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Facile and Low-Cost Fabrication of a Thread/Paper-Based Wearable System for Simultaneous Detection of Lactate and pH in Human Sweat 认领 引用 被引量：8
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作者 Gang Xiao Jing He +6 位作者 Yan Qiao Feng Wang Qingyou Xia Xin Wang Ling Yu Zhisong Lu Chang-Ming Li 《Advanced Fiber Materials》 SCIE EI CAS 2020年第5期265-278,共14页
Wearable devices have received tremendous interests in human sweat analysis in the past few years.However,the widely used polymeric substrates and the layer-by-layer stacking structures greatly influence the cost-effi... Wearable devices have received tremendous interests in human sweat analysis in the past few years.However,the widely used polymeric substrates and the layer-by-layer stacking structures greatly influence the cost-efficiency,conformability and breathability of the devices,further hindering their practical applications.Herein,we report a facile and low-cost strategy for the fabrication of a skin-friendly thread/paper-based wearable system consisting of a sweat reservoir and a multi-sensing component for simultaneous in situ analysis of sweat pH and lactate.In the system,hydrophilic silk thread serves as the micro-channel to guide the liquid flow.Filter papers were functionalized to prepare colorimetric sensors for lactate and pH.The smartphone-based quantitative analysis shows that the sensors are sensitive and reliable.Although pH may interfere the lactate detection,the pH detected simultaneously could be employed to correct the measured data for the achievement of a precise lactate level.After being integrated with a hydrophobic arm guard,the system was successfully used for the on-body measurement of pH and lactate in the sweats secreted from the volunteers.This low-cost,easy-to-fabricate,light-weight and flexible thread/paper-based microfluidic sensing device may hold great potentials as a wearable system in human sweat analysis and point-of-care diagnostics. 展开更多
关键词 Wearable sensors Thread/paper-based microfluidics Sweat analysis Point-of-care diagnostics Multi-sensing system
A Stable,Reliable,Cost-Effective Technique Route for Ni Detection in Industrial Wastewater via a Microfluidic Paper-Based Platform 认领 引用
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作者 Xiuxia Li Qing’er Yao +11 位作者 Jiangyue Bai Zihang Wang Xiaolu Xiong Zifan Ning Songhe Liu Shiqi Xu Chunpan Zhang Yujiu Jiang Mingxu Chu Yanbo Yang Dong Jiang Junfeng Han 《Journal of Environmental & Earth Sciences》 CAS 2025年第4期280-290,共11页
Nickel(II)as one of the primary categories of heavy metals can lead to serious health problems if achieving the critical levels in the water.Thus,it is vital to propose a stable,reliable,and economical approach for de... Nickel(II)as one of the primary categories of heavy metals can lead to serious health problems if achieving the critical levels in the water.Thus,it is vital to propose a stable,reliable,and economical approach for detecting Ni ions.The microfluidic paper-based analytical devices(µPADs)are potential candidates for the detection of water quality parameters including pH,heavy ions,nitrite and so on.However,it suffers from a huge error caused by the environment and artificial mistakes.In this study,we proposed an improved technique route to increase the stability and reliability of microfluidic paper-based analytical devices.The main technique points include a stable light source,a matched camera,improved reliability of the devices,and effective calculated methods.Finally,we established 15 standard curves that could be used to detect nickel ions and obtained uniform colorimetric results with reliability and repeatability.With those improvements,the relative errors for the five types of real water samples from the Zhongshan industrial parks were reduced to 0.26%,14.78%,24.20%,50.29%and 3.53%,respectively.These results were conducive to exploring this technique for the detection of nickel ions in wastewater from the Zhongshan industrial parks.The results demonstrated that the above technique route is promising for the detection of other heavy metal ions in industrial effluent. 展开更多
关键词 Nickel Detection Industrial Wastewater Detection Microfluidic Paper-Based Chips Analytical Device
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Research Progress on Microfluidic Paper-based Analytical Devices for Point-of-care Testing 认领 引用 被引量：1
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作者 ZHANG Yuji XU Ruicheng SHAN Dan 《激光生物学报》 CAS 2025年第1期1-11,共11页
