AuNPs	gold nanoparticles
ACV	alternating current voltammetry
AuE	gold electrode
ASPE	poly-anthranilic acid
AuHCF	layers of gold hexacyanoferrate
AgNp	silver nanoparticle
Ab	antibody-BNP
Ab2	anti-CTnI polyclonal antibody
Au/Fc@CuxO SPs	Rocene-functionalized cuprous oxide superparticles
Apt	aptamer
ASV	anodic stripping voltammetry
AuNPs-AgCl@PANI-mGCE	AuNPs-AgCl@PANI-modified glassy carbon electrode
AuNR/AuNW/CS	gold nanorod (AuNR) and gold nanowire (AuNW) nanocomposites
Au/4-ATP/AbM/BSA	Au-Gold, 4-ATP—4—aminothiophenol, AbM—monoclonal antibody, BSA—bovine serum albumin
BNQDs	boron nitride quantum dots
BSA	bovine serum albumin
ChOx	cholesterol oxidase
CSPPy-g-C3N4H+	cylindrical spongy shaped polypyrrole
COOH-ZnONPs	carboxylated ZnO nanoparticles (COOH-ZnONPs)
CSA	cTnI specific aptamer
CNT-CH/ITO- CGE	carbon nanotubes-chitosan (CNT-CH)/indium tin oxide (ITO) coated glass electrode
DPV	differential Pulse Voltammetry
DES	deep eutectic solvent
EIS	electrochemical Impedance Spectroscopy
Fc-COFNs	Ferrocene-based covalent organic framework nanosheets
Fc-ECG	a ferrocene derivative
Fe3O4@SiO2	silica coated magnetite nanoparticles
GP	graphite paper
GDF15	growth differentiation factor
GE	graphite electrodes
GCE/poly(oATP)/AuNPs	glassy carbon electrode (GCE) coated with gold nanoparticles (Au-NPs) and poly-o-aminobenzenethiol (poly(oATP)) films
GPTES	3-glycidoxypropyltriethoxysilane
HCNs-GR	graphene supported by hollow carbon balls
HsGDY@NDs	nanodiamonds (NDs) and hydrogen-substituted graphdiyne (HsGDY)
IL-CS	ionic Liquid (1-buthyl-3-methylimidazolium bis (trifluoromethyl sulfonyl)imide)
ITO	indium tin oxide
IX N-CNTs	N-doped carbon nanotubes
LASV	linear sweep anodic stripping voltammetry
LSGE	laser-induced graphene electrodes
LSV	linear Sweep Voltammetry
MWCNTs	multi-walled Carbon Nanotubes
MIPs	molecularly-imprinted polymers
MIP/GWE	molecularly-imprinted polymers onto gold working electrode
MB	methylene blue
MCH	6-mercapto-1-hexanol
MoS2/rGO	modified molybdenum disulfide and reduced graphene oxide
MOF	metal-organic framework
MES	microelectrode system
MGCE	magnetic glassy carbon electrode
MSN	mesoporous silica nanoparticles
MPA	3-mercaptoproponic acid
MIP	molecularly imprinted polymer
MOF-Fc	Ferrocene immobilized metal organic framework
NR	not reported
NFs	nanofibers
N-GNRs-Fe-MOFs@AuNPs	N-doped graphene nanoribbons immobilized fe-based-Metal-organic frameworks deposited with Au nanoparticles
NH2-SWCNT	aminoated single-walled carbon nanotubes
N–ZnO NP	N-doped ZnO nanopolyhedra
NSE	neuron-specific enolase
N-MIP	nano-molecularly imprinted polymer
N-prGO	nitrogen-doped reduced graphene oxide
NH2-Rgo/ITO–CGE	aminated Reduced Graphene Oxide (NH2-rGO)/ indium tin oxide (ITO)-coated glass electrode
Ox-LDL	oxidized low-density lipoprotein
PAMAM	polyamidoamine
PET	polyethylene terephthalate
PMPC-SH/SAM	thiol-terminated poly (2-methacryloyloxyethyl phosphorylcholine)/self-assembled monolayer
PEI-Fe	Fe (III) phthalocyanine
PPIX	protoporphyrin
PCN	graphitic carbon nitride
pCTAB	cetyltrimethylammonium bromide
PEG	polyethylene glycol
PANI	polyaniline
PMB	polymethylene blue
PTyr	polytyraminesolution
PDMS	polydimethylsiloxane
RTNs	rough-surfaced trimetallic
SPCE	screen-Printed Carbon Electrodes
SPE	graphite screen-printed electrode
SLG	single layer graphene
SWV	square-wave voltammetry
SWASV	square-wave anodic stripping voltammetry
TiO2NPs	titanium dioxide nano particles
3-GOPS/anti-adiponectin-ITO-PET	anti-Adiponectin immobilized onto ITO surface with 3-GOPS (3-Glycidoxypropyltrimethoxysilane)