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Distinguishing Protein Chemical Topologies Using Supercharging Ion Mobility Spectrometry-Mass Spectrometry

Angewandte Chemie 2023年第51期135卷

作者： Jiyeon Lee Dahye Im Yajie Liu Jing Fang Xibao Tian Minsu Kim Prof. Wen-Bin Zhang Prof. Jongcheol Seo Department of Chemistry Pohang University of Science and Technology (POSTECH) 77 Cheongam-ro Nam-gu Pohang 37673 Gyeonsangbuk-do (Republic of Korea Contribution: Data curation (lead) Formal analysis (equal) Visualization (lead) Writing - original draft (lead) Writing - review & editing (supporting) Contribution: Data curation (supporting) Formal analysis (equal) Visualization (supporting) Writing - original draft (supporting) Writing - review & editing (supporting) Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry & Physics of Ministry of Education Center for Soft Matter Science and Engineering College of Chemistry and Molecular Engineering Peking University Beijing 100871 P. R. China Contribution: Resources (equal) Contribution: Data curation (supporting) Validation (supporting) Contribution: Conceptualization (equal) Funding acquisition (equal) Investigation (equal) Project administration (supporting) Writing - review & editing (equal) Contribution: Conceptualization (equal) Funding acquisition (equal) Investigation (lead) Project administration (lead) Validation (lead) Writing - review & editing (lead)

A technique combining ion mobility spectrometry-mass spectrometry (IMS-MS) and supercharging electrospray ionization (ESI) has been demonstrated to differentiate protein chemical topology effectively. Incorporating as many charges as possible into proteins via supercharging ESI allows the protein chains to be largely unfolded and stretched, revealing their hidden chemical topology. Different chemical topologies result in differing geometrical sizes of the unfolded proteins due to constraints in torsional rotations in cyclic domains. By introducing new topological indices, such as the chain-length-normalized collision cross-section (CCS) and the maximum charge state ( z M ) in the extensively unfolded state, we were able to successfully differentiate various protein chemical topologies, including linear chains, ring-containing topologies (lasso, tadpole, multicyclics, etc.), and mechanically interlocked rings, like catenanes.

关键词： Mass Spectrometry Protein engineering Proteins

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Spectral Energy Distributions in Three Deep-Drilling Fields of the Vera C. Rubin Observatory Legacy Survey of Space and Time: Source Classification and Galaxy Properties

arXiv

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arXiv 2022年

作者： Zou, Fan Brandt, W.N. Chen, Chien-Ting Leja, Joel Ni, Qingling Yan, Wei Yang, Guang Zhu, Shifu Luo, Bin Nyland, Kristina Vito, Fabio Xue, Yongquan Department of Astronomy and Astrophysics 525 Davey Lab The Pennsylvania State University University ParkPA16802 United States Institute for Gravitation and the Cosmos The Pennsylvania State University University ParkPA16802 United States Department of Physics 104 Davey Laboratory The Pennsylvania State University University ParkPA16802 United States Marshall Space Flight Center HuntsvilleAL35811 United States Science and Technology Institute Universities Space Research Association HuntsvilleAL35805 United States Institute for Computational and Data Sciences The Pennsylvania State University University ParkPA16802 United States Institute for Astronomy University of Edinburgh Royal Observatory EdinburghEH9 3HJ United Kingdom Department of Physics and Astronomy Texas A&M University College StationTX77843-4242 United States George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy Texas A&M University College StationTX77843-4242 United States School of Astronomy and Space Science Nanjing University Jiangsu Nanjing210093 China Key Laboratory of Modern Astronomy and Astrophysics Nanjing University Ministry of Education Nanjing210093 China U.S. Naval Research Laboratory 4555 Overlook Ave SW WashingtonDC20375 United States Scuola Normale Superiore Piazza dei Cavalieri 7 Pisa56126 Italy INAF - Osservatorio di Astrofisica e Scienza dello Spazio di Bologna Via Gobetti 93/3 BolognaI-40129 Italy CAS Key Laboratory for Research in Galaxies and Cosmology Department of Astronomy University of Science and Technology of China Hefei230026 China School of Astronomy and Space Sciences University of Science and Technology of China Hefei230026 China

