Name: postproduction processing of electrospun fibres for tissue engineering
Uploaded: 2012-08-09T13:00:00
Description: Watch this Scientific Journal Video about Postproduction Processing of Electrospun Fibres for Tissue Engineering at JoVE.com

Мы благодарим СИББН финансирования кандидат для свидания г-н Фрейзер.

1. Электропрядения случайных и неприсоединения волокна Электропрядения создает тонкий волокнистый сети с помощью электрического потенциала сделать раствор полимера к заземленным коллектором. Коллекторы могут находиться в очень многих формах и могут быть статическими...

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H., Scutt, A. M., Reilly, G. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Short+bouts+of+mechanical+loading+are+as+effective+as+dexamethasone+at+inducing+matrix+production+by+human+bone+marrow+mesenchymal+stem+cell.">Short bouts of mechanical loading are as effective as dexamethasone at inducing matrix production by human bone marrow mesenchymal stem cell.</a> Eur. Cell Mater. 20, 45-57 (2010).</li><li>Sill, T. J., von Recum, H. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Electrospinning:+applications+in+drug+delivery+and+tissue+engineering.">Electrospinning: applications in drug delivery and tissue engineering.</a> Biomaterials. 29 (13), 1989-2006 (2008).</li><li>Deitzel, J., Kleinmeyer, J., Harris, D., Beck Tan, N. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+effect+of+processing+variables+on+the+morphology+of+electrospun+nanofibers+and+textiles.">The effect of processing variables on the morphology of electrospun nanofibers and textiles.</a> Polymer. 42, 261-272 (2001).</li><li>Fridrikh, S., Yu, J., Brenner, M., Rutledge, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Controlling+the+fiber+diameter+during+electrospinning.">Controlling the fiber diameter during electrospinning.</a> Physical review letters. 90, 1-4 (2003).</li><li>Fong, H., Chun, I., Reneker, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Beaded+nanofibers+formed+during+electrospinning.">Beaded nanofibers formed during electrospinning.</a> Polymer. 40 (16), 4585-4592 (1999).</li><li>Selim, M., Bullock, A. 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W., Wang, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Electrospinning+of+poly(hydroxybutyrate-co-hydroxyvalerate)+fibrous+tissue+engineering+scaffolds+in+two+different+electric+fields.">Electrospinning of poly(hydroxybutyrate-co-hydroxyvalerate) fibrous tissue engineering scaffolds in two different electric fields.</a> Polymer Engineering &amp; Science. 51 (7), 1325-1338 (2011).</li><li>Retzepi, M., Donos, N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Guided+Bone+Regeneration:+biological+principle+and+therapeutic+applications.">Guided Bone Regeneration: biological principle and therapeutic applications.</a> Clinical oral implants research. 21, 567-576 (2010).</li><li>Moreau, J., Caccamese, J., Coletti, D., Sauk, J., Fisher, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tissue+engineering+solutions+for+cleft+palates.">Tissue engineering solutions for cleft palates.</a> Journal of oral maxillofacial. 65, 2503-2511 (2007).</li><li>Yang, F., Both, S., Yang, X., Walboomers, X., Jansen, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Development+of+an+electrospun+nano-apatite/PCL+composite+membrane+for+GTR/GBR+application.">Development of an electrospun nano-apatite/PCL composite membrane for GTR/GBR application.</a> Acta biomaterialia. 5, 3295-3304 (2009).</li><li>Yoshimoto, H., Shin, Y., Terai, H., Vacanti, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+biodegradable+nanofiber+scaffold+by+electrospinning+and+its+potential+for+bone+tissue+engineering.">A biodegradable nanofiber scaffold by electrospinning and its potential for bone tissue engineering.</a> Biomaterials. 24, 2077-2082 (2003).</li><li>Telemeco, T., Ayres, C., Bowlin, G., Wnek, G., Boland, E., Cohen, N., Baumgarten, C., Mathews, J., Simpson, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Regulation+of+cellular+infiltration+into+tissue+engineering+scaffolds+composed+of+submicron+diameter+fibrils+produced+by+electrospinning.">Regulation of cellular infiltration into tissue engineering scaffolds composed of submicron diameter fibrils produced by electrospinning.</a> Acta biomaterialia. 1, 377-385 (2005).</li></ol>

Электропрядения очень популярный метод получения леса для тканевой инженерии. 14, 15, 16 В то время как относительно простые по производству основных леса electrospun для экспериментального использования техники также является сложной и многогранной со многими переменными. 6 Суще?...

