,and found that it significantly promoted the repair of sensory neurons damaged by oxygen-glucose *** mRNA expression of trophic factors was highly expressed in hypoxia-pretreated neural crest *** performed RNA sequencing and bioinformatics analysis and found that miR-21-5p was enriched in hypoxia-pretreated extracellular vesicles of neural crest ***,to further clarify the role of hypoxia-pretreated neural crest cell extracellular vesicles rich in miR-21-5p in axonal growth and regeneration of sensory neurons,we used a microfluidic axonal dissociation model of sensory neurons in vitro,and found that hypoxia-pretreated neural crest cell extracellular vesicles promoted axonal growth and regeneration of sensory neurons,which was greatly dependent on loaded ***,we constructed a miR-21-5p-loaded neural conduit to repair the sciatic nerve defect in rats and found that the motor and sensory functions of injured rat hind limb,as well as muscle tissue morphology of the hind limbs,were obviously *** findings suggest that hypoxia-pretreated neural crest extracellular vesicles are natural nanoparticles rich in ***-21-5p is one of the main contributors to promoting nerve regeneration by the neural crest cell *** helps to explain the mechanism of action of the secretome and e

关键词： axotomy cell-free therapy conditioned medium extracellular vesicles hypoxic preconditioning microRNA oxygen-glucose deprivation peripheral nerve injury Schwann cell precursors

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Prevention and treatment of hepatic artery thrombosis after liver transplantation

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Hepatobiliary & Pancreatic Diseases International 2004年第1期3卷 21-25页

作者： Shu-Sen Zheng, Zhi-yong yu, ting-Bo Liang, Wei-Lin Wang, Yan Shen, Min Zhang, Xiao Xu and Jian Wu Hangzhou, China Centre of Organ Transplantation and Department o Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital of Medica College, Zhcjiang University, Hangzhou 310003, China Centre of Organ Transplantation and Department of Hepatobiliary and Pancreatic Surgery First Affiliated Hospital of Medical College Zhejiang University Hangzhou 310003 China.

BACKGROUND: Hepatic artery thrombosis (HAT) which is a serious complication after orthotopic liver transplanta- tion (OLT) remains a significant cause of graft loss. The purpose of this study was to sum up our experiences in the prevention, diagnosis and management of HAT after liver transplantation. METHODS: From April 1993 to September 2003, a total of 198 patients underwent OLT at our hospital. The hepatic artery was anastomosed using 7/0 prolane with running continuous suture in 96 patients (group 1) and with inter- rupted suture in 102 (group 2). Ultrasonography was per- formed every day in two weeks after operation and selec- tively afterwards. RESULTS: HAT occurred in 6 patients (6.3%, 6/96) of group 1, and in 1 (1%, 1/102) of group 2 (x2=4.027, P= 0.045). Six patients received emergency thrombectomy, and 1 conservative therapy but died from tumor recurrence eventually. Biliary complication developed in 3 patients af- ter thrombectomy of whom 2 died of liver failure and one waited for retransplantation. In the other 3 patients after thrombectomy, 1 died of renal failure, and 2 survived. The mortality of patients with HAT was 57.1% (4/7). CONCLUSIONS: The technique of hepatic arterial anasto- mosis is the key factor for the prevention of HAT. Routine ultrasonography is very important in early detection of HAT after OLT. Biliary complication is a severe outcome secondary to HAT.

