The results of finite element simulation suggest that the electric field is more concentrated at each tip of needle piece compared with that for the disc and coil spinnerets
. For the proposed electrospinning system, the electric field is increasingly more concentrated at each tip of needle piece and their distribution over these tips also becomes more uniform when increasing the spacing between the needle pieces.
The distance between the spinnerets
has to be large enough to let fibres elongate and dry.
According to previous observations on this species, individuals show longer ALS (anterior lateral spinnerets
) compared to other burrowing wolf spider species (Simo et al.
The measurement of the total body length including cephalothorax and abdomen without spinnerets
was made using a calliper.
The maxillary serrula (toothed keel) is absent, the posterior lateral spinnerets
are shorter than the abdomen and an unpaired claw on the tarsi is absent.
Two syringe pumps (KDS100 and KDS200, Cole-Parmer, IL, USA), a high-voltage power supply (ZGF 60kV/2mA, Shanghai Sute Corp., Shanghai, China), and a homemade concentric spinneret
were used to conduct the electrospinning process.
Zodariidae is a medium-sized family of spiders distinguished by their long anterior spinnerets
on a common base, and other reduced spinnerets
screws; granulator dies; filter bundles; polymer pumps; tubes; hot runners; nozzles; film dies and filters; nonwoven dies and spinnerets
; spin-packs; spinnerets
; spinning melt pumps and much more of any polymer processing industry equipment.
Each strand is made up of special proteins linked together in a long chain by a spider's silk-producing organs, called spinnerets
. Once locked in place, the proteins are hard to separate, yet they can bend.
Many create multiple silks with different functions, made from complex structures called spinnerets
with arrays of spigots and their own musculature.
These spiderlings have just hatched from a spherical silken egg sac, which the female dragged around behind her, attached to her spinnerets
(wolf spiders do not make a permanent web).
Next the team had to prove that the silk had come from the spiders' feet and not their web-spinning organs, known as spinnerets