W-CDF-S, ELAIS-S1, and XMM-LSS will be three Deep-Drilling Fields (DDFs) of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), but their extensive multi-wavelength data have not been fully utilized as done in the COSMOS field, another LSST DDF. To prepare for future science, we fit source spectral energy distributions (SEDs) from X-ray to far-infrared in these three fields mainly to derive galaxy stellar masses and star-formation rates. We use CIGALE v2022.0, a code that has been regularly developed and evaluated, for the SED fitting. Our catalog includes 0.8 million sources covering 4.9 deg2 in W-CDF-S, 0.8 million sources covering 3.4 deg2 in ELAIS-S1, and 1.2 million sources covering 4.9 deg2 in XMM-LSS. Besides fitting normal galaxies, we also select candidates that may host active galactic nuclei (AGNs) or are experiencing recent star-formation variations and use models specifically designed for these sources to fit their SEDs;this increases the utility of our catalog for various projects in the future. We calibrate our measurements by comparison with those in well-studied smaller regions and briefly discuss the implications of our results. We also perform detailed tests of the completeness and purity of SED-selected AGNs. Our data can be retrieved from a public website. Copyright © 2022, The Authors. All rights reserved.

关键词： Surveys

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In Situ Polymerized 1,3-Dioxolane Electrolyte for Integrated Solid-State Lithium Batteries

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Angewandte Chemie 2023年第12期135卷

作者： Ye Qian Mi Wei Deng Chaohui He Prof. Dr. Osman Eksik Yi Ping Zheng De Kun Yao Dr. Xian Bin Liu Yan Hong Yin Ye Sheng Li Prof. Dr. Bao Yu Xia Prof. Dr. Zi Ping Wu Ganzhou Key Laboratory of Advanced Metals and Functional Materials Faculty of Materials Metallurgy and Chemistry Jiangxi University of Science and Technology Ganzhou 341000 China Contribution: Data curation (lead) Contribution: Formal analysis (lead) Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service Failure Wuhan National Laboratory for Optoelectronics School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 China Institute of Nanotechnology Gebze Technical University Gebze 41400 Turkey Contribution: Investigation (equal) Contribution: Methodology (lead) Contribution: Supervision (equal) Writing - original draft (lead) Contribution: Resources (lead) Contribution: Conceptualization (lead) Supervision (lead) Visualization (lead) Writing - review & editing (equal) Contribution: Project administration (lead) Supervision (lead) Validation (lead) Writing - original draft (lead)

Solid-state lithium batteries are promising and safe energy storage devices for mobile electronics and electric vehicles. In this work, we report a facile in situ polymerization of 1,3-dioxolane electrolytes to fabricate integrated solid-state lithium batteries. The in situ polymerization and formation of solid-state dioxolane electrolytes on interconnected carbon nanotubes (CNTs) and active materials is the key to realizing a high-performance battery with excellent interfacial contact among CNTs, active materials and electrolytes. Therefore, the electrodes could be tightly integrated into batteries through the CNTs and electrolyte. Electrons/ions enable full access to active materials in the whole electrode. Electrodes with a low resistance of 4.5 Ω □ −1 and high lithium-ion diffusion efficiency of 2.5×10 −11 cm 2 s −1 can significantly improve the electrochemical kinetics. Subsequently, the batteries demonstrated high energy density, amazing charge/discharge rate and long cycle life.

关键词： Interface Lithium Battery Polymerization Solid-State Electrolyte

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An Activatable and Reversible Virus-Mimicking NIR-II Nanoprobe for Monitoring the Progression of Viral Encephalitis

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Angewandte Chemie 2022年第39期134卷