Point-of-care testing(POCT)refers to a category of diagnostic tests that are performed at or near to the site of the patients(also called bedside testing)and is capable of obtaining accurate results in a short time by... Point-of-care testing(POCT)refers to a category of diagnostic tests that are performed at or near to the site of the patients(also called bedside testing)and is capable of obtaining accurate results in a short time by using portable diagnostic devices,avoiding sending samples to the medical laboratories.It has been extensively explored for diagnosing and monitoring patients’diseases and health conditions with the assistance of development in biochemistry and microfluidics.Microfluidic paper-based analytical devices(μPADs)have gained dramatic popularity in POCT because of their simplicity,user-friendly,fast and accurate result reading and low cost.SeveralμPADs have been successfully commercialized and received excellent feedback during the past several decades.This review briefly discusses the main types ofμPADs,preparation methods and their detection principles,followed by a few representative examples.The future perspectives of the development inμPADs are also provided. 展开更多
关键词 point-of-care testing microfluidic paper-based analytical devices sensor personalized medical treatment portable diagnostic equipment
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High-efficiency theoretical model for predicting contact forces and deformations in threaded connections under complex loading 认领 引用
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作者 Zhao Liu Zeyu Qi +1 位作者 Xuefeng Wang Caishan Liu 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2026年第6期490-503,共14页
Threaded connection is a common structural form in mechanical engineering,with their complex nonlinear behavior under combined loading critically affecting structural performance.While existing simplified models and f... Threaded connection is a common structural form in mechanical engineering,with their complex nonlinear behavior under combined loading critically affecting structural performance.While existing simplified models and finite element analysis(FEA)methods describe force distribution under single loading conditions,accurately modeling threaded connections under complex loading remains challenging.This paper proposes a simplified theoretical model to efficiently predict contact forces and deformation distributions under tension,torsion,bending,and shear.The model treats bolt and nut bodies as Euler-Bernoulli beams and represents thread stiffness using equivalent trapezoidal cantilever beams,reducing computational complexity while retaining essential mechanical characteristics.The paper introduces reference helical curves and derives a deformation coordination relationship based on contact constraints.The model’s calculations are validated against FEA results,demonstrating both high precision and significant computational efficiency under complex loading conditions.This work provides an efficient and reliable tool for analyzing threaded connections,offering promising engineering applications. 展开更多
关键词 Thread connection Contact force distribution Deformation coordination relationship Theoretical modeling Finite ele-ment analysis
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Corrosion failure analysis of J55 tubing thread fastener in an electric pump well in an oil field 认领 引用
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作者 QI Yameng ZHOU Xiong 《Baosteel Technical Research》 CAS 2026年第1期35-39,共5页
The J55 tubing thread fastener in an electric pump well experienced corrosion failure.The causes of the failure were investigated through physical and chemical property tests,corrosion product analysis,and microbial a... The J55 tubing thread fastener in an electric pump well experienced corrosion failure.The causes of the failure were investigated through physical and chemical property tests,corrosion product analysis,and microbial analysis.The results show that the metallographic structure and composition of the J55 tubing were normal.CO 2 corrosion was not the main cause of the thread fastener failure.The actual cause of the corrosion failure was microbiological corrosion,such as sulfate-reducing bacteria,thiosulfate-reducing bacteria,and iron-oxidizing bacteria. 展开更多
关键词 electric pump well tubing thread corrosion perforation microbiological corrosion failure analysis
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Modified anal fistula clip:A safe and effective alternative to incision and thread hanging for anal fistula 认领 引用
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作者 Ying Han Xiao-Li Fang +6 位作者 Kun Tang Ran Tang Xian-Shui Mei Run Zhang Li Chen Jian-Min Wang Ming Li 《World Journal of Gastrointestinal Surgery》 SCIE 2026年第7期309-317,共9页
