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Diketopyrrolopyrrole-Au(I) as singlet oxygen generator for enhanced tumor photodynamic and photothermal therapy

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Science China Chemistry 2020年第1期63卷 55-64页

作者： Xiaoyu Huang Rui Gu Jiewei Li Nan Yang Zijin Chen Weili Si Peng Chen Wei Huang Xiaochen Dong Key Laboratory of Flexible Electronics(KLOFE)&Institute of advanced Materials(IAM) Nanjing Tech University(NanjingTech)Nanjing 211800China School of Chemical and Biomedical Engineering Nanyang Technological UniversityNanyang 637459Singapore School of Chemistry and Materials Science Nanjing University of Information Science&TechnologyNanjing 210044China Shaanxi Institute of Flexible Electronics(SIFE) Northwestern Polytechnical University(NPU)Xi'an 710072China

Diketopyrrolopyrrole(DPP)derivatived photosensitizers(PSs)with near infrared(NIR)absorption and good photophysical properties have drawn tremendous attention in cancer ***,current DPP derivatives present unsatisfactory quantum yield of singlet oxygen(1.2)due to the large energy gap between the excited singlet and triplet *** tackle this challenge,herein the DPP core is functionalized with triphenylphosphine-Au(I)group(Th DPP-Au),leading to a high1.2 quantum yield of *** calculation attributes the enhancement to spin-orbit coupling and population of the triplet excition upon *** hydrophilic Th DPP-Au nanoparticals(NPs)are prepared via nano-reprecipitation,which displays homogeneous size and excellent light absorption ability(ε=4.382×1.4 M-1.m-1..And the Th DPP-Au NPs exhibit low dark toxicity and high phototoxicity,which can effectively kill tumor cells via 1.2 induced mitochondrial apoptotic pathway upon ***,in vivo experiments demonstrate that Th DPP-Au NPs can selective accumulation in tumor and present excellent synergistic photodynamic/photothermal therapy guided by fluorescence and photothermal dual imaging.

关键词： diketopyrrolopyrrole-Au(I) singlet oxygen photodynamic therapy photothermal therapy

Capping CsPbBr3 with ZnO to improve performance and stability of perovskite memristors

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Nano research 2017年第5期10卷 1584-1594页

作者： Ye Wu Yi Wei Yong Huang Fei Cao Dejian Yu Xiaoming Li Haibo Zeng Institute ofOptoelectronics & Nanomaterials Herbert Gleiter Institute ofNanoscience Jiangsu Key Laboratory of Advanced Micro & Nano Materials and Technology College of Material Science and Engineering Nanjing University of Science and Technology Nanjing 210094 China State Key Laboratory of Mechanics and Control of Mechanical Structures College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

The rapid development of information {1. has led to an urgent need for devices with fast information storage and processing, a high density, and low energy consumption. Memristors are considered to be next-generation memory devices with all of the aforementioned advantages. Recently, organometallic halide perovskites were reported to be promising active materials for memristors, although they have poor stability and mediocre performance. Herein, we report for the first time the fabrication of stable and high-performance memristors based on inorganic halide perovskite （CsPbBr3, CPB）. The devices have electric field-induced bipolar resistive switching （ReS） and memory behaviors with a large on/off ratio （〉1.5）, low working voltage （〈1.V） and energy consumption, long data retention （〉1.4 s）, and high environmental stability, which are achieved via ZnO capping within the devices. Such a design can be adapted to various devices. Additionally, the heterojunction between the CPB and ZnO endows the devices with a light-induced ReS effect of more than 1.3 with a rapid response speed （〈1.ms）, which enables us to tune the resistance state by changing the light and electric field simultaneously. Such multifunctional devices achieved by the combination of information storage and processing abilities have potential applications for future computing that transcends traditional architectures.

关键词： inorganic perovskite bipolar resistive switching nonvolatile ZnO capping low power consumption

Comparison of Controlling Parameters for Near-Equatorial Tropical Cyclone Formation between Western North Pacific and North Atlantic

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Journal of Meteorological research 2021年第4期35卷 623-634页

作者： Changhao LU Xuyang GE Melinda PENG Key Laboratory of Meteorological Disaster of Ministry of Education/Joint International research Laboratory of Climate and Environment Change/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science&TechnologyNanjing 210044China University of Colorado Colorado SpringColorado 80918USA

In this study,the differences in spatial distribution and controlling parameters for the formation of near-equatorial tropical cyclones(NETCs)between the western North Pacific(WNP)and the North Atlantic(NA)are *** exhibit distinctive spatial variabilities in different *** the past few decades,the majority of NETCs took place in WNP while none was observed in *** mechanism behind such a distinguishing spatial distribution difference is analyzed by using statistical *** is noted that the dynamical variables such as low-level relative vorticity and vertical wind shear(VWS)are likely the primary controlling *** with NA,larger low-level vorticity and smaller VWS appear over *** increase of vorticity attributes a lot to the turning of northeast trade *** in WNP tend to occur in the areas with VWS less than 9 m s^(-1.,while the VWS in NA generally exceeds 1. m s^(-1..On the other hand,the sea surface temperature in the near-equatorial region of both of the two oceans exceeds 26.5℃and the difference of mid-level moisture is not significant;thus,thermal factors have little contribution to the distinction of NETC activities between WNP and *** oscillation(ISO)and synoptic-scale disturbances in WNP are also shown to be more favorable for NETC *** NETCs were generated in ISO active ***-scale disturbances in WNP obtain more energy from the mean flows through the barotropic energy conversion *** overall unfavorable thermal and dynamic conditions lead to the absence of NETCs in NA.

