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Fluor SO_x净化工艺——为俄罗斯绿色环境开发的将SO_2转化为元素硫的经济技术

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硫酸工业 2006年第2期 42-47页

作者： T．K．Chow v.w.wong T．M．Flood J．A．Gebur 纪罗军（译）瑾（校） Fluor公司美国

Fluor公司开发的Fluor SO_2净化工艺具有广泛多样的工艺布局,可以通过经济的方式定制脱除烟气中的有害组成。该工艺几乎能去除全部SO_2并减少CO排放。Fluor SO_x净化工艺的主要步骤已在多套工业装置中得到成功的证实。除技术可行、经济... 详细信息

Fluor公司开发的Fluor SO_2净化工艺具有广泛多样的工艺布局,可以通过经济的方式定制脱除烟气中的有害组成。该工艺几乎能去除全部SO_2并减少CO排放。Fluor SO_x净化工艺的主要步骤已在多套工业装置中得到成功的证实。除技术可行、经济合理之外,Fluor SO_x净化工艺不会产生任何有害副产物,也不会遇到与SO_3 有关的腐蚀问题。此外,该工艺生产高纯度可市售的元素硫。论述了Fluor SO_x净化工艺的特征、技术和成本优势、设计和操作的简易性以及实施的便利性。

关键词：二氧化硫硫化氢元素硫净化

慢性乙型肝炎病毒携带者肝纤维化及脾硬度定量弹力成像:剪切波及瞬时弹力成像与肝活检的相关性

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国际医学放射学杂志 2014年第1期 81-82页

作者： v.Y.Leung J.Shen v.w.wong J.Abrigo G.L.wong A.M.Chim 谷磊磊 Institute of Digestive Disease Prince of Wales HospitalThe Chinese University of Hong KongNgan Shing StreetShatinHong KongSARChina 852

目的探讨剪切波(Sw)弹性成像评价慢性乙型肝炎病毒携带者肝纤维化的可行性,及与瞬时弹力成像所见比较。方法本研究得到伦理委员会同意,并签署知情同意书。

关键词：慢性乙型肝炎病毒肝纤维化肝疾病携带者弹性成像弹力肝活检剪切波相关性

Recent progress in circularly polarized multi-resonance thermally activated delayed fluorescence materials for organic light-emitting diodes

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Science China Chemistry 2024年

作者： He Jiang Dan Ai Jibiao Jin Zheng Xie wai-Yeung wong Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy The Hong Kong Polytechnic University School of Chemistry and Chemical Engineering University of Jinan The Hong Kong Polytechnic University Shenzhen Research Institute

Circularly polarized luminescence(CPL) is of importance to advance science and technology with significant potential applications in information storage, spintronics and optoelectronic devices. Integrating CPL and the emission mechanism of thermally activated delayed fluorescence(TADF) has attracted considerable attention, because of their 100% internal quantum efficiency in theory and easily modified molecular structures for tunable photo-electrical properties. However, the typical donor-acceptor(D-A) architecture of CP-TADF emitters generally induces a broad emission profile with inferior color purity due to their large structural relaxation under the processes of excitation and emission. Recently, CP-multi-resonance(MR)-TADF emitters that concurrently display CPL activity, narrowband emission and high efficiency are emerging as the most suitable candidates for the next-generation organic light-emitting diode(OLED) display. In this review, the progress of CP-MR-TADF materials is reviewed in terms of the molecular design strategy, the common relationship between the molecular structures and optoelectronic properties, and their OLEDs performance. Finally, the opportunities and challenges in this research topic are discussed.

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Neighboring effect in single-atom catalysts for the electrochemical carbon dioxide reduction reaction

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eScience 2024年第1期4卷 1-16页

作者： Hon Ho wong Mingzi Sun Tong wu Cheuk Hei Chan Lu Lu Qiuyang Lu Baian Chen Bolong Huang Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARChina Research Centre for Carbon-Strategic Catalysis The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARChina

Although single-atom catalysts(SACs)have attracted enormous attention for their applications in the electrochemical reduction of CO_(2)(CO_(2)RR)due to their extraordinary catalytic activity and well-defined active centers,neighboring effects and their influence on the electrochemical performance of SACs have not been well *** this review,we present a summary of the neighboring effects on SACs for the CO_(2)RR process,where the surrounding atoms not only induce electronic modulation of the metal atom but also participate in the CO_(2)*** theoretical and experimental studies have pointed out that the neighboring sites of the anchored metal center can provide second active/adsorption locations during the catalytic process,enhancing CO_(2)RR performance *** review supplies advanced insights into the significant roles and impacts of neighboring effects on the catalytic process,which also benefit the development of advanced SACs to achieve efficient electrocatalysis.