BACKGROUND Anal fistula is a common anorectal disorder,for which incision and thread hanging(ITH)remains a widely used treatment.However,ITH is often associated with substantial postoperative discomfort and carries a ... BACKGROUND Anal fistula is a common anorectal disorder,for which incision and thread hanging(ITH)remains a widely used treatment.However,ITH is often associated with substantial postoperative discomfort and carries a risk of anal sphincter injury,potentially compromising functional outcomes.The anal fistula clip(AFC)is a novel surgical technique designed to occlude the internal orifice of the fistula,eliminate infection source,and preserve anal sphincter function.AIM To compare the efficacy and safety between AFC and ITH in a randomized,single-center study focusing on short-term postoperative outcomes.METHODS A total of 70 patients with anal fistula who underwent surgery from August 2019 to January 2025 were randomly assigned to the ITH or AFC group.The primary outcomes included cure rates,pain scores,anal sphincter function,and complications.Patients were followed up postoperatively for 6 months.RESULTS All surgeries were successfully performed,with postoperative cure rates exceeding 90%in both groups.No severe complications or postoperative fecal incontinence occurred.Compared with the ITH group,the AFC group demonstrated better outcomes in early postoperative pain(P<0.01),wound healing time(P<0.01),and anal sphincter function preservation(P<0.05).CONCLUSION Compared with ITH,AFC may reduce postoperative pain,shorten healing time,preserve function,and minimize complications.AFC may be safe and effective;however,larger studies with longer follow-up are needed. 展开更多
关键词 Anal fistula clip Incision and thread hanging treatment Anal fistula Anal sphincter function Postoperative pain Complications
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Threads of Revival 认领 引用
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作者 HU FAN 《China Today》 2026年第1期50-51,共2页
E-commerce has transformed Caoxian into a hub of traditional Chinese attire.STEPPING inside Caoxian’s Youai Cloud Warehouse,a livestreaming base dedicated to hanfu(traditional clothing),it feels less like a clothing ... E-commerce has transformed Caoxian into a hub of traditional Chinese attire.STEPPING inside Caoxian’s Youai Cloud Warehouse,a livestreaming base dedicated to hanfu(traditional clothing),it feels less like a clothing warehouse and more like a time capsule.Thousands of intricately embroidered garments line the racks-from elegant horse-face skirts to modernised editions of traditional Chinese clothing. 展开更多
关键词 livestreaming base clothing warehouse hanfu livestreaming caoxian threads revival youai cloud warehousea e commerce
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基于RT-Thread操作系统的白坯布缺陷检测系统的设计 认领 引用
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作者 汤喆 魏龙辉 +2 位作者 贾清林 刘天琦 陈磊 《现代信息科技》 2026年第14期178-184,192,共7页
针对纺织行业白坯布生产过程中人工缺陷检测效率低、漏检率高、检测标准不统一的问题,设计了一款基于RT-Thread操作系统的嵌入式白坯布缺陷检测系统。系统在架构上创新性地融合了“粗检—精检”两级视觉检测策略:前端OpenMV模块完成高... 针对纺织行业白坯布生产过程中人工缺陷检测效率低、漏检率高、检测标准不统一的问题,设计了一款基于RT-Thread操作系统的嵌入式白坯布缺陷检测系统。系统在架构上创新性地融合了“粗检—精检”两级视觉检测策略:前端OpenMV模块完成高速缺陷粗检与触发,后端STM32H743主控基于RT-Thread NNOM软件包首次实现了多类白坯布缺陷的端侧INT8量化模型部署与实时精检分类。同时,系统集成了步进电机传输对位、自动打标、本地Excel存储及OneNET云平台上传功能,形成了一体化的闭环检测解决方案。测试结果表明,该系统可实现裂缝、油污、胶水等多种缺陷的快速检测与精准分类,缺陷粗检响应时间≤180 ms,精检分类准确率≥94%,满足纺织生产线现场实时检测需求,相比传统人工检测大幅提升了效率与准确率,为中小纺织企业提供了低成本、轻量化、高集成的智能化检测新方案。 展开更多
关键词 RT-Thread STM32H743VGT6 缺陷检测 嵌入式机器视觉 深度学习 OneNET云平台
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Screen printing fabricating patterned and customized full paper-based energy storage devices with excellent photothermal,self-healing,high energy density and good electromagnetic shielding performances 认领 引用 被引量：8
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作者 Chuanyin Xiong Mengrui Li +3 位作者 Qing Han Wei Zhao Lei Dai Yonghao Ni 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2022年第2期190-200,共11页
