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In situ construction of heterostructured bimetallic sulfide/phosphide with rich interfaces for high-performance aqueous Zn-ion batteries

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Science China materials 2022年第2期65卷 356-363页

作者： Fang Yang Yuenian Shen Ze Cen Jie Wan Shijie Li Guanjie He Junqing Hu Kaibing Xu School of Mechanical and Automotive Engineering Shanghai University of Engineering ScienceShanghai 201620China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Research Center for Analysis and Measurement&College of Materials Science and EngineeringDonghua UniversityShanghai 201620China Institute of Innovation&Application National Engineering Research Center for Marine AquacultureZhejiang Ocean UniversityZhoushan 316022China School of Chemistry University of LincolnBrayford PoolLincoln LN67TSUK College of Health Science and Environmental Engineering Shenzhen Technology UniversityShenzhen 518118China

It is still challenging to develop suitable cathode structures for high-rate and stable aqueous Zn-ion ***,a phosphating-assisted interfacial engineering strategy is designed for the controllable conversion of NiCo_(2)S_(4) nanosheets into heterostructured NiCoP/NiCo_(2)S_(4) as the cathodes in aqueous Zn-ion *** multicomponent heterostructures with rich interfaces can not only improve the electrical conductivity but also enhance the diffusion pathways for Zn-ion *** expected,the NiCoP/NiCo_(2)S_(4) electrode has high performance with a large specific capacity of 251.1 mA h g^(−1) at a high current density of 10 A g^(−1) and excellent rate capability(retaining about 76%even at 50 A g^(−1)).Accordingly,the Zn-ion battery using NiCoP/NiCo_(2)S_(4) as the cathode delivers a high specific capacity(265.1 mA h g^(−1) at 5 A g^(−1)),a long-term cycling stability(96.9%retention after 5000 cycles),and a competitive energy density(444.7W h kg^(−1) at the power density of 8.4 kW kg^(−1)).This work therefore provides a simple phosphating-assisted interfacial engineering strategy to construct heterostructured electrode materials with rich interfaces for the development of high-performance energy storage devices in the future.

关键词： phosphating heterostructure NiCoP/NiCo2S4 Znion batteries high capacity

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research on the solution graft reaction between SMA and PA6

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Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology 2007年第7期29卷 36-38页

作者： Lu, Sheng-Jun Yu, Jie Dong, Li-Jie Yao, Jun-Long Xiong, Chuan-Xi School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China National Engineering Research Center for Compounding and Modification of Polymeric Materials Guiyang 550014 China

In this paper, PA6-g-SMA was prepared via a solution graft reaction between SMA and PA6. The effect of SMA concentration, reaction temperature and reaction time on grafting ratio of PA6-g-SMA and its melting point were discussed. The experimental results showed that reaction temperature was a key factor that effected on grafting ratio and the melting point of PA6-g-SMA decreased obviously when its grafting ratio increased. The melting point of PA6-g-SMA decreased to 193.5°C when its grafting ratio reach at 5.12%.

关键词： Graft reaction PA6 SMA

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Strong antibacterial dental resin composites containing cellulose nanocrystal/zinc oxide nanohybrids

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Journal of dentistry 2019年 80卷 23-29页

作者： Yazi Wang Hongfei Hua Wei Li Ruili Wang Xiaoze Jiang Meifang Zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai 201620 China. Department of Oral Surgery Ninth People's Hospital Shanghai Jiao Tong University School of Medicine Key Laboratory of Stomatology National Clinical Research Center of Stomatology Shanghai 200011 China. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai 201620 China. Electronic address: zhumf@***.

