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Force model in electrostatic atomization minimum quantity lubrication milling GH4169 and performance evaluation

Frontiers of Mechanical Engineering 2024年第4期19卷 55-72页

作者： min yang Hao MA Zhonghao LI Jiachao HAO mingzheng LIU Xin CUI Yanbin ZHANG Zongming ZHOU Yunze LONG Changhe LI School of Mechanical and Automotive Engineering Qingdao University of TechnologyQingdao 266520China College of Physics QingdaoUniversityQingdao 266071China Hanergy Lubrication Technology Co. Ltd.Qingdao 266200China

The nickel-based high-temperature alloy GH4169 is the material of choice for manufacturing critical components in aeroengines,and electrostatic atomization minimum quantity lubrication(EMQL)milling represents a fundamental machining process for ***,the effects of electric field parameters,jet parameters,nozzle position,and milling parameters on milling performance remain unclear,which constrains the broad application of EMQL in aerospace *** study evaluated the milling performance of EMQL on nickel-based alloys using soybean oil as the lubrication *** revealed that compared with conventional pneumatic atomization MQL milling,EMQL reduced the milling force by 15.2%-15.9%,lowered the surface roughness by 30.9%-54.2%,decreased the average roughness spacing by 47.4%-58.3%,and decreased the coefficient of friction and the specific energy of cutting by 55%and 19.6%,*** optimization experiments using orthogonal arrays demonstrated that air pressure most significantly affected the milling force and specific energy of cutting,with a contribution rate of 22%,whereas voltage had the greatest effect on workpiece surface roughness,contributing 36.71%.Considering the workpiece surface morphology and the potential impact of droplet drift on environmental and health safety,the optimal parameter combination identified were a flow rate of 80 mL/h,an air pressure of 0.1 MPa,a voltage of 30 kV,a nozzle incidence angle of 35°,an elevation angle of 30°,and a target distance of 40 *** research aimed to provide technical insights for improving the surface integrity of aerospace materials that are difficult to machine during cutting operations.

关键词： electrostatic atomization MQL nickel-based alloys milling force surface roughness force model

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Optimized RNA interference therapeutics combined with interleukin-2 mRNA for treating hepatitis B virus infection

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Signal Transduction and Targeted Therapy 2024年第7期9卷 3063-3076页

作者： Wenjing Zai min yang Kuan Jiang Juan Guan Huijing Wang Kongying Hu Chao Huang Jieliang Chen Wei Fu Changyou Zhan Zhenghong Yuan Key Laboratory of Medical Molecular Virology(MOE/NHC/CAMS) Research Unit of Cure of Chronic Hepatitis B Virus Infection(CAMS)Shanghai Frontiers Science Center of Pathogenic Microbes and InfectionSchool of Basic Medical SciencesShanghai Medical CollegeFudan UniversityShanghaiP.R.China Department of Pharmacology School of Basic Medical SciencesFudan UniversityShanghaiP.R.China Shanghai Engineering Research Center for Synthetic Immunology Fudan UniversityShanghaiP.R.China Eye Institute and Department of Ophthamology Eye and ENT HospitalFudan UniversityShanghaiP.R.China Pharmacy Department of Huashan Hospital Fudan UniversityShanghaiP.R.China Institute of Pediatric Translational Medicine Shanghai Institute for Pediatric Congenital Heart DiseaseShanghai Children’s Medical CenterSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina Shanghai Institute of Infectious Disease and Biosecurity ShanghaiP.R.China

