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A direct polymeric carbon nitride/tungsten oxide Z-scheme heterostructure for efficient photocatalytic hydrogen generation via reforming of plastics into value-added chemicals

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Rare Metals 2024年第8期43卷 3771-3783页

作者： Rui-Zhe Wang Zhi Lin Yi-Qing Wang Kai-ni zhang Ge-Hong zhang Jie zhang Samuel SMao Shao-Hua Shen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power EngineeringXi'an Jiaotong UniversityXi'an 710049China School of Civil and Architecture Engineering Xi'an Technological UniversityXi'an 710021China Department of Mechanical Engineering University of California at BerkeleyBerkeleyCA94720USA

To promote charge transfer and separation for efficient photocatalysis,a direct Z-scheme heterostructure was constructed by coupling polymeric carbon nitride(PCN) and WO_(3).Interestingly,the obtained PCN/WO_(3)Z-scheme heterostructure could photocataly tic ally produce hydrogen and value-added chemicals(e.g.,formate and acetate) by reforming of plastic polylactic acid(PLA) in alkaline aqueous *** optimizing WO_(3) contents and reaction conditions,the obtained PCN/WO_(3)heterostructure exhibits much increased photocatalytic activity for PLA photoreforming under visible light,with hydrogen evolution rate reaching 402.90 μmol·g~(-1)·h~(-1),which is 3.5 times that of *** is revealed that the Z-scheme charge transfer between PCN and WO_(3) mainly contributes to the promoted charge separation and thus the improved photocatalytic ***,with h+and·OH experimentally evidenced as the predominant active species,a possible reaction pathway for the reforming of PLA into value-added chemicals(e.g.,formate and acetate)over PCN/WO_(3) Z-scheme heterostructure is cleared by monitoring the reaction intermediates and *** work paves a carbon neutrality and scalable route toward the synergistical production of hydrogen and value-added chemicals by utilizing and recycling plastic waste.

关键词： Carbon nitride Z-scheme heterojunction Plastic waste conversion Photocatalytic H_(2)production Value-added chemicals

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Response mechanism of soil microorganisms to simulated precipitation in the source wetland of Qinghai Lake

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Ecological Processes 2024年第2期 61-71页

作者： Xinye Wang ni zhang Kelong Chen Tiexi Chen Desheng Qi Yuanxi Ma School of Geographical Sciences Qinghai Normal University National Positioning Observation and Research Station of Qinghai Lake Wetland Ecosystem in Qinghai National Forestry and Grassland Administration Key Laboratory of Tibetan Plateau Land Surface Processes and Ecological Conservation(Ministry of Education) Qinghai Normal University School of Geographical Sciences Nanjing University of Information Science and Technology Qinghai Provincial land spatial Planning Research Institute

Background Changes in precipitation patterns crucially impact soil microbial communities, and the ecosystem in Qinghai-Tibet Plateau(QTP) is highly vulnerable to climate change. However, we do not fully understand how soil microbial communities in the source wetlands of QTP respond to changes in precipitation. In this study, we employed advanced techniques such as high-throughput sequencing and metabolomics to investigate how soil microbial communities in a source wetland of Qinghai Lake respond to changes in precipitation after quadrennial precipitation *** Our findings showed that the predominant microbiota in the source wetland was Proteobacteria. Interestingly, alterations in precipitation levels, whether increased or reduced, did not significantly impact the diversity or functional groups of the microbial community. However, the structure of the microbial community did respond notably to changes in precipitation, leading to shifts in the relative abundance of Spirochaetes and Treponema. A notable finding was that reduced precipitation levels(– 25% and-50%) and mild increases in precipitation(25%) within the region contributed to increased soil carbon content. However, this effect ceased to manifest when precipitation increased by 50%. Additionally, the reduction in precipitation prompted the release of soil metabolites like syringic acid and aldosterone, while enhanced precipitation resulted in a decrease in aldosterone *** Precipitation changes altered the relative abundance of soil microbial communities and metabolites, which was conducive to increasing carbon storage in this alpine wetland.

