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Untethered Micro/Nanorobots for Remote Sensing:Toward Intelligent Platform

Nano-Micro Letters 2024年第2期16卷 450-483页

作者： qianqian wang Shihao Yang Li Zhang Jiangsu Key Laboratory for Design and Manufacture of Micro‑Nano Biomedical Instruments School of Mechanical EngineeringSoutheast UniversityNanjing 211189People’s Republic of China Department of Mechanical and Automation Engineering The Chinese University of Hong KongShatinHong Kong 999077People’s Republic of China Chow Yuk Ho Technology Centre for Innovative Medicine The Chinese University of Hong KongShatinHong Kong 999077People’s Republic of China T Stone Robotics Institute The Chinese University of Hong KongShatinHong Kong 999077People’s Republic of China Department of Surgery The Chinese University of Hong KongShatinHong Kong 999077People’s Republic of China

Untethered micro/nanorobots that can wirelessly control their motion and deformation state have gained enormous interest in remote sensing applications due to their unique motion characteristics in various media and diverse *** are developing micro/nanorobots as innovative tools to improve sensing performance and miniaturize sensing systems,enabling in situ detection of substances that traditional sensing methods struggle to *** the past decade of development,significant research progress has been made in designing sensing strategies based on micro/nanorobots,employing various coordinated control and sensing *** review summarizes the latest developments on micro/nanorobots for remote sensing applications by utilizing the self-generated signals of the robots,robot behavior,microrobotic manipulation,and robot-environment *** recent studies and relevant applications in remote sensing,we also discuss the challenges and future perspectives facing micro/nanorobots-based intelligent sensing platforms to achieve sensing in complex environments,translating lab research achievements into widespread real applications.

关键词： Micro/nanorobot Remote sensing Wireless control Self-propulsion Actuation at small scales

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Exploring the potential of olivine-containing copper-nickel slag for carbon dioxide mineralization in cementitious materials

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International Journal of Minerals,Metallurgy and Materials 2024年第3期31卷 562-573页

作者： qianqian wang Zequn Yao Lijie Guo Xiaodong Shen College of Materials Science and Engineering Nanjing Tech UniversityNanjing 211816China State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing 211816China BGRIMM Technology Group Beijing 100160China

Water-quenched copper-nickel metallurgical slag enriched with olivine minerals exhibits promising potential for the production of CO_(2)-mineralized cementitious *** this work,copper-nickel slag-based cementitious material(CNCM)was synthesized by using different chemical activation methods to enhance its hydration reactivity and CO_(2) mineralization *** water curing ages and carbonation conditions were explored related to their carbonation and mechanical properties ***,thermogravimetry differential scanning calorimetry and X-ray diffraction methods were applied to evaluate the CO_(2) adsorption amount and carbonation products of *** development of carbonated CNCM blocks was examined by backscattered electron imaging(BSE)with energy-dispersive X-ray *** showed that among the studied samples,the CNCM sample that was subjected to water curing for 3 d exhibited the highest CO_(2) sequestration amount of 8.51wt%at 80℃and 72 h while presenting the compressive strength of 39.07 *** result indicated that 1 t of this CNCM can sequester 85.1 kg of CO_(2) and exhibit high compressive *** the addition of citric acid did not improve strength development,it was beneficial to increase the CO_(2) diffusion and adsorption amount under the same carbonation conditions from BSE *** work provides guidance for synthesizing CO_(2)-mineralized cementitious materials using large amounts of metallurgical slags containing olivine minerals.

