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| 1 | Fracture development in shale and its relationship to gas accumulation显示文摘有高石英,长石和碳酸盐的页岩,将有低泊松比率,高幼仔模量和高易碎物。作为结果,页岩是导致的在外部力量下面生产自然、导致的破裂。一般来说,在在页岩和在场的易碎的矿物质的体积的破裂开发之间有好关联。有高 TOC 或反常地高的压力的页岩开发得好破裂。页岩破裂开发也与全部的煤气的累积和免费煤气的体积显示出积极关联,即,页岩破裂越更好被开发,越 greater 煤气的累积并且因此越多更高煤气的生产。破裂为天然气和形成水提供迁居水管和累积空格,它为免费天然气的容量的增加是有利的。在页岩的更宽的破裂导致煤气的损失。在北美洲,从在页岩的高角度的破裂地区有页岩气体探索和高煤气的生产的高成功比率。在在四川盆的更低的古生代的海洋的器官的充满事的岩石中的好天然气表演或低收益制片人是仔细与在易碎的页岩的破裂开发的度有关。 | Wenlong Ding Chao Li Chunyan Li Changchun Xu Kai Jiu Weite Zeng Liming Wu | 2012 | Geoscience Frontiers2012，3，1： | 32 |
| 2 | Intelligent and connected vehicles: Current status and future perspectives显示文摘Intelligent connected vehicles(ICVs) are believed to change people's life in the near future by making the transportation safer,cleaner and more comfortable. Although many prototypes of ICVs have been developed to prove the concept of autonomous driving and the feasibility of improving traffic efficiency, there still exists a significant gap before achieving mass production of high-level ICVs. The objective of this study is to present an overview of both the state of the art and future perspectives of key technologies that are needed for future ICVs. It is a challenging task to review all related works and predict their future perspectives, especially for such a complex and interdisciplinary area of research. This article is organized to overview the ICV key technologies by answering three questions: what are the milestones in the history of ICVs; what are the electronic components needed for building an ICV platform; and what are the essential algorithms to enable intelligent driving? To answer the first question, the article has reviewed the history and the development milestones of ICVs. For the second question, the recent technology advances in electrical/electronic architecture, sensors, and actuators are presented. For the third question, the article focuses on the algorithms in decision making, as the perception and control algorithm are covered in the development of sensors and actuators. To achieve correct decision-making, there exist two different approaches: the principle-based approach and data-driven approach. The advantages and limitations of both approaches are explained and analyzed. Currently automotive engineers are concerned more with the vehicle platform technology, whereas the academic researchers prefer to focus on theoretical algorithms. However, only by incorporating elements from both worlds can we accelerate the production of high-level ICVs. | YANG DianGe JIANG Kun ZHAO Ding YU ChunLei CAO Zhong XIE ShiChao XIAO ZhongYang JIAO XinYu WANG SiJia ZHANG Kai | 2018 | Science China(Technological Sciences)2018，61，10： | 31 |
| 3 | Recent advances in solid polymer electrolytes for lithium batteries显示文摘 | Qingqing Zhang Kai Liu Fei Ding Xingjiang Liu | 2017 | Nano Research2017，10，12： | 24 |
| 4 | Molecular Characterization and Expression Analysis of TaZFP15, a C_2H_2-Type Zinc Finger Transcription Factor Gene in Wheat (Triticum aestivum L.)显示文摘Based on sequencing of part clones in a root subtractive cDNA library, an expressed sequence tag (EST) sharing high similarity to a rice C2H2 zinc finger transcription factor (ZFP15) was obtained in wheat. Through bioinformatics approach, the wheat C2H2-type ZFP gene referred to TaZFP15 has been identified and characterized. As a full-length cDNA of 670 bp, TaZFP15 has an open reading frame of 408 bp and encodes a 135-aa polypeptide. TaZFP15 contains two C2H2 zinc finger domains and each one has a conserved motif QALGGH. The typical L-box, generally identified in the C2H2 type transcription factors, has also been found in TaZFP15. Phylogenetic analysis suggested that TaZFP15 shares high similarities with rice ZFP15 (GenBank accession no. AY286473), maize ZFP (GenBank accession no. NM_001159094) and a subset of other zinc-finger