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Inducing mitochondriopathy-like damages by transformable nucleopeptide nanoparticles for targeted therapy of bladder cancer

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National Science Review 2024年第4期11卷 216-227页

作者： Da-Yong Hou ni-Yuan zhang Lu Wang Mei-Yu Lv Xiang-Peng Li Peng zhang Yue-Ze Wang Lei Shen Xiu-Hai Wu Bo Fu Peng-Yu Guo Zi-Qi Wang Dong-Bing Cheng Hao Wang Wanhai Xu NHC and CAMS Key Laboratory of Molecular Probe and Targeted Theranostics Heilongjiang Key Laboratory of Scientific Research in Urology Harbin Medical University Department of Urology Harbin Medical University Cancer Hospital CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology(NCNST) School of Chemistry Chemical Engineering & Life Science Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases Wuhan University of Technology

Mitochondriopathy inspired adenosine triphosphate(ATP) depletions have been recognized as a powerful way for controlling tumor growth. Nevertheless, selective sequestration or exhaustion of ATP under complex biological environments remains a prodigious challenge. Harnessing the advantages of in vivo self-assembled nanomaterials, we designed an Intracellular ATP Sequestration(IAS) system to specifically construct nanofibrous nanostructures on the surface of tumor nuclei with exposed ATP binding sites,leading to highly efficient suppression of bladder cancer by induction of mitochondriopathy-like ***, the reported transformable nucleopeptide(NLS-FF-T) self-assembled into nuclear-targeted nanoparticles with ATP binding sites encapsulated inside under aqueous conditions. By interaction with KPNA2, the NLS-FF-T transformed into a nanofibrous-based ATP trapper on the surface of tumor nuclei,which prevented the production of intracellular energy. As a result, multiple bladder tumor cell lines(T24,EJ and RT-112) revealed that the half-maximal inhibitory concentration(IC50) of NLS-FF-T was reduced by approximately 4-fold when compared to NLS-T. Following intravenous administration, NLS-FF-T was found to be dose-dependently accumulated at the tumor site of T24 xenograft mice. More significantly, this IAS system exhibited an extremely antitumor efficacy according to the deterioration of T24 tumors and simultaneously prolonged the overall survival of T24 orthotopic xenograft mice. Together, our findings clearly demonstrated the therapeutic advantages of intracellular ATP sequestration-induced mitochondriopathy-like damages, which provides a potential treatment strategy for malignancies.

关键词： self-assembly nucleopeptide nanomaterial bladder cancer mitochondriopathy

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Factors influencing willingness to participate in ophthalmic clinical trials and strategies for effective recruitment

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International Journal of Ophthalmology(English edition) 2024年第1期17卷 157-163页

作者： Jia-En Liang Meng-Yin Liang En-En zhang Yu-Ying Peng Ling-Ling Chen Jia-Yu Deng Ting Lin Jun Fu Jia-ni zhang Shao-Li Li Fei Li Hui-Ming Xaio Wen-Min Huang Yu-Hong Liu State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangdong Provincial Key Laboratory of Ophthalmology and Visual ScienceGuangdong Provincial Clinical Research Center for Ocular DiseasesGuangzhou 510060Guangdong ProvinceChina

