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34篇 您的检索式:作者名="Xiu Dai"
    题名 作者 年代 出处 被引量
1Biofilm Microenvironment-Responsive Nanotheranostics for Dual-Mode Imaging and Hypoxia-Relief-Enhanced Photodynamic Therapy of Bacterial Infections显示文摘The formation of bacterial biofilms closely associates with infectious diseases.Until now,precise diagnosis and effective treatment of bacterial biofilm infections are still in great need.Herein,a novel multifunctional theranostic nanoplatform based on MnO_(2)nanosheets(MnO_(2)NSs)has been designed to achieve pH-responsive dual-mode imaging and hypoxia-relief-enhanced antimicrobial photodynamic therapy(aPDT)of bacterial biofilm infections.In this study,MnO_(2)NSs were modified with bovine serum albumin(BSA)and polyethylene glycol(PEG)and then loaded with chlorin e_(6)(Ce_(6))as photosensitizer to form MnO_(2)-BSA/PEG-Ce_(6)nanosheets(MBP-Ce_(6)NSs).After being delivered into the bacterial biofilm-infected tissues,the MBP-Ce_(6)NSs could be decomposed in acidic biofilm microenvironment and release Ce_(6)with Mn^(2+),which subsequently activate both fluorescence(FL)and magnetic resonance(MR)signals for effective dual-mode FL/MR imaging of bacterial biofilm infections.Meanwhile,MnO_(2)could catalyze the decomposing of H2O_(2)in biofilm-infected tissues into O_(2)and relieve the hypoxic condition of biofilm,which significantly enhances the efficacy of aPDT.An in vitro study showed that MBP-Ce_(6)NSs could significantly reduce the number of methicillin-resistant Staphylococcus aureus(MRSA)in biofilms after 635nm laser irradiation.Guided by FL/MR imaging,MRSA biofilm-infected mice can be efficiently treated by MBP-Ce_(6)NSs-based aPDT.Overall,MBP-Ce_(6)NSs not only possess biofilm microenvironment-responsive dual-mode FL/MR imaging ability but also have significantly enhanced aPDT efficacy by relieving the hypoxia habitat of biofilm,which provides a promising theranostic nanoplatform for bacterial biofilm infections.Weijun Xiu Siyu Gan Qirui Wen Qiu Qiu Sulai Dai Heng Dong Qiang Li Lihui Yuwen Lixing Weng Zhaogang Teng Yongbin Mou Lianhui Wang 2020Research2020,,1:7
2Salting-out Extraction of 2,3-Butanediol from Jerusalem artichoke-based Fermentation Broth显示文摘The removal of solid impurities and separation of target products from a fermentation broth is becoming more tedious with the utilization of lignocelluloses as source of substrate.2,3-Butanediol,an important chemical used widely is also a main product of sugar-based fermentation carried out by Klebsiella pneumoniae.In this study,we investigated the use of salting-out extraction(SOE) that employed a K2HPO4/ethanol system consisting of 21% ethanol and 17% K2HPO4(mass fraction) to separate 2,3-butanediol from the viscous Jerusalem artichoke-based fermentation broth.After SOE,about 98% of solid matters was removed,and the viscosity decreased from 72.5 mPa s in the original fermentation broth to 4.4 mPa s in the top phase.The partition coefficient and yield of 2,3-butanediol reached 13.4 and 99%,respectively,and 89% of soluble proteins was removed from the broth.The results showed that SOE is an efficient way for isolating 2,3-BD from a highly viscous fermentation broth by removing much of the solid matters within the broth.DAI Jianying ZHANG Yuanli XIU Zhilong 2011Chinese Journal of Chemical Engineering2011,19,4:6
3Integrated Control of Agricultural Non-point Source Pollution to Provide Safe and Healthy Drinking Water for Rural Areas显示文摘Agricultural non-point source pollution has become the main part of water pollution prevention and control in China. This paper made a brief introduction to the causes and hazards of agricultural non-point source pollution and the current situation of agricultural non-point source pollution prevention and control in China. In view of the serious agricultural non-point source pollution in water environment of Guangxi and the difference in quality of drinking water between urban and rural areas,it came up with recommendations for strengthening agricultural non-point source pollution prevention and control from scientific distribution,linked operation and maintenance,popular science education,and legal system construction,to guarantee safe and healthy drinking water in rural areas.Qi LIANG Zhen ZHANG Yongxian LIU Jinghao DAI Ziju JIANG Liping PAN Shiyang LU Xiu LAN 2017Asian Agricultural Research2017,9,9:4