This study aimed to develop a pan-genotypic and multifunctional small interfering RNA(siRNA)against hepatitis B virus(HBV)with an efficient delivery system for treating chronic hepatitis B(CHB),and explore combined RNA interference(RNAi)and immune modulatory modalities for better viral *** synthetic siRNAs targeting consensus motifs distributed across the whole HBV genome were designed and *** lipid nanoparticle(LNP)formulation was optimized by adopting HO-PEG_(2000)-DMG lipid and modifying the molar ratio of traditional polyethylene glycol(PEG)lipid in LNP *** efficacy and safety of this formulation in delivering siHBV(tLNP/siHBV)along with the mouse IL-2(mIL-2)mRNA(tLNP/siHBVIL2)were evaluated in the rAAVHBV1.3 mouse model.A siRNA combination(terms“siHBV”)with a genotypic coverage of 98.55%was selected,chemically modified,and encapsulated within an optimized LNP(tLNP)of high efficacy and security to fabricate a therapeutic formulation for *** results revealed that tLNP/siHBV significantly reduced the expression of viral antigens and DNA(up to 3log_(10)reduction;vs PBS)in dose-and time-dependent manners at single-dose or multi-dose frequencies,with satisfactory safety *** studies showed that tLNP/siHBVIL2 enables additive antigenic and immune control of the virus,via introducing potent HBsAg clearance through RNAi and triggering strong HBV-specific CD4^(+)and CD8^(+)T cell responses by expressed mIL-2 *** adopting tLNP as nucleic acid nanocarriers,the co-delivery of siHBV and mIL-2 mRNA enables synergistic antigenic and immune control of HBV,thus offering a promising translational therapeutic strategy for treating CHB.

关键词： formulation enable offering

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Grindability Evaluation of Ultrasonic Assisted Grinding of Silicon Nitride Ceramic Using minimum Quantity Lubrication Based SiO_(2)Nanofluid

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Chinese Journal of Mechanical Engineering 2024年第2期37卷 115-136页

作者： Yusuf Suleiman Dambatta Changhe Li Mohd Sayuti Ahmed A D Sarhan min yang Benkai Li Anxue Chu mingzheng Liu Yanbin Zhang Zafar Said Zongming Zhou School of Mechanical and Automotive Engineering Qingdao University of TechnologyQingdao 266520China Mechanical Engineering Department Ahmadu Bello UniversityZaria 810106Nigeria Mechanical Engineering Department University of Malaya50603 Kuala LumpurMalaysia Department of Mechanical Engineering King Fahd University of Petroleum&Minerals31261 DhahranSaudi Arabia State Key Laboratory of Ultra-Precision Machining Technology Department of Industrial and Systems Engineer-ingThe Hong Kong Polytechnic UniversityHong KongChina College of Engineering University of Sharjah27272 SharjahUnited Arab Emirates Hanergy(Qingdao)Lubrication Technology Co. Ltd.Qingdao 266100China

minimum quantity Lubrication(MQL)is a sustainable lubrication system that is famous in many machining *** involve the spray of an infinitesimal amount of mist-like lubricants during machining *** MQL system is affirmed to exhibit an excellent machining performance,and it is highly *** nanofluids are understood to exhibit excellent lubricity and heat evacuation capability,compared to pure oil-based MQL *** have shown that the surface quality and amount of energy expended in the grinding operations can be reduced considerably due to the positive effect of these *** work presents an experimental study on the tribological performance of SiO_(2)nanofluid during grinding of Si_(3)N_(4)*** effect different grinding modes and lubrication systems during the grinding operation was also *** concentrations of the SiO_(2)nanofluid was manufactured using canola,corn and sunflower *** quantitative evaluation of the grinding process was done based on the amount of grinding forces,specific grinding energy,frictional coefficient,and surface *** was found that the canola oil exhibits optimal lubrication performance compared to corn oil,sunflower oil,and traditional lubrication ***,the introduction of ultrasonic vibrations with the SiO_(2)nanofluid in MQL system was found to reduce the specific grinding energy,normal grinding forces,tangential grinding forces,and surface roughness by 65%,57%,65%,and 18%***,regression analysis was used to obtain an optimum parameter *** observations from this work will aid the smooth transition towards ecofriendly and sustainable machining of engineering ceramics.

