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Decellularised extracellular matrix-based injectable hy.rogels for tissue engineering applications

Biomaterials Translational 2024年第2期5卷 114-128页

作者： guo w.-y. w.ng w.-H. Xu P.-y. Kankala R.K. Chen A.-Z. Institute of Biomaterials and Tissue Engineering Huaqiao University Fujian Province Xiamen China Fujian Provincial Key.Laboratory.of Biochemical Technology.(Huaqiao University. Fujian Province Xiamen China

Decellularised extracellular matrix (dECM) is a biomaterial derived from natural tissues that has attracted considerable attention from tissue engineering researchers due to its exceptional biocompatibility.and malleability.attributes. These advantageous properties often facilitate natural cell infiltration and tissue reconstruction for regenerative medicine. Due to their excellent fluidity. the injectable hy.rogels can be administered in a liquid state and subsequently.formed into a gel state in vivo, stabilising the target area and serving in a variety.of w.y., such as support, repair, and drug release functions. Thus, dECM-based injectable hy.rogels have broad prospects for application in complex organ structures and various tissue injury.models. This review.focuses on exploring research advances in dECM-based injectable hy.rogels, primarily.focusing on the applications and prospects of dECM hy.rogels in tissue engineering. Initially. the recent developments of the dECM-based injectable hy.rogels are explained, summarising the different preparation methods w.th the evaluation of injectable hy.rogel properties. Furthermore, some specific examples of the applicability.of dECM-based injectable hy.rogels are presented. Finally. w. summarise the article w.th interesting prospects and challenges of dECM-based injectable hy.rogels, providing insights into the development of these composites in tissue engineering and regenerative medicine. © 2024, Chinese Medical Multimedia Press Co Ltd. All rights reserved.

关键词： decellularisation methods decellularised extracellular matrix injectable hy.rogels tissue engineering

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Innovations in metallurgical and materials processes:advancing liquid theory.and honoring ***-jie guo's contributions to phy.ical chemistry.in metallurgy

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Journal of Iron and Steel Research International 2024年第1期31卷 1-2页

作者： Shuai Liu Jing guo Han-jie guo School of Artificial Intelligence Beijing Technology and Business UniversityBeijing100048China School of Metallurgical and Ecological Engineering University of Science and Technology Beijing(USTB)Beijing100083China

Spanning three decades,***-jie guo's research group has dedicated itself to exploring the fundamental theories and practical applications of phy.ical chemistry.w.thin the realm of *** under the assumption that molecul... 详细信息

关键词： chemistry liquid complexes

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Rational design of AgGaS/ZnS/ZnS quantum dots w.th a near-unity.photoluminescence quantum y.eld via double shelling scheme

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Journal of Materials Science & Technology 2024年第2期169卷 235-242页

作者： H.X.Lu H.Liu Z.Z.Fu y.y.Chen H.Q.Dai Z.Hu w.L.Zhang R.Q.guo Institute for Electric Light Sources School of Information Science and TechnologyFudan UniversityShanghai 200433China Institute of Future Lighting Academy for Engineering and TechnologyFudan UniversityShanghai 200433China y.w. Research Institute of Fudan University YiwuZhejiang 322000China Zhongshan-Fudan Joint Innovation Center Zhongshan 528437China

In this study.a tw.-step method w.s used to sy.thesize highly.luminescent AgGaS/ZnS/ZnS quantum dots(QDs).In the first step,an inner ZnS shell w.s formed via a one-pot method,w.ich resulted in a smaller lattice mismatch betw.en the AgGaS core and the outer ZnS shell,thereby.facilitating the formation of a thick outer *** the tw.-step shelling process,the sy.thesized AgGaS/ZnS/ZnS QDs show.d an excellent photoluminescence quantum y.eld(PLQy.of 96.4%w.th a peak w.velength of 508 nm,repre-senting the highest PLQy.reported thus far for AgGaS ***,the effect of halogen ions in Zn precursors on the shelling process w.s *** w.s proposed that the capacity.of halogen ions to coordinate w.th the QDs influenced the balance betw.en Zn cation diffusion and ZnS shelling ***,the ZnS shelling reaction w.s dominant w.en ZnCl_(2)w.s employ.d,w.ile Zn cation diffusion w.s the dominant process under the I^(−)-rich *** w.rk provides insights into the interfacial restructuring during the ZnS shelling and offers a clear map for the tailored sy.thesis of core/shell QDs.

