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| 1 | MXenes for Solar Cells显示文摘Application of two-dimensional MXene materials in photovoltaics has attracted increasing attention since the first report in 2018 due to their metallic electrical conductivity,high carrier mobility,excellent transparency,tunable work function and superior mechanical property.In this review,all developments and applications of the Ti3C2Tx MXene(here,it is noteworthy that there are still no reports on other MXenes’application in photovoltaics by far)as additive,electrode and hole/electron transport layer in solar cells are detailedly summarized,and meanwhile,the problems existing in the related studies are also discussed.In view of these problems,some suggestions are given for pushing exploration of the MXenes’application in solar cells.It is believed that this review can provide a comprehensive and deep understanding into the research status and,moreover,helps widen a new situation for the study of MXenes in photovoltaics. | Lujie Yin Yingtao Li Xincheng Yao Yanzhou Wang Lin Jia Qiming Liu Junshuai Li Yali Li Deyan He | 2021 | Nano-Micro Letters2021，13，5： | 2 |
| 2 | Selecting small molecule DNA aptamers with significant conformational changes for constructing transcriptional switches and biosensors显示文摘Small molecule aptamers discovered by traditional selection methods usually lack conformational changes upon target binding.This limits the use of aptamers as molecular probes for small molecule detection and regulatory elements of genetic circuits.Here,we report a new method called capture and in vitro transcription-systematic evolution of ligands by exponential enrichment(CIVT-SELEX)to select DNA aptamers that can not only bind to small molecule ligands but also undergo significant conformational changes.Through this method,we select a structure-switching aptamer of uridine-5′-diphosphate(UDP).Taking advantage of its conformational changes,we first construct a UDP-responsive transcriptional switch by inserting the aptamer in a genetic circuit and demonstrate that it can respond to the addition of UDP and regulate the transcription of downstream genes.We also build a UDP aptamer-based biosensor that can be used for active glycosyltransferase screening.We believe this method can provide a universal platform for selecting small molecule aptamers with conformational changes and expand the use of aptamers in small molecule detection and genetic regulation. | Shaobin Guo Jingjing Lin Lujie Lin Wen Xu Yan Guo Zipeng Xu Chunhua Lu Xianai Shi Lanlan Chen Huanghao Yang | 2023 | Science China Chemistry2023，66，5： | 0 |
| 3 | A survey of emergency blunt urethral injury management in China:Reality versus guidelines显示文摘Background:Although urethral trauma may lead to serious consequences if mismanaged,treatment concepts are inconsistent.We designed a survey to investigate the current diagnosis and management of emergency blunt urethral trauma to aid future dissemination of relevant concepts.Methods:A 15‐item anonymous questionnaire was distributed via an online platform.It addressed items such as the cognition of how to diagnose of urethral trauma,optimal emergency management of a urethral trauma patient,and attitude towards early realignment for pelvic fracture urethral injuries.Results:Of 538 respondents,94.2%and 84.9%had received patients with straddle trauma urethral injuries or pelvic fracture urethral injuries,respectively,within the past year.In the emergency room,attempted urethral catheterization was the most selected examination method by respondents for diagnosis of both straddle injury(500/538)and pelvic fracture urethral injury(469/538).For patients with straddle injury,41.3%of respondents performed endoscopic realignment and 31.6%preferred suprapubic cystostomy.For hemodynamically stable patients with PFUI,42.2%of respondents preferred suprapubic cystostomy and 34.9%preferred endoscopic realignment.Most respondents felt favorably toward early realignment for pelvic fracture urethral injuries.After realignment,61.3%,24.5%,and 13.8%of respondents performed catheterization for 4,8,and 12 weeks,respectively.Further,54.6%of respondents believed catheter traction should be applied after realignment.Conclusion:Although the number of yearly emergency urethral trauma cases was small,the opinions and practices of most urologists were consistent with guidelines.However,the significance of retrograde urethrography was not fully understood,and some respondents had incorrect views on catheter traction after realignment. | Yubo Gu Changhao Hou Jiahao Lin Wei Yuan Zeyu Wang Xianjie Xiu Qiang Fu Lujie Song | 2023 | UroPrecision2023，1，2： | 0 |
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