OBJECTIVE:The aim is to explore the reinforcing and antibacterial effect of cellulose nanocrystal/zinc oxide (CNC/ZnO) nanohybrids on dental resin composites (DRCs). METHODS:CNC/ZnO nanohybrids were prepared through precipitating Zn on the surface of CNC and then introduced into the DRCs. The mechanical properties of DRCs including compressive strength, flexural modulus, flexural strength, and Vickers microhardness were characterized. The antibacterial activity of DRCs to Streptococcus mutans was determined and the morphology of Streptococcus mutans on the surface of DRCs after incubation was observed. The morphology of fractured surface after flexural test and Zn content in DRCs were analyzed. RESULTS:Compared with DRCs without CNC/ZnO nanohybrids, DRCs containing 2 wt.% CNC/ZnO nanohybrids possess higher compressive strength and flexural modulus and there is no significantly statistical difference (P＞0.05) on the flexural strength and Vickers microhardness. The excess use of CNC/ZnO nanohybrids decreases the mechanical properties of DRCs except flexural modulus. DRCs containing CNC/ZnO nanohybrids show excellent antibacterial properties and a 78% reduction in bacterial number is obtained when 2% CNC/ZnO nanohybrids are added. CONCLUSION:The small amounts of CNC/ZnO nanohybrids have a positive influence on the mechanical and antibacterial properties of DRCs. SIGNIFICANCE:The prepared DRCs are promising to address bulk fracture and secondary caries.

关键词： Bacteria Caries Composite materials Mechanical properties Streptococcus mutans ZnO

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Nanofiber Scaffold‑Based Tissue engineering for the Treatment of Acute Liver Failure

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Advanced Fiber materials 2024年第3期6卷 686-712页

作者： Xiaojiao Liu Xiang Yao Qinjun OuYang Ana LOliveira Li Yan Yaopeng Zhang State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringShanghai Engineering Research Center of Nano‑Biomaterials and Regenerative MedicineDonghua UniversityShanghai 201620People’s Republic of China The Second Medical Center and National Clinical Research Center of Geriatric Diseases Chinese PLA General HospitalBeijing 100853People’s Republic of China Centro de Biotecnologia e Quimica Fina(CBQF) Laboratorio AssociadoEscola Superior de BiotecnologiaUniversidade Catolica Portuguesa4169‑005 PortoPortugal

Acute liver failure(ALF)has a mortality rate of more than 40%.Currently,orthotopic liver transplantation is the sole clinical treatment for ALF,but its wide usage is severely limited due to donor shortage and immunological *** emerging and promising technology for ALF treatment is liver tissue engineering(LTE),wherein porous scaffolds serve as a crucial *** scaffolds,which mimic the inherent structures of fibrous extracellular matrix well,provide an ideal environment for cell growth and tissue ***,several functional nanofiber scaffolds for LTE have been developed,which show impressive results in regulating cell function and repairing liver injury when combined with appropriate seeding cells and/or growth *** review firstly introduces the etiologies and treatment indicators of ***,typical fabrication technologies of nanofiber scaffolds and their related applications for function regulation of liver-related cells and treatment of ALF are comprehensively *** emphasis is placed on the strategies involving an appropriate combination of suitable seeding cells and growth ***,the current challenges and the future research and development prospects of nanofiber scaffold-based LTE are *** review will serve as a valuable reference for designing and modifying novel nanofiber scaffolds,further promoting their potential application in LTE and other biomedical fields.

关键词： Acute liver failure Liver tissue engineering Nanofiber scaffold Mesenchymal stem cell Cell–material interaction

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3d Printed Time/Temperature-Dependent Fluorescent Hydrogels for Multi-Information Dynamic Display

SSRN

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SSRN 2023年

作者： Zuo, Xiaoling Zhou, Ying Hao, Kangan Huang, Anrong Wu, Chong Yang, Yinye College of Materials Science and Engineering Guizhou Minzu University Guiyang550025 China College of Physics and Mechatronic Engineering Guizhou Minzu University Guiyang550025 China College of Pharmacy Guizhou University of Traditional Chinese Medicine Guiyang550025 China National Engineering Research Center for Compounding and Modification of Polymeric Materials Guiyang550014 China

There is an urgent need to develop next generation information storage and display materials to protect confidential information. Herein, we introduce light-activated 3D printing to fabricate two kinds of new fluorescent hydrogel-based information carriers, one of them affords the characteristics of time-dependent multicolor fluorescence and reversible photochromism, the other features multi-factor modulation character and temperature-dependent photoluminescence when doped with lanthanide ions. A 3D code-producing array constructed by them is able to render the dynamic information transformations on a time scale by controlling UV exposure and heating treatment. More importantly, a novel cryptographic matrix composed by them makes the encrypted information only identifiable at a specific time in accordance with the sequence of photochromism, meanwhile, the information can self-erase after being read according to the fading behaviors upon exposure to air. The related works are still rare in the field of information encryption and decryption. We expect the light-activated 3D printing to guide the future intelligent manufacturing for fluorescent hydrogels, additionally, hope these two fluorescent hydrogels to serve as a new avenue for the future development of information storage and display materials. © 2023, The Authors. All rights reserved.