关键词： copper-nickel slag fayalite CO_(2)sequestration cementitious material admixtures carbonation conditions

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Effects of Nitrogen Doping on Microstructures and Irradiation Resistance of Ti-Zr-Nb-V-Mo Refractory High-Entropy Alloy

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Acta Metallurgica Sinica(English Letters) 2024年第6期37卷 1007-1018页

作者： Huanzhi Zhang Tianxin Li qianqian wang Zhenbo Zhu Hefei Huang Yiping Lu Engineering Research Center of High Entropy Alloy Materials(Liaoning Province) School of Materials Science and EngineeringDalian University of TechnologyDalian116024China Shanghai Institute of Applied Physics Chinese Academy of Sciences(CAS)Shanghai201800China

Interstitial strengthening with nitrogen(N)is one of the effective ways to improve the mechanical properties of HEAs,but the effects of N on the microstructures and mechanical properties of the irradiated HEAs have not been studied ***,the microstructures and mechanical properties of N-free and N-doped Ti_(2)ZrNbV_(0.5)Mo_(0.2)HEAs before and after He irradiation were *** results showed that the solid solution strengthening caused by interstitial N improved the yield strength at room temperature and 1023 K without significantly reducing plasticity.N doping significantly promoted the growth,aggregation and wider spatial distribution of He bubbles by enhancing the mobility of He atoms/He-vacancy complexes,with the average size of He bubbles increasing from 10.4 nm in N-free HEA to 31.0 nm in N-doped *** addition,N-doped HEA showed a much higher irradiation hardness increment and hardening fraction than N-free *** to conventional materials doped with N,the introduction of N into Ti_(2)ZrNbV_(0.5)Mo_(0.2)HEA had adverse effects on its resistance to He bubble growth and irradiation *** results of this study indicated that N doping may not improve the irradiation resistance of HEAs.

关键词： High-entropy alloys Nitrogen doping Mechanical properties Helium bubbles Irradiation resistance

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Rumen metagenome reveals the mechanism of mitigation methane emissions by unsaturated fatty acid while maintaining the performance of dairy cows

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Animal Nutrition 2024年第3期18卷 296-308页

作者： Zhantao Yang Yuhui Zheng Siyuan Liu Tian Xie qianqian wang Zhonghan wang Shengli Li Wei wang State Key Laboratory of Animal Nutrition and Feeding Beijing Engineering Technology Research Center of Raw Milk Quality and Safety ControlCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China

Dietary fat content can reduce the methane production of dairy cows;however,the relevance fatty acid(FA)composition has towards this inhibitory effect is ***,in-depth studies elucidating the effects of unsaturated fatty acids(UFA)on rumen function and the mechanism of reducing methane(CH4)production are *** study exposed 10 Holstein cows with the same parity,similar milk yield to two total mixed rations:low unsaturated FA(LUFA)and high unsaturated FA(HUFA)with similar fat *** LUFA group mainly added fat powder(C16:0>90%),and the HUFA group mainly replaced fat powder with extruded *** experiment lasted 26 d,the last 5 d of which,gas exchange in respiratory chambers was conducted to measure gas *** found that an increase in the UFA in diet did not affect milk production(P>0.05)and could align the profile of milk FAs more closely with modern human nutritional ***,we found that increasing the UFA content in the diet lead to a decrease in the abundance of Methanobrevibacter in the rumen(|linear discriminant analysis[LDA]score|>2 and P 2 and P<0.05),which ultimately decreased CH4 production(P<0.05).Our results illustrated the mechanism involving decreased CH4 production when fed a UFA diet in dairy *** believe that our study provides new evidence to explore CH4 emission reduction measures for dairy cows.

关键词： Methane emission Rumen metagenome Dairy cow Unsaturated fatty acid

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Substitutions of stem-loop subdomains in internal ribosome entry site of Senecavirus A:Impacts on rescue of sequence-modifying viruses

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Journal of Integrative Agriculture 2024年第7期23卷 2391-2406页

作者： qianqian wang Jie wang Lei Zhang Xiaoxiao Duan Lijie Zhu Youming Zhang Yan Li Fuxiao Liu College of Veterinary Medicine Qingdao Agricultural UniversityQingdao 266109China College of Veterinary Medicine Inner Mongolia Agricultural UniversityHuhhot 010018China Shandong New Hope Liuhe Group Co. Ltd.Qingdao 266100China Qingdao Center for Animal Disease Control&Prevention Qingdao 266199China State Key Laboratory of Microbial Technology Shandong UniversityQingdao 266237China

