| abstract |
The nanofibers and methods of making described herein include (a) non-homogeneous charge density; (b) multiple regions of high charge density; And / or (c) charged nanoparticles or chargeable nanoparticles. In one aspect, the present invention meets the need for a filter medium capable of high performance (e.g., removal of particles of sizes between 0.1 and 0.5 μm) with low pressure drop, although not limited within this view. |