作者： Hua-Jie Chen Ying Qin Dr. Zhi-Gang Wang Lei Wang Prof. Dai-Wen Pang Prof. Dongbing Zhao Prof. Shu-Lin Liu Engineering Research Center of Nano-Geomaterials of Ministry of Education Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 430074 P. R. China Contribution: Conceptualization (lead) Data curation (lead) Formal analysis (lead) Methodology (lead) Writing - original draft (equal) State Key Laboratory of Medicinal Chemical Biology Frontiers Science Centre for New Organic Matter Tianjin Key Laboratory of Biosensing and Molecular Recognition Research Centre for Analytical Sciences College of Chemistry and School of Medicine Nankai University Tianjin 300071 P. R. China Contribution: Methodology (supporting) Resources (equal) Validation (equal) Contribution: Data curation (supporting) Funding acquisition (supporting) Investigation (supporting) Methodology (supporting) Supervision (supporting) Writing - original draft (supporting) Contribution: Methodology (supporting) Resources (supporting) Software (supporting) Contribution: Data curation (supporting) Resources (supporting) Contribution: Project administration (equal) Resources (equal) Supervision (lead) Writing - review & editing (equal) Contribution: Conceptualization (equal) Funding acquisition (lead) Project administration (lead) Supervision (lead) Validation (lead) Writing - original draft (lead) Writing - review & editing (equal)

Viral encephalitis is an inflammatory disease of the brain parenchyma and caused by various viral infections. In vivo monitoring of the progression of viral infections can aid accurate diagnosis of viral encephalitis and effective intervention. We developed an activatable and reversible virus-mimicking near-infrared II nanoprobe consisting of an Fe 2+ -coordinated, viral protein-decorated vesicle encapsulating PbS quantum dots with a 1300 nm fluorescence emission. The probe can cross the blood–brain barrier and monitor real-time changes in reactive oxygen and nitrogen species concentrations during viral infection by tuning the quenching level of quantum dots and regulating the fusion–fission behavior of vesicles via changes in Fe oxidation state. This switching strategy reduces background noise and improves detection sensitivity, making this nanoprobe a promising imaging agent for dynamic visualization of viral encephalitis and future clinical applications.

关键词： Bioimaging Quantum Dots Second Near-Infrared Window Viral Encephalitis Virus-Mimicking

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Changing life expectancy in European countries 1990–2021: a subanalysis of causes and risk factors from the Global Burden of Disease Study 2021

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The Lancet Public Health 2025年第3期10卷 e172-e188页