关键词： liver transplantation hepatic artery thrombosis vascular complication ultrasonography

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Cohort study on the treatment of BRAF V600E mutant metastatic colorectal cancer with integrated Chinese and western medicine

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World Journal of Clinical Oncology 2025年第1期16卷 25-33页

作者： Jiang-yu Bian yu-Fang Feng Wen-ting He Tong Zhang Department of Oncology Xiyuan Hospital of China Academy of Chinese Medical SciencesBeijing 100091China Department of Oncology The Fourth Clinical Medical College of Xinjiang Medical UniversityUrumqi 830001China Department of Oncology Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical UniversityUrumqi 830001China

BACKGROUND Patients with BRAF V600E mutant metastatic colorectal cancer(mCRC)have a low incidence rate,poor biological activity,suboptimal response to conventional treatments,and a poor *** the previous cohort study on mCRC conducted by our team,it was observed that integrated Chinese and Western medicine treatment could significantly prolong the overall survival(OS)of patients with colorectal ***,we further explored the survival benefits in the population with BRAF V600E mutant *** To evaluate the efficacy of integrated Chinese and Western medicine in the treatment of BRAF V600E mutant metastatic colorectal *** A cohort study was conducted on patients with BRAF V600E mutant metastatic colorectal cancer admitted to Xiyuan Hospital of China Academy of Chinese Medical Sciences and Traditional Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region from January 2016 to December *** patients were divided into two *** A total of 34 cases were included,with 23 in Chinese-Western medicine cohort(cohort A)and 11 in Western medicine cohort(cohort B).The median overall survival was 19.9 months in cohort A and 14.2 months in cohort B,with a statistically significant difference(P=0.038,hazard ratio=0.46).The 1-3-year survival rates were 95.65%(22/23),39.13%(9/23),and 26.09%(6/23)in cohort A,and 63.64%(7/11),18.18%(2/11),and 9.09%(1/11)in cohort B,*** analysis showed statistically significant differences in median OS between the two cohorts in the right colon,liver metastasis,chemotherapy,and first-line treatment subgroups(P<0.05).CONCLUSION Integrated Chinese and Western medicine can prolong the survival and reduce the risk of death in patients with BRAF V600E mutant metastatic colorectal cancer,with more pronounced benefits observed in patients with right colon involvement,liver metastasis,combined chemotherapy,and first-line treatment.

关键词： Metastatic colorectal cancer BRAF V600E mutation Integrated Chinese and Western medicine Cohort study

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UPLC-MS/MS法分析10种不同蜜源蜂蜜中的黄酮类组分

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药物分析杂志 2016年第12期36卷 2180-2189页

作者：王笑笑周勇俞婷婷颜伟华吴永江衢州市食品药品检验研究院衢州324002 浙江大学药学院杭州310058 浙江中医药大学附属第三医院杭州310005

目的:建立超高效液相色谱质谱分析方法,比较不同蜜源蜂蜜中黄酮类组分的区别。方法:不同蜜源蜂蜜经D_(101)型大孔吸附树脂提取纯化后采用UPLC-MS/MS进行分析。色谱柱采用Inertsil ODS-3柱(2.1 mm×75 mm,2μm),以甲醇-0.02%甲酸水溶液... 详细信息

