A novel electrochemical biosensor based on hemin functionalized graphene oxide sheets for simultaneous determination of ascorbic acid, dopamine and uric acid

A novel sensor based on electrodeposited Au–Pt bimetallic nano-clusters decorated on graphene oxide (GO)–electrochemically reduced GO for sensitive detection of dopamine and uric acid

“…A c c e p t e d M a n u s c r i p t 8 show better dispersion, in good agreement with the literature [51][52][53]. It has been confirmed that GO or ERGO, which could be physico-chemically and structurally regarded as unconventional polymeric surfactant structures, may act as capping agent or stabilizer to disperse and hamper the growth of the NPs [21].…”

“…The electrochemical detection of DA and UA has been investigated on graphene or GO-based in some papers [47][48][49][50][51][52][53], but the necessity of continuing further studies with an intention to attain lower detection limits exists now [54][55][56][57][58][59][60]. And one-step electrodeposition of Pt-Au bimetallic nano-clusters loaded onto GO for simultaneous DA and UA has not been reported.…”

A Simple DNA-based Electrochemical Biosensor for Highly Sensitive Detection of Ciprofloxacin Using Disposable Graphene

“…Here, uric acid produced oxidation peaks at 0.4 V when scanned from 0.1 to 1.4 V. Zou et al also reported the electro-oxidation of ascorbic acid, dopamine and uric acid at various potentials of 0, 0.2 and 0.4 V, respectively. 36 …”

Synthesis of graphene and related two-dimensional materials for bioelectronics devices

“…Besides CDs, there are also many other organics that can be composited with rGO for the detection of other biomolecules. For example, hemin, with an active center of heme-proteins, could also be applied to functionalize graphene for monitoring ascorbic acid, dopamine and uric acid (Zou et al 2015).…”

“…With constant efforts made by researchers, the performance of these graphene-based biosensors toward certain small molecules has been improved rapidly. (Zeng et al 2013) Fe 3 O 4 /Au-S-Fc/GS/chitosan/GCE DPV 0.1 0.5~50 Screen-printed G DPV 0.12 0.5~2000 (Ping et al 2012) Hemin/GO/GCE DPV 0.17 0.5~40 (Zou et al 2015) G/MIPs LWV 0.1 0.1~830 (Mao et al 2011) G/Au Ag SWV 0.205 0.3~300 (Pruneanu et al 2015) AA Pristine G/GCE CV 6.45 9.00~2314 (Qi et al 2015) G G/Chitosan/GCE CV 0.1 1.0~125 (Weng et al 2013) Screen-printed G DPV 0.2 0.8~2500 (Ping et al 2012) Hemin/GO/GCE DPV 0.17 0.5~50 (Zou et al 2015) Fe 3 O 4 /PDDA/rGO/GCE DPV 0.08 0.5~20 MWNTs bridged mesocellular G/GCE DPV 0.93 5~100, 300~1000 G/platelet/ILs/chitosan/GCE DPV 0.1 0.12~260 (Niu et al 2012a) ErGO/GCE DPV 0.5 0.5~60 Au NPs/rGO/GCE DPV 1.8 8.8~53 NG/GCE DPV 0.045 0.1~20 (Sheng et al 2012b) PTCA/G/MWCNTs/ILs/GCE DPV 0.0012 0.03~3820 (Niu et al 2013) …”