作者： Steel, Nicholas Bauer-Staeb, Clarissa Maria Mercedes Ford, John A. Abbafati, Cristiana Abdalla, Mohammed Altigani Abdelkader, Atef Abdi, Parsa Zuñiga, Roberto Ariel Abeldaño Abiodun, Olugbenga Olusola Abolhassani, Hassan Abu-Gharbieh, Eman Abukhadijah, Hana J. Abu-Zaid, Ahmed Addo, Isaac Yeboah Addolorato, Giovanni Adekanmbi, Victor Adetunji, Juliana Bunmi Adeyeoluwa, Temitayo Esther Agardh, Emilie E. Agyemang-Duah, Williams Ahmad, Danish Ahmed, Ayman Ahmed, Syed Anees Akinosoglou, Karolina Akkaif, Mohammed Ahmed Al Awaidy, Salah Al Hasan, Syed Mahfuz Al Zaabi, Omar Ali Mohammed Aldridge, Robert W. Algammal, Abdelazeem M. Al-Gheethi, Adel Ali Saeed Ali, Abid Ali, Mohammed Usman Ali, Syed Shujait Ali, Waad Alicandro, Gianfranco Alif, Sheikh Mohammad Al-Jumaily, Adel Allebeck, Peter Alrawashdeh, Ahmad Al-Rifai, Rami H. Alsabri, Mohammed A. Alshahrani, Najim Z. Aluh, Deborah Oyine Al-Wardat, Mohammad Al-Zyoud, Walid A. Amiri, Sohrab Anderlini, Deanna Andrei, Catalina Liliana Anil, Abhishek Anvari, Saeid Anyasodor, Anayochukwu Edward Appiah, Seth Christopher Yaw Aquilano, Michele Arabloo, Jalal Arafat, Mosab Areda, Demelash Aremu, Abdulfatai Armani, Keivan Armocida, Benedetta Ärnlöv, Johan Asaduzzaman, Muhammad Astell-Burt, Thomas Aujayeb, Avinash Ausloos, Marcel Azadnajafabad, Sina Aziz, Shahkaar Azzam, Ahmed Y. Babu, Giridhara Rathnaiah Badache, Andreea Corina Badiye, Ashish D. Bahramian, Saeed Baig, Atif Amin Baker, Jennifer L. Bansal, Hansi Bärnighausen, Till Winfried Barone, Mark Thomaz Ugliara Barrow, Amadou Barteit, Sandra Bashir, Shahid Bashiru, Hameed Akande Basso, João Diogo Bastan, Mohammad-Mahdi Basu, Sanjay Batra, Kavita Bauckneht, Matteo Baune, Bernhard T. Beghi, Massimiliano Beiranvand, Maryam Béjot, Yannick Bell, Michelle L. Bello, Olorunjuwon Omolaja Belo, Luis Beloukas, Apostolos Beneke, Alice A. Bettencourt, Paulo J.G. Bhagavathula, Akshaya Srikanth Bhala, Neeraj Bhaskar, Sonu Bisulli, Francesca Bjørge, Tone Bodunrin, Aadam Olalekan Carvajal, Alejandro Botero Bouaoud, Souad Brayne, Carol Brenner, H Department of Primary Care and Public Health University of East Anglia Norwich United Kingdom Office for Health Improvement and Disparities Department of Health and Social Care London United Kingdom Department of Legal and Economic Studies La Sapienza University Rome Italy Rome Italy Hull York Medical School University of Hull Hull United Kingdom Department of Mathematics and Sciences Ajman University Ajman United Arab Emirates Department of Medicine Memorial University St. John's NL Canada Postgraduate Department University of Sierra Sur Miahuatlan de Porfirio Diaz Mexico Yhteiskuntadatatieteen keskus (Centre for Social Data Science) Helsinki Finland Department of Internal Medicine Federal Medical Centre Abuja Nigeria Research Center for Immunodeficiencies Tehran University of Medical Sciences Tehran Iran Department of Medical Biochemistry and Biophysics Karolinska Institutet (Karolinska Institute) Stockholm Sweden Department of Clinical Sciences University of Sharjah Sharjah United Arab Emirates Department of Biopharmaceutics and Clinical Pharmacy University of Jordan Amman Jordan Medical Research Center Hamad Medical Corporation Doha Qatar Department of Biochemistry and Molecular Medicine Alfaisal University Riyadh Saudi Arabia College of Graduate Health Sciences University of Tennessee Memphis TN United States School of Medicine Sydney NSW Australia Centre for Social Research in Health University of New South Wales Sydney NSW Australia Internal Medicine and Alcohol Related Disease Unit Fondazione Policlinico Universitario A. Gemelli IRCCS Rome Italy Department of Medical and Surgical Sciences Università Cattolica di Roma (Catholic University of Rome) Rome Italy Department of Obstetrics and Gynecology University of Texas Medical Branch Galveston TX United States Department of Biochemistry Osun State University Osogbo Nigeria Department of Pharmacology and Therapeutics University of Medical Sciences Ondo Ondo Nigeria Department of Veteri

Background: Decades of steady improvements in life expectancy in Europe slowed down from around 2011, well before the COVID-19 pandemic, for reasons which remain disputed. We aimed to assess how changes in risk factors and cause-specific death rates in different European countries related to changes in life expectancy in those countries before and during the COVID-19 pandemic. Methods: We used data and methods from the Global Burden of Diseases, Injuries, and Risk Factors Study 2021 to compare changes in life expectancy at birth, causes of death, and population exposure to risk factors in 16 European Economic Area countries (Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, and Sweden) and the four UK nations (England, Northern Ireland, Scotland, and Wales) for three time periods: 1990–2011, 2011–19, and 2019–21. Changes in life expectancy and causes of death were estimated with an established life expectancy cause-specific decomposition method, and compared with summary exposure values of risk factors for the major causes of death influencing life expectancy. Findings: All countries showed mean annual improvements in life expectancy in both 1990–2011 (overall mean 0·23 years [95% uncertainty interval [UI] 0·23 to 0·24]) and 2011–19 (overall mean 0·15 years [0·13 to 0·16]). The rate of improvement was lower in 2011–19 than in 1990–2011 in all countries except for Norway, where the mean annual increase in life expectancy rose from 0·21 years (95% UI 0·20 to 0·22) in 1990–2011 to 0·23 years (0·21 to 0·26) in 2011–19 (difference of 0·03 years). In other countries, the difference in mean annual improvement between these periods ranged from –0·01 years in Iceland (0·19 years [95% UI 0·16 to 0·21] vs 0·18 years [0·09 to 0·26]), to –0·18 years in England (0·25 years [0·24 to 0·25] vs 0·07 years [0·06 to 0·08]). In 2019–21, there was an overall decrease in mean annual life expectancy a