关键词： minimum quantity lubrication(MQL) Ultrasonic assisted grinding(UAG) Eco-friendly lubricants Nanofluid Grinding Ceramic

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Core-shell nanoparticle enhanced Raman spectroscopy in situ probing the composition and evolution of interfacial species on PtCo surfaces

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Nano Research 2024年第6期17卷 4687-4692页

作者： Jing Liu Han-Liang Zhong Xiangyu Li Mu-Fei Yue Wei-min yang Xueqiu You Jing-Hua Tian Yao-Hui Wang Jian-Feng Li Fujian Provincial Key Laboratory of Oceanic Information Perception and Intelligent Processing School of Ocean Information EngineeringJimei UniversityXiamen 361021China College of Chemistry Fuzhou UniversityFuzhou 350108China State Key Laboratory of Physical Chemistry of Solid Surfaces MOE Key Laboratory of Spectrochemical Analysis and InstrumentationiChEMCollege of Chemistry and Chemical EngineeringCollege of MaterialsCollege of EnergyXiamen UniversityXiamen 361005China Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361005China Shenzhen Research Institute of Xiamen University Shenzhen 518000China

The composition and evolution of interfacial species play a key role during electrocatalytic *** the structural evolution and intermediate during catalytic process by in situ characterization can shed new light on the electrocatalytic reaction mechanism and develop highly efficient ***,directly probing the interfacial species is extremely difficult for most spectroscopic techniques due to complicated interfacial environment and ultra-low surface ***,electrochemical core-shell nanoparticle enhanced Raman spectroscopy is utilized to probe the composition and evolution processes of interfacial species on Au@Pt,Au@Co,and Au@PtCo core-shell nanoparticle *** spectral evidences of interfacial intermediates including hydroxide radical(OH*),superoxide ion(O_(2)^(−)),as well as metal oxide species are directly captured by in situ Raman spectroscopy,which are further confirmed by the both isotopic experiment and density functional theory *** results provide a mechanistic guideline for the rational design of highly efficient electrocatalysts.

关键词： in situ Raman core-shell nanoparticle PtCo interfacial species composition and evolution

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Effectiveness and safety of early lens extraction during par plana vitrectomy for proliferative diabetes retinopathy with mild cataract:a randomized clinical trial

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International Journal of Ophthalmology(English edition) 2024年第3期17卷 528-536页

作者： Wei-Bo Feng Lei Zheng Ying-Qi Li Yong-Hao Li Guo-ming Zhang Xian Wang Bing-Qian Liu Ling Jin Yi-Nuo Huang yang-Fan yang Zi-Dong Chen Da-Hui Ma Qing-Shan Chen Chao-Jun Qin Bing-min Feng Zhu-min yang Xing Huang Cheng-Jie yang Sheng-Hui Liu ming-Xing Wu State Key Laboratory of Ophthalmology Guangdong Provincial Key Laboratory of Ophthalmology and Visual ScienceGuangdong Provincial Clinical Research Center for Ocular DiseasesZhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou 510275Guangdong ProvinceChina Shenzhen Eye Hospital Affiliated to Jinan University Shenzhen 518040Guangdong ProvinceChina The Affiliated Hospital of Guizhou Medical University Guiyang 550004Guizhou ProvinceChina Guangzhou Aier Eye Hospital Guangzhou 510000Guangdong ProvinceChina

●AIM:To evaluate the effectiveness and safety of early lens extraction during pars plana vitrectomy(PPV)for proliferative diabetic retinopathy(PDR)compared to those of PPV with subsequent cataract surgery.●METHODS:This multicenter randomized controlled trial was conducted in three Chinese hospitals on patients with PDR,aged>45y,with mild *** participants were randomly assigned to the combined(PPV combined with simultaneously cataract surgery,i.e.,phacovitrectomy)or subsequent(PPV with subsequent cataract surgery 6mo later)group and followed up for *** primary outcome was the change in best-corrected visual acuity(BCVA)from baseline to 6mo,and the secondary outcomes included complication rates and medical expenses.●RESULTS:In total,129 patients with PDR were recruited and equally randomized(66 and 63 in the combined and subsequent groups respectively).The change in BCVA in the combined group[mean,36.90 letters;95%confidence interval(CI),30.35–43.45]was significantly better(adjusted difference,16.43;95%CI,8.77–24.08;P<0.001)than in the subsequent group(mean,22.40 letters;95%CI,15.55–29.24)6mo after the PPV,with no significant difference between the two groups at *** overall surgical risk of two sequential surgeries was significantly higher than that of the combined surgery for neovascular glaucoma(17.65%vs 3.77%,P=0.005).No significant differences were found in the photocoagulation spots,surgical time,and economic expenses between two *** the subsequent group,the duration of work incapacity(22.54±9.11d)was significantly longer(P<0.001)than that of the combined group(12.44±6.48d).●CONCLUSION:PDR patients aged over 45y with mild cataract can also benefit from early lens extraction during PPV with gratifying effectiveness,safety and convenience,compared to sequential surgeries.

