A facile sensitivel-tyrosine electrochemical sensor based on a coupled CuO/Cu₂O nanoparticles and multi-walled carbon nanotubes nanocomposite film

A voltammetric sensor based on reduced graphene oxide-hemin-Ag nanocomposites for sensitive determination of tyrosine

“…The limit of detection was calculated to be 30 nM based on the signal-to-noise ratio of 3 using the calibration equation obtained for low concentration range. Note that our proposed rGO-H-Ag/GCE provided a broader linear range than that of SWCNH/GCE (2-30), 29 CuO/Cu 2 O/MWCNTs/GCE (0.2-200), 31 PTH/AGCE (1-250), 33 Naon/TiO 2 -GR/GCE (10-160), 34 GR/GCE (0.8-60), 35 GQD-RuCl 3 /CCE (1-937) 36 and PAMAM/MWCNT/ GCE (0.1-28.8) 37 listed in Table 1. The enhanced performance of the rGO-H-Ag nanocomposites can be ascribed to the large specic surface area, high electrocatalytic activity, good electrical conductivity, fast electron transfer and the synergistic interaction of three components.…”

“…It is ascribed to the huge specic surface area and superior electrical conductivity of rGO-H-Ag nanocomposites, which can increase the effective area of the electrode and improve the electron transfer rate. [29][30][31][32]…”

MOFs-Derived Nano-CuO Modified Electrode as a Sensor for Determination of Hydrazine Hydrate in Aqueous Medium

“…Although the above method enhances the electrochemical reaction of hydrazine, most are noble metal nanoparticles, which limits the application in reality. Cupric oxide, a non-precious metal oxide, has been widely used in sensors due to its low cost and good catalytic ability [18][19][20], and it has also been reported as useful for detecting hydrazine hydrate [21][22][23][24][25]. Further study on the sensor is still required in order to accelerate development of an effective method for detecting hydrazine hydrate.…”

A New Approach of Controlled Single Step In Situ Fabrication of Graphene Composite Sensor for Simultaneous Sensing of Small Biomolecules in Human Urine

“…Tyrosinemia is initiated due to the higher concentration of L‐tyrosine, and its lower concentration results in alkaptonuria and albinism. L‐tyrosine in urine is considered a biomarker for certain cancers, and it′s 50% high concentration compared to normal in urine is indicated the high possibility of the tumor . Electrochemical sensors among different analytical tool is a good choice to fabricate sensitive and selective sensors…”