AIM:To explore the factors influencing individuals’willingness to participate in ophthalmic clinical ***:A questionnaire survey was conducted from January to April 2021 among patients and their family members at Zhongshan Ophthalmic Center,Sun Yat-sen University,in Guangzhou,*** survey gathered data on respondents’willingness,demographic and socioeconomic profiles,as well as their reasons and concerns regarding engagement in clinical ***:Of the 1078 residents surveyed(mean age 31.2±13.1y;65.8%females)in Guangzhou,749(69.5%)expressed a willingness to participate in future ophthalmic clinical *** characteristics associated with greater willingness included a younger age,lower annual income,higher education,prior participation experience,previous ophthalmic treatment,and a better understanding of clinical *** the exception of age,these characteristics were significantly linked to a higher *** primary barrier to participation,expressed by 64.8%of those willing and 54.4%of those unwilling,was“Uncertain efficacy”.In terms of motivations,the willing group ranked“Better therapeutic benefits”(35.0%),“Professional monitoring”(34.3%),and“Trust in healthcare professionals”(33.1%)as their top three reasons,whereas the unwilling participants indicated“Full comprehension of the protocol”(46.2%)as the key ***:This study reveals a substantial willingness to participate in ophthalmic clinical trials and demonstrates the predictive role of demographic and socioeconomic *** in motivators and concerns between willing and unwilling participants highlight the significance of tailored recruitment ***,the need for and trust in healthcare professionals stand out as powerful motivations,underscoring the importance of enhancing physician-patient relationships,adopting patient-centered communication approaches,and addressing individualized needs to improve accrual rates.

关键词： participation willingness recruitment strategy ophthalmic clinical trial

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Highly efficient discovery of the covalent Minhibitors from crude Pu-erh tea by integrating biochemical and chemoproteomic approaches

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Food Science and Human Wellness 2024年

作者： Guang-Hao Zhu Ya-ni zhang Sheng-Lan Qi Jian-Rong Xu Yuan Xiong Zhao-Qin zhang Xi-Xiang Chen Yuan-Yuan Xie Xiao-Qing Guan Wei-Dong zhang Wei Liu Guang-Bo Ge Shanghai Frontiers Science Center of TCM Chemical Biology Institute of Interdisciplinary Integrative Medicine Research Shanghai University of Traditional Chinese Medicine Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine

The main proteases (Mpros) are hydrolases playing essential roles in the replication of β-coronaviruses including SARS-CoV-2. Herein， a highly efficient strategy was developed for discovering the Mproinactivators from crude plant extract integrating target-based biochemical assay and chemoproteomic approaches. Firstly， Pu-erh tea was found to potently suppress SARS-CoV-2 Mproin a time-dependent manner. Next， global chemical analysis coupling with peptide-modification profiling were used to identify the cysteine-modified constituents in Pu-erh tea. The results suggested that seven constituents in Pu-erh tea could modify SARS-CoV-2 Mpro， which turned out that epigallocatechin， gallocatechin and gallic acid were the most efficacious Mproinactivators. Further investigations demonstrated that epigallocatechin and gallocatechin could inactivate SARS-CoV-2 Mprovia blocking the formation of the homodimers. Collectively， this work proposed a novel and practical strategy for highly efficient discovery of time-dependent inhibitors of SARS-CoV-2 Mprofrom plant extracts， while three constituents in Pu-erh tea have emerged as robust SARS-CoV-2 Mproinactivators.

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Genomic data and ecological niche modeling reveal an unusually slow rate of molecular evolution in the Cretaceous Eupteleaceae

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Science China(Life Sciences) 2024年第4期67卷 803-816页

作者： Kun-Li Xiang Sheng-Dan Wu Lian Lian Wen-Chuang He Dan Peng Huan-Wen Peng Xiao-ni zhang Hong-Lei Li Jia-Yu Xue Hong-Yan Shan Gui-Xia Xu Yang Liu Zhi-Qiang Wu Wei Wang State Key Laboratory of Plant Diversity and Specialty Crops Institute of BotanyChinese Academy of SciencesBeijing 100093China Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureKey Laboratory of Synthetic BiologyLaboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China China National Botanical Garden Beijing 100093China State Key Laboratory of Grassland Agro-Ecosystems and College of Ecology Lanzhou UniversityLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China College of Landscape Architecture and Life Science/Institute of Special Plants Chongqing University of Arts and SciencesChongqing 402160China College of Horticulture Academy for Advanced Interdisciplinary StudiesNanjing Agricultural UniversityNanjing 210095China Fairylake Botanical Garden Shenzhen&Chinese Academy of SciencesShenzhen 518004China

