High-performance glucose amperometric biosensor based on magnetic polymeric bionanocomposites

Magnetic Fe3O4-Reduced Graphene Oxide Nanocomposites-Based Electrochemical Biosensing

“…Magnetic nanomaterials have received much attention because of the unusual structural, excellent adsorption, catalytic properties and inherent electrical conductivity [10][11][12][13][14]. Graphene, a two-dimensional (2D) sheet of carbon atoms arranged in a honeycombed network, has perceived tremendous attention because of its high electrical conductivity, large surface area per volume, excellent electrocatalytic properties, all of which lead to their excellent performance as electrochemical biosensing platforms [15].…”

Conductive polymer-based sensors for biomedical applications

“…Both intrinsically conducting polymers and conducting polymer-nanocomposite materials have been used as bio-transducers. Carbon nanotubes (Liu et al, 2006;Perǐez et al, 2005;Pumera et al, 2006;Wang and Musameh, 2003) and metal nanoparticles (Park et al, 2004;Yu et al, 2003;Zeng et al, 2009;Zou et al, 2010) are some of the most commonly used filler materials for polymer composite-based functionalization of electrodes in electrochemical sensors. Some of the most commonly used ICPs for development of different types of electrochemical biosensors are: PANI, PPy and PT.…”

“…Some of the major concerns include sensor instability, poor loading capability and complicated manipulations (Zhang et al, 2007). In the past decade, magnetism-based immobilization of biomolecules (enzymes (Elyacoubi et al, 2006;Liu et al, 2005;Qu et al, 2007;Rossi et al, 2004;Yu et al, 2006;Zhang et al, 2007;Zou et al, 2010) and antibodies (Tang et al, 2006)) and cancer cells (leukaemia K562) (Jia et al, 2009) have been reported. A typical magnetism-based biosensor can be broadly divided into 3 units: (i) A biorecognition layer comprising of sensing elements (biomolecules or cells) attached to magnetic nanoparticles, and conducting filler materials (gold or silver nanoparticles, carbon powder, etc.)…”

Rapid Legionella pneumophila determination based on a disposable core–shell Fe 3 O 4 @poly(dopamine) magnetic nanoparticles immunoplatform

“…MNPs were prepared by the chemical co-precipitation method by using deoxygenated solutions under N 2 atmosphere using a slightly different protocol to that reported before [13,14,20]. [13,14]).…”