Electrospinning. Solutions of 10-50 mg/mL 2NapFF were prepared as described above using either NaOH or TBAOH and slowly loaded into disposable polypropylene syringes. A syringe pump (model Alladin-8000, World Precision Instruments, UK) set to a flow rate of 0.2 mL/h supplied solution to a 20G needle tip (Hamilton Kel-F Hub blunt point needle) positively charged to 15 kV by a variable high voltage DC power supply (model 73030, Genvolt, Shropshire, UK). A tip-collector distance of 12 cm was used with a flat, electrically grounded target plate, coated in aluminium foil which was used as the collector material as well as glass microscope slides. Samples were produced in ambient environmental conditions and recorded within the ranges of 21.0-23.3 °C with a relative humidity of 30-40%.