transcription factor genes in plant species. The expression of TaZFP15 was up-regulated by starved-Pi stress, showing a pattern to be gradually elevated along with the progression of the Pi-stress in a 23-h treatment regime. Similarly, the transcripts of TaZFP15 in roots were also induced by nitrogen deficiency, and abiotic stresses of drought and salinity. No responses of TaZFP15 were detected in roots to nutrition deficiencies of P, Zn, and Ca, and the external treatment of abscisic acid (ABA). TaZFP15 could be specifically amplified in genome A, B, and D, and without variability in the sequences, suggesting that TaZFP15 has multi-copies in the homologous hexaploid species. Transgenic analysis in tobacco revealed that up-regulation of TaZFP15 could significantly improve plant dry mass accumulation via increasing the plant phosphorus acquisition capacity under Pi-deficiency condition. The results suggested that TaZFP15 is involved in mediation of signal transductions of diverse external stresses. | SUN Zhao-hua DING Chang-huan LI Xiao-juan XIAO Kai | 2012 | Journal of Integrative Agriculture2012，11，1： | 22 |
| 5 | Research progress in ZnO single-crystal:growth, scientific understanding, and device applications显示文摘Zinc oxide,a wide band-gap semiconductor,has shown extensive potential applications in high-efficiency semiconductor photoelectronic devices,semiconductor photocatalysis,and diluted magnetic semiconductors.Due to the undisputed lattice integrity,ZnO single crystals are essential for the fabrication of high-quality ZnO-based photoelectronic devices,and also believed to be ideal research subjects for understanding the underlying mechanisms of semiconductor photocatalysis and diluted magnetic semiconductors.This review,which is organized in two main parts,introduces the recent progress in growth,basic characterization,and device development of ZnO single crystals,and some related works in our group.The first part begins from the growth of ZnO single crystal,and summarizes the fundamental and applied investigations based on ZnO single crystals.These works are composed of the fabrication of homoepitaxial ZnO-based photoelectronic devices,the research on the photocatalysis mechanism,and dilute magnetic mechanism.The second part describes the fabrication of highly thermostable n-type ZnO with high mobility and high electron concentration through intentional doping.More importantly,in this part,a conceptual approach for fabricating highly thermostable p-type ZnO materials with high mobility through an integrated three-step treatment is proposed on the basis of the preliminary research. | Feng Huang Zhang Lin Wenwen Lin Jiye Zhang Kai Ding Yonghao Wang Qinghong Zheng Zhibing Zhan Fengbo Yan Dagui Chen Peiwen Lv Xian Wang | 2014 | Chinese Science Bulletin2014，59，12： | 11 |
| 6 | An Object-based Approach for Two-level Gully Feature Mapping Using High-resolution DEM and Imagery: A Case Study on Hilly Loess Plateau Region, China显示文摘Gully feature mapping is an indispensable prerequisite for the motioning and control of gully erosion which is a widespread natural hazard. The increasing availability of high-resolution Digital Elevation Model(DEM) and remote sensing imagery, combined with developed object-based methods enables automatic gully feature mapping. But still few studies have specifically focused on gully feature mapping on different scales. In this study, an object-based approach to two-level gully feature mapping, including gully-affected areas and bank gullies, was developed and tested on 1-m DEM and Worldview-3 imagery of a catchment in the Chinese Loess Plateau. The methodology includes a sequence of data preparation, image segmentation, metric calculation, and random forest based classification. The results of the two-level mapping were based on a random forest model after investigating the effects of feature selection and class-imbalance problem. Results