The selected coaxial electrospinning conditions are as follows: the distance between the needle and the receiver is 18cm, the voltage is 27kV, and the flow rates of the shell and core solutions are 0.2ml/h and 0.1ml/h, respectively.
The selected coaxial electrospinning conditions are as follows: the distance between the needle and the receiver is 18cm, the voltage is 27kV, and the flow rates of the shell and core layer solutions are 0.2ml/h and 0.1ml/h, respectively.
The selected coaxial electrostatic spinning conditions are as follows: the distance between the needle and the receiver is 18cm, the voltage is 27kV, and the flow rates of the shell and core solutions are 0.2ml/h and 0.1ml/h respectively.