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Cross-talk between biometal ions and immune cells for bone repair

Engineered Regeneration 2024年第3期5卷 375-408页

作者： Shubo Liu Zhengjie Lin Wei Qiao Bin Chen jie shen Division of Orthopaedics and Traumatology Department of OrthopaedicsNanfang HospitalSouthern Medical UniversityGuangzhouPR China D Printing Clinical Translational and Regenerative Medicine Center Department of StomatologyShenzhen Qianhai Shekou Free Trade Zone HospitalShenzhenPR China shenzhen Key Laboratory of Spine Surgery Department of Spine SurgeryPeking University Shenzhen HospitalShenzhenPR China Applied Oral Sciences and Community Dental Care Faculty of DentistryThe University of Hong KongHong Kong S.A.R.PR China

Biometal ions are crucial in the structure and function of living organisms and have extensively been employed to promote bone tissue ***,the biological functions of biometal ions and the underlying mechanisms responsible for their pro-regenerative effects remain incompletely understood,since bone repair is an intricate physiological process involving multiple cell types and *** accomplishments in the osteoim-munological field have revealed the momentous involvement of the immune system in mediating the therapeutic effects of biometal *** inflammatory factors secreted by immune cells contribute to bone cell migration,activation,and *** review summarizes the immune system and its constituent cells,followed by the current perspective on immunomodulation during bone ***,the physicochemical and physiological properties of various biometal ions,including lithium,sodium,potassium,magnesium,calcium,strontium,vana-dium,iron,cobalt,copper,and zinc,are thoroughly *** addition,the interactions between biometal ions,immune cells,and bone tissue are discussed,aiming to provide insights into the prospective development of novel approaches to bone tissue regeneration by harnessing the therapeutic potential of these biometal ions.

关键词： Metal ion Bone regeneration Bone repair Immune cell Osteo-immunomodulation

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Thermal and Mechanical Properties of Epoxy Resin Modified with N-(4-hydroxyphenyl)terahydrophthalic Anhydrideimide

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Journal of Wuhan University of Technology(Materials Science) 2018年第3期33卷 744-748页

作者：徐任信 CHENG Shixin ZHOU Jing shen jie LI Zheng TAN Xing School of Materials Science & Engineering Wuhan University of Technology

A novel epoxy-imide resin based on diglycidyl ether of bisphenol-A and N-（4-hydroxyphenyl）terahydrophthalic anhydrideimide（HTAM） was synthesized. The structural characterization of the epoxy-imide resin was conducted by FT-IR spectra. 4,4＇-diaminodiphneylmethane（DDM） was used as a curing agent for the epoxy-imide resin. The thermal properties of the cured resin were evaluated with dynamic mechanical analyses（DMA） and thermogravimetric analysis（TGA）. The results showed that the cured resin exhibited a high glass transition temperature（Tg） of 186 ℃ when the molar amount of HTAM was 0.04 mol in the resin. The yields of the cured resin at 800 ℃ raised from 16.45% to 19.41%. The flexural properties were also measured, the flexural strength raised from 79.4 to 95.7 MPa, and the flexural modulus exhibited from 2.6 to 3.0 GPa.

关键词： epoxy-imide resin glass transition temperature char yield flexural properties

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Efficient Coupling of Complex Fluorooligosaccharides to Phenolic Peptide Mediated by Calcium Iodide

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Chinese Journal of Chemistry 2023年第19期41卷 2483-2487页

作者： Pei Liu Xing Quan Fangyu Wei Xianjun Deng jie shen Jiansong Cheng State Key Laboratory of Medicinal Chemical Biology College of PharmacyNankai UniversityTianjin300353 China College of Life sciences Nankai UniversityTianjin300353 China

Besides serving as therapeutic agents and building blocks for glycoprotein synthesis,homogeneous synthetic glycopeptides also benefit understanding function of specific ***,the selectivity coupling of oligosaccharides to a given peptide remains challenging despite the fact that the synthesis of structure-defined complex oligosaccharides has been greatly facilitated by chemo-enzymatic based ***,a Ca^(2+)-promoted glycosylation approach was developed to exclusively modify phenolic peptide using a panel of biologically important glycans.

