Fabrication of an electrospun nanofibrous scaffold for use in the field of tissue engineering

Post on 25-Feb-2016

36 views 2 download

Tags:

description

Fabrication of an electrospun nanofibrous scaffold for use in the field of tissue engineering. By: Shannon Daily & Tyler Crawford. Purpose. - PowerPoint PPT Presentation

Transcript of Fabrication of an electrospun nanofibrous scaffold for use in the field of tissue engineering

Fabrication of an electrospun nanofibrous scaffold for use in the field

of tissue engineering

By: Shannon Daily & Tyler Crawford

Purpose To create a polycaprolactone mesh

which enables cell activity and seeks to eventually provide an application in the field of tissue engineering toward biomimetic skin graft.

Progress since last meeting Spun 4 more meshes

Visited Janelia Farm and used SEM

Changed procedure slightly

Created Timeline

Electrospun Meshes All 15 wt. % solution using acetic acid

as solvent 15 kV 15cm Used syringe pump (flow rate .02 ml/s)

for first three meshes› Now using pipette to reduce beading

SEM ImagesMesh 1, Image aMagnification: 148.685 µm x 111.514 µm

SEM ImagesMesh 1, Image bMagnification: 11.643 µm x 8.732 µm

SEM ImagesMesh 2, Image aMagnification: 173.875 µm x 130.406 µm

SEM ImagesMesh 2, Image bMagnification: 24.607 µm x 18.455 µm

To be worked on: View SEM images of new PCL meshes

› Visiting Janelia Farm on March 9 Begin varying voltage of pure PCL Create chitosan/PCL solution Begin cell work Updates

› ED› wikipage

BibliographyAkhyari, P., Kamiya, H., Haverich, A., Karck, M., & Lichtenberg, A. (2008). Myocardial tissue engineering: The

extracellular matrix. European Journal of Cardio-Thoracic Surgery, 34, 229-241. doi: 10.1016/j.ejcts.2008.03.062Bhardwaj, N. & Kundu, S. C. (2010). Electrospinning: A fascinating fiber fabrication technique. Biotechnology Advances,

28, 325-347. doi: 10.1016/j.biotechadv.2010.01.004Chong, E.J., Phan, T.T., Lim, I.J., Zhang, Y.Z., Bay, B.H., Ramakrishna, S., & Lim, C.T. (2007). Evaluation of electrospun

PCL/gelatin nanofibrous scaffold for wound healing and layered dermal reconstitution. Acta Biomaterialia, 3, 321-330. doi: 10.1016/j.actbio.2007.01.002

Geng, X., Kwon, O-H., & Jang, J. (2005). Electrospinning of chitosan dissolved in concentrated acetic acid solution. Biomaterials, 26, 5427-5432.

Han, J., Branford-White, C.J., & Zhu, L.M. (2010). Preparation of poly(є-caprolactone)/poly(trimethylene carbonate) blend nanofibers by electrospinning. Carbohydrate Polymers, 79, 214-218. doi: 10.1016/j.carbpol.2009.07.052

Homayoni, H., Ravandi, S.A.H., & Valizadeh, M. (2009). Electrospinning of chitosan nanofibers: Processing optimization. Carbohydrate Polymers, 77, 656-661.

Lowery, J.L., Datta, N., & Rutledge, G.C. (2010). Effect of fiber diameter, pore size and seeding method on growth of human dermal fibroblasts in electrospun poly(є-caprolactone) fibrous mats. Biomaterials, 31, 491-504. doi: 10.1016/j.biomaterials.2009.09.072

Nisbet, D.R., Forsythe, J.S., Shen, W., Finkelstein, D.I., & Horne, M.K. (2009). A review of the cellular response on electrospun nanofibers for tissue engineering. Journal of Biomaterials Application, 24, 7-29.

Pham, Q.P., Sharama, V., & Mikos, A.G. (2006). Electrospinning of polymeric nanofibers for tissue engineering applications: A review. Tissue Engineering, 12,1197-1211.

Shevchenko, R.V., James, S.L., & James, S.E. (2010). A review of tissue-engineered skin bioconstructs available for skin reconstruction. Journal of the Royal Society Interface, 7, 229-258. doi: 10.1098/rsif.2009.0403

Sill, T.J., & von Recum, H.A. (2008). Electrospinning: Applications in drug delivery and tissue engineering. Biomaterials, 29, 1989-2006. doi: 10.1016/j.biomaterials.2008.01.011

Woodruff, M.A., & Hutmacher, D.W. (in press). The return of a forgotten polymer- Polycaprolactone in the 21st century. Progress in Polymer Science. doi: 10.1016/j.progpolymsci.2010.04.002