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The journey of multifunctional bone scaffolds fabricated from traditional toward modern techniques

Bio-Design and Manufacturing 2020年第4期3卷 281-306页

作者： ashkan bigham Firoozeh Foroughi Erfan Rezvani Ghomi Mohammad Rafienia Rasoul Esmaeely Neisiany Seeram Ramakrishna Department of Biomaterials Tissue Engineering and NanotechnologySchool of Advanced Technologies in Medicine(ATiM)Isfahan University of Medical SciencesIsfahanIran Department of Materials Science and Engineering Faculty of EngineeringNational University of Singapore9 Engineering Drive 1Singapore 117576Singapore Department of Mechanical Engineering Center for Nanofibers and NanotechnologyNational University of SingaporeSingapore 119260Singapore Biosensor Research Center Isfahan University of Medical SciencesIsfahanIran Department of Materials and Polymer Engineering Faculty of EngineeringHakim Sabzevari University*** SabzevarIran

As a bone scaffold,meeting all basic requirements besides dealing with other bone-related issues-bone cancer and accelerated regeneration-is not expected from traditional scaffolds,but a newer class of scaffolds called *** a clinical point of view,being a multifunctional scaffold means reducing in healing time,direct costs-medicine,surgery,and hospitalization-and indirect costs-loss of mobility,losing job,and *** main aim of the present review is following the multifunctional bone scaffolds trend to deal with both bone regeneration and cancer *** consideration is given to different fabrication techniques which have been applied to yield these materials spanning from traditional to modern ***,the hierarchical structure of bone plus bone cancers and available medicines to them are introduced to familiarize the potential reader of review with the pluri-disciplinary essence of the ***,a brief discussion relating to the future trend of these materials is provided.

关键词： Multifunctional scaffolds Bone cancer Fabrication techniques Bone tissue regeneration

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Bone Injury and Fracture Healing Biology

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Biomedical and Environmental Sciences 2015年第1期28卷 57-71页

作者： Ahmad Oryan Somayeh Monazzah Amin bigham-Sadegh Comparative Pathology Department of Pathology School of Veterinary Medicine Shiraz University Shiraz 71345 Iran Department of Pathology School of Veterinary Medicine Shiraz University Shiraz 71345 Iran Veterinary Surgery Department of Veterinary Surgery and Radiology Faculty of Veterinary Medicine Shahrekord University Shahrekord *** Iran

Bones are organs of the skeletal system, providing shape, mechanical support, and protection to the body and facilitating the movement. In addition, bones contribute to the mineral homeostasis of the body and have recently been found to participate in endocrine regulation of energy metabolism. The well-known limitations associated with clinical use of autografts and allografts continue to drive efforts to develop bone graft substitutes, using the principles of biomaterials and tissue engineering. Under some stressful and continuous compressive conditions, the ability of the bone tissue to tolerate strength decreases. Whenever these forces overcome the toleration of the bone tissue, bone fracture occurs. years

关键词： bone Bone Injury and Fracture Healing Biology

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*** Based FGD By-Products For Use As Stabilization/Solidification Agents

*** Based FGD By-Products For Use As Stabilization/Solidific...

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以石油焦/煤为燃料的大型CFB锅炉优化与环保技术研讨会

作者： Joel H.Beeghly Jerry bigham William Wolfe Dravo Lime Company Research Center.Piltsburgh.Pa 15225 The Ohio State University.Dept.of Agronomy.Columbus.OH 43210 The Ohio State University Dept.of EngineeringColumbusOH 43210

In dry flue gas desulfurization (FGD) systems the sorbent (usually slaked lime,limestone ordolomite) is injected directly into the furnace,into the ductwork after the furnace an lower temperature.,or into a spray dryer *** these processes produce a dry by-product which is removed in theparticulate control equipment,as opposed to wet scrubber system in which the by-product is a slurrycollected separately from the fly *** FGD scrubber by-products from lime or limestone injected directly into the furnace such asthird bed combustion (FBC) and LIMB (lime injected multistage burners) systems,have neutralization,sorption,and cementation propertics that make them potential reagents for hazardous and non-hazardouswaste stabilization because the dry sorbent by-products have high free quicklime (CaO) contents andanhydrous calcium sulfate (CaSO) *** solidification reactions can take place,includinghydration,carbonation,pozzolanic activity and ettringite *** lime injection scrubber by-products such as from duct injection or spray dryer processes maynot be as effective for solidification because the free lime and calcium sulfite and sulfate are hydrateddue to humidification of the gas *** and physical properness of dry by-products from a number of sources for use asstabilization reagents are discussed as well as the reasons for differences among various *** will be made with other by-products,including class C and class F coal fly ash,cementkiln dust and lime kiln *** clean coal technologies using high sulfur coal reacted with lime or limestone had TCLPleachate concentrations of the 8 RCRA toxic metal elements that were low and very close to USEP Adrinking water *** stories involving the use of these materials for stabilization of toxic metals and some oilywastes have been reported and further suggestions are made for beneficial re-use.

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