关键词： Calcium iodide α-Fluoroglycoside Glycosylation Coupling Glycopeptide

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Replicated Banded Spherulite:Microscopic Lamellar-assembly of Poly(L-lactic acid)Crystals in the Poly(oxymethylene)Crystal Framework

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Chinese Journal of Polymer Science 2018年第3期36卷 385-390页

作者： Li-Jun Ye jie-Qing shen Kang-Yuan Xie Zhi-Xiang Li Yong-Jin Li College of Material Chemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou 310036China

The morphologies of poly(L-lactic acid)(PLLA)spherulites,when crystallized within the pre-existed poly(oxymethylene)(POM)crystal frameworks,have been ***/POM blend is a melt-miscible crystalline/crystalline blend *** to the lower melting point but much faster crystallization rate than PLEA,POM crystallized first upon cooling from the melt state and then melted first during the subsequent heating process in this blend *** assembly of PLLA crystals within the pre-existed POM spherulitic frameworks was directly observed with the polarized light microscopy by selectively melting the POM *** investigation indicated that PLLA crystals fully replicated the spherulitic morphology and optical birefringence of the POM crystal frameworks,which was independent of T_(o).On the other hand,POM could also duplicate the pre-existed PLLA *** result obtained provides us a possibility to design the lamellar assembly and crystal structures of polymer crystals in miscible crystalline/crystalline polymer blends.

关键词： Banded spherulite Lamellar assembly Confinement Poly(L-lactic acid) Poly(oxymethylene)

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Mechanistic study on 4,4'-sulfonylbis removal with CO_(2)/Ar gas-liquid DBD plasma

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Plasma Science and Technology 2024年第10期26卷 82-92页

作者： Guangjia WANG Shidong FANG Baoguo LIN Chengzhu ZHU jie shen School of Resources and Environmental Engineering Hefei University of TechnologyHefei 230009People’s Republic of China Institute of Plasma Physics HFIPSChinese Academy of SciencesHefei 230031People’s Republic of China Anhui Kexin Environmental Protection Co.Ltd. Hefei 230031People’s Republic of China

In this study,a single dielectric barrier discharge(DBD)coaxial reactor was used to degrade 4,4'-sulfonylbis(TBBPS)in water using greenhouse gas(CO_(2))and argon as the carrier *** investigation focused on CO_(2)conversion,reactive species formation,gas-liquid mass transfer mechanism,and degradation mechanism of TBBPS during the discharge plasma *** the decrease of CO_(2)/Ar ratio in the process of plasma discharge,the emission spectrum intensity of Ar,CO_(2)and excited reactive species was *** increase promoted collision and dissociation of CO_(2),resulting in a series of chemical reactions that improved the production of reactive species such as·OH,^(1)O_(2),H_(2)O_(2)and O_(3).These reactive species initiated a sequence of reactions with *** indicated that at a gas flow rate of 240 mL/min with a CO_(2)/Ar ratio of 1:5,both the highest CO_(2)conversion rate(17.76%)and TBBPS degradation rate(94.24%)were *** degradation mechanism was elucidated by determining types and contents of reactive species present in treatment liquid along with analysis of intermediate products using liquid chromatography-mass spectrometry *** research provides novel insights into carbon dioxide utilization and water pollution control through dielectric barrier discharge plasma technology.