关键词： near-equatorial tropical cyclone(NETC) cyclogenesis genesis potential index(GPI)

A new method for removing mixed noises

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Science China(information Sciences) 2011年第1期54卷 51-59页

作者： LI Bing1.3,LIU QuanSheng1.2,XU JiaWei1.& LUO XiaoJun1.1.chool of Mathematics and Computation Science,Changsha University of Science&technology, Changsha 41.076,China 2LMAM,Université de Bretagne-Sud,Campus de Tohannic,Vannes 5601..Université Européenne de Bretagne,France 3Department of Mathematics,Zhongshan Polytechnic,Zhongshan 528404,China 1. School of Mathematics and Computation Science Changsha University of Science & Technology Changsha 410076 China3. Department of Mathematics Zhongshan Polytechnic Zhongshan 528404 China2. LMAM Université de Bretagne-Sud Campus de Tohannic Vannes 56017 France4. Université Européenne de Bretagne Bretagne France

We first introduce a similarity assumption to describe the similarity phenomenon in natural images, and establish a similarity principle which supplies a simple mathematical justification for the non-local means filter in removing Gaussian *** the similarity principe in an adapted way,we then propose a new algorithm,called mixed noise filter(MNF)to remove simultaneously a mixture of Gaussian and random impulse *** experiments show that our new filter improves significantly the trilateral filter in removing mixed noises,and that it is as effcient as the non-local means filter in removing Gaussian noises,and as good as the trilateral filter in removing random impulse noises.

关键词： mixed noises Gaussian noises random impulse noises image restoration nonlinear filters trilateral filter non-local means filter denoising similarity principle

Comparison of DSHA-based response spectrum with design response spectrum of building code of Pakistan(BCP-SP-2007)for a site in Muzaffargarh area,Pakistan

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Earthquake Science 2022年第4期35卷 280-292页

作者： Naseer Ahmed Shahid Ghazi Institute of Geology University of PunjabLahore 54000Pakistan centre for Geographic {1. System University of PunjabLahore 54000Pakistan

The building code of any country is considered to be a basic technical guidance document for the seismic design of ***,building codes are typically developed for the whole country,without considering site specific models that incorporate detailed site-specific ***,the adequacy of the design spectrum for building codes may sometimes be *** study the sufficiency of the building codes of Pakistan(BCP-SP-2007),a deterministic seismic hazard analysis(DSHA)based spectrum was developed for a site in the Muzaffargarh area,Pakistan,using an updated earthquake catalogue,seismic source model,and a next generation attenuation model(NGA-WEST-2).Further,an International Building Code(IBC-2000)spectrum was developed for the study area to compare the *** DSHA-based response spectrum resulted in a peak ground acceleration(PGA)value of 0.21.g for the Chaudwan *** evaluation of BCP-SP-2007 and IBC-2000 spectra provided a critical assessment for analyzing the associated margins.A comparison with the DSHA-based response spectrum showed that the BCP-SP-2007 design spectrum mostly overlapped with the DSHA spectrum unlike ***,special attention is needed for designing buildings in the study area when considering earthquake periods longer than 1.s,and the BCP-SP-2007 spectrum can be enhanced when considering a period range of 0.1.-0.64 ***,BCP-SP-2007 is based on a probabilistic approach and its comparison with deterministic results showed the significance of both methods in terms of design.

关键词： deterministic seismic hazard analysis earthquakes probabilistic seismic hazard analysis building code response spectrum

High-resolution polarization-sensitive optical coherence tomography and optical coherence tomography angiography for zebrafish skin imaging

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Journal of Innovative Optical Health Sciences 2021年第6期4卷 131-144页

作者： Di Yang Zhuoqun Yuan Zihan Yang Muyun Hu Yanmei Liang Institute of Modern Optics Nankai University Tianjin Key Laboratory of Micro-scale Optical Information Science and TechnologyTianjin 300350P.R.China

Zebrafish is an important animal model,which is used to study development,pathology,and genetic *** zebrafish skin model is widely used in cutaneous research,and angiogenesis is critical for cutaneous wound ***,limited by the penetration depth,the available optical methods are difficult to describe the internal skin structure and the connection of blood vessels between the skin and subcutaneous *** a homemade high-resolution polarization-sensitive optical coherence tomography(PS-OCT)system,we imaged the polarization contrast of zebrafish skin and the zebrafish skin vasculature with optical coherence tomography angiography(OCTA).Based on these OCT images,the {1. distribution of the zebrafish skin vasculature was ***,we monitored the healing process of zebrafish cutaneous *** think the high-resolution PS-OCT system will be a promising tool in studying cutaneous models of zebrafish.