<table border="1"><tbody><tr><td> Название реагента </td><td> Компания </td><td> Номер по каталогу </td><td> Комментарии </td></tr><tr><td> Поли молочной-со-гликолевой кислоты </td><td> Sigma Aldrich </td><td></td><td></td></tr><tr><td> Поли молочная кислота </td><td> Sigma Aldrich </td><td> 81273 </td><td> Характеристической вязкости ~ 2.0dl / г </td></tr><tr><td> Поли ε-капролактона </td><td> Sigma Aldrich </td><td></td><td></td></tr><tr><td> Поли гидроксибутирата-со-hydroxyvalerate 12:01 </td><td> Гудфеллоу </td><td> 578-446-59 </td><td> PHB88/PHV12 </td></tr><tr><td> Дихлорметан </td><td> Sigma Aldrich или Фишера </td><td> 270997 или D/1850/17 </td><td> &gt; 99,8% содержит 50-150ppm амилен стабилизатор </td></tr><tr><td> 50 разноцветных воздушных шаров </td><td> Уилкинсон Магазины оборудования ООО </td><td> 0105790 </td><td></td></tr><tr><td> Коза анти-IgG кролика (ФК): FITC </td><td> AbDserotec </td><td> STAR121F </td><td></td></tr><tr><td> Кролик анти-человеческий альфа-эластин </td><td> AbDserotec </td><td> 4060-1060 </td><td></td></tr><tr><td> Винтовая крышка GL45 PP 2 порта, р / 2 </td><td> SLS </td><td> 1129750 </td><td></td></tr><tr><td> 4 &#39;,6-диамидино-2-фенилиндола дигидрохлорид </td><td> Sigma Aldrich </td><td> 32670 </td><td></td></tr><tr><td> CellTracker зеленый CMFDA </td><td> Invitrogen </td><td> C7025 </td><td></td></tr><tr><td> CellTracker красный CMTX </td><td> Invitrogen </td><td> C34552 </td><td></td></tr></tbody></table>

postproduction processing of electrospun fibres for tissue engineering

Electrospinning is a commonly used and versatile method to produce scaffolds (often biodegradable) for 3D tissue engineering.1, 2, 3 Many tissues in vivo undergo biaxial distension to varying extents such as skin, bladder, pelvic floor and even the hard palate as children grow. In producing scaffolds for these purposes there is a need to develop scaffolds of appropriate biomechanical properties (whether achieved without or with cells) and which are sterile for clinical use. The focus of this paper is not how to establish basic electrospinning parameters (as there is extensive literature on electrospinning) but on how to modify spun scaffolds post production to make them fit for tissue engineering purposes - here thickness, mechanical properties and sterilisation (required for clinical use) are considered and we also describe how cells can be cultured on scaffolds and subjected to biaxial strain to condition them for specific applications.
Electrospinning tends to produce thin sheets; as the electrospinning collector becomes coated with insulating fibres it becomes a poor conductor such that fibres no longer deposit on it. Hence we describe approaches to produce thicker structures by heat or vapour annealing increasing the strength of scaffolds but not necessarily the elasticity. Sequential spinning of scaffolds of different polymers to achieve complex scaffolds is also described. Sterilisation methodologies can adversely affect strength and elasticity of scaffolds. We compare three methods for their effects on the biomechanical properties on electrospun scaffolds of poly lactic-co-glycolic acid (PLGA).
Imaging of cells on scaffolds and assessment of production of extracellular matrix (ECM) proteins by cells on scaffolds is described. Culturing cells on scaffolds in vitro can improve scaffold strength and elasticity but the tissue engineering literature shows that cells often fail to produce appropriate ECM when cultured under static conditions. There are few commercial systems available that allow one to culture cells on scaffolds under dynamic conditioning regimes - one example is the Bose Electroforce 3100 which can be used to exert a conditioning programme on cells in scaffolds held using mechanical grips within a media filled chamber.4 An approach to a budget cell culture bioreactor for controlled distortion in 2 dimensions is described. We show that cells can be induced to produce elastin under these conditions. Finally assessment of the biomechanical properties of processed scaffolds cultured with or without cells is described.