Supercapacitors are favored by researchers because of their high power density,especially with the acceleration of people’s life rhythm.However,their energy density,especially from the point of view of the whole ener... Supercapacitors are favored by researchers because of their high power density,especially with the acceleration of people’s life rhythm.However,their energy density,especially from the point of view of the whole energy storage device,is far lower than that of commercial batteries.In this work,a kind of customizable full paper-based supercapacitor device with excellent self-healing ability is fabricated by simple and low-cost screen printing,electropolymerization and dip coating methods.The resultant separatorfree supercapacitor device exhibits both ultrahigh gravimetric and areal specific energy(power)densities of 39 Wh kg-1(69 k W kg-1)and 692μWh cm-2(236 m W cm-2),achieving excellent supercapacitor performance.Notably,the addition of vitrimers endows the whole device with outstanding self-healing properties,which is helpful for enhancing the adaptability of the device to the environment.In addition,this kind of paper-based device also displays good photothermal and electromagnetic shielding performances.These striking features make paper matrix composites attractive in the fields of supercapacitors,medical photothermal treatment and electromagnetic shielding. 展开更多
关键词 Customizable full paper-based supercapacitors Energy density Self-healing Photothermal Electromagnetic shielding
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Recent Research Progress of Paper-Based Supercapacitors Based on Cellulose 认领 引用 被引量：5
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作者 Chuanyin Xiong Tianxu Wang +2 位作者 Jing Han zhao Zhang Yonghao Ni 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2024年第3期345-373,共29页
In recent years,paper-based functional materials have received extensive attention in the field of energy storage due to their advantages of rich and adjustable porous network structure and good flexibility.As an impo... In recent years,paper-based functional materials have received extensive attention in the field of energy storage due to their advantages of rich and adjustable porous network structure and good flexibility.As an important energy storage device,paper-based supercapacitors have important application prospects in many fields and have also received extensive attention from researchers in recent years.At present,researchers have modified and regulated paper-based materials by different means such as structural design and material composition to enhance their electrochemical storage capacity.The development of paper-based supercapacitors provides an important direction for the development of green and sustainable energy.Therefore,it is of great significance to summarize the relevant work of paper-based supercapacitors for their rapid development and application.In this review,the recent research progress of paper-based supercapacitors based on cellulose was summarized in terms of various cellulose-based composites,preparation skills,and electrochemical performance.Finally,some opinions on the problems in the development of this field and the future development trend were proposed.It is hoped that this review can provide valuable references and ideas for the rapid development of paper-based energy storage devices. 展开更多
关键词 cellulose electrochemical performance flexibility paper-based supercapacitor porous
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A MXene-functionalized paper-based electrochemical immunosensor for label-free detection of cardiac troponin I 认领 引用 被引量：5
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作者 Li Wang Yufeng Han +4 位作者 Hongchen Wang Yaojie Han Jinhua Liu Gang Lu Haidong Yu 《Journal of Semiconductors》 EI CAS CSCD 2021年第9期53-60,共8页
Convenient,rapid,and accurate detection of cardiac troponin I(cTnI)is crucial in early diagnosis of acute myocardial infarction(AMI).A paper-based electrochemical immunosensor is a promising choice in this field,becau... Convenient,rapid,and accurate detection of cardiac troponin I(cTnI)is crucial in early diagnosis of acute myocardial infarction(AMI).A paper-based electrochemical immunosensor is a promising choice in this field,because of the flexibility,porosity,and cost-efficacy of the paper.However,paper is poor in electronic conductivity and surface functionality.Herein,we report a paper-based electrochemical immunosensor for the label-free detection of cTnI with the working electrode modified by MXene(Ti3C2)nanosheets.In order to immobilize the bio-receptor(anti-cTnI)on the MXene-modified working electrode,the MXene nanosheets were functionalized by aminosilane,and the functionalized MXene was immobilized onto the surface of the working electrode through Nafion.The large surface area of the MXene nanosheets facilitates the immobilization of antibodies,and the excellent conductivity facilitates the electron transfer between the electrochemical species and the underlying electrode surface.As a result,the paper-based immunosensor could detect cTnI within a wide range of 5-100 ng/mL with a detection limit of 0.58 ng/mL.The immunosensor also shows outstanding selectivity and good repeatability.Our MXene-modified paper-based electrochemical immunosensor enables fast and sensitive detection of cTnI,which may be used in real-time and cost-efficient monitoring of AMI diseases in clinics. 展开更多