关键词： Cryptography

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Adjustable Multimodality Fluorescence Emissions and Photochromism of Functional Molecular Device Containing Double Chromophores with Intramolecular Fret Process

SSRN

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SSRN 2023年

作者： Zheng, Changwu Zhang, Xufang Gao, Aiqin Ju, Meng Hou, Aiqin Xie, Kongliang State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Chemistry and Chemical Engineering Donghua University Shanghai201620 China National Engineering Research Center for Dyeing and Finishing of Textiles Donghua University Shanghai201620 China

Advanced biomimetic materials with tunable luminescence and changeable color have received immense attention for their great potential in various photonic applications. Herein, we fabricate two naphthalimide (NA)-functionalized spiropyran (SP) photoswitch molecular materials containing intramolecular energy donor-acceptor combinations (SP-N1, SP-N2), which have the adjustable multimodality fluorescence emissions and gradient photochromism. The intramolecular fluorescence resonance energy transfer within the excited states can be realized via designing the proximal distance between spiropyran and naphthalimide chromophore groups and their structure conversion, whereby the multimodality fluorescence emission can be generated. The color and intensity of fluorescence emissions are regulated by designing electron donor and acceptor system. The detailed spectroscopic and time-dependent density functional theory (TD-DFT) studies demonstrate that the effective photoconversion between SP-NA and the corresponding open structure merocyanine (MC) isomers (MC-NA) is facilitated by the large free volume induced by the rigid conjugation planes of the molecules. The PET composite films containing functional molecules have adjustable multimodal fluorescence emissions and variable photoinduced color. They are applied in multi-level anti-counterfeiting, and the patterns with the multi-signal output mode greatly enhance the level of anti-counterfeiting. The biomimetic materials with tunable luminescence and variable colors have potential applications in complex information encryption, advanced anti-counterfeiting, and optical devices. © 2023, The Authors. All rights reserved.

关键词： Photochromism

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Correction to: Environmental consequences of interacting effects of changes in stratospheric ozone, ultraviolet radiation, and climate: UNEP Environmental Effects Assessment Panel, Update 2024

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Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2025年第5期24卷 2025 May 8页