关键词： Carbon dioxide reduction Neighboring effect Atomic catalysts Electronic modulations Active sites

Genomics-driven derivatization of the bioactive fungal sesterterpenoid variecolin:Creation of an unnatural analogue with improved anticancer properties

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Acta Pharmaceutica Sinica B 2024年第1期14卷 421-432页

作者： Dexiu Yan Jemma Arakelyan Teng wan Ritvik Raina Tsz Ki Chan Dohyun Ahn vladimir Kushnarev Tsz Kiu Cheung Ho Ching Chan Inseo Choi Pui Yi Ho Feijun Hu Yujeong Kim Hill Lam Lau Ying Lo Law Chi Seng Leung Chun Yin Tong Kai Kap wong wing Lam Yim Nikolay S.Karnaukhov Richard Y.C.Kong Maria v.Babak Yudai Matsuda Department of Chemistry City University of Hong KongHong Kong SARChina iGEM Team“varieCure” City University of Hong KongHong Kong SARChina Department of Biomedical Engineering City University of Hong KongHong Kong SARChina Moscow Clinical Research Center Named After A.S.Loginov Moscow 111123Russian Federation

A biosynthetic gene cluster for the bioactive fungal sesterterpenoids variecolin(1)and variecolactone(2)was identified in Aspergillus aculeatus ATCC *** production of 1 and 2 was achieved in Aspergillus oryzae by expressing the sesterterpene synthase vrcA and the cytochrome P450 ***,the replacement of vrcB with homologous P450s from other fungal terpenoid pathways yielded three new variecolin analogues(5-7).Analysis of the compounds’anticancer activity in vitro and in vivo revealed that although 5 and 1 had comparable activities,5 was associated with significantly reduced toxic side effects in cancer-bearing mice,indicating its potentially broader therapeutic *** study describes the first tests of variecolin and its analogues in animals and demonstrates the utility of synthetic biology for creating molecules with improved biological activities.

关键词： Animal studies Anticancer properties Biosynthesis Natural products Sesterterpenoids Synthetic biology Terpene synthases variecolin

Unsynchronized butyrophilin molecules dictate cancer cell evasion of vγ9vδ2 T-cell killing

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Cellular & Molecular Immunology 2024年第4期21卷 362-373页

作者： Zeguang wu Qiezhong Lamao Meichao Gu Xuanxuan Jin Ying Liu Feng Tian Ying Yu Pengfei Yuan Shuaixin Gao Thomas S.Fulford Adam P.Uldrich Catherine C.L wong wensheng wei Biomedical Pioneering Innovation Center Peking-Tsinghua Center for Life SciencesPeking University Genome Editing Research CenterState Key Laboratory of Protein and Plant Gene ResearchSchool of Life SciencesPeking University100871BeijingChina EdiGene Inc. Life Science ParkChangping District102206BeijingChina Center for Precision Medicine Multi-Omics Research Peking University Health Science CenterPeking University100191BeijingChina Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity The University of MelbourneParkvilleVIC3010Australia Cancer Immunology Program Peter MacCallum Cancer CentreMelbourneVICAustralia State Key Laboratory for Complex Severe and Rare DiseasesClinical Research InstitutePeking Union Medical College HospitalChinese Academy of Medical Science&Peking Union Medical CollegePeking-Tsinghua Center for Life Sciences100871BeijingChina

vγ9vδ2 T cells are specialized effector cells that have gained prominence as immunotherapy agents due to their ability to target and kill cells with altered pyrophosphate *** our effort to understand how cancer cells evade the cell-killing activity of vγ9vδ2 T cells,we performed a comprehensive genome-scale CRISPR screening of cancer *** found that four molecules belonging to the butyrophilin(BTN)family,specifically BTN2A1,BTN3A1,BTN3A2,and BTN3A3,are critically important and play unique,nonoverlapping roles in facilitating the destruction of cancer cells by primary vγ9vδ2 T *** coordinated function of these BTN molecules was driven by synchronized gene expression,which was regulated by IFN-γsignaling and the RFX ***,an enzyme called QPCTL was shown to play a key role in modifying the N-terminal glutamine of these BTN proteins and was found to be a crucial factor in vγ9vδ2 T cell killing of cancer *** our research,we offer a detailed overview of the functional genomic mechanisms that underlie how cancer cells escape vγ9vδ2 T ***,our findings shed light on the importance of the harmonized expression and function of gene family members in modulating T-cell activity.