4A New Degraded Sesquiterpene from Marine Actinomycete Streptomyces sp. 0616208显示文摘A new degraded sesquiterpene was isolated from the marine actinomycete Streptomyces sp. 0616208. Its structure was elucidated as (1α,4aα,5α, 7β, 8aβ)-5, 8a-dimethyl-decahydronaphthalene -1, 4a, 7-triol on the basis of spectroscopic data.Xiu Chao XIE Wen Li MEI You Xing ZHAO Kui HONG Hao Fu DAI 2006Chinese Chemical Letters2006,17,11:3
5A Simple Approach to Control the Growth of Non-spherical Gold Nanoparticles显示文摘A simple method to prepare the non-spherical gold particles was developed. The result solution included trigonal, truncated trigonal, hexagonal layers, and a pseudo-pentagonal shaped gold nanocrystals. The key factor is to control the relative rates of nucleation and cluster growth in this method. These attributes make seeding growth method as a useful tool in the fabrication of colloidal metal materials. A longitudinal plasmon resonance of 866 nm was observed, which is in the near-IR spectral regions (600-1000 nm). The excellent optical properties as near-IR labels are used to develop highly sensitive analysis method.Hong YUAN, Ru Xiu CAI*, Dai Wen PANG College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072 2003Chinese Chemical Letters2003,14,11:2
6Fiber-Optic Raman Spectrum Sensor for Fast Diagnosis of Esophageal Cancer显示文摘A fiber-optic Raman spectrum sensor system is used for the fast diagnosis of esophageal cancer during clinical endoscopic examination.The system contains a 785nm exciting laser,a Raman fiber-optic probe with 7 large core fibers and a focus lens,and a highly sensitive spectrum meter.The Raman spectrum of the tissue could be obtained within 1 second by using such a system. A signal baseline removal and denoising technology is used to improve the signal quality.A novel signal feature extraction method for differentiating the normal and esophageal cancer tissues is proposed,based on the differences in half-height width(HHW)in 1200cm^-1 to 1400cm^-1 frequency band and the ratios of the spectral integral energy between 1600cm^-1-1700cm^-1 and 1500cm^-1- 1600cm^-1 band.It shows a high specificity and effectivity for the diagnosis of esophageal cancer.Jianhua DAI Xiu HE Zhuoyue LI Kang LI Tingting YANG Zengling RAN Lijian YIN Yao CHEN Xiang ZOU Dianchun FANG Guiyong PENG 2019Photonic Sensors2019,9,1:2
7Synthesis of NiFe_2O_4 Powders Well Defined in Size and Morphologies显示文摘The uniform NiFe2O4 powders with different particle size and morphologies (octahedral, cubic and spherical) have been prepared from different precursors via hydrothermal process. The nanocrystallines derived from precursor B in the weak alkali solution (pH≤10) are superparamagnetic.Yu Ting ZHAO*, De Hong CHEN, Dai Rong CHEN, Xiu Ling JIAO Department of Chemistry, Shandong University, Jinan 250100 2002Chinese Chemical Letters2002,13,4:1
8Photodegradation catalyst screening by combinatorial methodology显示文摘Qi Xiu Dai Hai Yuan Xiao Wen Sheng Li 2005Applied Catalysis A2005,290,:1
9Photo-degradation catalyst screening by high throughput experiments显示文摘Hai Yuan Xiao Qi Xiu Dai Wen Sheng Li 2006Journal of Molecular Catalysis A2006,245,:1
10A novel strategy for integrated utilization of Jerusalem artichoke stalk and tuber forproduction of 2,3-butanediol by Klebsiella pneumoniae显示文摘Dai JY Li D Xiu ZL 2010Bioresource Technology2010,101,21:1
11Ionic liquid-based salting-out extraction of bio-chemicals显示文摘Ionic liquids(ILs)are known as green solvents,and have been widely used in the dissolution and transformation of biopolymers,the extraction of bioactive compounds and metal ions,and the capture of SO2 or CO2.However,less attention was given to the separation of bio-based chemicals,such as diols and organic acids.Bio-based chemicals can be efficiently separated by organic solvent-based salting-out extraction(SOE)from fermentation broths,while organic solvents are normally unfriendly to environment and process safety in commercialized production due to their toxicity or/and flammability.In recent years,the IL-based SOE system has been explored in the separation of bio-based chemicals as an alternative of organic solvent-based SOE system.In this review,the progress of IL-based SOE of biobased chemicals has been summarized,including the effect of ILs structure on the