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Reduced graphene oxide supersonically sprayed on wearable fabric and decorated with iron oxide for supercapacitor applications

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Journal of Materials Science & Technology 2021年第23期82卷 47-56页

作者： Ali Aldalbahi Edmund Samuel Bander S.Alotaibi hany El-hamshary Sam S.Yoon Department of Chemistry College of ScienceKing Saud UniversityRiyadh11451Saudi Arabia School of Mechanical Engineering Korea UniversitySeoul136-713Republic of Korea

We demonstrate the fabrication of wearable supercapacitor *** electrodes were applied to wearable fabric by supersonically spraying the fabric with reduced graphene oxide(r GO)followed by decoration with iron oxide(Fe_(2)O_(3))nanoparticles via a hydrothermal *** integration of iron oxide with r GO flakes on wearable fabric demonstrates immense potential for applications in high-energystorage *** synergetic impact of the intermingled r GO flakes and Fe_(2)O_(3) nanoparticles enhances the charge transport within the composite electrode,ultimately improving the overall electrochemical *** advantage of the porous nature of the fabric,electrolyte diffusion into the active r GO and Fe_(2)O_(3) materials was significantly enhanced and subsequently increased the electrochemical interfacial *** effect of the Fe_(2)O_(3) concentration on the overall electrochemical performance was *** optimal composition yields a specific capacitance of 360 F g^(-1) at a current density of 1 Ag^(-1) with a capacitance retention rate of 89%after 8500 galvanostatic cycles,confirming the long-term stability of the Fe_(2)O_(3)/r GO fabric electrode.

关键词： Supersonic spraying Conductive textile Wearable energy devices Reduced graphene oxide Iron oxide Supercapacitor

A coupled catalyst composed of CoFe_(2)O_(4) magnetic nanoparticle and[HMIM]Br-FeCl_(3) to intensify the oxidative desulfurization of FCC diesel

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Green Chemical Engineering 2021年第4期2卷 441-449页

作者： Yanlin Zhang Xinyu Zhang Guangren Yu Xiaochun Chen Ahmed A.Abdeltawab hany El-hamshary Beijing Key Laboratory of Membrane Science and Technology&College of Chemical Engineering Beijing University of Chemical TechnologyBeijing100029China Department of Chemistry College of ScienceKing Saud UniversityRiyadh11451Saudi Arabia

Ionic liquids have been extensively studied as solvents or catalysts for oxidative desulfurization(ODS)of diesel fuel,but it is still a challenge to reduce the desulfurization time and *** this work,a new highly efficient desulfurization system composed of CoFe_(2)O_(4) magnetic nanoparticle,[HMIM]Br-FeCl_(3) and H_(2)O_(2) was developed for the ODS of FCC diesel *** desulfurization performances were investigated including desulfurization time,temperature,volume ratio of IL/oil,O/S molar ratio,dosage of CoFe_(2)O_(4),FeCl_(3) content in ILs,regeneration,and reuse of catalyst and *** to the coupled catalytic roles of CoFe_(2)O_(4) magnetic nanoparticle and[HMIM]Br-FeCl_(3),where Co2t and Fe3t interact with H_(2)O_(2) to produce ·OH radical that converts S-compounds into sulfone and sulfoxide compounds,such a desulfurization system is highly effective in removing S-compound in diesel *** S-content in FCC diesel fuel was reduced from the original 272.8 ppm to 0.5 ppm with 99.82%S-removal efficiency after one step within 8 minunder the optimal conditions of 25℃,8 min,V(IL/oil)=1:10,O/S=20,5 wt%CoFe_(2)O_(4) dosage and n([HMIM]Br)/n(FeCl_(3))=1:1;the desulfurization performance is much better in desulfurization time and steps than other desulfurization systems reported *** desulfurization system can be regenerated and reused without remarkable loss of desulfurization activity.A desulfurization mechanism was proposed.