关键词 paper-based immunosensor MXene electrochemical detection cardiac troponin I(cTnI)
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Fabrication of paper-based devices for in vitro tissue modeling 认领 引用 被引量：4
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作者 Hongbin Li Feng Cheng +3 位作者 Juan A.Robledo-Lara Junlong Liao Zixuan Wang Yu Shrike Zhang 《Bio-Design and Manufacturing》 SCIE EI CAS CSCD 2020年第3期252-265,共14页
Paper devices have recently attracted considerable attention as a class of cost-effective cell culture substrates for various biomedical applications.The paper biomaterial can be used to partially mimic the in vivo ce... Paper devices have recently attracted considerable attention as a class of cost-effective cell culture substrates for various biomedical applications.The paper biomaterial can be used to partially mimic the in vivo cell microenvironments mainly due to its natural three-dimensional characteristic.The paper-based devices provide precise control over their structures as well as cell distributions,allowing recapitulation of certain interactions between the cells and the extracellular matrix.These features have shown great potential for the development of normal and diseased human tissue models.In this review,we discuss the fabrication of paper-based devices for in vitro tissue modeling,as well as the applications of these devices toward drug screening and personalized medicine.It is believed that paper as a biomaterial will play an essential role in the field of tissue model engineering due to its unique performances,such as good biocompatibility,eco-friendliness,cost-effectiveness,and amenability to various biodesign and manufacturing needs. 展开更多
关键词 Paper-based devices In vitro Tissue modeling Disease modeling Drug screening Personalized medicine
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In Situ Directional Polymerization of Poly(1,3-dioxolane)Solid Electrolyte Induced by Cellulose Paper-Based Composite Separator for Lithium Metal Batteries 认领 引用 被引量：4
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作者 Jian Ma Yueyue Wu +5 位作者 Hao Jiang Xin Yao Fan Zhang Xianglong Hou Xuyong Feng Hongfa Xiang 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2023年第3期134-143,共10页
In traditional in situ polymerization preparation for solid-state electrolytes,initiators are directly added to the liquid precursor.In this article,a novel cellulose paper-based composite separator is fabricated,whic... In traditional in situ polymerization preparation for solid-state electrolytes,initiators are directly added to the liquid precursor.In this article,a novel cellulose paper-based composite separator is fabricated,which employs alumina as the inorganic reinforcing material and is loaded with polymerization initiator aluminum trifluoromethanesulfonate.Based upon this,a separator-induced in situ directional polymerization technique is demonstrated,and the extra addition of initiators into liquid precursors is no longer required.The polymerization starts from the surface and interior of the separator and extends outward with the gradually dissolving of initiators into the precursor.Compared with its traditional counterpart,the separator-induced poly(1,3-dioxolane)electrolyte shows improved interfacial contact as well as appropriately mitigated polymerization rate,which are conducive to practical applications.Electrochemical measurement results show that the prepared poly(1,3-dioxolane)solid electrolyte possesses an oxidation potential up to 4.4 V and a high Li+transference number of 0.72.After 1000 cycles at 2 C rate(340 mA g−1),the assembled Li||LiFePO4solid battery possesses a 106.8 mAh g−1discharge capacity retention and 83.5%capacity retention ratio,with high average Coulombic efficiency of 99.5%achieved.Our work may provide new ideas for the design and application of in situ polymerization technique for solid electrolytes and solid batteries. 展开更多
关键词 cellulose paper-based composite separator in situ directional polymerization lithium metal battery poly-DOL electrolyte solid-state electrolyte
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Highly Improved Microstructure and Properties of Poly(p-phenylene terephthalamide) Paper-based Materials via Hot Calendering Process 认领 引用 被引量：5
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作者 Bin Yang ZhaoQing Lu +2 位作者 MeiYun Zhang ShunXi Song RuNan Wang 《Paper And Biomaterials》 CAS 2017年第3期42-50,共9页
