Electrospinning coaxial

Bedford, N.M. and Steckl, A.J. (2010) Photocatalytic self cleaning textile fibers by coaxial electrospinning. ACS Applied Materials ej Interfaces, 2, 2448-2455. 

Zhang YZ et al (2004) Preparation of core-shell structured PCL-r-gelatin Bi-component nanofibers by coaxial electrospinning. Chem Mater 16(18) 3406-3409... 

Jiang HL et al (2006) Modulation of protein release from biodegradable core-shell structured fibers prepared by coaxial electrospinning. J Biomed Mater Res B Appl Biomater 79B(1) 50-57... 

Liu JJ et al (2010) Peripheral nerve regeneration using composite poly(lactic acid-caprolactone)/nerve growth factor conduits prepared by coaxial electrospinning. J Biomed Mater Res A 96(1) 13-20... 

Wang C et al (2010) Biodegradable core/shell fibers by coaxial electrospinning processing, fiber characterization, and its application in sustained drug release. Macromolecules 43(15) 6389-6397... 

Miyauchi M, Miao J, linhaidt RJ et al (2010) Conductive cable fibers with insulating surface piepmed by coaxial electrospinning of multi walled nanotubes and cellulose. Biomacromolecules 11 2440-2445... 

Poly[2-methoxy-5-(2 -ethyl-hexyloxy)-l,4-phenylene vinylene] (MEH-PPV) is an excellent conjugated polymer and broadly used in polymer photoelectron devices, but is difficult to electronspin directly. In the work by Zhao et al, core-shell structured nanofibers were fabricated by coaxial electrospinning MEH-PPV (shell) in chlorobenzene and PVP (core) in 1,2-dichloroethane [64]. MEH-PPV was soluble in the above two solvents, which prevented the precipitation of MEH-PPV and enhanced the adhering action between the two polymers in the coaxial electrospinning process. It should be noted that this is an unusual example of core-shell nanofibers where (a nonprocessable) PPV was spun as the shell and not in the core. These uniform core/shell PVP/MEH-PPV nanofibers with a highly fluorescent property can have potential applications in the fabrication of polymer nanophotoelectron devices. 

Q. Zhao, Y. Xin, Z. Huang, S. Liu, C. Yang, and Y. Li, Using poly[2-methoxy-5-(2 -ethyl-hexyloxy)-l,4-phenylene vinylene] as shell to fabricate the highly fluorescent nanofibers by coaxial electrospinning. Polymer, 48,4311-4315 (2007). 

FIGURE 55.1 Diagram showing fiber formation by coaxial electrospinning. 

The electrically charged part and coaxial jet shown in Fig. 1.17 allow to obtain core-shell nanofibers (nanochannels and nanocapsules) by coaxial electrospinning. ... 

Figure 1.17 Common setup and electrically charged part for coaxial jet for electrospinning and core-shell nanofibers nanochannel and capsule by coaxial electrospinning. Reprinted from Ref. 45, Copyright 2010, Fengyu Li, Yong Zhao, and Yanlin Song.

Li R, Zhao Y, and Song Y, 2010. Core-Sheii Nanofibers Nano Channel and Capsule by Coaxial Electrospinning, Nanofibers, Ashok Kumar (Ed.), InTech. ISBN 978-953-7619-86-2,001 10.5772/8166. 

Figure 2.8 Coaxial electrospinning model for producing core-shell nanofibres...

Lee, G.H., Song, J.C. and Yoon, K.B. 2010. Controlled wall thickness and porosity of polymeric hollow nanofibers by coaxial electrospinning. Macmmolecjda 18 571—576. 

Emulsion electrospinning and mainly coaxial electrospinning have been widely employed to produce this kind of scaffold in order to promote a better control of release kinetics (Figure 7.5). In emulsion electrospinning, the biomolecule is solubilized in an aqueous solution normally containing a protein, such as albumin. 

Figure 7.5 Emulsion (a) and coaxial electrospinning (b) systems representations.

PLACL/collagen BMP2 and DEX Emulsion and coaxial electrospinning Bone regeneration [167]... 

PLACL NGF Coaxial electrospinning Conduits for sciatic nerve regeneration [168]... 

PLACL EGF, insulin, Coaxial electrospinning and direct Skin tissue regeneration [169]... 

PCL and hydroxyl- hydrocortisone, and RA VEGF incorporation Coaxial electrospinning Scaffold with angiogenic properties [170]... 

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