关键词： CoFe_(2)O_(4)magnetic nanoparticle Ferric chloride ionic liquids Oxidative desulfurization

The comparison of the Wnt signaling pathway inhibitor delivered electrospun nanoyarn fabricated with two methods for the application of urethroplasty

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Frontiers of Materials Science 2016年第4期10卷 346-357页

作者： Xuran GUO Kaile ZHANG Mohamed EL-AASSAR Nanping WANG hany EL-hamshary Mohamed EL-NEWEHY Qiang FU Xiumei MO State Key Lab for Modification of Chemical Fibers & Polymer Materials College of Chemistry & Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China Department of Urology Affiliated Sixth People's Hospital Shanghai Jiaotong University Shanghai 200030 China Polymer Materials Research Department Advanced Technology and New Material Institute City of Scientific Research and Technological Applications (SRTA-City) New Borg El-Arab City Alexandria 21934 Egypt Shanghai Aquatic Product Research Institute Shanghai 200030 China Department of Chemistry College of Science King Saud University Riyadh i 1451 Saudi Arabia Department of Chemistry Faculty of Science Tanta University Tanta 31527 Egypt Shandong International Biotechnology Park Development Co. Ltd. Shanghai 200030 China

Urethral strictures were common disease caused by over-expression of extracellular matrix from fibroblast. In this study, we compare two nanoyarn scaffolds for improving fibroblasts infiltration without inhibition the over-expression of extracellular matrix. Collagenlpoly（L-lactide-co-caprolactone）（ColIP（LLA-CL）） nanoyarn scaffolds were prepared by conjugated electrospinning and dynamic liquid electrospinning, respectively, in addition, co-axial electrospinning technique was combined with the nanoyarn fabrication process to produce nanoyarn scaffolds loading Wntsignaling pathway inhibitor. The mechanical properties of the scaffolds were examined and morphology was observed by SEM. Cell morphology, proliferation and infiltration on the scaffolds were investigated by SEM, MTT assay and H＆E staining, respectively. The release profiles of different scaffolds were determined using HPLC. The results indicated that cells showed an organized morphology along the nanoyarns and considerable infiltration into the nanoyarn scaffolds prepared by dynamic liquid electrospinning （DLY）. It was also observed that the DLY significantly facilitate cell proliferation. The D-DLY could facilitate the infiltration of the fibroblasts and could be a promising scaffold for the treatment of urethra stricture while it may inhibit the collagen production.

关键词： biomaterials nanoyarn electrospinning inhibitor

Regulation of nerve cells using conductive nanofibrous scaffolds for controlled release of Lycium barbarum polysaccharides and nerve growth factor

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Regenerative Biomaterials 2023年第1期10卷 919-932页

作者： Jing Wang Yuan Liu Minmin Lv Xiaoli Zhao Kwok Fai So Hui Li Mohamed EL-Newehy hany EL-hamshary Yosry Morsi Xiumei Mo Research Center for Human Tissues and Organs Degeneration Institute of Biomedicine and BiotechnologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055P.R.China Department of Orthopedics Shanghai Sixth People’s HospitalShanghai201306P.R.China University of Hong Kong-Shenzhen Hospital Shenzhen518053P.R.China State Key Laboratory of Brain and Cognitive Sciences The University of Hong KongPokfulamHong KongP.R.China Department of Ophthalmology The University of Hong KongPokfulamHong KongP.R.China Guangdong-Hong Kong-Macao Institute of CNS Regeneration Jinan UniversityGuangzhouP.R.China Department of Chemistry College of ScienceKing Saud UniversityRiyadh 11451P.O.Box 2455Saudi Arabia Faculty of Engineering and Industrial Sciences Swinburne University of TechnologyBoroondaraVIC 3122Australia 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 UniversitySongjiangShanghai201600P.R.China