In this study,the effect of hot calendering process on the microstructure and properties of poly(p-phenylene terephthalamide)(PPTA) paper-based materials was investigated.The microstructures of the fracture surface,cr... In this study,the effect of hot calendering process on the microstructure and properties of poly(p-phenylene terephthalamide)(PPTA) paper-based materials was investigated.The microstructures of the fracture surface,crystalline structure,and single fiber strength of the PPTA paperbased materials as well as the different bonding behaviors between the PPTA fibers and PPTA fibrids obtained before and after the hot calendering process were examined.The results indicated that a high linear pressure would result in a limited improvement of the strength owing to the unimproved paper structure.The optimal values of tensile index and dielectric strength of 56.6 N·m/g and 27.6 kV/mm,respectively,could only be achieved with a synergistic effects of hot calendering temperature and linear pressure(240℃ and 110 k N/m,respectively).This result suggested it was possible to achieve a significant reinforcement and improvement in the interfacial bonding of functional PPTA paper-based materials,and avoid the formation of unexpected pleats and cracks in PPTA paper-based materials during the hot calendering process. 展开更多
关键词 PPTA paper-based materials hot calendering interfacial bonding crystalline structure PPTA fiber
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Rapid fabrication of modular 3D paper-basedmicrofluidic chips using projection-based 3D printing 认领 引用 被引量：1
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作者 Mingjun Xie Zexin Fu +5 位作者 Chunfei Lu Sufan Wu Lei Pan Yong He Yi Sun Ji Wang 《Bio-Design and Manufacturing》 SCIE EI CAS CSCD 2024年第5期611-623,共13页
Paper-based microchips have different advantages,such as better biocompatibility,simple production,and easy handling,making them promising candidates for clinical diagnosis and other fields.This study describes ametho... Paper-based microchips have different advantages,such as better biocompatibility,simple production,and easy handling,making them promising candidates for clinical diagnosis and other fields.This study describes amethod developed to fabricate modular three-dimensional(3D)paper-based microfluidic chips based on projection-based 3D printing(PBP)technology.A series of two-dimensional(2D)paper-based microfluidic modules was designed and fabricated.After evaluating the effect of exposure time on the accuracy of the flow channel,the resolution of this channel was experimentally analyzed.Furthermore,several 3D paper-based microfluidic chips were assembled based on the 2D ones using different methods,with good channel connectivity.Scaffold-based 2D and hydrogel-based 3D cell culture systems based on 3D paper-based microfluidic chips were verified to be feasible.Furthermore,by combining extrusion 3D bioprinting technology and the proposed 3D paper-based microfluidic chips,multiorgan microfluidic chips were established by directly printing 3D hydrogel structures on 3D paperbased microfluidic chips,confirming that the prepared modular 3D paper-based microfluidic chip is potentially applicable in various biomedical applications. 展开更多
关键词 Paper-based microfluidic chip Projection-based 3D printing(PBP) Modularization Cell culture
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Determination of inhibitory activity of Salvia miltiorrhiza extracts on xanthine oxidase with a paper-based analytical device 认领 引用 被引量：1
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作者 Xingchu Gong Jingyuan Shao +2 位作者 Shangxin Guo Jingjing Pan Xiaohui Fan 《Journal of Pharmaceutical Analysis》 SCIE CAS CSCD 2021年第5期603-610,共8页
A novel paper-based analytical device(PAD)was prepared and applied to determine the xanthine oxidase(XOD)inhibitory activity of Salvia miltiorrhiza extracts(SME).First,polycaprolactone was 3D printed on filter paper a... A novel paper-based analytical device(PAD)was prepared and applied to determine the xanthine oxidase(XOD)inhibitory activity of Salvia miltiorrhiza extracts(SME).First,polycaprolactone was 3D printed on filter paper and heated to form hydrophobic barriers.Then the modified paper was cut according to the specific design.Necessary reagents including XOD for the colorimetric assay were immobilized on two separate pieces of paper.By simply adding phosphate buffer,the reaction was performed on the double-layer PAD.Quantitative results were obtained by analyzing the color intensity with the specialized device system(consisting of a smartphone,a detection box