关键词： lens extraction pars plana vitrectomy proliferative diabetic retinopathy cataract simultaneously operations

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Noteworthy impacts of COVID-19 pandemic on cancer screening:A systematic review

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Fundamental Research 2024年第3期4卷 484-494页

作者： Huilin Wang min yang Wei Xiong Quan Wang Bobo Zheng yang Bai Kaiyong Zou Jibin Li Jiansong Ren Wanqing Chen Jingbo Zhai Jiang Li Office for Cancer Screening National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Department of Comprehensive Intervention National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Department of Gynecology Endocrine&Reproductive Center National Clinical Research Center for Obstetric&Gynecologic Diseases Department of Obstetrics and GynecologyPeking Union Medical College HospitalPeking Union Medical College/Chinese Academy of Medical SciencesBeijing 100005China Ambulatory Surgery Center of Xijing Hospital Fourth Military Medical UniversityXi'an 710068China Department of General Surgery Shaanxi Provincial People’s HospitalXi'an 710068China College of Clinical Medicine Capital Medical UniversityBeijing 100069China School of Public Health Tianjin University of Traditional Chinese MedicineTianjin 301617China

The sudden onset of the coronavirus disease 2019(COVID-19)in January 2020 has affected essential global health ***-screening services that can reduce cancer mortality are strongly ***,the specific role of COVID-19 in cancer screening is not fully *** study aimed to assess the efficiency of global cancer screening programs before and during the COVID-19 pandemic and to promote potential cancer-screening strategies for the next *** searches in PubMed,Embase,and Web of Science,and manual searches were performed between January 1,2020 and March 1,*** studies that reported the number of participants who underwent cancer screening before and during the COVID-19 pandemic were *** methodological quality of the included studies was assessed using the Newcastle-Ottawa *** in cancer-screening rates were estimated using the incidence rate ratio(IRR).Fifty-five cohort studies were included in this *** screening rates of colorectal cancer using invasive screening methods(Pooled IRR=0.52,95%CI:0.42 to 0.65,p<0.01),cervical cancer(Pooled IRR=0.56,95%CI:0.47 to 0.67,p<0.01),breast cancer(Pooled IRR=0.57,95%CI:0.49 to 0.66,p<0.01)and prostate cancer(Pooled IRR=0.71,95%CI:0.56 to 0.90,p<0.01)during the COVID-19 pandemic were significantly lower than those before the COVID-19 *** screening rates of lung cancer(Pooled IRR=0.77,95%CI:0.58 to 1.03,p=0.08)and colorectal cancer using noninvasive screening methods(Pooled IRR=0.74,95%CI:0.50 to 1.09,p=0.13)were reduced with no statistical *** subgroup analyses revealed that the reduction in cancer-screening rates varied across *** results suggest that the COVID-19 pandemic has had a noteworthy impact on colorectal,cervical,breast,and prostate cancer *** innovative cancer-screening technologies is important to promote the efficiency of cancer-screening services in the post-COVID-19 era and prepare fo

关键词： Cancer screening COVID-19 pandemic Cohort study Incidence rate ratio Meta-analysis

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Correlation between abdominal computed tomography signs and postoperative prognosis for patients with colorectal cancer

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World Journal of Gastrointestinal Surgery 2024年第7期16卷 2145-2156页

作者： Shao-min yang Jie-Mei Liu Rui-Ping Wen Yu-Dong Qian Jing-Bo He Jing-Song Sun Department of Radiology Xingtan Hospital Affiliated to Shunde Hospital of Southern Medical UniversityFoshan 528315Guangdong ProvinceChina Department of Rehabilitation Medicine Shunde HospitalSouthern Medical UniversityFoshan 528399Guangdong ProvinceChina Department of Radiology Lecong Hospital of ShundeFoshan 528315Guangdong ProvinceChina Department of Ultrasound Lecong Hospital of ShundeFoshan 528315Guangdong ProvinceChina

