Biofunctionalized Nanofibers Using Arthrospira (Spirulina) Biomass and Biopolymer

Table 1

Source of polyhydroxybutyrate (PHB) and polyhydroxybutyrate-co-valerate (PHB-HV) and the composition of the solutions used to manufacture nanofibers constructed from PHB or PHB containing 5% or 12% (w/w) commercially available PHB-HV and biofunctionalized using Arthrospira biomass. Nanofiber diameters are given as the mean ± standard deviation.

PHB source and sample code	Concentration of PHB and Spirulina biomass (%, w/w)	Nanofiber type and diameter (mm)
Spirulina platensis
SP1	22% PHB	Uniform, 744 ± 99
SP2	22% PHB + 2.2% NaCl	Uniform, 474 ± 80
SP3	7% PHB + 5% biomass	Uniform, 312 ± 68
Commercial
B	20% PHB	No nanofibers produced
5V1	20% PHB-HV5	Uniform, 1205 ± 392
5V2	20% PHB-HV5 + 0.2% NaCl	Uniform, 1184 ± 225
5V3	15% PHB-HV5 + 5% biomass	Uniform, 1107 ± 279
12V1	20% PHB-HV12	Uniform, 1249 ± 169
12V2	20% PHB-HV12 + 0.2% NaCl	Uniform, 975 ± 177
12V3	15% PHB-HV12 + 5% biomass	Uniform, 835 ± 244
Cupriavidus necator
CN	20% PHB	No nanofibers produced
RE	40% PHB	No droplets