and sandwich plates).The 3Dprinted detection box was small,with a size of 9.0 cm×7.0 cm×11.5 cm.Color component G performed well in terms of linearity and detection limits and thus was identified as the index.The reaction conditions were optimized using a definitive screening design.Moreover,a 10%glycerol solution was found to be a suitable stabilizer.When the stabilizer was added,the activity of XOD could be maintained for at least 15 days under 4℃ or-20℃ storage conditions.The inhibitory activity of SME was investigated and compared to that of allopurinol.The results obtained with the PAD showed agreement with those obtained with the microplate method.In conclusion,the proposed PAD method is simple,accurate and has a potential for point-of-care testing.It also holds promise for use in rapid quality testing of medicinal herbs,intermediate products,and preparations of traditional Chinese medicines. 展开更多
关键词 Paper-based analytical device(PAD) Point-of-care testing Xanthine oxidase Salvia miltiorrhiza extract 3D printing
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Clinical observation on prognosis of mixed hemorrhoids treated with polidocanol injection combined with automatic elastic thread ligation operation 认领 引用 被引量：7
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作者 Yan-Mei Huang Dong Ouyang 《World Journal of Gastrointestinal Surgery》 SCIE 2025年第1期209-216,共8页
BACKGROUND A total of 100 patients diagnosed with mixed hemorrhoids from October 2022 to September 2023 in our hospital were randomly divided into groups by dice rolling and compared with the efficacy of different tre... BACKGROUND A total of 100 patients diagnosed with mixed hemorrhoids from October 2022 to September 2023 in our hospital were randomly divided into groups by dice rolling and compared with the efficacy of different treatment options.AIM To analyze the clinical effect and prognosis of mixed hemorrhoids treated with polidocanol injection combined with automatic elastic thread ligation operation(RPH).METHODS A total of 100 patients with mixed hemorrhoids who visited our hospital from October 2022 to September 2023 were selected and randomly divided into the control group(n=50)and the treatment group(n=50)by rolling the dice.The procedure for prolapse and hemorrhoids(PPH)was adopted in the control group,while polidocanol foam injection+RPH was adopted in the treatment group.The therapeutic effects,operation time,wound healing time,hospital stay,pain situation(24 hours post-operative pain score,first defecation pain score),quality of life(QOL),incidence of complications(post-operative hemorrhage,edema,infection),incidence of anal stenosis 3 months post-operatively and recurrence rate 1 year post-operatively of the two groups were compared.RESULTS Compared with the control group,the total effective rate of treatment group was higher,and the difference was significant(P0.05);There was no significant difference in the incidence of anal stenosis 3 months after operation and the recurrence rate 1 year after operation between the two groups(P>0.05).CONCLUSION For patients with mixed hemorrhoids,the therapeutic effect achieved by using polidocanol injection combined with RPH was better.The wounds of the patients healed faster,the postoperative pain was milder,QOL improved,and the incidence of complications was lower,and the short-term and long-term prognosis was good. 展开更多
关键词 Mixed hemorrhoids Polidocanol injection Automatic elastic thread ligation operation Postoperative hemorrhage The degree of pain Recurrent rate
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Fiber swelling to improve cycle performance of paper-based separator for lithium-ion batteries application 认领 引用 被引量：3
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作者 Zhenghao Li Wei Wang +3 位作者 Xinmiao Liang Jianlin Wang Yonglin Xu Wei Li 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2023年第4期92-100,共9页
It is well established that paper-based separators display short-circuit risk in lithium-ion batteries due to their intrinsic micron-sized pores.In this research,we have adjusted pore structure of paper by fiber swell... It is well established that paper-based separators display short-circuit risk in lithium-ion batteries due to their intrinsic micron-sized pores.In this research,we have adjusted pore structure of paper by fiber swelling in liquid electrolyte.Specifically,the paper-based separator is prepared by propionylated sisal fibers through a wet papermaking process.Scanning electron microscope(SEM)and multi-range X-ray nano-computed tomography(CT)images display strong swelling of modified fibers after electrolyte