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Erratum to 'Radiomics analysis of placenta on T2WI facilitates prediction of postpartum haemorrhage: A multicentre study'

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EBioMedicine 2020年 55卷 102773页

作者： Qingxia Wu Kuan Yao Zhenyu Liu Longfei Li Xin Zhao Shuo Wang Honglei Shang Yusong Lin Zejun Wen Xiaoan Zhang Jie Tian Meiyun Wang Department of Medical Imaging Henan Key Laboratory of Neurological Imaging Henan Provincial People's Hospital People's Hospital of Zhengzhou University People's Hospital of Henan University Zhengzhou Henan China. School of Biomedical Engineering Shanghai Jiao Tong University Shanghai China CAS Key Laboratory of Molecular Imaging Institute of Automation Chinese Academy of Sciences Beijing China. CAS Key Laboratory of Molecular Imaging Institute of Automation Chinese Academy of Sciences Beijing China University of Chinese Academy of Sciences Beijing China. Collaborative Innovation Centre for Internet Healthcare Zhengzhou University Zhengzhou Henan China. Department of Radiology the Third affiliated Hospital of Zhengzhou University Zhengzhou Henan China. Beijing Advanced Innovation Centre for Big Data-Based Precision Medicine School of Medicine Beihang University Beijing China. Department of Radiology the Third affiliated Hospital of Zhengzhou University Zhengzhou Henan China. Electronic address: zxa@***. University of Chinese Academy of Sciences Beijing China Beijing Advanced Innovation Centre for Big Data-Based Precision Medicine School of Medicine Beihang University Beijing China Engineering Research Centre of Molecular and Neuro Imaging of Ministry of Education School of Life Science and Technology Xidian University Xi'an Shanxi China. Electronic address: jie.tian@***. Department of Medical Imaging Henan Key Laboratory of Neurological Imaging Henan Provincial People's Hospital People's Hospital of Zhengzhou University People's Hospital of Henan University Zhengzhou Henan China. Electronic address: mywang@***.

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Palladium Encapsulated by an Oxygen-Saturated TiO2Overlayer for Low-Temperature SO2-Tolerant Catalysis during CO Oxidation

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Angewandte Chemie 2023年第49期135卷

作者： Jingkun Chen Yuetan Su Qingjie Meng Hehe Qian Le Shi Prof. Jawwad A. Darr Prof. Zhongbiao Wu Prof. Xiaole Weng Key Laboratory of Environment Remediation and Ecological Health Ministry of Education College of Environmental and Resource Sciences Zhejiang University Hangzhou 310058 P. R. China Contribution: Data curation (lead) Writing - original draft (lead) Contribution: Data curation (equal) School of Civil & Environmental Engineering and Geography Science Ningbo University Ningbo 315211 P. R. China Contribution: Writing - review & editing (supporting) ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 311200 P. R. China Contribution: Methodology (supporting) Christopher Ingold Laboratories Department of Chemistry University College London London WC1H 0AJ UK Zhejiang Provincial Engineering Research Centre of Industrial Boiler & Furnace Flue Gas Pollution Control Hangzhou 310058 P. R. China Contribution: Funding acquisition (lead) Resources (lead) Validation (lead) Writing - review & editing (lead)