Living fossils are evidence of long-term sustained ecological ***,whether living fossils have little molecular changes remains poorly known,particularly in ***,we have introduced a novel method that integrates phylogenomic,comparative genomic,and ecological niche modeling analyses to investigate the rate of molecular evolution of Eupteleaceae,a Cretaceous relict angiosperm family endemic to East *** assembled a high-quality chromosome-level nuclear genome,and the chloroplast and mitochondrial genomes of a member of Eupteleaceae(Euptelea pleiosperma).Our results show that Eupteleaceae is most basal in Ranunculales,the earliest-diverging order in eudicots,and shares an ancient whole-genome duplication event with the other *** document that Eupteleaceae has the slowest rate of molecular changes in the observed *** unusually low rate of molecular evolution of Eupteleaceae across all three independent inherited genomes and genes within each of the three genomes is in association with its conserved genome architecture,ancestral woody habit,and conserved niche *** findings reveal the evolution and adaptation of living fossil plants through large-scale environmental change and also provide new insights into early eudicot diversification.

关键词： conservation genomics eudicots evolutionary rates niche conservatism phylogenomics

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Autophagy plays a pro-apoptotic role in arsenic trioxide-induced cell death of liver cancer

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Journal of Integrative Medicine 2024年第3期22卷 295-302页

作者： Zhengting Deng Shufang Liang Guokai Huang Yuqian Wang Xiaoyu Tu Yani zhang Shu Li Tao Liu Binbin Cheng Taizhou Hospital of Traditional Chinese Medicine Nanjing University of Chinese MedicineTaizhou 225300Jiangsu ProvinceChina Oncology Department of Traditional Chinese Medicine The First Affiliated Hospital of Naval Medical UniversityShanghai 200433China School of Traditional Chinese Medicine Nanjing University of Chinese MedicineNanjing 210023Jiangsu ProvinceChina Department of Gastroenterology Baoshan Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghai 201900China

Objective: The effects of arsenic trioxide(As2O3) on hepatocellular carcinoma have been documented widely. Autophagy plays dual roles in the survival and death of cancer cells. Therefore, we investigated the exact role of autophagy in As2O3-induced apoptosis in liver cancer ***: The viability of hepatoma cells was determined using the MTT assay with or without fetal bovine serum. The rate of apoptosis in liver cancer cells treated with As2O3was evaluated using flow cytometry, Hoechst 33258 staining, and TUNEL assays. The rate of autophagy among liver cancer cells treated with As2O3was detected using immunofluorescence, Western blot assay and transmission electron ***: Upon treatment with As2O3, the viability of HepG2 and SMMC-7721 cells was decreased in a time-and dose-dependent manner. The apoptosis rates of both liver cancer cell lines increased with the concentration of As2O3, as shown by flow cytometry. Apoptosis in liver cancer cells treated with As2O3was also shown by the activation of the caspase cascade and the regulation of Bcl-2/Bax ***, As2O3treatment induced autophagy in liver cancer cells;this finding was supported by Western blot, immunofluorescence of LC3-II and beclin 1, and transmission electron microscopy. In liver cancer cells, As2O3inhibited the phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin(PI3K/AKT/mTOR) signal pathway that plays a vital role in both apoptosis and autophagy. The PI3K activator SC-79 partially reversed As2O3-induced autophagy and apoptosis. Furthermore, inhibiting autophagy with 3-methyladenine partially reversed the negative effects of As2O3on cell *** starvation increased autophagy and amplified the effect of As2O3on cell ***: As2O3induces apoptosis and autophagy in liver cancer cells. Autophagy induced by As2O3may have a proapoptotic effect that helps to reduce the viability of liver cancer cells. This study provides novel insights