show that the segmentation strategy adopted in this paper which considers the topographic information and optimal parameter combination can improve the segmentation results. The distribution of the gully-affected area is closely related to topographic information, however, the spectral features are more dominant for bank gully mapping. The highest overall accuracy of the gully-affected area mapping was 93.06% with four topographic features. The highest overall accuracy of bank gully mapping is 78.5% when all features are adopted. The proposed approach is a creditable option for hierarchical mapping of gully feature information, which is suitable for the application in hily Loess Plateau region. | LIU Kai DING Hu TANG Guoan ZHU A-Xing YANG Xin JIANG Sheng CAO Jianjun | 2017 | Chinese Geographical Science2017，27，3： | 11 |
| 7 | Retrospective evaluation of lymphatic and blood vessel invasion and Borrmann types in advanced proximal gastric cancer显示文摘BACKGROUND The Borrmann classification system is used to describe the macroscopic appearance of advanced gastric cancer,and Borrmann typeⅣdisease is independently associated with a poor prognosis.AIM To evaluate the prognostic significance of lymphatic and/or blood vessel invasion(LBVI)combined with the Borrmann type in advanced proximal gastric cancer(APGC).METHODS The clinicopathological and survival data of 440 patients with APGC who underwent curative surgery between 2005 and 2012 were retrospectively analyzed.RESULTS In these 440 patients,LBVI+status was associated with Borrmann typeⅣ,low histological grade,large tumor size,and advanced pT and pN status.The 5-year survival rate of LBVI+patients was significantly lower than that of LBVI– patients,although LBVI was not an independent prognostic factor in the multivariate analysis.No significant difference in the prognosis of patients with Borrmann typeⅢ/LBVI+disease and patients with Borrmann typeⅣdisease was observed.Therefore,we proposed a revised Borrmann typeⅣ(r-BorⅣ)as Borrmann typeⅢplus LBVI+,and found that r-BorⅣwas associated with poor prognosis in patients with APGC,which outweighed the prognostic significance of pT status.CONCLUSION LBVI is related to the prognosis of APGC,but is not an independent prognostic factor.LBVI status can be used to differentiate Borrmann typesⅢandⅣ,and the same approach can be used to treat r-BorⅣand Borrmann typeⅣ. | Shan Gao Guo-Hui Cao Peng Ding Yang-Yang Zhao Peng Deng Bin Hou Kai Li Xiao-Fang Liu | 2019 | World Journal of Gastrointestinal Oncology2019，11，8： | 11 |
| 8 | Outpatient versus inpatient laparoscopic cholecystectomy:a single center clinical analysis显示文摘BACKGROUND:Outpatient laparoscopic cholecystectomy (OPLC) developed in the United States and other developed countries as one of the fast-track surgeries performed in ambulatory centers.However,this practice has not been installed as a routine practice in the major general hospitals and medical centers in China.We designed this case-control study to evaluate the feasibility,benefits,and safety of OPLC.METHODS:Two hundred patients who had received laparoscopic cholecystectomy for various benign gallbladder pathologies from April 2007 to December 2008 at Jinling Hospital of Nanjing University School of Medicine were classified into two groups:OPLC group (100 patients),and control group (100),who were designated for inpatient laparoscopic cholecystectomy (IPLC).Data were collected for age,gender,indications for surgery,American Society of Anesthesiology (ASA) class,operative time,blood loss during surgery,length of hospitalization,and intra-and post-operative complications.The expenses of surgery and in-hospital care were calculated and analyzed.The operative procedures and instrumentation were standardized for laparoscopic cholecystectomy,and the procedures were performed by two attending surgeons specialized in laparoscopic surgery.OPLC was selected according to the