ABS	Transmitted intensity
AAD	absolute average deviation [%]
DW	Deionized Water
η	flatness ratio effect of graphene
FFT	Fast Fourier TransformGum
GA	Gum Arabic
HFLG	highly crumpled few layer graphene
HRTEM	high-resolution transmission electron microscopy
FLG	few layer graphene
IFFT	Inverse FFT
L	Average length of graphene
PG	Propylene glycol
P123	Pluronic® P123
ρ	Density
$R_K$	Interfacial thermal resistance
SEM	scanning electron microscopy
St. Dev.	standard deviation
TEM	transmission electron microscopy
T	temperature [K]
t	graphene thickness
t0	particles dispersion
TrX	Triton X-100
${\phi }_m$	mass fraction
$\phi$	apparent mass fraction
$\phi$	volume fraction
Subscripts/superscripts
eff	effective
nf	nanofluid
np	nanoparticles
bf	base fluid