Senecavirus A(SVA)has a positive-sense,single-stranded RNA *** 5´untranslated region harbors an internal ribosome entry site(IRES),comprising 10 larger or smaller stem-loop structures(including a pseudoknot)that have been demonstrated to be well ***,it is still unclear whether each stem-loop subdomain,such as a single stem or loop,is also highly *** clarify this issue in the present study,a set of 29 SVA cDNA clones were constructed by site-directed mutagenesis(SDM)on the *** SDM-modified scenarios included:(1)stem-formed complementary sequences exchanging with each other;(2)loop transversion;(3)loop transition;and(4)point *** cDNA clones were separately transfected into cells for rescuing viable viruses,whereas only four SVAs of interest could be recovered,and were genetically stable during 20 *** progeny grew significantly slower than the other three *** dual-luciferase reporter assay showed that none of the SDM-modified IRESes significantly inhibited the IRES *** previous study indicated that a single motif from any of the ten stem structures,if completely mutated,would cause the failure of virus ***,our present study revealed three stem structures,whose individual complementary sequences could exchange with each other to rescue sequence-modifying ***,one apical loop was demonstrated to have the ability to tolerate its own full-length transition,also having no impact on the recovery of sequence-modifying *** present study suggested that not every stem-loop structure was strictly conserved in its conformation,while the full-length IRES itself was well *** provides a new research direction on interaction between the IRES and many factors.

关键词： SVA HCV IRES HCV-like IRES stem-loop structure cDNA clone virus rescue mutation

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Abiotic stress treatment reveals expansin like A gene OfEXLA1 improving salt and drought tolerance of Osmanthus fragrans by responding to abscisic acid

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Horticultural Plant Journal 2024年第2期10卷 573-585页

作者： Bin Dong qianqian wang Dan Zhou Yiguang wang Yunfeng Miao Shiwei Zhong Qiu Fang Liyuan Yang Zhen Xiao Hongbo Zhao School of Landscape Architecture Zhejiang Agriculture and Forestry UniversityHangzhouZhejiang 311300China Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants HangzhouZhejiang 311300China Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden Plants HangzhouZhejiang 311300China

Sweet osmanthus(Osmanthus fragrans) is a having general approval aromatic tree in China that is widely applied to landscaping and gardening. However, the evergreen tree adaptability is limited by many environmental stresses. Currently, limited information is available regarding the genetic analysis and functional identification of expansin genes in response to abiotic stress in sweet osmanthus. In this study, a total of 29 expansin genes were identified and divided into four groups by genome-wide analysis from the sweet osmanthus genome. Transcriptome and quantitative Real-time PCR analysis showed that the cell wall-localized protein expansin-like A(OfEXLA1) gene was significantly induced by salt and drought treatment. Histochemical GUS staining of transgenic Arabidopsis lines in which GUS activity was driven with the OfEXLA1 promoter, GUS activity was significantly induced by salt, drought, and exogenous abscisic acid(ABA). In yeast, we found OfEXLA1overexpression significantly improved the population of cells compared with wild-type strains after NaCl and polyethylene glycol(PEG)treatment. Additionally, OfEXLA1 overexpression not only promoted plant growth, but also improved the salt and drought tolerance in Arabidopsis. To gain insight into the role of ABA signaling in the regulation of OfEXLA1 improving abiotic tolerance in sweet osmanthus, four differentially expressed ABA Insensitive 5(ABI5)-like genes(OfABL4, OfABL5, OfABL7, and OfABL8) were identified from transcriptome, and dualluciferase(dual-LUC) and yeast one hybrid(Y1H) assay showed that OfABL4 and OfABL5 might bind to OfEXLA1 promoter to accumulate the OfEXLA1 expression by responding to ABA signaling to improve abiotic tolerance in sweet osmanthus. These results provide the information for understanding the molecular functions of expansin-like A gene and molecular breeding of sweet osmanthus in future.