standard criteria developed by surgeons in our hospital after review.Reasons for conversion from laparoscopic to open cholecystectomy were recorded and documented.RESULTS:One hundred patients underwent IPLC following the selection criteria for the procedure,and 99% completed the procedure.The median operative time for IPLC was 24.0 minutes,blood loss was 16.2 ml,and the time for resuming liquid then soft diet was 10.7 hours and 22.0 hours,respectively.Only one patient had postoperative urinary infection.The mean hospital stay for IPLC was 58.2 hours,and the cost for surgery and hospitalization was 8770.5 RMB yuan on average.Followup showed that 90% of the patients were satisfied with the procedure.In the OPLC group,99% of the patients underwent the procedure with a median operative time of 21.6 minutes and bleeding of 14.7 ml.The patients took liquid 11.3 hours then soft diet 20.1 hours after surgery.The mean postoperative hospital stay was 28.5 hours.In this group,89% of the patients were discharged within the first 24 hours,and the remaining 11% were released within 48 hours after surgery.Two patients developed local complications.The cost for surgery and hospitalization was 7235.7 RMB yuan,which was 17.5% less than that in the IPLC group.At follow-up,94% of the patients were satisfied with the surgery and short hospital stay.CONCLUSIONS:OPLC can effectively treat a variety of benign,non-acute gallbladder diseases with shortened waiting time and postoperative hospital stay.OPLC benefits the hospital with a rapid bed turnover rate,and reduces cost for surgery and hospitalization. | Ji, Wu Ding, Kai Li, Ling-Tang Wang, Dan Li, Ning Li, Jie-Shou | 2010 | Hepatobiliary & Pancreatic Diseases International2010，9，1： | 9 |
| 9 | Laparoscopic vs open extended right hemicolectomy for colon cancer显示文摘AIM:To evaluate the feasibility,safety,and oncologic outcomes of laparoscopic extended right hemicolectomy(LERH)for colon cancer.METHODS:Since its establishment in 2009,the Southern Chinese Laparoscopic Colorectal Surgical Study(SCLCSS)group has been dedicated to promoting patients’quality of life through minimally invasive surgery.The multicenter database was launched by combining existing datasets from members of the SCLCSS group.The study enrolled 220 consecutive patients who were recorded in the multicenter retrospective database and underwent either LERH(n=119)or open extended right hemicolectomy(OERH)(n=101)for colon cancer.Clinical characteristics,surgical outcomes,and oncologic outcomes were compared between the two groups.RESULTS:There were no significant differences in terms of age,gender,body mass index(BMI),history of previous abdominal surgery,tumor location,and tumor stage between the two groups.The blood loss was lower in the LERH group than in the OERH group[100(100-200)mL vs 150(100-200)mL,P<0.0001].The LERH group was associated with earlier first flatus(2.7±1.0 d vs 3.2±0.9 d,P<0.0001)and resumption of liquid diet(3.6±1.0 d vs 4.2±1.0 d,P<0.0001)compared to the OERH group.The postoperative hospital stay was significantly shorter in the LERH group(11.4±4.7 d vs 12.8±5.6 d,P=0.009)than in the OERH group.The complication rate was 11.8%and17.6%in the LERH and OERH groups,respectively(P=0.215).Both 3-year overall survival[LERH(92.0%)vs OERH(84.4%),P=0.209]and 3-year disease-free survival[LERH(84.6%)vs OERH(76.6%),P=0.191]were comparable between the two groups.CONCLUSION:LERH with D3 lymphadenectomy for colon cancer is a technically feasible and safe procedure,yielding comparable short-term oncologic outcomes to those of open surgery. | Li-Ying Zhao Pan Chi Wei-Xing Ding Shun-Rong Huang Si-Fen Zhang Kai Pan Yan-Feng Hu Hao Liu Guo-Xin Li | 2014 | World Journal of Gastroenterology2014，20，24： | 9 |
