Sensitive detection of acetaminophen based on Fe3O4 nanoparticles-coated poly(diallyldimethylammonium chloride)-functionalized graphene nanocomposite film

An electrochemical sensor based on polyelectrolyte-functionalized graphene for detection of 4-nitrophenol

“…Meanwhile, it has more functional groups which are beneficial for adsorbing the analytes by electrostatic interaction [25]. The resultant PDDA-functionalized/adsorbed graphene was shown to possess dramatically enhanced activities towards electrochemical catalysis [26]. Therefore, the PDDA-G not only acquires a perfect dispersion but also serves as a sort of favorable material to modified electrodes.…”

Direct electrochemistry of hemoglobin on graphene/Fe3O4 nanocomposite-modified glass carbon electrode and its sensitive detection for hydrogen peroxide

“…Based on these properties, GE has shown great potential applications in electronic devices [2], energy conversion and storage [3], and biosensors [4]. However, GE is limited to designing biosensors for its hydrophobicity and agglomerate in water [5,6]. Therefore, the combination of GE with other functional materials may result in the composition integrating characterizations and functions of each component.…”

Sensitive Electrochemical Capsaicin Sensor Based on a Screen Printed Electrode Modified with Poly(sodium 4-styrenesulfonate) Functionalized Graphite

“…27 It exhibits high conductivity, a huge specific area and loosely held electrons in graphitic layers, benefit from its unique structure and low cost, Grp has been widely used as a substrate to construct electrochemical sensors and biosensors. [28][29][30] To prevent the Grp layers from aggregation and of improve the specific properties, a surfactant is always needed. PSS and poly(diallyldimethylammonium chloride) (PDDA) are two kinds of common electriferous polyelectrolytes, which have been widely applied in the functionalization of graphene and carbon nanotubes on the basis of the π-π conjugation.…”

“…PSS and poly(diallyldimethylammonium chloride) (PDDA) are two kinds of common electriferous polyelectrolytes, which have been widely applied in the functionalization of graphene and carbon nanotubes on the basis of the π-π conjugation. [28][29][30][31][32] The catenulate PSS and PDDA could effectively disperse the carbon materials and make their surfaces charged.…”