作者： Patrick J Neale Samuel Hylander Anastazia T Banaszak Donat-P Häder Kevin C Rose Davide Vione Sten-Åke Wängberg Marcel A K Jansen Rosa Busquets Mads P Sulbæk Andersen Sasha Madronich Mark L Hanson Tamara Schikowski Keith R Solomon Barbara Sulzberger Timothy J Wallington Anu M Heikkilä Krishna K Pandey Anthony L Andrady Laura S Bruckman Christopher C White Liping Zhu Germar H Bernhard Alkiviadis Bais Pieter J Aucamp Gabriel Chiodo Raúl R Cordero Irina Petropavlovskikh Rachel E Neale Catherine M Olsen Simon Hales Aparna Lal Gareth Lingham Lesley E Rhodes Antony R Young T Matthew Robson Sharon A Robinson Paul W Barnes Janet F Bornman Anna B Harper Hanna Lee Roy Mackenzie Calderón Rachele Ossola Nigel D Paul Laura E Revell Qing-Wei Wang Richard G Zepp Environmental Research Center Smithsonian Institution Edgewater MD USA. Centre for Ecology and Evolution in Microbial Model Systems Linnaeus University Kalmar Sweden. Unidad Académica de Sistemas Arrecifales Universidad Nacional Autónoma de México Puerto Morelos Mexico. Biology Friedrich-Alexander-University (Retired) Erlangen Germany. Department of Biological Sciences and Department of Civil and Environmental Engineering Rensselaer Polytechnic Institute Troy NY USA. Department of Chemistry University of Turin Turin Italy. Department of Marine Sciences University of Gothenburg Gotheburg Sweden. School of Biological Earth and Environmental Sciences Environmental Research Institute University College Cork Cork Ireland. Chemical and Pharmaceutical Sciences Kingston University London Kingston Upon Thames UK. Civil Environmental & Geomatic Engineering University College London London UK. Department of Chemistry and Biochemistry California State University Northridge CA USA. Department of Chemistry University of Copenhagen Copenhagen Denmark. Atmospheric Chemistry Observations and Modeling National Center for Atmospheric Research Boulder CO USA. USDA UV-B Monitoring and Research Program Colorado State University Fort. Collins CO USA. Department of Environment and Geography University of Manitoba Winnipeg MB Canada. Working Group Environmental Epidemiology IUF-Leibniz Research Institute for Environmental Medicine Düsseldorf Germany. Department of Environment and Health School of Public Health University of Bielefeld Bielefeld Germany. School of Environmental Sciences University of Guelph Guelph ON Canada. Retired From Eawag Swiss Federal Institute of Aquatic Science and Technology Dübendorf Switzerland. Center for Sustainable Systems School for Environment and Sustainability University of Michigan Ann Arbor MI USA. Climate Research Finnish Meteorological Institute Helsinki Finland. Indian Academy of Wood Science Bengaluru India. Chemical and Bi

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Study on the synthesis of propylene glycol through cellulose hydrogenation using alkaline promoted Ni-W/β-zeolite catalysts

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Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology 2017年第1期45卷 48-54页

作者： Yang, Long Kong, Ling Shi, Hui-Xian Qin, Shu-Hao Zhang, Wei Gu, Min-Yan Shen, Zheng Zhang, Ya-Lei National Engineering Research Center of Protected Agriculture Tongji University Shanghai200092 China State Key Laboratory of Pollution Control and Resource Reuse Tongji University Shanghai200092 China The National Engineering Research Center for Compounding and Modification of Polymer Materials Guiyang550014 China

A series of Ni-W/β zeolite catalysts were prepared via incipient impregnation method in order to improve the yield of 1, 2-propylene glycol (1, 2-PG) in the alcohol products of cellulose hydrogenation. Under the reaction conditions of 240℃ and 6.0 MPa H2 for 30 min, the complete conversion of cellulose was obtained and the yields of 1, 2 propylene glycol and ethylene glycol (EG) were 19.3% and 45.3%, respectively. Different from other supports, the selectivity of 1, 2-PG was highly improved when β zeolite was used. The selectivity of 1, 2-PG was further improved after the addition of alkaline, and the yield of 1, 2-PG was up to 32.5% especially for Ba(OH)2. The function of alkaline catalysts in the reaction was also discussed based on a series of reactions using glucose as the substrate, indicating that alkaline was favorable for the isomerization of glucose to fructose and thus promoted the conversion of cellulose into 1, 2-PG. After two cycles of reuse, the yield of 1, 2-PG and EG slightly decreased (3.9% and 4.1%, respectively). © 2017, Science Press. All right reserved.

关键词： Cellulose

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Fluorescent Hydrogel-Based Information Storage materials Based on Dual Coding of Time and Temperature

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SSRN 2024年

作者： Hao, Kangan Yu, Runhao Xu, Mengping Li, Rong Liu, Chuan Huang, Anrong Wu, Chong Zuo, Xiaoling Guizhou University China College of Physics and Mechatronic Engineering Guizhou Minzu University Guiyang550025 China College of Materials Science and Engineering Guizhou Minzu University Guiyang550025 China National Engineering Research Center for Compounding and Modification of Polymeric Materials Guiyang550014 China College of Pharmacy Guizhou University of Traditional Chinese Medicine Guiyang550025 China