| 10 | Development of nutritious rice with high zinc/selenium and low cadmium in grains through QTL pyramiding显示文摘Enriching zinc(Zn) and selenium(Se) levels,while reducing cadmium(Cd) concentration in rice grains is of great benefit for human diet and health.Large natural variations in grain Zn, Se, and Cd concentrations in different rice accessions enable Zn/Sebiofortification and Cd-minimization through molecular breeding. Here, we report the development of new elite varieties by pyramiding major quantitative trait loci(QTLs) that significantly contribute to high Zn/Se and low Cd accumulation in grains. A chromosome segment substitution line CSSLGCC7 with the PA64s-derived GCC7 allele in the 93-11 background, exhibited steadily higher Mn and lower Cd concentrations in grains than those of 93-11. This elite chromosome segment substitution line(CSSL) was used as the core breeding material to cross with CSSLs harboring other major QTLs for essential mineral elements, especially CSSLGZC6 for grain Zn concentration and CSSLGSC5 for grain Se concentration. The CSSLGCC7+GZC6 and CSSLGCC7+GSC5 exhibited lower Cd concentration with higher Zn and Se concentrations in grains, respectively. Our study thus provides elite materials for rice breeding targeting high Zn/Se and low Cd concentrations in grains. | Chaolei Liu Shilin Ding Anpeng Zhang Kai Hong Hongzhen Jiang Shenglong Yang Banpu Ruan Bin Zhang Guojun Dong Longbiao Guo Dali Zeng Qian Qian Zhenyu Gao | 2020 | Journal of Integrative Plant Biology2020，62，3： | 7 |
| 11 | Attribute-based supervised deep learning model for action recognition显示文摘 | Kai CHEN Guiguang DING Jungong HAN | 2017 | Frontiers of Computer Science2017，11，2： | 7 |
| 12 | Hepatitis B virus X protein represses miRNA-148a to enhance tumorigenesis显示文摘 | Xu Xiaojie Fan Zhongyi Kang Lei Han Juqiang Jiang Chengying Zheng Xiaofei Zhu Ziman Jiao Huabo Lin Jing Jiang Kai Ding Lihua Zhang Hao Cheng Long Fu Hanjiang Song Yi Jiang Ying Liu Jiahong Wang Rongfu Du Nan Ye Qinong | 2013 | Journal of Clinical Investigation2013，，2： | 7 |
| 13 | In situ decomposition of metal-organic frameworks into ultrathin nanosheets for the oxygen evolution reaction显示文摘氧进化反应(OER ) 是一个枢轴的过程为切开水并且包含氧电极的许多另外的精力技术。此处,新合成策略被建议准备 OER 催化剂基于一简单在共同基于的醋酸盐氢氧化物的 situ 分解还灵活金属器官的框架(MOF ) 。这个过程与优秀部件可控制性允许各种各样的 2D 氢氧化物 ultrathin nanosheets (UNS ) 的直接制造。同样获得的共同基于的氢氧化物 UNS 由于众多的活跃地点的暴露为 OER 表明优异催化活动。特别地, CoNi 氢氧化物 UNS 展出低过电位() 在 10 和 100 妈的当前的密度的 324 和 372 mV ? 沬? | Kai He Zhen Cao Ruirui Liu Ya Miao Yi Ding | 2016 | Nano Research2016，9，6： | 7 |
| 14 | Dosage effect of multiple genes accounts for multisystem disorder of myotonic dystrophy type 1显示文摘Multisystem manifestations in myotonic dystrophy type 1(DM1)may be due to dosage reduction in multiple genes induced by aberrant expansion of CTG repeats in DMPK,including DMPK,its neighboring genes(SIX5 or DMWD)and downstream MBNLh However,direct evidence is lacking.Here,we develop a new strategy to generate mice carrying multigene heterozygous mutations to mimic dosage reduction in one step by injection of haploid embryonic stem cells with mutant Dmpk,Six5 and Mbnll into oocytes.The triple heterozygous mutant mice exhibit adult-onset DM1 phenotypes.With the additional mutation in Dmwd,the quadruple heterozygous mutant mice recapitulate many major manifestations in congenital DM1.Moreover,muscle stem cells in both models display reduced sternness,providing a unique model for screening small molecules for treatment of DM1.Our results suggest that the complex symptoms of DM1 result from the reduced dosage of multiple genes. | Qi Yin Hongye Wang Na Li Yifu Ding Zhenfei Xie Lifang Jin Yan Li Qiong Wang Xinyi Liu Liuqing Xu Qing Li Yongjian Ma Yanbo Cheng Kai Wang Cuiqing Zhong Qian Yu Wei Tang Wanjin Chen Wenjun Yang Fan Zhang Chen Ding Lan Bao Bin Zhou Ping Hu Jinsong Li | 2020 | Cell Research2020，30，2： | 7 |