absorption,which can effectively decrease the pore size of separator.Due to the high electrolyte uptake(817 wt%),paper-based separator exhibits ionic conductivity of 2.93 mS cm-1.7Li solid-state NMR spectroscopy and Gaussian simulation reveal that the formation of local high Li+ion concentration in the separator and its low absorption energy with Li+ ion(62.2 kcal mol-1)is conducive to the ionic transportation.In particular,the assembled Li/separator/LiFePO4 cell displays wide electrochemical stability window(5.2 V)and excellent cycle performance(capacity retention of 96.6%after 100 cycles at 0.5C)due to the reduced side reactions as well as enhanced electrolyte absorption and retention capacity by propionylation.Our proposed strategy will provide a novel perspective to design high-performance biobased separators to boost the development of clean and sustainable energy economy. 展开更多
关键词 Paper-based separators Lithium-ion batteries Electrochemical properties Propionylation
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Facile Fabrication of Cellulosic Paper-based Composites with Temperature-controlled Hydrophobicity and Excellent Mechanical Strength 认领 引用 被引量：6
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作者 Tongtong Yun Yilin Wang +3 位作者 Jie Lu Yi Cheng Yanna Lyu Haisong Wang 《Paper And Biomaterials》 CAS 2020年第2期20-27,共8页
In this paper,we presented a novel strategy to employ a plantderived carbohydrate polymer,i.e.,cellulose,to prepare a hydrophobic composite.Cellulose was used as a scaffold,and ethylene-propylene side by side(ES)fiber... In this paper,we presented a novel strategy to employ a plantderived carbohydrate polymer,i.e.,cellulose,to prepare a hydrophobic composite.Cellulose was used as a scaffold,and ethylene-propylene side by side(ES)fiber was thermally melted and then coated on the cellulose surface to achieve hydrophobicity.Experimental results revealed that the thermocoating ES fibers greatly increased the water contact angle of the cellulose scaffold from 25°to 153°while simultaneously enhanced the wet tensile strength of the composite approximately 6.7-fold(drying temperature of 170℃)compared with the pure cellulose paper.In particular,compared with other related research,the prepared cellulose-based composite possessed excellent hydrophobicity and superior mechanical strength,which introduces a new chemical engineering approach to prepare hydrophobic cellulose-based functional materials. 展开更多
关键词 cellulose ES fiber paper-based composites hydrophobicity mechanical strength
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A novel reverse-flow friction stir lap welding of 2024 aluminum alloys based on a right-left thread X-shape pin 认领 引用
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作者 Zhiqing Zhang Kaicheng Lu +5 位作者 Shude Ji Yumei Yue Qi Song Chen Jin Zhenyang Li Lin Ma 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2025年第25期92-106,共15页
For friction stir lap welding (FSLW) process by the rotating pin greatly inserting into the bottom plate, the bending-down morphology of hook helps to obtain a high-strength lap joint, and can be more conducive to the... For friction stir lap welding (FSLW) process by the rotating pin greatly inserting into the bottom plate, the bending-down morphology of hook helps to obtain a high-strength lap joint, and can be more conducive to the joint strength when the tensile-fractured path is located in the top plate. In light of this, the reverse-flow FSLW (RF-FSLW) by a newly designed rotating tool with a right-left threaded X-shape pin (X-pin) was employed to weld 2024-T4 aluminum alloys with the same plate thickness, and the flow field simulation, in situ tensile test and EBSD analysis were utilized to understand the relations among the formation features, the fracture features and the joint strengths. The results indicated that under the integrated effects of the bending-down shape of hook, the bulging shape of nugget zone (NZ) and the bending-up shape of beginning part of cold lap near NZ outline, the RF-FSLW joint was tensile fractured in the top plate of joint. For the RF-FSLW joint, its maximum tensile strength was 412 MPa, and the corresponding joint efficiency (92.8%) was larger than that of reported friction stir welded joint of 2024 aluminum alloys in T temper condition. The RF-FSLW technology by the right-left threaded X-pin puts forward an extremely effective way for obtaining the superb-strength lap joint of aluminum alloys. 展开更多
关键词 Reverse-flow friction stir lap welding 2024-T4 aluminum alloy Right-left threaded X-pin Hook Tensile strength
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