formation of aqueous two phases,and the influences of ILs structure and concentration,temperature and pH on the partition behaviors of target products and ILs as well as removal of impurities.Most of bio-based chemicals could be distributed into the IL-rich phase with high recovery,while the partition behaviors of bio-based chemicals are sometimes different from that in organic solvent-based SOE systems.Although the results of ILbased SOE are promising,further studies are still required in the increased selectivity of target products over by-products,recovery and recycling of ILs,and the separation between ILs and bio-based chemicals.Additionally,three kinds of integrated bioprocesses would be developed on basis of utilization of ILs as extractant for SOE,catalyst for condensation reaction and solvent for pretreatment of lignocellulose.Jianying Dai Yaqin Sun Zhilong Xiu 2021Chinese Journal of Chemical Engineering2021,34,2:1
12Effect of biofeedback combined with high-quality nursing in treatment of functional constipation显示文摘BACKGROUND Functional constipation(FC)is a common functional gastrointestinal disease with various clinical manifestations.It is a physical and mental disease,which seriously affects patient physical and mental health and quality of life.Biofeedback therapy is the treatment of choice for FC,especially outlet obstructive constipation caused by pelvic floor dysfunction.High-quality nursing is a new nursing model in modern clinical work and a new concept of modern nursing service.AIM To explore the effect of biofeedback combined with high-quality nursing in the treatment of FC.METHODS A total of 100 patients with FC admitted to our hospital from March 2015 to July 2019 were selected for clinical observation.These patients were randomly divided into two groups of 50:Experimental group(biofeedback combined with highquality nursing treatment group)and control group(biofeedback group).RESULTS The constipation symptom score of the experimental group was significantly lower than that of the control group,and the difference was statistically significant(P<0.05).The anal canal resting pressure and initial defecation threshold of the experimental group were significantly lower than those of the control group,and the maximum squeeze systolic pressure of the anal canal of the experimental group was significantly higher than that of the control group(P<0.05).The Self-Rating Anxiety Scale and Zung’s Self-Rating Depression Scale scores of the two groups were significantly lower than before treatment.The Self-Rating Anxiety Scale and Self-Rating Depression Scale scores of the experimental group were significantly lower than those of the control group(P<0.05).The patient satisfaction score of the experimental group was significantly higher than that of the control group(P<0.05).CONCLUSION The application of biofeedback combined with high-quality nursing in the treatment of FC has significant advantages over pure biofeedback treatment,and it is worthy of promotion in clinical work.Xiu Zhao Jin Meng Jin Dai Zhi-Tao Yin 2021World Journal of Clinical Cases2021,9,4:1
13Sugaring-out extraction of 2,3-butanediol from fermentation broths显示文摘DAI J Y LIU C J XIU Z L 2015Process Biochemistry2015,50,11:1
14Acellular nerve xenografts based on supercritical extraction technology for repairing long-distance sciatic nerve defects in rats显示文摘Compared to conventional artificial nerve guide conduits (NGCs) prepared using natural polymers or synthetic polymers, acellular nerve grafts (ACNGs) derived from natural nerves with eliminated immune components have natural bionic advantages in composition and structure that polymer materials do not have. To further optimize the repair effect of ACNGs, in this study, we used a composite technology based on supercritical carbon dioxide (scCO_(2)) extraction to process the peripheral nerve of a large mammal, the Yorkshire pig, and obtained an innovative Acellular nerve xenografts (ANXs, namely, CD + scCO_(2) NG). After scCO_(2) extraction, the fat and DNA content in CD + scCO_(2) NG has been removed to the greatest extent, which can better supported cell adhesion and proliferation, inducing an extremely weak inflammatory response. Interestingly, the protein in the CD + scCO_(2) NG was primarily involved in signaling pathways related to axon guidance. Moreover, compared with the pure chemical decellularized nerve graft (CD NG), the DRG axons grew naturally on the CD + scCO_(2) NG membrane and extended long distances. In vivo studies further revealed that the regenerated nerve axons had basically crossed the CD + scCO_(2) NG 3 weeks after surgery. 