Besides surface charge, nanomaterials has unique surface properties and surface energy.

tnx dear jia

may the electrospinnig charge the nanofibers surfaces? if yes, what charge?

just check with the zeta potential.. I have one paper and one more paper in our group

http://www.sciencedirect.com/science/article/pii/S1369703X14001454

http://pubs.acs.org/doi/abs/10.1021/ie303273s

Surface charge is a characteristic of materials which is strongly dependent on surface chemistry of particles or fibers and pH of colloid.

the only way to measuring surface charge is using zeta sizer, but you can use potentiostat or galvanostat regarding to measuring molecular charge.

hope this be helpful.

Tnx Mr Shaki and Singh

Dear Strum

Thanks alot...