关键词： dielectric barrier discharge carbon dioxide conversion 4,4'-sulfonylbis wastewater treatment

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A highly selective turn-on colorimetric and luminescence sensor based on a triphenylamine-appended ruthenium(Ⅱ) dye for detecting mercury ion

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Chinese Chemical Letters 2015年第5期26卷 580-584页

作者： Su-Hua Fan jie shen Hai Wu Ke-Zhi Wang An-Guo Zhang School of Chemical and Materials Engineering Fuyang Normal College College of Chemistry Beijing Normal University College of Materials and Chemistry & Chemical Engineering Chengdu University of Technology

A dual colorimetric and luminescent sensor based on a heteroleptic ruthenium dye [Ru（Hipdpa）（Hdcb- py）（NCS）2]^-.0.5H^＋ 0.5[N（C4H9）4]＋ Ru（Hipdpa） {where Hdcbpy = monodeprotonted-4,4＇-dicarboxy-2,2＇- bipyridine and Hipdpa = 4-（1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl）-N,N-diphenylaniline} for selective detection of Hg2. is presented. The results of spectrophotometric titrations revealed an evident luminescence intensity enhancement （I/Io = 11 ） and a considerable blue shift in visible absorption and luminescence maxima with the addition of rig2.. The sensitive response of the optical sensor on Hg^2＋ was attributed to the binding of the electron-deficient Hg^2＋ to the electron-rich sulfur atom of the thiocyanate （NCS） ligand in the Ru（Hipdpa）, which led to an increase in the energy gap between the highest occupied molecular orbital （HOMO） and the lowest unoccupied molecular orbital （LUMO）. Accordingly, the blue shift in the absorption spectrum of Ru（Hipdpa） due to the binding of Hg2. was obtained. Ru（Hipdpa） was found to have decreased Hg2~ detection limit and improved linear region as compared to di（tetrabutylammonium） cis-bis（isothiocyanato）bis（2,2＇-bipyridine-4-carboxylic acid-4＇- carboxylate）ruthenium（ll） N719. Moreover, a dramatic color change from pink to yellow was observed, which allowed simple monitoring of Hg^2＋ by either naked eyes or a simple colorimetric reader. Therefore, the proposed sensor can provide potential applications for Hg2＊ detection.

关键词： Ruthenium dye Mercury Colorimetric sensor Luminescence sensor

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Comparison of intravitreal bevacizumab with macular photocoagulation for treatment of diabetic macular edema: a systemic review and Meta-analysis

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International Journal of Ophthalmology(English edition) 2014年第6期7卷 1048-1055页

作者： Xiang-Dong Liu Xiao-Dong Zhou Zhi Wang Hong-jie shen Department of Ophthalmology Affiliated Jinshan HospitalFudan University

AIM: To further evaluate the efficacy and safety of intravitreal bevacizumab(IVB) versus macular photocoagulation(MPC) in treatment of diabetic macular edema(DME) by Meta-analysis. METHODS: Pertinent publications were identified through systemic searches of Pub Med, Medline,EMBASE, and the Cochrane Controlled Trials Register up to 30 November, 2013. Changes in central macular thickness(CMT) in μm and best-corrected visual acuity(BCVA) in log MAR equivalents were extracted at 1, 3, 6,12 and 24 mo after initial treatment, and a Meta-analysis was carried out to compare results between groups receiving IVB and ***: Five randomized controlled trial(RCTs) and one high-quality comparative study were identified and included. Our Meta-analysis revealed that both IVB and MPC resulted in the improvements of CMT and BCVA in eyes with DME at 1mo after initial treatment, with IVB being significantly superior to MPC(P =0.01 and 0.02,respectively). The improvements of both measure outcomes at 3, 6, 12 and 24 mo after treatment did not vary significantly between the IVB groups and MPC groups(CMT at 3mo, P =0.85; at 6mo, P =0.29; at 12 mo,P =0.56; at 24 mo, P =0.71; BCVA at 3mo, P =0.31; at 6mo,P =0.30; at 12 mo, P =0.23; at 24 mo, P =0.52). However,the number of observed adverse events was low in all ***: Current evidence shows IVB treatment trends to be more effective in improvements of macular edema and vision in eyes with DME at an earlier follow up(1mo) compared with MPC. At other time, both interventions have comparable efficacy without statistical significances.

