Electrospinning components

Figure 6. Schematic showing the main components of an electrospinning apparams.

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... 

As a major component of the natural extracellular matrix, HA has also attracted considerable attention in electrospinning. However, it is very difficult to electrospin an aqueous HA solution because its unusual high viscosity and surface tension both hinder the electrospinning process. In addition, the... 

Bone is a natural composite comprised of type I collagen and calcium phosphate minerals, of which nanocrystalline apatite is the main component [39, 40]. Certain osteoconductive bioceramics exert an effect on bone cell attachment and growth factor binding or release, and can accelerate the treatment of bone defects [41-43]. Polymer composite scaffolds can be produced, via electrospinning, which contain a specific amount of electrical charge in order to form non-woven fibrous meshes with fibre dimensions in the nano- to microscale [44-46]. 

Antibacterial membranes with a multicomponent system containing Ag, AgBr, Ti02, and hydroxyapatite as four active components were used to obtain more efficient antibacterial activity. Additionally polyurethane nanofiber webs containing silver nanoparticles using the electrospinning technique were obtained with the stability of nanoparticles after washing cycles... 

Miao J., Miyauchi M., Simmons T. R, Dordick J. S., and Linhardt R J., Electrospinning of nanomaterials and applications in electronic components and devices,/ Nanoscl Technol, 2010,10,5507-5519. 

Non-woven fiber mafs composed from PPE and PS blends have been prepared by electrospinning of PPE/PS solutions in a mixture of chloroform and hex-alluoroisopropanol [55]. The materials showed a better electrospinnability which resulted in thinner fibers with diameters of200 nm-1.3 xm than fibers obtained from the pure components. This arises from a proper balance of the electrical conductivity and interaction with the electrospinning solvent. 

Composite materials often show a good balance between toughness, strength and improved characteristics compared to individual components. PCL has been one of the most popular polymers used for bone TE scaffolds because of its biocompatibility, slow degradation and ease of electrospinning from a variety of solvents. MSC from rats cultured on electrospun PCL scaffolds, supplemented with osteogenic media... 

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