Fluorescent hydrogels hold great potential to be a class of promising information storage materials to defend against information leakage and distortion of sensitive data. Particularly, the development of hydrogels with peculiarities of upper critical solution temperature (UCST) behavior, time/temperature-dependent security and multifactor-modulated fluorescence is beneficial to endowing the confidential information with a much higher security level. However, integrating these advantageous properties into fluorescent hydrogels intended for information storage and display still remains challenge. In this context, we introduce two class of fluorescent hydrogels containing two different tripyridyl-based chromophores respectively, meanwhile, vat photopolymerization (VP) 3D printing technology is employed here to fabricate them in a green and efficient way. Two groundbreaking 3D code-generating arrays and a new-type cryptographic matrix constituted by these hydrogels are capable of rendering multilevel information decryption and display on a time scale by controlling UV exposure time and heating treatment time. Notably, excitation wavelength-dependent fluorescence specific to TAHEM chromophore and UCST behavior characteristic of poly(AAc-co-AAm) hydrogels make the encrypted information only identifiable at certain conditions, i.e., alternating between 254 nm and 365 nm UV light and heating at 60 °C for 10 min, respectively, commendably providing an additional function of information protection for these fluorescent hydrogels. In conclusion, these properties are expected to enable information storage materials based on fluorescent hydrogels to be applicable in advanced dynamic information encryption, additionally, which can further provide custom-tailored advantages for end-users. © 2024, The Authors. All rights reserved.

关键词： Information leakage

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Multiphasic bone-ligament-bone integrated scaffold enhances ligamentization and graft-bone integration after anterior cruciate ligament reconstruction

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Bioactive materials 2024年第1期31卷 178-191页

作者： Xianrui Xie Jiangyu Cai Dan Li Yujie Chen Chunhua Wang Guige Hou Thorsten Steinberg Bernd Rolauffs Mohamed EL-Newehy Hany EL-Hamshary Jia Jiang Xiumei Mo Jinzhong Zhao Jinglei Wu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative MedicineCollege of Biological Science and Medical EngineeringDonghua UniversityShanghai201620PR China Department of Sports Medicine Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai200233China School of Pharmacy Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of ChinaBinzhou Medical UniversityYantai264003China National Engineering Laboratory for Modern Silk Soochow UniversitySuzhou215123China Division of Oral Biotechnology Center for Dental MedicineMedical Center-University of FreiburgFaculty of MedicineUniversity of FreiburgHugstetter Str.5579106FreiburgGermany G.E.R.N.Research Center for Tissue Replacement Regeneration&NeogenesisDepartment of Orthopedics and Trauma SurgeryFaculty of MedicineMedical Center-Albert-Ludwigs-University of Freiburg79085Freiburg im BreisgauGermany Department of Chemistry College of ScienceKing Saud UniversityP.O.Box 2455Riyadh11451Saudi Arabia

The escalating prevalence of anterior cruciate ligament(ACL)injuries in sports necessitates innovative strategies for ACL *** this study,we propose a multiphasic bone-ligament-bone(BLB)integrated scaffold as a potential *** BLB scaffold comprised two polylactic acid(PLA)/deferoxamine(DFO)@mesoporous hydroxyapatite(MHA)thermally induced phase separation(TIPS)scaffolds bridged by silk fibroin(SF)/connective tissue growth factor(CTGF)@Poly(L-lactide-co-ε-caprolactone)(PLCL)nanofiber yarn braided *** combination mimics the native architecture of the ACL *** mechanical properties of the BLB scaffolds were determined to be compatible with the human *** vitro experiments demonstrated that CTGF induced the expression of ligament-related genes,while TIPS scaffolds loaded with MHA and DFO enhanced the osteogenic-related gene expression of bone marrow stem cells(BMSCs)and promoted the migration and tubular formation of human umbilical vein endothelial cells(HUVECs).In rabbit models,the BLB scaffold efficiently facilitated ligamentization and graft-bone integration processes by providing bioactive *** double delivery of DFO and calcium ions by the BLB scaffold synergistically promoted bone regeneration,while CTGF improved collagen formation and ligament ***,the findings indicate that the BLB scaffold exhibits substantial promise for ACL *** investigation and advancement of this scaffold may yield enhanced results in the management of ACL injuries.

关键词： Electrospun Thermally induced phase separation Integrated scaffold Anterior cruciate ligament reconstruction Graft-bone integration

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