The development of oxidation catalysts that are resistant to sulfur poisoning is crucial for extending the lifespan of catalysts in real-working conditions. Herein, we describe the design and synthesis of oxide-metal interaction (OMI) catalyst under oxidative atmospheres. By using organic coated TiO 2 , an oxide/metal inverse catalyst with non-classical oxygen-saturated TiO 2 overlayers were obtained at relatively low temperature. These catalysts were found to incorporate ultra-small Pd metal and support particles with exceptional reactivity and stability for CO oxidation (under 21 vol % O 2 and 10 vol % H 2 O). In particular, the core (Pd)-shell (TiO 2 ) structured OMI catalyst exhibited excellent resistance to SO 2 poisoning, yielding robust CO oxidation performance at 120 °C for 240 h (at 100 ppm SO 2 and 10 vol % H 2 O). The stability of this new OMI catalyst was explained through density functional theory (DFT) calculations that interfacial oxygen atoms at Pd−O−Ti sites (of oxygen-saturated overlayers) serve as non-metal active sites for low-temperature CO oxidation, and change the SO 2 adsorption from metal(d)-to-SO 2 (π*) back-bonding to much weaker σ(Ti−S) bonding.

关键词： CO Oxidation Non-Metal Active Site Oxide-Metal Interaction Stability Sulfur Tolerance

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Corrigendum to “Ensemble framework for daily carbon dioxide emissions forecasting based on the signal decomposition–reconstruction model” [APEN 345 (2023)/121330]

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Applied Energy 2023年 349卷

作者： Chao Song Tao Wang Xiaohong Chen Quanxi Shao Xianqi Zhang School of Civil Engineering Sun Yat-sen University Guangzhou 510275 China Guangdong Engineering Technology Research Center of Water Security Regulation and Control for Southern China Sun Yat-sen University Guangzhou 510275 China Key Laboratory of Water Cycle and Water Security in Southern China of Guangdong High Education Institute Sun Yat-sen University Guangzhou 510275 China CSIRO Data61 Australian Resources Research Centre 26 Dick Perry Avenue Kensington WA 6155 Australia North China University of Water Resources and Electric Power Collaborative Innovation Center of Water Resources Efficient Utilization Zhengzhou 450046 China Technology Research Center of Water Conservancy and Marine Traffic Engineering Henan Province Zhengzhou 450046 China

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Soil fungal and bacterial communities are altered by the incorporation of leaf litter containing a fungal endophyte

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European Journal of Soil Science 2022年第3期73卷

作者： Yuanyuan Jin Xuekai Wei James F. White Taixiang Chen Xiuzhang Li Zhenjiang Chen Chunjie Li State Key Laboratory of Grassland Agro-ecosystems Lanzhou University Lanzhou China Key Laboratory of Grassland Livestock Industry Innovation Ministry of Agriculture and Rural Affairs Lanzhou China Engineering Research Center of Grassland Industry Ministry of Education Lanzhou China Gansu Tech Innovation Centre of Western China Grassland Industry Lanzhou China Centre for Grassland Microbiome Lanzhou University Lanzhou China College of Pastoral Agriculture Science and Technology Lanzhou University Lanzhou China Contribution: Conceptualization (lead) Data curation (equal) Formal analysis (equal) Investigation (equal) Methodology (equal) Software (equal) Visualization (equal) Writing - original draft (equal) Contribution: Data curation (equal) Formal analysis (equal) Methodology (equal) Resources (equal) Software (equal) Writing - original draft (equal) Department of Plant Biology Rutgers University New Brunswick New Jersey USA Contribution: Funding acquisition (supporting) Validation (supporting) Writing - review & editing (lead) Contribution: Software (supporting) Writing - review & editing (supporting) Qinghai Academy of Animal and Veterinary Science Qinghai University Xining China Contribution: Methodology (supporting) Visualization (supporting) Writing - review & editing (equal) Contribution: Funding acquisition (supporting) Project administration (supporting) Writing - review & editing (supporting) Contribution: Funding acquisition (lead) Project administration (lead) Resources (supporting) Writing - review & editing (lead)