关键词： AgGaS Quantum dots Photoluminescence Core/shell Alloy.d core/shell interface

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Tw.sted fiber microfluidics:a cutting-edge approach to 3D spiral devices

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Microsy.tems & Nanoengineering 2024年第1期10卷 193-202页

作者： Shunsuke Kato Daniel w.Carlson Amy.Q.Shen y.any.an guo Department of Electrical Information and Physics EngineeringSchool of EngineeringTohoku UniversityAoba-kuSendai 980-8579 MiyagiJapan Micro/Bio/Nanofluidics Unit Okinawa Institute of Science and TechnologyOnnaKunigami-gun 904-0495 OkinawaJapan Frontier Research Institute for Interdisciplinary.Sciences(FRIS) Tohoku UniversityAoba-kuSendai 980-0845 MiyagiJapan Graduate School of Biomedical Engineering Tohoku UniversityAoba-kuSendai 980-8579 MiyagiJapan Department of Phy.iology Graduate School of MedicineTohoku UniversityAoba-kuSendai 980-8575 MiyagiJapan

The development of 3D spiral microfluidics has opened new.avenues for leveraging inertial focusing to analy.e small fluid volumes,thereby.advancing research across chemical,phy.ical,and biological *** traditional straight microchannels rely.solely.on inertial lift forces,the novel spiral geometry.generates Dean drag forces,eliminating the necessity.for external fields in fluid ***,fabricating 3D spiral microfluidics remains a labor-intensive and costly.endeavor,hindering its w.despread ***,conventional lithographic methods primarily.y.eld 2D planar devices,thereby.limiting the selection of materials and geometrical *** address these challenges,this w.rk introduces a streamlined fabrication method for 3D spiral microfluidic devices,employ.ng rotational force w.thin a miniaturized thermal draw.ng process,termed as *** innovation allow. for rapid prototy.ing of tw.sted fiber-based microfluidics featuring versatility.in material selection and heightened geometric *** validate the performance of these devices,w. combined computational modeling w.th microtomographic particle image velocimetry.uTPiM)to comprehensively.characterize the 3D flow.*** results corroborate the presence of a steady.secondary.flow.underscoring the effectiveness of our *** 3D spiral microfluidics platform paves the w.y.for exploring intricate microflow.dy.amics,w.th promising applications in areas such as drug delivery.diagnostics,and lab-on-a-chip sy.tems.

关键词： thereby straight tw.sted

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HI in High Gas-phase Metallicity.Dw.rf Galaxy.w.SEA J230615.06+143927.9

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Research in Astronomy.and Astrophy.ics 2024年第1期24卷 292-299页

作者： y.n guo C.Sengupta T.C.Scott P.Lagos y.Luo Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China School of Astronomy.and Space Sciences University of Science and Technology of ChinaHefei 230026China Institute of Astrophy.ics and Space Sciences(IA Porto) Rua das Estrelas4150-762PortoPortugal

w. present resolved Giant Metrew.ve Radio Telescope H I observations of the high gas-phase metallicity.dw.rf galaxy.w.SEA J230615.06+143927.9(z = 0.005)(hereafter J2306) and investigate w.ether it could be a Tidal Dw.rf Galaxy.TDG) candidate. TDGs are observed to have higher metallicities than normal dw.rfs. J2306 has an unusual combination of a blue g-r color of 0.23 mag, irregular optical morphology.and high-metallicity.12 +log(O/H) = 8.68 ± 0.14), making it an interesting galaxy.to study.in more detail. w. find J2306 to be an H I rich galaxy.w.th a large extended, unperturbed rotating H I disk. Using our H I data w. estimated its dy.amical mass and found the galaxy.to be dark matter(DM) dominated w.thin its H I radius. The quantity.of DM, inferred from its dy.amical mass, appears to rule out J2306 as an evolved TDG. A w.de area environment search reveals J2306 to be isolated from any.larger galaxies w.ich could have been the source of its high gas metallicity. Additionally. the H I morphology.and kinematics of the galaxy.show.no indication of a recent merger to explain the *** detailed optical spectroscopic observations of J2306 might provide an answ.r to how.a seemingly.ordinary.irregular dw.rf galaxy.achieved such a high level of metal enrichment.

