Viscosity measurements were recorded at ambient temperature (20.6 o C) using a
SV-10 Sine-wave Vibro viscometer (A&D, Japan). Solutions were poured into a plastic holder and the metal vibrators were clamped down when they had reached the surface of the solution. A reading for viscosity was then recorded and the metal vibrators were cleaned using purified water between each new sample solution reading.
Ali R., Mehta P., Kyriaki Monou P., Arshad M.S., Panteris E., Rasekh M., Singh N., Qutachi O., Wilson P., Tzetzis D., Chang M.W., Fatouros D.G, & Ahmad Z. (2020). Electrospinning/electrospraying coatings for metal microneedles: A design of experiments (DOE) and quality by design (QbD) approach. European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 156.