| 15 | In vivo flow cytometry reveals a circadian rhythm of circulating tumor cells显示文摘Circulating tumor cells(CTCs)is an established biomarker of cancer metastasis.The circulation dynamics of CTCs are important for understanding the mechanisms underlying tumor cell dissemination.Although studies have revealed that the circadian rhythm may disrupt the growth of tumors,it is generally unclear whether the circadian rhythm controls the release of CTCs.In clinical examinations,the current in vitro methods for detecting CTCs in blood samples are based on a fundamental assumption that CTC counts in the peripheral blood do not change significantly over time,which is being challenged by recent studies.Since it is not practical to draw blood from patients repeatedly,a feasible strategy to investigate the circadian rhythm of CTCs is to monitor them by in vivo detection methods.Fluoresce nee in vivo flow cytometry(IVFC)is a powerful optical technique that is able to detect fluoresce nt circulating cells directly in living animals in a noninvasive manner over a long period of time.In this study,we applied fluorescence IVFC to monitor CTCs noninvasively in an orthotopic mouse model of human prostate cancer.We observed that CTCs exhibited stochastic bursts over cancer progression.The probability of the bursting activity was higher at early stages than at late stages.We longitudinally monitored CTCs over a 24-h period,and our results revealed striking daily oscillations in CTC counts that peaked at the onset of the night(active phase for rodents),suggesting that the release of CTCs might be regulated by the circadian rhythm. | Xi Zhu Yuanzhen Suo Yuting Fu Fuli Zhang Nan Ding Kai Pang Chengying Xie Xiaofu Weng Meilu Tian Hao He Xunbin Wei | 2021 | Light(Science & Applications)2021，10，6： | 6 |
| 16 | Active generalized predictive control of turbine tip clearance for aero-engines显示文摘Active control of turbine blade tip clearance continues to be a concern in design and control of gas turbines.Ever increasing demands for improved effciency and higher operating temperatures require more stringent tolerances on turbine tip clearance.In this paper,a turbine tip clearance control apparatus and a model of turbine tip clearance are proposed; an implicit active generalized predictive control(GPC),with auto-regressive(AR) error modifcation and fuzzy adjustment on control horizon,is presented,as well as a quantitative analysis method of robust perturbation radius of the system.The active clearance control(ACC) of aero-engine turbine tip clearance is evaluated in a lapse-rate take-off transient,along with the comparative and quantitative analysis of the stability and robustness of the active tip clearance control system.The results show that the resultant active tip clearance control system with the improved GPC has favorable steadystate and dynamic performance and benefts of increased effciency,reduced specifc fuel consumption,and additional service life. | Peng Kai Fan Ding Yang Fan Fu Qiang Li Yong | 2013 | Chinese Journal of Aeronautics2013，26，5： | 6 |
| 17 | Suppressor of cytokine signaling 1 protects rat pancreatic islets from cytokine-induced apoptosis through Janus kinase/signal transducers and activators of transcription pathway显示文摘 | Sun Qi Xiang Ruo-lan Yang Yan-li Feng Kai Zhang Kui Ding Wen-yi | 2013 | Chinese Medical Journal2013，，21： | 6 |
| 18 | Emerging Flexible Thermally Conductive Films:Mechanism,Fabrication,Application显示文摘Effective thermal management is quite urgent for electronics owing to their ever-growing integration degree,operation frequency and power density,and the main strategy of thermal management is to remove excess energy from electronics to outside by thermal conductive materials.Compared to the conventional thermal management materials,flexible thermally conductive films with high in-plane thermal conductivity,as emerging candidates,have aroused greater interest in the last decade,which show great potential in thermal management applications of next-generation devices.However,a comprehensive review of flexible thermally conductive films is rarely reported.Thus,we review recent