关键词： Butyrophilin vγ9vδ2 T-cell Cancer-specific immune evasion Glutaminyl-peptide cyclotransferase-like Pyrophosphate metabolite Immunotherapy

Temperate Stutzerimonas Phage Encoding Toxin-Antitoxin System Genes Represents a Novel Genus

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Journal of Ocean University of China 2024年第4期23卷 1087-1101页

作者： ZHANG Hong GUO Ruizhe GAO Chen ZHENG Kaiyang XIONG Yao DONG Yue LIU Yundan wANG Ziyue CHEN Ying wANG Hongmin SHAO Hongbing SUNG Yeong Yik MOK wen Jye wong Li Lian MCMINN Andrew wANG Min LIANG Yantao College of Marine Life Sciences Institute of Evolution and Marine BiodiversityMOE Laboratory of Evolution and Marine BiodiversityFrontiers Science Center for Deep Ocean Multispheres and Earth SystemCenter for Ocean Carbon NeutralityOcean University of ChinaQingdao 266003China UMT-OUC Joint Center for Marine Studies Qingdao 266003China Institute of Marine Biotechnology Universiti Malaysia Terengganu21030 Kuala TerengganuMalaysia Institute for Marine and Antarctic Studies University of TasmaniaHobartTAS 7001Australia Haide College Ocean University of ChinaQingdao 266100China The Affiliated Hospital of Qingdao University Qingdao 266001China

Stutzerimonas have been extensively studied due to their remarkable metabolic and physiological ***,research on its phages is currently *** this study,we isolated a novel double-stranded DNA(dsDNA)phage,vB_SstM-PG1,from the marine environment that infects Stutzerimonas stutzeri *** dsDNA genome is 37204 bp long with a G/C content of 64.14%and encodes 54 open reading *** phage possesses a tail packaging structure that is different from known Stutzerimonas stutzeri phages and exhibits structural protein characteristics similar to those of temperate *** addition,two genes of toxin-antitoxin system,including YdaS_antitoxin and HEPN_SAv_6107,were found in the vB_SstM-PG1 genome and play important roles in regulating host growth and *** phylogenetic tree and comparative genomic analysis,it has been determined that vB_SstM-PG1 is not closely related to any phages previously identified in the GenBank ***,it has a connection with enigmatic,uncultured ***,the vB_SstM-PG1 virus exhibits an average nucleotide identity of over 70%with six uncultivated viruses identified in the IMG/vR v4 *** significant finding has resulted in the identification of a novel viral genus known as Metabovirus.

关键词： Stutzerimonas vB_SstM-PG1 Metabovirus temperate phage genomic and phylogenetic analysis

Multifocal photoacoustic microscopy using a single-element ultrasonic transducer through an ergodic relay

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Light(Science & Applications) 2020年第1期9卷 717-723页

作者： Yang Li Terence T.w.wong Junhui Shi Hsun-Chia Hsu Lihong v.wang Caltech Optical Imaging Laboratory Andrew and Peggy Cherng Department of Medical EngineeringDepartment of Electrical EngineeringCalifornia Institute of Technology1200 East California BoulevardPasadenaCA 91125USA Department of Biomedical Engineering Washington University in St.LouisCampus Box 1097One Brookings DriveSt.LouisMO 63130-4899USA Translational and Advanced Bioimaging Laboratory Department of Chemical and Biological EngineeringHong Kong University of Science and TechnologyHong KongChina

Optical-resolution photoacoustic microscopy(OR-PAM)has demonstrated high-spatial-resolution imaging of optical absorption in biological *** date,most OR-PAM systems rely on mechanical scanning with confocally aligned optical excitation and ultrasonic detection,limiting the wide-field imaging speed of these *** several multifocal OR-PA(MFOR-PA)systems have attempted to address this limitation,they are hindered by the complex design in a constrained physical ***,we present a two-dimensional(2D)MFOR-PAM system that utilizes a 2D microlens array and an acoustic ergodic *** a single-element ultrasonic transducer,this system can detect PA signals generated from 400 optical foci in parallel and then raster scan the optical foci patterns to form an MFOR-PAM *** system improves the imaging resolution of an acoustic ergodic relay system from 220 to 13μm and enables 400-folds shorter scanning time than that of a conventional OR-PAM system at the same resolution and laser repetition *** demonstrated the imaging ability of the system with both in vitro and in vivo experiments.

关键词： element resolution utilize

Torsional Characteristics of Single walled Carbon Nanotube with water Interactions by Using Molecular Dynamics Simulation

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Nano-Micro Letters 2014年第3期6卷 268-279页

作者： v.vijayaraghavan C.H.wong School of Mechanical and Aerospace Engineering Nanyang Technological University

The torsional characteristics of single walled carbon nanotube(SwCNT) with water interactions are studied in this work using molecular dynamics simulation method. The torsional properties of carbon nanotubes(CNTs) in a hydrodynamic environment such as water are critical for its key role in determining the lifetime and stability of CNT based nano-fluidic devices. The effect of chirality, defects and the density of water encapsulation is studied by subjecting the SwCNT to torsion. The findings show that the torsional strength of SwCNT decreases due to interaction of water molecules and presence of defects in the SwCNT. Additionally,for the case of water molecules encapsulated inside SwCNT, the torsional response depends on the density of packing of water molecules. Our findings and conclusions obtained from this paper is expected to further compliment the potential applications of CNTs as promising candidates for applications in nano-biological and nano-fluidic devices.

关键词： Carbon nanotube water interaction Torsion water encapsulation Nano-fluid Molecular dynamics