BACKGROUND Patients with different stages of colorectal cancer(CRC)exhibit different abdominal computed tomography(CT)***,the influence of CT signs on CRC prognosis must be *** To observe abdominal CT signs in patients with CRC and analyze the correlation between the CT signs and postoperative *** The clinical history and CT imaging results of 88 patients with CRC who underwent radical surgery at Xingtan Hospital Affiliated to Shunde Hospital of Southern Medical University were retrospectively *** and multivariate Cox regression analyses were used to explore the independent risk factors for postoperative death in patients with *** three-year survival rate was analyzed using the Kaplan-Meier curve,and the correlation between postoperative survival time and abdominal CT signs in patients with CRC was analyzed using Spearman correlation *** For patients with CRC,the three-year survival rate was 73.86%.The death group exhibited more severe characteristics than the survival group.A multivariate Cox regression model analysis showed that body mass index(BMI),degree of periintestinal infiltration,tumor size,and lymph node CT value were independent factors influencing postoperative death(P<0.05 for all).Patients with characteristics typical to the death group had a low three-year survival rate(log-rankχ2=66.487,11.346,12.500,and 27.672,respectively,P<0.05 for all).The survival time of CRC patients was negatively correlated with BMI,degree of periintestinal infiltration,tumor size,lymph node CT value,mean tumor long-axis diameter,and mean tumor short-axis diameter(r=-0.559,0.679,-0.430,-0.585,-0.425,and-0.385,respectively,P<0.05 for all).BMI was positively correlated with the degree of periintestinal invasion,lymph node CT value,and mean tumor short-axis diameter(r=0.303,0.431,and 0.437,respectively,P<0.05 for all).CONCLUSION The degree of periintestinal infiltration,tumor size,and lymph node CT value are c

关键词： Colorectal cancer Abdominal Computed tomography signs Radical surgery Prognosis Correlation

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Efficacy of radiofrequency ablation combined with sorafenib for treating liver cancer complicated with portal hypertension and prognostic factors

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World Journal of Gastroenterology 2024年第11期30卷 1533-1544页

作者： Li-min yang Hong-Juan Wang Shan-Lin Li Guan-Hua Gan Wen-Wen Deng Yong-Sheng Chang Lian-Feng Zhang Department of Gastroenterology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina Department of Gastroenterology Zhoukou Central Hospital of Henan ProvinceZhoukou 466000Henan ProvinceChina Department of Gastroenterology The First Affiliated Hospital of Xinxiang Medical CollegeXinxiang 453000Henan ProvinceChina

BACKGROUND Patients with liver cancer complicated by portal hypertension present complex challenges in *** To evaluate the efficacy of radiofrequency ablation in combination with sorafenib for improving liver function and its impact on the prognosis of patients with this *** Data from 100 patients with liver cancer complicated with portal hypertension from May 2014 to March 2019 were analyzed and divided into a study group(n=50)and a control group(n=50)according to the treatment *** research group received radiofrequency ablation(RFA)in combination with sorafenib,and the control group only received *** short-term efficacy of both the research and control groups was *** function and portal hypertension were compared before and after ***-fetoprotein(AFP),glypican-3(GPC-3),and AFP-L3 levels were compared between the two groups prior to and after *** occurrence of adverse reactions in both groups was *** 3-year survival rate was compared between the two *** data were compared between the survival and non-surviving *** identify the independent risk factors for poor prognosis in patients with liver cancer complicated by portal hypertension,multivariate logistic regression analysis was *** When comparing the two groups,the research group's total effective rate(82.00%)was significantly greater than that of the control group(56.00%;Pminotransferase and aspartate aminotransferase levels increased,and portal vein pressure decreased in both *** degree of improvement for every index was substantially greater in the research group than in the control group(P<0.05).Following treatment,the AFP,GPC-3,and AFP-L3 levels in both groups decreased,with the research group having significantly lower levels than the control group(P<0.05).The incidence of diarrhea,rash,nausea and vomiting,and fatigue in the research group was significantly great