Currently,more and more patients suffer from peripheral nerve injury due to trauma,tumor and other causes ***-based nerve conduits are increasingly recognized as a potential alternative to nerve autografts for the treatment of peripheral nerve ***,an ideal nerve conduit must offer topological guidance and biochemical and electrical signal transduction *** this work,aligned conductive nanofibrous scaffolds comprising polylactic-co-glycolic acid and multiwalled carbon nanotubes(MWCNTs)were fabricated via coaxial electrospinning,and nerve growth factor(NGF)and Lycium barbarum polysaccharides(LBP)purified from the wolfberry were loaded on the core and shell layers of the nanofibers,*** were confirmed to accelerate long-distance axon regeneration after severe peripheral nerve *** addition,the synergistic promotion of LBP and NGF on nerve cell proliferation and neurite outgrowth was *** were introduced into the aligned fibers to further increase the electrical conductivity,which promoted the directional growth and neurite extension of neurons in ***,the combination of conductive fibrous scaffolds with electrical stimulation that mimics endogenous electric fields significantly promoted the differentiation of PC12 cells and the axon outgrowth of *** on robust cell-induced behaviors,conductive composite fibers with optimized fiber alignment may be used for the promotion of nerve recovery.

关键词： conductive nanofibrous scaffold LBP NGF nerve cells electrical stimulation

Fabrication and characterization of Antheraea pernyi silk fibroin-blended P（LLA-CL） nanofibrous scaffolds for peripheral nerve tissue engineering

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Frontiers of Materials Science 2017年第1期11卷 22-32页

作者： Juan WANG Binbin SUN Muhammad Aqeel BHUTTO Tonghe ZHU Kui YU Jiayu BAO Yosry MORSI hany EL-hamshary Mohamed EL-NEWEHY Xiumei MO State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Chemistry Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China Shandong International Biotechnology Park Development Co. Ltd. Yantai 264670 China College of Materials Science and Engineering Donghua University Shanghai 201620 China Faculty of Engineering and Industrial Sciences Swinburne University of Technology Hawthorn Vic 3122 Australia Department of Chemistry College of Science King Saud University Riyadh 11451 Saudi Arabia Department of Chemistry Faculty of Science Tanta University Tanta 31527 Egypt

Electrospun nanofibers have gained widespreading interest for tissue engineering application. In the present study, ApF/P（LLA-CL） nanofibrous scaffolds were fabricated via electrospinning. The feasibility of the material as tissue engineering nerve scaffold was investigated in vitro. The average diameter increased with decreasing the blend ratio of ApF to P（LLA-CL）. Characterization of 13C NMR and FTIR clarified that there is no obvious chemical bond reaction between ApF and P（LLA-CL）. The tensile strength and elongation at break increased with the content increase of P（LLA-CL）. The surface hydrophilic property of nanofibrous scaffolds enhanced with the increased content of ApF. Cell viability studies with Schwann cells demonstrated that ApFIP（LLA-CL） blended nanofibrous scaffolds significantly promoted cell growth as compare to P（LLA-CL）, especially when the weight ratio of ApF to P（LLA-CL） was 25：75. The present work provides a basis for further studies of this novel nanofibrous material （ApF/P（LLA-CL）） in peripheral nerve tissue repair or regeneration.

关键词： KEYWORDS: ApFIP(LLA-CL) electrospinning nanofibers scaffolds Schwann cells peripheral nerve tissue engineering

On the development of modular polyurethane-based bioelastomers for rapid hemostasis and wound healing

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Regenerative Biomaterials 2023年第1期10卷 640-654页

作者： Wanxin Guo Binan Zhao Muhammad Shafiq Xiao Yu Yihong Shen Jie Cui Yujie Chen Pengfei Cai Zhengchao Yuan Mohamed EL-Newehy hany EL-hamshary Yosry Morsi Binbin Sun Jianfeng Pan Xiumei Mo 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 UniversitySongjiangShanghai 201620P.R.China Department of Orthopedics Shanghai Tongji HospitalSchool of MedicineTongji UniversityPutuoShanghai 200065China Department of Chemical Engineering Faculty of EngineeringGraduate SchoolKyushu UniversityFukuoka 819-0395Japan Department of Chemistry College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Faculty of Engineering and Industrial Sciences Swinburne University of TechnologyBoroondaraVIC 3122Australia Department of Orthopedics Shanghai Tenth People’s HospitalSchool of MedicineTongji UniversityJinganShanghai 200072China