关键词： Polarization-sensitive optical coherence tomography optical coherence tomography angiography zebrafish skin vasculature

Interpolation Fitting Algorithm in Time-Space Domain of Differential Barometric Altimetry

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Journal of Beijing Institute of technology 2019年第1期28卷 119-128页

作者： Zhengqun Hu Lirong Zhang Guanyi Ma Yuanfa Ji National Astronomical Observatories Chinese Academy of Sciences Key Laboratory of Cognitive Radio and information Processing Ministry of EducationGuilin University of Electronic Technology Guangxi Key Laboratory of Precision Navigation technology and Application

In order to overcome the limitations of a unitary reference station in mobile communication positioning network differential barometric altimetry(DBA)and broaden the action scope of the reference station and improve positioning accuracy of elevation,an integrated interpolation algorithm model based on generalized extended approximation(GEA)algorithm and Kriging interpolation in time-space domain of reference station is *** the time domain,barometric measured data is considered the maximum value estimated by bilateral extension to avoid wrong direction of estimation,which is approaching true *** the spatial domain,barometric relevance among multiple reference stations is utilized,the weighted coefficients of multiple reference stations is calculated by the integrated algorithm model based on the GEA algorithm and Kriging *** impact of each reference station to the measured station is quantified,so that a virtual reference station is constructed,which can overcome the limitation of barometric correction by a unitary reference *** addition,the measurement error due to irregular change in atmospheric pressure will be eliminated.

关键词： differential barometric altimetry(DBA) multi reference station generalized extended approximation(GEA) Kriging algorithm

Assessment and prediction of tablet properties using transmission and backscattering Raman spectroscopy and transmission NIR spectroscopy

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Asian Journal of Pharmaceutical Sciences 2016年第4期11卷 547-558页

作者： Elisabeth Peeters Ana Filipa Tavares da Silva Maunu Toiviainen Jeroen Van Renterghem Jurgen Vercruysse Mikko Juuti Joao Almeida Lopes Thomas De Beer Chris Vervaet Jean-Paul Remon Laboratory of Pharmaceutical technology Ghent UniversityOttergemsesteenweg 4609000GhentBelgium Laboratory of Pharmaceutical Process Analytical technology Ghent UniversityOttergemsesteenweg 4609000GhentBelgium REQUIMTE Department of Chemical SciencesUniversity of PortoRua de Jorge Viterbo Ferreira2284050-313PortoPortugal VTT Technical research {1. of Finland Optical Measurement TechnologiesKaitoväylä190570 OuluFinland

This study investigated whether Raman and Near Infrared(NIR) spectroscopy could predict tablet properties. Granules were produced on a continuous line by varying granulation parameters. Tableting process parameters were adjusted to obtain uniform tablet weight and thickness. Spectra were collected offline and tablet properties determined with traditional analyzing methods. Partial Least Squares(PLS) regression was used to correlate spectral information to tablet properties, but predictive models couldn’t be established. Principal component analysis(PCA) was effectively used to distinguish theophylline concentrations and hydration levels and multiple linear regression(MLR) analysis allowed insight on how granulation parameters affect granule and tablet properties.

关键词： Continuous production PAT Granulation Tableting NIR Raman

Adaptive State Feedback Predictive Control and Expert Control for a Delayed Coking Furnace

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Chinese Journal of Chemical Engineering 2008年第4期16卷 590-598页

作者：张伟勇黄德先王毓栋王京春 School of information science and {1. Beijing University of Chemical Technology Beijing 100029 China Department of Automation Tsinghua University Beijing 100084 China Tsinghna National Laboratory for information Science and {1. Beijing 100084 China

An adaptive state feedback predictive control （SFPC） scheme and an expert control scheme are presented and applied to the temperature control of a 1.00 kt·a^-1.delayed coking furnace, which is the key equipment for the delayed coking process. Adaptive SFPC is used to improve the performance of temperature control in normal operation. A simplified nonlinear model on the basis of first principles of the furnace is developed to obtain a state space model by linearization. Taking advantage of the nonlinear model, an online model adapting method is presented to accommodate the dynamic change of process characteristics because of tube coking and load changes. To compensate the large inverse response of outlet temperature resulting from the sudden increase of injected steam of a particular velocity to tubes, a monitoring method and an expert control scheme based on heat balance calculation are proposed. Industrial implementation shows the effectiveness and feasibility of the proposed control strategy.

关键词： delayed coking furnace adaptive control state feedback predictive control expert control