12 weeks after surgery, CD + scCO_(2) NG was similar to autologous nerves in improving the quality of nerve regeneration, target muscle morphology and motor function recovery and was significantly better than hollow NGCs and CD NG. Therefore, we believe that the fully decellularized and fat-free porcine ACNGs may be the most promising “bridge” for repairing human nerve defects at this stage and for some time to come.Shuai Wei Qian Hu Jianxiong Ma Xiu Dai Yu Sun Gonghai Han Haoye Meng Wenjing Xu Lei Zhang Xinlong Ma Jiang Peng Yu Wang 2022Bioactive Materials2022,7,12:1
15A comparison of99mTc-MIBI myocardial SPET with electron beam computed tomography in the assessment of coronary artery disease显示文摘Zhiming Yao Xiu Jie Liu MD. Rongfang Shi Ruping Dai Shaoxiong Zhang Yunzhong Liu Shengting Li Yueqin Tian Xiaoli Zhang 1997European Journal of Nuclear Medicine1997,,9:1
16A novel strategy for integrated utilization of Jerusalem artichoke stalk and tuber for production of 2,3-butane- diol by KlebsieUa pneumoniae 显示文摘Li D Dai J Y Xiu Z L 2010Bioresource Technology2010,101,21:1
17Effect of delayed sowing on grain number, grain weight, and protein concentration of wheat grains at specific positions within spikes显示文摘Delays in sowing have significant effects on the grain yield,yield components,and grain protein concentrations of winter wheat.However,little is known about how delayed sowing affects these characteristics at different positions in the wheat spikes.In this study,the effects of sowing date were investigated in a winter wheat cultivar,Shannong 30,which was sown in 2019 and 2020 on October 8(normal sowing)and October 22(late sowing)under field conditions.Delayed sowing increased the partitioning of ^(13)C-assimilates to spikes,particularly to florets at the apical section of a spike and those occupying distal positions on the same spikelet.Consequently,the increase in grain number was the greatest for the apical sections,followed by the basal and central sections.No significant differences were observed between sowing dates in the superior grain number in the basal and central sections,while the number in apical sections was significantly different.The number of inferior grains in each section also increased substantially in response to delayed sowing.The average grain weights in all sections remained unchanged under delayed sowing because there were parallel increases in grain number and ^(13)C-assimilate partitioning to grains at specific positions in the spikes.Increases in grain number m^(–2) resulted in reduced grain protein concentrations as the limited nitrogen supply was diluted into more grains.Delayed sowing caused the greatest reduction in grain protein concentration in the basal sections,followed by the central and apical sections.No significant differences in the reduction of the grain protein concentration were observed between the inferior and superior grains under delayed sowing.In conclusion,a 2-week delay in sowing improved grain yield through increased grain number per spike,which originated principally from an increased grain number in the apical sections of spikes and in distal positions on the same spikelet.However,grain protein concentrations declined in each section because of the increased grain number and reduced N uptake.CHU Jin-peng GUO Xin-hu ZHENG Fei-na ZHANG Xiu DAI Xing-long HE Ming-rong 2023Journal of Integrative Agriculture2023,22,8:1
18Mechanical Properties of a Novel High-Strength Aluminum-Lithium Alloy显示文摘Yuan Zhi Shan Lu Zheng Xie You Hua Wu Xiu Liang Dai Sheng Long Liu Chang Sheng 20112011 (689)2011,,689:1
19PNN -curve:a new 2D graphical representation of DNA sequences and its application 显示文摘Dai Q Liu X Q Xiu Z L 2006J The Bio2006,243,4:1
20IDENTIFICATION OF HYBRID DYNAMICAL SYSTEM IN GLYCEROL FERMENTATION: ESTIMATING THE INHIBITION RANGE OF 3-HPA ONTO TWO KEY ENZYMES BASED ON BIOLOGICAL ROBUSTNESS显示文摘HONGLI WANG LEI WANG DANDAN DAI ENMIN FENG ZHILONG XIU 2013International Journal of Biomathematics2013,6,5:0
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