关键词： Radiofrequency ablation Sorafenib Liver cancer Portal hypertension Efficacy Prognosis analysis

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Slc43a2^(+)T cell metastasis from spleen to brain in RGNNV infected teleost

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Science China(Life Sciences) 2024年第4期67卷 733-744页

作者： Qing Wang Yali Liu minlin Zhang min yang Jiantao Liang Xiaoling Zuo Shaowen Wang Xianze Jia Huihong Zhao Han Jiang Qiang Lin Qiwei Qin College of Marine Sciences South China Agricultural UniversityGuangzhou 510642China CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Nansha-South China Agricultural University Fishery Research Institute Guangzhou 511457China Joint University Laboratory of Guangdong Province Hong Kong and Marco Region on Marine Bioresource Conservation and ExploitationGuangzhou 510642China University of Chinese Academy of Sciences Beijing 100101China

The origin of T cells in the teleost's brain is *** viewing the central nervous system(CNS)as immune privileged has been widely accepted,previous studies suggest that T cells residing in the thymus but not in the spleen of the teleost play an essential role in communicating with the peripheral ***,we identified nine T cell subpopulations in the thymus and spleen of orange-spotted grouper(Epinephelus coioices)through single-cell RNA-sequencing *** viral CNS infection with red-spotted grouper nervous necrosis virus(RGNNV),the number of slc43a2^(+)T cells synchronously increased in the spleen and *** the infection tests in asplenic zebrafish(tlx1^▲zebrafish model),no increase in the number of slc43a2^(+)T cells was observed in the ***-cell transcriptomic analysis indicated that slc43a2^(+)T cells mature and functionally differentiate within the spleen and then migrate into the brain to trigger an immune *** study suggests a novel route for T cell migration from the spleen to the brain during viral infection in fish.

关键词： central nervous system slc43a2^(+)T cell RGNNV T cell migration teleost

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Bioinspired anti-freezing 3D-printable conductive hydrogel microfibers for highly-sensitive and wide-range detection of ultralow and high strains

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Green Chemical Engineering 2024年第1期5卷 132-143页

作者： Yi-min yang Ting-Yuan Hu Haidong Fan Lu Shi Shi-Yuan Zhang Zhuang Liu Xiao-Jie Ju Rui Xie Wei Wang Liang-Yin Chu School of Chemical Engineering Sichuan UniversityChengdu610065China Department of Mechanics Sichuan UniversityChengdu610065China State Key Laboratory of Polymer Materials Engineering Sichuan UniversityChengdu610065China

Soft strain sensors that can transduce stretch stimuli into electrical readouts are promising as sustainable wearable ***,most strain sensors cannot achieve highly-sensitive and wide-range detection of ultralow and high *** by bamboo structures,anti-freezing microfibers made of conductive poly(vinyl alcohol)hydrogel with poly(3,4-ethylenedioxythiphene)-poly(styrenesulfonate)are developed via continuous microfluidic *** microfibers provide unique bamboo-like structures with enhanced local stress to improve both their length change and resistance change upon stretching for efficient signal *** microfibers allow highlysensitive(detection limit:0.05%strain)and wide-range(0%-400%strain)detection of ultralow and high strains,as well as features of good stretchability(485%strain)and anti-freezing property(freezing temperature:-41.1°C),fast response(200 ms),and good *** experimental results,together with theoretical foundation analysis and finite element analysis,prove their enhanced length and resistance changes upon stretching for efficient signal *** integrating microfluidic spinning with 3D-printing technique,the textiles of the microfibers can be flexibly *** microfibers and their 3D-printed textiles enable highperformance monitoring of human motions including finger bending and throat vibrating during *** work provides an efficient and general strategy for developing advanced conductive hydrogel microfibers as highperformance wearable strain sensors.

关键词： Conductive hydrogel microfibers Microfluidics Sensitive detection Wide detection range Anti-freezing

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