关键词： Apoptosis Arsenic trioxide Autophagy Primary liver cancer

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Ⅲ型急性共同性内斜视的发病机制及治疗研究进展

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眼科新进展 2024年第1期44卷 66-70页

作者：谢昊彭惠张旎重庆医科大学附属第一医院眼科重庆市400042

Ⅲ型急性共同性内斜视多发生于青春期后的近视患者中。这种类型的斜视具体发病机制尚不明确,可能与近视、集合-发散失衡、过度调节、内隐斜的失代偿、异常的解剖结构及视觉中枢功能异常有关,目前的主要治疗方法包括手术、注射肉毒素、... 详细信息

Ⅲ型急性共同性内斜视多发生于青春期后的近视患者中。这种类型的斜视具体发病机制尚不明确,可能与近视、集合-发散失衡、过度调节、内隐斜的失代偿、异常的解剖结构及视觉中枢功能异常有关,目前的主要治疗方法包括手术、注射肉毒素、配戴三棱镜、视功能训练,本文主要就Ⅲ型急性共同性内斜视的发病机制和治疗进展展开综述。

关键词： Ⅲ型急性共同性内斜视近视复视视觉中枢

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重返“物”的言说现场——论气氛美学中“物”的自我显现

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三峡大学学报（人文社会科学版） 2024年第4期46卷 77-81,115页

作者：张旎湖北文理学院文学与传媒学院湖北襄阳441053

“传统美学”在二元对立视域下将“物”视作主观意志投掷的产物,古典“物之本体论”时期在凸显“物”的同时也造成“物”本身的失语。德国当代美学家格诺特·波默通过新现象学建构的“气氛美学”,在关注“气氛”的居间性时注意到处于被... 详细信息

“传统美学”在二元对立视域下将“物”视作主观意志投掷的产物,古典“物之本体论”时期在凸显“物”的同时也造成“物”本身的失语。德国当代美学家格诺特·波默通过新现象学建构的“气氛美学”,在关注“气氛”的居间性时注意到处于被动和封闭地位之“物”。他的气氛美学试图探索出一条适于“物”自我显现的言说路径。“物”的自我显现由气氛美学之“物”,“物”自我显现的方式及“物”的自我显现场域三个方面重返“物”的言说现场,抵达“物”的独立之境。气氛美学对“物”的诠释可以视为对“物的转向”思潮的补充,以及对环境美学去主体中心化的回应。同时,它对“物”的理解也于当今虚拟支配现实的环境中为“物”的实在性保留一席之地。

关键词：格诺特·波默气氛美学物新现象学

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DBL视域下的儿童编程教学模式及其效果验证:一项基于设计的研究

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现代教育技术 2024年第7期34卷 81-90页

作者：张妮幸大惠贵州师范大学教育学院贵州贵阳550025

基于设计的学习(Design-Based Learning,DBL)起源于学习科学领域,强调迭代设计与开发,与儿童编程教学的契合度较高,可为儿童编程教学模式的革新与学生问题解决能力的提升提供依据。基于此,文章首先构建了DBL视域下的儿童编程教学模式雏... 详细信息

基于设计的学习(Design-Based Learning,DBL)起源于学习科学领域,强调迭代设计与开发,与儿童编程教学的契合度较高,可为儿童编程教学模式的革新与学生问题解决能力的提升提供依据。基于此,文章首先构建了DBL视域下的儿童编程教学模式雏形,随后运用基于设计的研究方法进行两轮迭代实验,对模式雏形进行优化后得到DBL视域下的儿童编程教学模式。最后,文章利用准实验研究法检验此模式的有效性,结果表明:DBL视域下的儿童编程教学效果优于传统编程教学,且DBL视域下的儿童编程教学与传统编程教学在提升学生问题解决能力方面存在显著差异;DBL视域下的儿童编程教学模式有助于学生形成问题解决思路并学会反思,在教学实践中展现出了良好的适应性。文章以设计为主线,助推儿童编程教学模式革新,可为有效提升儿童的问题解决能力提供有价值的理论指导和实践参考。

关键词：儿童编程教学 DBL DBR 教学模式问题解决能力

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