Nitrogen-doped carbon nanotube/polyaniline composite: Synthesis, characterization, and its application to the detection of dopamine

One-dimensional nitrogen-containing carbon nanostructures

“…dopamine NCNTs/PANI composite aniline polymerization over NCNTs two wide linear ranges: 1 -80 μM and 1.5 -3.5 mM LOD = 0.01 μM low interference with ascorbic acid [707] dopamine in the presence of ascorbic acid NCNRs direct carbonization method using PANI-NR as the carbon precursor Linear range 0.008 -15.0 μM, LOD = 8.9 × 10 −9 M (S/N = 3) [708] paracetamol MWNCNTs CVD with decomposition of acetonitrile onto oxidized silicon wafer using ferrocene as catalyst LOD = 0.485 μM; sensitivity = 0.8406 A M -1 cm -2 [99] [505] cytosensor for evaluation of cell surface carbohydrate and glycoprotein advanced structure suing NCNTs as support 3-D architecture was initially fabricated by combining nitrogendoped carbon nanotubes, thionine, and gold NPs via a simple layerby-layer method HeLa cells concentration ranging from 8.0 × 10 2 to 2.0 × 10 7 cells mL -1 LOD = 500 cells mL -1. NCNTs decomposition of CH 4 in N 2 /NH 3 atmosphere using hot filament CVD fiel emission onset 4 V/μm, current density of 10 mA/cm 2 at 7.2 V/μm (for NCTs thin than 50 nm) [231] aligned carbon nitride nanotube films MPCVD on iron-catalystembedded mesoporous silica turn-on field down to 0.8 V/μm.…”

“…In contrast to ORR, it appears that a consensus exists in this case, identifying pyridinic N surface functionalities as responsible for the high rate of this electrocatalytic reaction. Besides aforementioned glucose, sensing of large number of small organic molecules using 1-D NCNSs was reported in the literature: catecholamines and catechols (NCNT electrodes) [703], dihydroxybenzene isomers (simultaneous detection using NCNTs) [135], l-lactate (biosensor based on lactate oxidase immobilized on NCNTs) [518], dopamine (NCNTs/PANI composites [707]; NCNR [708]; detection in the presence of ascorbic acid and uric acid using NDNW film electrodes [543]) and paracetamol [99]. Complete overview of electroanalytical applications of metal-free NCNSs is provided in Table 12.…”

Computational Study on the Interaction of Modified Nucleobases with Graphene and Doped Graphenes

“…Previous reports reveal that silicon-doped graphene is useful in the sensing of gases and that it acts as a metal free catalyst in the reduction of N 2 O. , Silicon-doped graphene can be used as a sensor for both NO and NO 2 . In addition to the doped graphene, several theoretical studies have revealed that the doped carbon nanotube can be used for the detection of biomolecules and organic pollutants. , The introduction of boron dopant in carbon nanotube increases the adsorption strength of amino acid on its surface . Although the local topological structure of both graphene and carbon nanotubes doped with boron, nitrogen, and silicon is similar, the electronic structures differ. − Silicon doping causes localized structural changes in both silicon-doped carbon nanotube and silicon-doped graphene.…”

Nitrogen‐Doped Carbon Nanotubes Synthesised by Pyrolysis of (4‐{[(pyridine‐4‐yl)methylidene]amino}phenyl)ferrocene

“…Doping CNTs with nitrogen creates superficial defects that alters the chemical properties of CNTs and creates a path to reactivity and applications [2]. Some of the potential applications of N-CNTs include lithium storage [3,4], biosensors [5,6], fuel cells [7,8], drug delivery [9], catalytic support [10], field emission [4,11], and electronic devices [12], among others.…”