关键词： Osmanthus fragrans Abiotic tolerance Expansin Abscisic acid

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Stabilizing n-type cubic AgBiSe_(2) thermoelectric materials through alloying with PbS

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Journal of Materiomics 2024年第1期10卷 70-77页

作者： Lai Zhang Weixia Shen Zhuangfei Zhang Chao Fang qianqian wang Biao Wan Liangchao Chen Yuewen Zhang Xiaopeng Jia Key Laboratory of Material Physics of Ministry of Education School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China

Phase transition generates rapid changes of transport parameters and poor mechanical property,and thus restricts the application of thermoelectric ***_(2) exhibits cubic phase at above 580 K with high-symmetry structure and low lattice thermal conductivity,indicating the potentiality of high thermoelectric *** this work,the cubic structure of AgBiSe_(2) was achieved at ambient conditions by alloying with PbS,enhancing the configurational entropy at both cationic and anionic *** cubic structure was rather stable after several measurement *** substitution at cationic sites effectively reduced band gap,and increased both carrier concentration and effective *** samples exhibited relatively low lattice thermal conductivity(0.68-0.34 W/(m·K))in the temperature range of 300-773 K,due to the nanoscale inhomogeneity and the random distribution of multiple species at some atomic sites.A maximum zT of 0.65 at 773 K was obtained for(Ag_(0.99)Nb_(0.01)BiSe_(2))_(0.8)(PbS)_(0.2) *** entropy-driven structural stabilization is a promising strategy to achieve stable structure for practical thermoelectric applications.

关键词： Thermoelectric AgBiSe_(2) Configurational entropy Phase transition

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Strong electron correlation-induced Mott-insulating electrides of Ae_(5)X_(3)(Ae=Ca,Sr,and Ba;X=As and Sb)

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Matter and Radiation at Extremes 2024年第3期9卷 74-82页

作者： Ya Xu Lu Zheng Yunkun Zhang Zhuangfei Zhang qianqian wang Yuewen Zhang Liangchao Chen Chao Fang Biao Wan Huiyang Gou Key Laboratory of Material Physics of Ministry of Education School of Physics and Laboratory of Zhongyuan LightZhengzhou UniversityZhengzhou 450052China School of Mechanical and Equipment Engineering Hebei University of EngineeringHandan 056038China Center for High Pressure Science and Technology Advanced Research Beijing 100094China

The presence of interstitial electrons in electrides endows them with interesting attributes,such as low work function,high carrier concentration,and unique magnetic *** knowledge and understanding of electrides are thus of both scientific and technological ***,we employ first-principles calculations to investigate Mott-insulating Ae_(5)X_(3)(Ae=Ca,Sr,and Ba;X=As and Sb)electrides with Mn_(5)Si_(3)-type structure,in which half-filled interstitial electrons serve as ions and are *** Mott-insulating property is induced by strong electron correlation between the nearest interstitial electrons,resulting in spin splitting and a separation between occupied and unoccupied *** half-filled antiferromagnetic configuration and localization of the interstitial electrons are critical for the Mott-insulating properties of these *** with that in intermetallic electrides,the orbital hybridization between the half-filled interstitial electrons and the surrounding atoms is weak,leading to highly localized magnetic centers and pronounced correlation ***,the Mott-insulating electrides Ae_(5)X_(3)have very large indirect bandgaps(0.30 eV).In addition,high pressure is found to strengthen the strong correlation effects and enlarge the *** present results provide a deeper understanding of the formation mechanism of Mott-insulating electrides and provide guidance for the search for new strongly correlated electrides.

