Ultrasensitive dopamine detection with graphene aptasensor multitransistor arrays

Table 2 Comparison of different biosensors for dopamine detection

Biosensor configuration	Detection method	LOD	Dynamic Range	Refs.
gFET + aptamer	Transconductance	1 aM	1 aM–100 µM	This work
Glassy carbon electrode (GCE)/rGO-polyurethane	DPV	10 pM	0. 1–1.15 nM	[53]
conducting Polymer + rGO + aptamer	Voltammetry	78 fM	1 pM–160 nM	[54]
Palladium NPs-loaded Carbon nanofibers	DPV	0.2 µM	0.5–160 µM	[55]
Conducting polymer nanotubes liquid gated-FET + aptamer	Transconductance	100 pM	–	[56]
In₂O₃ FET + aptamer	Transconductance	1 fM	1 fM–10 pM	[47]
Gold electrode + aptamer	Amperometry	62 nM	0.1–1 μM	[57]
Fluorescence aptasensor	Voltammetry/fluorometric	80 pM	100 pM–10 nM	[58]
MoS₂ QDs MoS₂ Nanosheets + aptamer	FRET	45 pM	0.1–1000 nM	[59]
Organic electrochemical transistor (OECT) + split aptamer	Amperometry	0.5 fM	5 fM–10 pM	[12]
FRET quenching biosensor + aptamer	FRET	0.12 μM	0–15 μM	[46]
Carbon-dot–tyrosinase bioprobe	Fluorescence	60 nM	0.1–6.0 μM	[60]
Microfluidic plasma separator	Plasmonics	100 fM	–	[61]
Tryptophan-modified electrodes	FSCV	2.48 nM	–	[62]
Au-coated arrays of micro pyramid structures (Au-MPy)	CV	0.50 nM	0.01–500 µM	[63]
Boron-doped diamond electrode (CB-Nafion/p-BDD)	CV	54 nM	0.1–100 μM	[64]
Single-Atom Ruthenium Biomimetic Enzyme (Ru-Ala-C3N4)	Catalytic/amperometry	20 nM	0.06–490 μM	[65]
Chitosan/graphene quantum dots thin film	SPR	1.0 fM	0.1 fM–1 pM	[66]
Fe₃O₄-AuNPs coated FET	Transconductance	3.3 nM	1–120 µM	[67]

CV Cyclic Voltammetry, DPV Differential Pulse Voltammetry, FET Field-effect transistor, FRET Fluorescence resonance energy transfer, FSCV Fast Scanning Cyclic Voltammetry, LSPR Localized Surface Plasmon Resonance, NPs Nanoparticles; QDs Quantum dots; rGO reduced graphene oxide; SPR Surface Plasmon Resonance

ISSN: 1477-3155