Electrospinning Nanomaterials
Electrospinning & Electrospraying
Electrospinning is a manufacturing process for the fabrication of fibers (100 nm – 10 µm) into a nonwoven mesh. Nanofibers are produced by passing a polymeric solution through an electric field. The rate of solvent evaporation and elongation of the polymeric threads results in the formation nanofibers. Electrospinning can fabricate fibers of tunable diameters, porosity and mechanical properties. These fibers can be used to develop sheets, coatings of existing devices and fabricate tubular structures.
Electrospraying is a process that can be used to fabricate particles and films of polymers. Utilizing the same principles of electrospinning and modulating the molecular weight and concentration of the polymer, solvent and working distance between the needle and collector results in the fabrication of particles instead of fibers.
- Formulated from a wide range of polymers and solvent combinations
- Tunable fiber diameter range from 100 nm to 10 µm
- Environmentally friendly green solvents can be utilized for sample preparation
- Functionalization of fibers with incorporated additives including API’s or catalyst particles
- Variable mat thickness (10 µm – 1 mm) and high throughput preparation on roll to roll converting system
- Deposition as a coating onto 3D medical devices. eg: nitinol meshes with and without PET dressings
Particles
- Single step preparation of dry particles
- Controlled fabrication of multi layered core shell particles
- Encapsulation of API’s for controlled release applications
- Preparation of composite particles with incorporated catalyst nanoparticles
- Formulations can be incorporated into electrospun fiber meshes for hybrid structures
Films
- Controlled deposition of homogenous films with a thickness of 10 µm – 100 µm
- Application onto nonuniform substrates with complex geometries
- Solution based approach that reduces waste
- Easily fabricated from a wide range of polymers including blends with incorporated additives
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