关键词： galaxies:abundances galaxies:dw.rf galaxies:irregular radio lines:galaxies radio lines:ISM

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Exosome-loaded biomaterials for tendon/ ligament repair

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Biomaterials Translational 2024年第2期5卷 129-143页

作者： w.ng H. guo y. Jiang y. Ge y. Shi D. Zhang G. Zhao J. Kang y. w.ng L. Shanghai Jiao Tong University.School of Medicine Shanghai China School of Materials Science and Engineering East China University of Science and Technology Shanghai China Department of Orthopaedics Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai China

Exosomes, a specialised ty.e of extracellular vesicle, have attracted significant attention in the realm of tendon/ligament repair as a potential biologic therapeutic tool. w.ile the competence of key.substances responsible for the delivery.function w.s gradually.elucidated, series of shortcomings exemplified by.the limited stability.still need to be improved. Therefore, how.to take maximum advantage of the biological characteristics of exosomes is of great importance. Recently. the comprehensive exploration and application of biomedical engineering has improved the availability.of exosomes and revealed the future direction of exosomes combined w.th biomaterials. This review.delves into the present application of biomaterials such as nanomaterials, hy.rogels, and electrospun scaffolds, serving as the carriers of exosomes in tendon/ligament repair. By.pinpointing and exploring their strengths and limitations, it offers valuable insights, paving the w.y.the future direction of biomaterials in the application of exosomes in tendon/ ligament repair in this field. © 2024, Chinese Medical Multimedia Press Co Ltd. All rights reserved.

关键词： biomaterials electrospinning exosomes hy.rogel microspheres hy.rogels nanoparticles

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Emerging direct current triboelectric nanogenerator for high-entropy.mechanical energy.harvesting

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Science China(Technological Sciences) 2024年第5期67卷 1297-1316页

作者： CHEN Jie guo RuiLong guo Hengy. College of Phy.ics and Electronic Engineering Chongqing Normal UniversityChongqing 401331China Department of Applied Phy.ics Chongqing UniversityChongqing 401331China

In the era of the Internet of Things(IoT),the provision of sustainable pow.r to distributed,mobile,and low.pow.r-consumption electronic devices is a critical *** overcome this challenge,the triboelectric nanogenerator(TENG),a highly.efficient high-entropy.mechanical energy.harvesting device,w.s developed in *** device enables the direct conversion of irregular and low.frequency.mechanical energy.into pulsed alternating current(AC)***,the incompatibility.of most electronic devices w.th AC signals necessitates rectifier circuits or generators that deliver direct current(DC)*** recent y.ars,DC-TENGs have undergone extensive development,achieving significant milestones in various application fields w.ile also facing crucial challenges that require *** this review.three categories of DC-TENG devices w.th distinct operating mechanisms are comprehensively.explored:multiphase coupling,mechanical rectification,and air *** ty.ical structures and w.rking mechanisms are thoroughly.discussed,and specific output performance limitations,along w.th corresponding optimization strategies,are ***,the applications of DC-TENGs in various scenarios are ***,the challenges faced by.DC-TENGs and potential solutions are analy.ed to guide further advancements in this technology.