Massive hemorrhage may be detrimental to the patients,which necessitates the advent of new materials with high hemostatic efficiency and good *** objective of this research was to screen for the effect of the different types of bio-elastomers as hemostatic dressings.3D loose nanofiber sponges were prepared;PU-TA/Gel showed promising ***(PU)was synthesized and electrospun to afford porous sponges,which were crosslinked with glutaraldehyde(GA).FTIR and 1H-NMR evidenced the successful synthesis of *** prepared PU-TA/Gel sponge had the highest porosity and water absorption ***,PU-TA/Gel sponges exhibited cytocompatibility,negligible hemolysis and the shortest clotting ***-TA/Gel sponge rapidly induced stable blood clots with shorter hemostasis time and less bleeding volume in a liver injury model in ***,PU-TA/Gel sponges also induced good skin regeneration in a full-thickness excisional defect model as revealed by the histological *** results showed that the PU-TA/Gel-based sponges may offer an alternative platform for hemostasis and wound healing.

关键词： polyurethane electrospinning hemostasis material wound healing tissue regeneration regenerative medicine

Annual Discharge and Sediment Load Variation in Jialing River During the Past 50 Years

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Journal of Mountain Science 2011年第5期8卷 664-676页

作者： DING Wenfeng hany ei Kateb Soil and Water Conservation Department of Yangtze River Scientific Research Institute Wuhan 430010 China Institute of Silviculture Teehnische Universitat Miinchen Hans-Carl-von-Carlowitz-Platz 2D-85354 Freising Germany

Annual discharge and annual suspended sediment loads of Beipei Hydrological Station of the Jialing River catchment were analyzed to describe the trend of Jialing River over the last five decades (1956-2006). These loads were also analyzed to ascertain the influential factors associated with its variation with the help of Kendall's Tau-b correlation analysis and regression analysis. The results indicated that the Jialing River annual discharge showed no significant trend at >95% confidence level while the annual sediment load appeared to have a significant decrease trend over the last 50 years. A decrease in the annual sediment load was particularly apparent after the year 1985, at which a substantial shift in the sediment level occurred. This shift is attributed to the construction of numerous dams in 1980s. However, after the year of 1985, two periodical stages (1986-1991 and 1992-2006) with distinct sediment load and sediment-runoff ratio were identified. The period 1992-2006 is characterised by low sediment load, which is most probably due to the impact of large scale of soil and water conservation, which took place at the end of the 1980s. Last, models describing the relationship between the discharge and the sediment load, discharge and sediment-runoff ratio as well as between the sediment load and sediment-runoff ratio were constructed.

关键词： Jialing River Discharge Sediment variation

Multi‑Functional Fibrous Dressings for Burn Injury Treatment with Pain and Swelling Relief and Scarless Wound Healing

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Advanced Fiber Materials 2023年第6期5卷 1963-1985页

作者： Zhengchao Yuan Yue Zhao Muhammad Shafiq Jiahui Song Jing Hou Yuqing Liang Xiao Yu Yujie Chen Fan Yu Mohamed EL‑Newehy hany EL‑hamshary Yosry Morsi Shichao Jiang Hui Zheng Xiumei Mo 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 UniversityShanghai 201620People’s Republic of China Department of Chemical Engineering Faculty of EngineeringGraduate SchoolKyushu UniversityFukuoka 819‑0395Japan United Graduate School of Drug Discovery and Medical Information Sciences Gifu University1‑1 YanagidoGifu 501‑1193Japan Department of Orthopedics Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250021People’s Republic of China Department of Chemistry College of ScienceKing Saud UniversityP.O.Box 245511451 RiyadhSaudi Arabia Faculty of Engineering and Industrial Sciences Swinburne University of TechnologyBoroondaraVIC 3122Australia Medical Science and Technology Innovation Center Shandong First Medical University&Shandong Academy of Medical SciencesJinan 250117People’s Republic of China Department of Thoracic Surgery Shanghai Pulmonary HospitalTongji University School of MedicineShanghai 200443People’s Republic of China