Litter decomposition plays a key role in nutrient cycling across ecosystems. The presence of Epichloë endophytes in grass plants affects litter decomposition. The overall effects of leaf litter containing Epichloë endophytes on the chemical and biological properties in non-rhizosphere soils have not previously been examined. The current study is aimed to understand the effect of direct incorporation of leaf litter from Epichloë endophyte-infected perennial ryegrass ( Lolium perenne ) on soil chemical characteristics, and fungal and bacterial biodiversity. Firstly, fresh leaf litter of the endophyte Epichloë festucae var. lolii -infected (E+) and endophyte-free (E−) L. perenne were incorporated into the soil, and then samples were collected from E+ and E− litter incorporated soil at T 0 , T 1 , T 2 and T 3 (0, 120, 240 and 360 days) for chemical and sequencing analyses. The Epichloë -containing leaf litter incorporation changed the soil microbial environment by enhancing the soil organic carbon (SOC), total nitrogen (TN), total phosphorus, NH 4 + –N and NO 3 − –N contents, and acidifying soil pH. The endophyte had stronger effects on soil bacteria than soil fungi when the litter was determined with and without the endophyte. Litter containing the Epichloë endophyte significantly increased the absolute abundance of the 16S rRNA gene and relative abundances of the Actinobacteria, Nitrospirae and Gemmatimonadetes, while significantly decreasing the relative abundances of the Planctomycetes and Rokubacteria and the diversity in soil bacteria community. There was no significant effect of endophyte-containing leaf litter incorporation on the absolute abundance and diversity of the soil fungal community except the increment in the relative abundance of Rozellomycota. Soil pH and the SOC-to-TN ratio (C:N) were the main factors influencing the soil bacterial community, and the presence of E. festucae var. lolii was directly and positively related to the soil bacterial diversi

关键词： amplicon sequencing Epichloë festucae var lolii litter incorporation Lolium perenne soil fungi and bacteria

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H2O2-Responsive NIR-II AIE Nanobomb for Carbon Monoxide Boosting Low-Temperature Photothermal Therapy

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Angewandte Chemie 2022年第36期134卷

作者： Gongcheng Ma Zhongke Liu Chunguang Zhu Prof. Huajie Chen Prof. Ryan T. K. Kwok Prof. Pengfei Zhang Ben Zhong Tang Prof. Lintao Cai Prof. Ping Gong Guangdong Key Laboratory of Nanomedicine Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations CAS-HK Joint Lab for Biomaterials Research Laboratory for Biomedical Optics and Molecular Imaging Shenzhen Key Laboratory for Molecular Imaging CAS Key Lab for Health Informatics Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 China University of Chinese Academy of Sciences Beijing 100049 China Contribution: Data curation (lead) Validation (lead) Writing - original draft (lead) Nano Science and Technology Institute University of Science & Technology of China Suzhou 215123 China Contribution: Data curation (equal) Investigation (equal) Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education College of Chemistry Xiangtan University Xiangtan 411105 China Contribution: Data curation (supporting) Methodology (supporting) Contribution: Project administration (supporting) Resources (supporting) Supervision (supporting) Writing - review & editing (equal) Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong China Contribution: Funding acquisition (equal) Supervision (equal) Writing - review & editing (equal) Contribution: Conceptualization (lead) Formal analysis (lead) Methodology (equal) Project administration (lead) Resources (equal) Supervision (equal) Writing - original draft (equal) Writing - review & editing (lead) School of Science and Engineering Shenzhen Institute of Aggregate Science and Technology The Chinese University of Hong Kong Shenzhen Guangdong 518172 China Contribution: Formal analysis (supporting) Funding acquisition (equal) Writing - review & editing (supporting) Contribution: Funding acquisition (lead) Project administration (lead) Supervision (lead) Writing - revi

Low-temperature photothermal therapy (PTT), which circumvents the limitations of conventional PTT (e.g., thermotolerance and adverse effects), is an emerging therapeutic strategy which shows great potential for future clinical applications. The expression of heat shock proteins (HSPs) can dramatically impair the therapeutic efficacy of PTT. Thus, inhibition of HSPs repair and reducing the damage of nearby normal cells is crucial for improving the efficiency of low-temperature PTT. Herein, we developed a nanobomb based on the self-assembly of NIRII AIE polymer PBPTV and carbon monoxide (CO) carrier polymer mPEG(CO). This smart nanobomb can be exploded in a tumor microenvironment in which hydrogen peroxide is overexpressed and release CO into cancer cells to significantly inhibit the expression of HSPs and hence improve the antitumor efficiency of the low-temperature PTT.

关键词： Aggregation Induced Emission Gas Therapy Heat Shock Protein NIR-II Photothermal Therapy

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