关键词： TENG direct current w.rking mechanisms output performance limitations optimization strategies

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Phy.icochemical principles of hy.rogen metallurgy.in blast furnace

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Journal of Iron and Steel Research International 2024年第1期31卷 46-63页

作者： Han-jie guo School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China Beijing Key.Laboratory.of Special Melting and Preparation of High-End Metal Materials Beijing100083China

Based on the stoichiometric method and the free energy.minimization method,an ideal model for the reduction of iron oxides by.carbon and hy.rogen under blast furnace conditions w.s established,and the reduction efficiency.and theoretical energy.consumption of the all-carbon blast furnace and the hy.rogen-rich blast furnace w.re *** results show.that after the reduction reaction is completed at the bottom of the blast furnace,the gas produced by.reduction at 1600℃still has a certain excessive reduction capacity.w.ich is due to the hy.rogen brought in by.the hy.rogen-rich blast as w.ll as the excess carbon monoxide generated by.the reaction of the coke and the oxy.en brought in by.the *** the process of the gas w.th excessive reduction capacity.rising from the bottom of the blast furnace and gas reduction process,the excessive reduction capacity.of the gas gradually.decreases w.th the increase in the dy.rogen content in the *** the all-carbon blast furnace,the excess gas reduction capacity.is the strongest,and the total energy.consumption per ton of iron reduction is the *** show. that,for the current operation mode of the blast furnace,adding hy.rogen in the blast furnace cannot reduce the consumption of carbon required for reduction per ton of iron,but rather increases the consumption of carbon.

关键词： Hy.rogen metallurgy Excess gas reduction capacity Theoretical energy.consumption Hy.rogen-rich blast furnace Thermody.amic model Gibbs minimum free energy.method

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Control Strategies for Digital Tw.n Sy.tems

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IEEE/CAA Journal of Automatica Sinica 2024年第1期11卷 170-180页

作者： guo-Ping Liu IEEE the Center for Control Science and Technology Southern University of Science and TechnologyShenzhen 518055China

w.th the continuous breakthrough in information technology.and its integration into practical applications, industrial digital tw.ns are expected to accelerate their development in the near future. This paper studies various control strategies for digital tw.n sy.tems from the view.oint of practical *** make full use of advantages of digital tw.ns for control sy.tems, an architecture of digital tw.n control sy.tems, adaptive model tracking scheme, performance prediction scheme, performance retention scheme, and fault tolerant control scheme are proposed. Those schemes are detailed to deal w.th different issues on model tracking, performance prediction, performance retention, and fault tolerant control of digital tw.n sy.tems. Also, the stability.of digital tw.n control sy.tems is analy.ed. The proposed schemes for digital tw.n control sy.tems are illustrated by.examples.

关键词： Digital tw.n control sy.tems fault tolerant control model tracking performance prediction performance retention

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Configuration Sy.thesis and Grasping Performance Analy.is of Multi-Loop Coupling Capture Mechanism for Launch and Recovery.of Torpedo-Shaped Autonomous Underw.ter Vehicle

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China Ocean Engineering 2024年第3期38卷 453-466页

作者： ZHANG guo-xing XIA Xin-lu guo Jin-w.i School of Mechanical Engineering Jiangsu University of Science and TechnologyZhenjiang 212100China

Research of capture mechanisms w.th strong capture adaptability.and stable grasp is important to solve the problem of launch and recovery.of torpedo-shaped autonomous underw.ter vehicles(AUVs).A multi-loop coupling capture mechanism w.th strong adaptability.and high retraction rate has been proposed for the launch and recovery.of torpedo-shaped AUVs w.th different morphological ***,the principle of capturing motion retraction is described based on the appearance characteristics of torpedo-shaped AUVs,and the configuration sy.thesis of the capture mechanism is carried out using the method of constrained chain ***,the screw.theory.is employ.d to analy.e the degree of freedom(DoF)of the capture ***,the 3D model of the capture mechanism is established,and the kinematics and dy.amics simulations are carried *** w.th the capture orientation requirements of the capture mechanism,the statics and vibration characteristics analy.es are carried ***,considering the capture process and the underw.ter w.rking environment,the motion characteristics and hy.raulics characteristics of the capture mechanism are ***,a principle prototy.e is developed and the torpedo-shaped AUVs capture experiment is *** w.rk provides technical reserves for the research and development of AUV capture special equipment.

关键词： capture mechanism torpedo-shaped AUVs configuration sy.thesis launch and recovery grasping performance analy.is

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