关键词： intravitreal injection bevacizumab photocoagulation diabetic macular edema Meta-analysis

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Incremental Web Usage Mining Based on Active Ant Colony Clustering

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Wuhan University Journal of Natural Sciences 2006年第5期11卷 1081-1085页

作者： shen jie LIN Ying CHEN Zhimin Department of Computer Science YangzhouUniversity Yangzhou 225009 Jiangsu China Department of Computer Science Nanchang Instituteof Aeronautical Technology Nanchang 330034 JiangxiChina

To alleviate the scalability problem caused by the increasing Web using and changing users＇ interests, this paper presents a novel Web Usage Mining algorithm-Incremental Web Usage Mining algorithm based on Active Ant Colony Clustering. Firstly, an active movement strategy about direction selection and speed, different with the positive strategy employed by other Ant Colony Clustering algorithms, is proposed to construct an Active Ant Colony Clustering algorithm, which avoid the idle and ＂flying over the plane＂ moving phenomenon, effectively improve the quality and speed of clustering on large dataset. Then a mechanism of decomposing clusters based on above methods is introduced to form new clusters when users＇ interests change. Empirical studies on a real Web dataset show the active ant colony clustering algorithm has better performance than the previous algorithms, and the incremental approach based on the proposed mechanism can efficiently implement incremental Web usage mining.

关键词： Web usage mining ant colony clustering incremental mining

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Synthesis and characterization of novel biocompatible nanocapsules encapsulated lily fragrance

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Chinese Chemical Letters 2019年第3期30卷 739-742页

作者： Weihong Ji Tianlu Zhang Zhiguo Lu jie shen Zuobing Xiao Xin Zhang State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences University of Chinese Academy of Sciences Shanghai Research Institute of Fragrance and Flavor Industry School of Perfume and Aroma Technology Shanghai Institute of Technology

Fragranced products are wildly used in our daily life. However, their storage, application and quality are severely influenced by their strong volatility. In order to overcome these natural defects of fragrances,fragrance encapsulation approaches have been developed recently. In this study, a mild, simple and lowcost method of fragrance encapsulation was invented. Liposomes composed of soya lecithin/DSPEPEG2000/PLGA were prepared to encapsulate lily fragrance(LF). And these nanosized fragrance products was named LF-NPs. The hydrodynamic diameters of LF-NPs were approximately 100 nm and their encapsulation efficiency was up to 21.9%. Besides, LF-NPs could also prolong the release time of lily fragrance. Finally, the cytotoxicity tests indicated that LF-NPs offered biocompatibility. Therefore, LF-NPs were expected to have application prospects.

关键词： Nanocapsules Encapsulation Fragrance Biocompatibility Simple operation

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Convergence analysis of an infeasible quasi- Newton bundle method for nonsmooth convex programming

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Frontiers of Mathematics in China 2023年第5期18卷 367-380页

作者： jie shen Fangfang GUO Liping PANG School of Mathematics Liaoning Normal UniversityDalian 116029China School of Mathematical Sciences Dalian University of TechnologyDalian 116024China

By utilizing the improvement function,we change the nonsmooth convex constrained optimization into an unconstrained optimization,and construct an infeasible quasi-Newton bundle method with proximal *** should be noted that the objective function being minimized in unconstrained optimization subproblem may vary along the iterations(it does not change if the null step is made,otherwise it is updated to a new function).It is necessary to make some adjustment in order to obtain the convergence *** employ the main idea of infeasible bundle method of Sagastizabal and Solodov,and under the circumstances that each iteration point may be infeasible for primal problem,we prove that each cluster point of the sequence generated by the proposed algorithm is the optimal solution to the original ***,for BFGS quasi-Newton algorithm with strong convex objective function,we obtain the condition which guarantees the boundedness of quasi-Newton matrices and the R-linear convergence of the iteration points.

关键词： Non-smooth optimization convex constraint improvement function bundle method quasi-Newton direction

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