Watch this Scientific Journal Video about Postproduction Processing of Electrospun Fibres for Tissue Engineering at JoVE.com

Postproduction Processing of Electrospun Fibres for Tissue Engineering

Electrospun леса могут быть обработаны пост-продакшн для применения тканевой инженерии. Здесь мы опишем методы для прядения комплекс лесов (последовательным спиннинг), для изготовления толстых лесов (на несколько слоев с использованием тепла или пара, отжиг), для достижения стерильности (асептического производства или производства стерилизации должности) и для достижения соответствующих биомеханические свойства.

Озвучка обработка волокна Electrospun для тканевой инженерии

Electrospinning is a commonly used and versatile method to produce  scaffolds (often biodegradable) for 3D tissue engineering.1, 2, 3 Many tissues in vivo ...

Research

JoVE Journal

Bioengineering

Fabrication of Biologically Derived Injectable Materials for Myocardial Tissue Engineering

Производство биологически Производные инъекций Материалы для тканевой инженерии миокарда

This protocol provides methods for the preparation of an injectable extracellular matrix (ECM) gel for myocardial tissue engineering applications.  ...

Elastomeric PGS Scaffolds in Arterial Tissue Engineering

Эластомерные PGS Строительные леса в Артериальная тканевой инженерии

Cardiovascular disease is one of the leading cause of mortality in the US and especially, coronary artery disease increases with an aging population and ...

Capillary Force Lithography for Cardiac Tissue Engineering

Капиллярная сила Литография для сердечной тканевой инженерии

Cardiovascular disease remains the leading cause of death worldwide1. Cardiac tissue engineering holds much promise to deliver groundbreaking medical ...

Design of a Biaxial Mechanical Loading Bioreactor for Tissue Engineering

Дизайн двухосных механических биореактор загрузка для тканевой инженерии

We  designed a loading device that is capable of applying uniaxial or biaxial  mechanical strain to a tissue engineered biocomposites fabricated for  ...

Tissue Engineering of a Human 3D in vitro Tumor Test System

Tissue Engineering of a Human 3D in vitro Tumor Test System

Тканевая инженерия человеческого 3D<em&gt; В пробирке</em&gt; Опухоль Тестовая система

Cancer is one of the leading causes of death worldwide.  Current therapeutic strategies are predominantly developed in 2D culture  systems, which ...

Electrospun Fibrous Scaffolds of Poly(glycerol-dodecanedioate) for Engineering Neural Tissues From Mouse Embryonic Stem Cells

Electrospun Fibrous Scaffolds of Polyglycerol-dodecanedioate for Engineering Neural Tissues From Mouse Embryonic Stem Cells

Electrospun волокнистых Строительные леса поли (глицерин-dodecanedioate) инженерного нервных тканях От эмбриональных стволовых клеток мыши

For tissue engineering applications, the preparation of biodegradable and biocompatible scaffolds is the most desirable but challenging task. &#160;Among ...

Engineering 3D Cellularized Collagen Gels for Vascular Tissue Regeneration

Инженерные 3D Cellularized Коллаген Гели для сосудистой регенерации ткани

Synthetic materials are known to initiate clinical complications such as inflammation, stenosis, and infections when implanted as vascular substitutes. ...

Preparation of Thermoresponsive Nanostructured Surfaces for Tissue Engineering

Приготовление Thermoresponsive наноструктурированных поверхностей для тканевой инженерии

Thermoresponsive poly(N-isopropylacrylamide) (PIPAAm)-immobilized surfaces for controlling cell adhesion and detachment were fabricated by the ...

Tissue Engineering by Intrinsic Vascularization in an In Vivo Tissue Engineering Chamber

Tissue Engineering by Intrinsic Vascularization in an In Vivo Tissue Engineering Chamber

Тканевая инженерия по искробезопасности васкуляризации<em&gt; В Vivo</em&gt; Tissue Engineering палата

In reconstructive surgery, there is a clinical need for an alternative to the current methods of autologous reconstruction which are complex, costly and ...

Isolation of Murine Adipose Tissue-derived Microvascular Fragments as Vascularization Units for Tissue Engineering

Выделение мышиных полученных из жировой ткани микрососудистых Фрагментов как васкуляризация единицы для тканевой инженерии

A functional microvascular network is of pivotal importance for the survival and integration of engineered tissue constructs. For this purpose, several ...