关键词： intermetallic filled occupied

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Delivering Microrobots in the Musculoskeletal System

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Nano-Micro Letters 2024年第11期16卷 585-617页

作者： Mumin Cao Renwang Sheng Yimin Sun Ying Cao Hao wang Ming Zhang Yunmeng Pu Yucheng Gao Yuanwei Zhang Panpan Lu Gaojun Teng qianqian wang Yunfeng Rui Department of Orthopaedics Zhongda HospitalSchool of MedicineSoutheast UniversityNanjingJiangsuPeople’s Republic of China School of Medicine Southeast UniversityNanjing 210009People’s Republic of China Orthopaedic Trauma Institute(OTI) Southeast UniversityNanjing 210009People’s Republic of China Jiangsu Key Laboratory for Design and Manufacture of Micro‑Nano Biomedical Instruments School of Mechanical EngineeringSoutheast UniversityNanjing 210009People’s Republic of China Center of Interventional Radiology and Vascular Surgery Department of RadiologyZhongda HospitalSchool of MedicineSoutheast UniversityNanjing 210009People’s Republic of China

Disorders of the musculoskeletal system are the major contributors to the global burden of disease and current treatments show limited *** often suffer chronic pain and might eventually have to undergo end-stage ***,future treatments should focus on early detection and intervention of regional *** have been gradually used in organisms due to their advantages of intelligent,precise and minimally invasive targeted *** the combination of control and imaging systems,microrobots with good biosafety can be delivered to the desired area for *** the musculoskeletal system,microrobots are mainly utilized to transport stem cells/drugs or to remove hazardous substances from the *** to traditional biomaterial and tissue engineering strategies,active motion improves the efficiency and penetration of local targeting of cells/*** review discusses the frontier applications of microrobotic systems in different tissues of the musculoskeletal *** summarize the challenges and barriers that hinder clinical translation by evaluating the characteristics of different microrobots and finally point out the future direction of microrobots in the musculoskeletal system.

关键词： Microrobot Musculoskeletal system Targeted delivery Microrobotic systems Magnetic actuation

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CARD11 serves as a therapeutic biomarker for the drug therapies of ccRCC

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BIOCELL 2024年第5期48卷 817-834页

作者： KAIWEN TIAN HANZHONG CHEN qianqian wang FENGLIAN JIANG CHUNXIANG FENG TENG LI XIAOYONG PU YANLIN TANG JIUMIN LIU Department of Urology Guangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhou510080China

Background:The incidence of clear cell renal cell carcinoma(ccRCC)is globally high;however,despite the introduction of innovative drug therapies,there remains a lack of effective biomarkers for evaluating treatment ***,Caspase recruiting domain-containing protein 11(CARD11)has garnered attention due to its significant association with tumor development and the immune ***:The expression of CARD11 mRNA and protein in ccRCC were analyzed by public database and *** focus of this study is on the epigenomic modifications of CARD11,its expression of ccRCC immunophenotype,and its correlation with response to immunotherapy and targeted ***,to investigate the mechanism of this molecule’s influence on different biological behaviors of cells,cell tests in vitro have been conducted to observe the impact of its expression ***:CARD11 expression was upregulated which may be mainly modified by body methylation and was correlated with poor prognosis in *** the tumor microenvironment of ccRCC,CARD11 expression was positively correlated with increased T lymphocyte infiltration and increased expression of inhibitory immune ***,ccRCC patients with high CARD11 expression had a better response to immunotherapy and targeted *** knockdown of CARD11 ultimately suppressed the proliferation,migration,and invasion capabilities of ccRCC cells while simultaneously enhancing tumor cell ***:We identified CARD11 as a novel therapeutic biomarker for immunotherapy and targeted therapy in ccRCC.

关键词： Clear cell renal cell carcinoma Tumor microenvironment CARD11 Immune checkpoint inhibitor Tyrosine kinase inhibitor

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