As one of the most common forms of skin injuries,skin burns are often accompanied by edema pain,suppuration of infection,slow tissue regeneration,and severe scar formation,which significantly delay wound healing as well as affect the quality of *** prepared multifunctional electrospun poly(L-lactide-co-glycolide)/gelatin(P/G)-based dressings to synergistically harness the therapeutic benefits of peppermint essential oil(T),burn ointment(B),and Oregano essential oil(O)(P/G@TBO)for skin regeneration in punch and burn injury *** P/G@TBO can afford the sustained release of bioactive cues for up to 72 h as well as remarkably promote cell migration(ca.P/G@TBO,89%*** group,51%)at 24 *** P/G@TBO membranes also showed significant angiogenic effect as well as antibacterial and anti-inflammatory properties than that of the control group in ***,P/G@TBO dressings enabled fast wound healing(ca.P/G@TBO,100%wound closure *** group,95%)in a full-thickness excisional defect model up to 14 days in *** evaluation of membranes in different animal models,including tail wagging model,facial itch model,and hot burn injury model showed significant pain relieve effect as well as itching and swelling relief functions during earlier stages of wound *** were next transplanted into a scalded wound model in rats and an ear punch wound model in rabbits,which manifested antibacterial and anti-inflammatory properties and promoted re-epithelialization to achieve scarless wound healing percentage wound closure at day 28:P/G@TBO,96%*** group 66%.Taken together our approach of simultaneously harnessing T,B,and O to enable multifunctionality to fibrous dressings may hold great promise for burn wound healing applications and other related disciplines.

关键词： Burn injury Wound healing Skin regeneration Pain and swelling relief Nanofiber membrane

Relation between Carotid Artery Plaques Characteristics as a Predictor of Haemodynamics Changes after Carotid Artery Stenting

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Neuroscience & Medicine 2021年第1期12卷 12-21页

作者： hany Mahmoud Zaki ei-Dine Mohamed Khaled Elewa Tamer Mahmoud Elsayed Roushdy Omar Mohamed Hashim Mohamed Hamdy Ibrahim Neurology Department Faculty of Medicine Ain Shams University Cairo Egypt Railway Hospital Ministry of Health Cairo Egypt

Objectives: To study relationship between carotid artery plaques characteristics and haemodynamic changes after carotid stenting. Patients and Methods: This observational prospective (pilot) study included 20 patients—who underwent CAS. The study was carried out in Ain shams university hospitals—Railway hospital (ERMED) and Suez insurance hospital from December 2018 to February 2020. Inclusion criteria, Symptomatic (defined as amaurosis fugax, TIA, Minor stroke or Major stroke) stenosis > 70%. Asymptomatic stenosis > 80% (accidentally discovered during pre-operative assessment for CABG and during full assessment for irrelevant stroke). Results: Regarding to plaque character for degree of stenosis, calcification and ulceration revealed significantly higher degree of stenosis in hemodynamic events group (P = 0.024). On the other hand, that there was no statistically significant difference between the two groups as regard calcification, ulceration and lesion location. Conclusion: The study revealed that HI is a common occurrence following CAS procedures and significantly higher degree of stenosis in hemodynamic events group. Plaque shape, ulcerations hardly affect haeodynamic instability after carotid stenting.

关键词： Carotid Artery Plaques Carotid Stenting Haemodynamics Carotid Stenosis