Table 5.

A summary of electrochemical sensors targeting Glutamate.

Analyte	Electrode/Modification	Receptor	Matrix/Solvent	LOD (ng/mL)	Linear Range (ng/mL)	Ref.
l-glutamic acid	Mesoporous Co3O4 nanosheets on glassy carbon electrodes	–	Serum and urine	1.47	0.0147 – 1.47 × 107	[152]
l-glutamate	Nickel-oxide nanoparticles on glassy carbon electrodes	–	Pharmaceutical preparation	4.03 × 104	1.48 × 105–1.18 × 106	[153]
l-glutamate	Ni-nanowire array electrode	–	Pharmaceutical preparation	8.89 × 103	7.41 × 104–1.19 × 106	[150]
l-glutamate	ZnO nanorods/polypyrrole modified pencil graphite electrode	l-glutamate oxidase	Chinese soup	0.0267	2.96 – 7.41 × 104	[154]
Glutamate	Ceramic-substrate enabled platinum microelectrode array	Glutamate oxidase	Pharmaceutical preparation	23.7	1.48 × 103–8.44 × 103	[155]
l-glutamate	Polyphenylenediamine, chitosan, ascorbate oxidase	Glutamate oxidase	In vivo and in vitro brain slices	6.52	7.41 × 102–2.22 × 104	[151]