advances of both intrinsic polymer films and polymer-based composite films with ultrahigh in-plane thermal conductivity,with deep understandings of heat transfer mechanism,processing methods to enhance thermal conductivity,optimization strategies to reduce interface thermal resistance and their potential applications.Lastly,challenges and opportunities for the future development of flexible thermally conductive films are also discussed. | Chang‑Ping Feng Fang Wei Kai‑Yin Sun Yan Wang Hong‑Bo Lan Hong‑Jing Shang Fa‑Zhu Ding Lu Bai Jie Yang Wei Yang | 2022 | Nano-Micro Letters2022，14，8： | 6 |
| 19 | Research progress of the electrochemical impedance technique applied to the high-capacity lithium-ion battery显示文摘The world's energy system is changing dramatically.Li-ion battery,as a powerful and highly effective energy storage technique,is crucial to the new energy revolution for its continuously expanding application in electric vehicles and grids.Over the entire lifetime of these power batteries,it is essential to monitor their state of health not only for the predicted mileage and safety management of the running electric vehicles,but also for an'end-of-life'evaluation for their repurpose.Electrochemical impedance spectroscopy(EIS)has been widely used to diagnose the health state of batteries quickly and nondestructively.In this review,we have outlined the working principles of several electrochemical impedance techniques and further evaluated their application prospects to achieve the goal of nondestructive testing of battery health.EIS can scientifically and reasonably perform real-time monitoring and evaluation of electric vehicle power batteries in the future and play an important role in vehicle safety and battery gradient utilization. | Li-fan Wang Meng-meng Geng Xia-nan Ding Chen Fang Yu Zhang Shan-shan Shi Yong Zheng Kai Yang Chun Zhan Xin-dong Wang | 2021 | International Journal of Minerals,Metallurgy and Materials2021，28，4： | 6 |
| 20 | Self-Healing,Self-Adhesive and Stable Organohydrogel-Based Stretchable Oxygen Sensor with High Performance at Room Temperature显示文摘With the advent of the 5G era and the rise of the Internet of Things,various sensors have received unprecedented attention,especially wearable and stretchable sensors in the healthcare field.Here,a stretchable,self-healable,self-adhesive,and room-temperature oxygen sensor with excellent repeatability,a full concentration detection range(0-100%),low theoretical limit of detection(5.7 ppm),high sensitivity(0.2%/ppm),good linearity,excellent temperature,and humidity tolerances is fabricated by using polyacrylamide-chitosan(PAM-CS)double network(DN)organohydrogel as a novel transducing material.The PAM-CS DN organohydrogel is transformed from the PAM-CS composite hydrogel using a facile soaking and solvent replacement strategy.Compared with the pristine hydrogel,the DN organohydrogel displays greatly enhanced mechanical strength,moisture retention,freezing resistance,and sensitivity to oxygen.Notably,applying the tensile strain improves both the sensitivity and response speed of the organohydrogel-based oxygen sensor.Furthermore,the response to the same concentration of oxygen before and after self-healing is basically the same.Importantly,we propose an electrochemical reaction mechanism to explain the positive current shift of the oxygen sensor and corroborate this sensing mechanism through rationally designed experiments.The organohydrogel oxygen sensor is used to monitor human respiration in real-time,verifying the feasibility of its practical application.This work provides ideas for fabricating more stretchable,self-healable,self-adhesive,and high-performance gas sensors using ion-conducting organohydrogels. | Yuning Liang Zixuan Wu Yaoming Wei Qiongling Ding Meital Zilberman Kai Tao Xi Xie Jin Wu | 2022 | Nano-Micro Letters2022，14，3： | 5 |
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