A nano-Ni based ultrasensitive nonenzymatic electrochemical sensor for glucose: Enhancing sensitivity through a nanowire array strategy

Preparation of Pulse Deposited Pt/Ni Nanowires Electrode for Glucose Detection in Alkaline Solution

“…The application of Pt-Ni alloy in fuel cell has been reported previously (Qu et al, 2007;Lu et al, 2009). However, according to our knowledge there is no report on combination of the two metals as Pt/Ni nanowires in sensor application.…”

“…By addition of glucose (curve 2 to 11), a great enhancement in anodic peak current appeared while the cathodic peak current gradually decreased. It was due to the fact that the Pt/Ni NWAs electrode catalyzed the oxidation of glucose in the exchanging reactions with NiO/Ni(OH)2 and NiO(OH) in alkaline media (Safavi et al, 2009;Lu et al, 2009). In this regard, the NiO or Ni(OH)2 species were produced due to the oxidation of Ni to Ni 2+ ions at more negative potentials (Lu et al, 2009;Mahshid et al, (2011a, b)).…”

“…It was due to the fact that the Pt/Ni NWAs electrode catalyzed the oxidation of glucose in the exchanging reactions with NiO/Ni(OH)2 and NiO(OH) in alkaline media (Safavi et al, 2009;Lu et al, 2009). In this regard, the NiO or Ni(OH)2 species were produced due to the oxidation of Ni to Ni 2+ ions at more negative potentials (Lu et al, 2009;Mahshid et al, (2011a, b)). On the other hand, the impact of Pt in alloyed structure with Ni resulted in more catalytic activity of the electrode since the Pt faced geometrical and electrical modifications in alloyed structure.…”

Carbon nanofiber modified with osmium based redox polymer for glucose sensing

“…Like all enzymes, glucose oxidase stability is affected by the environment conditions such as pH and temperature [8]. Incorporating conducting nanomaterials as a transducer material provides fast and accurate electron transfer at electrode surface.…”

Nano-Fe and MWCNTS Based Non-Enzymatic Sensor for Determination of Glucose in Seruum

“…However, the activity of enzyme can be easily affected by temperature, pH, humidity and toxic chemical. Nanostructured metal-oxides have been extensively explored to develop non-enzymatic glucose sensors with high sensitivity, fast response times, and stability for the determination of glucose by electrochemical oxidation, such as Cu nanoparticles (NPs) or Cue NPs (Dong et al, 2015;Jiang et al, 2010;Kang et al, 2015;Wang & Zhang, 2011;Zhang et al, 2013), Knox and metal oxide Yuan et al, 2013;Zhu, & Huang, 2012), Ni, NiO or Ni (OH) 2 NPs (Li et al, 2011;Liu et al, 2009;Lu et al, 2009;Nile et al, 2011;Safaris et al, 2009;Zhang et al, 2010), Mesoporous Pt (Park et al, 2003), Pup (Cui et al, 2007;Guo et al, 2011;Wang et al, 2008), Put (M= Ru, Pd and Au) NPs (Xiao et al, 2009) , Porous Au , N 2 -doped Ag (Lout et al, 2014), MnO 2 and Me compounds Yang et al, 2015), Co 3 O 4 /PbO 2 , Bimetallic Macon (M = Cu, Fe, Ni, and Mann) NPs and so on. In this work, Nano-Fe and MWCNTs were fabricated a non-enzymatic glucose sensor with excellent performances.…”