目的:建立超高效液相色谱质谱分析方法,比较不同蜜源蜂蜜中黄酮类组分的区别。方法:不同蜜源蜂蜜经D_(101)型大孔吸附树脂提取纯化后采用UPLC-MS/MS进行分析。色谱柱采用Inertsil ODS-3柱(2.1 mm×75 mm,2μm),以甲醇-0.02%甲酸水溶液为流动相梯度洗脱,流速0.4 m L·min^(-1),柱温40℃;以儿茶素、表儿茶素、芦丁、芸香柚皮苷、桑黄素、杨梅素、山柰酚、生松素等16个黄酮类对照品作为对照,采用电喷雾离子源(ESI),多反应监测(MRM)进行分析。结果:儿茶素、表儿茶素、芸香柚皮苷、芦丁、桑黄素、杨梅素、柚皮素、槲皮素、染料木素、木犀草素、山柰酚、芹菜素、生松素、汉黄芩素、白杨素和高良姜素的质量浓度分别在0.835~83.5μg·m L^(-1)(r=0.998 5)、0.562~22.48μg·m L^(-1)(r=0.999 0)、0.095 2~4.76μg·m L^(-1)(r=0.995 5)、0.052 2~1.307μg·m L^(-1)(r=0.998 0)、1.608~40.2μg·m L^(-1)(r=0.997 0)、0.45~9.0μg·m L^(-1)(r=0.998 5)、0.006 9~0.69μg·m L^(-1)(r=0.999 5)、0.022 5~4.498μg·m L^(-1)(r=0.999 5)、0.040 6~4.055μg·m L^(-1)(r=0.999 5)、0.073 3~3.665μg·m L^(-1)(r=0.999 5)、3.26~32.6μg·m L^(-1)(r=0.996 5)、0.021 4~1.072μg·m L^(-1)(r=0.999 0)、0.047 2~1.18μg·m L^(-1)(r=0.998 5)、0.001 4~0.353μg·m L^(-1)(r=0.999 5)、0.058~2.925μg·m L^(-1)(r=0.999 5)、0.222 4~11.12μg·m L^(-1)(r=0.997 5)范围内与峰面积呈良好的线性关系,提取回收率分别为2.7%、3.8%、0.26%、0.00%、70.6%、59.3%、83.0%、87.8%、83.4%、81.1%、93.3%、89.9%、86.1%、95.9%、89.8和93.3%,基质效应(n=5)在94.29%~115.72%之间,18 h内基本稳定,其中杨梅素6 h内稳定(RSD=2.3%)。不同蜜源蜂蜜之间黄酮类组分及其含量有一定程度的差异。如洋槐蜜中槲皮素、白杨素、生松素和山柰酚为主,木犀草素、染料木素、汉黄芩素等为辅;柑橘蜜中以槲皮素、山柰酚、高良姜素和汉黄芩素为主,木犀草素和芹菜素为辅;油菜蜜中以山柰酚和槲皮素为主,白杨素、生松素、柚皮素、染料木素、木犀草素和汉黄芩素等为辅等。某些化合物有可能成为蜂蜜中的潜在标志组分,如洋槐蜜中的染料木素及柑橘蜜中的汉黄芩素,与其他蜜源蜂蜜中的组分含量相比,具有含量占比高或蜂蜜和蜜源花中均有等特点。结论:该方法选择性强,灵敏度高,所得结果准确可靠,同时有助于单花蜜蜜源来源的鉴定。

关键词：蜂蜜蜜源洋槐蜜柑橘蜜油菜花蜜黄酮类化合物桑黄素杨梅素柚皮素槲皮素染料木素木犀草素山柰酚芹菜素生松素汉黄芩素白杨素高良姜素超高效液相串联质谱

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Multivariate synergy for heightening ionic HOF robustness and proton conductivity

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Science China Chemistry 2025年

作者： Xiang-Tian Bai Li-Hui Cao Xu-yong Chen Jia-yu Wang Zi-Ye Zhou Shaanxi Key Laboratory of Chemical Additives for Industry College of Chemistry and Chemical EngineeringShaanxi University of Science and Technology

Multicomponent crystalline materials construct more complex and diversified structures with different combinations and modes,which expands the material structure space and application *** this work,we have successfully synthesized two twocomponent ionic hydrogen-bonded organic frameworks （iHOF-32 and iHOF-33） and a three-component iHOF （iHOF-34）.Guanidine hydrochloride which is rich in N and H and has a short chain length strengthens the hydrogen bonding network of iHOF,thereby aiding in the efficient migration of *** rigid architecture of 1,1'-diamino-4,4'-bipyridine diiodide furnishes additional scaffolding for the iHOFs and enhances its robustness under harsh ***-34 accomplishes the combination of the ultra-high proton conductivity of iHOF-32 and the robustness of iHOF-33 by the synergistic interaction among the three components of *** addition,iHOF-34 was fabricated as a composite membrane with a peak proton conductivity of 1.55×10-1S cm-1,which is 3.8 times higher than that of recast Nafion,and has extensive potential in fuel *** self-assembly strategy of multicomponent HOFs opens up new avenues for constructing diverse structures while promising new opportunities for applications in the fields of proton conduction and energy storage.

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