Electrospinning graphene quantum dots into a nanofibrous membrane for dual-purpose fluorescent and electrochemical biosensors

Abstract

An electrospinning technique was utilized to add graphene quantum dots into a nanofibrous polymer membrane for dual-purpose fluorescent and electrochemical biosensors.

Recent advances in electrochemical biosensors based on graphene two-dimensional nanomaterials

“…Recently, graphene hybrid with various nanomaterials, such as metal chalcogenides , Ramakrishna Matte et al, 2010, metal oxides (Dong et al, 2012a), and polymer (Salavagione et al, 2011), were prepared and investigated as the third generation of glucose biosensors. Electrons cross the long tunneling distance through enzymes, thereby achieving direct GOx electrochemistry on graphene-modified electrodes (Zhang et al, 2015a, Zhang et al, 2014d, Bai et al, 2013b, Gu et al, 2012, Zhou et al, 2010. The favorable electron transfer kinetics and high sensitivity are originated from the good conductivity and large surface area of graphene favoring for immobilization of GOx.…”

Synthesis of CaTiO3 Nanofibers with Controllable Drug‐Release Kinetics

“…Electrospun nanofibers offer several advantages such as an extremely high surface-to-volume ratio, tunable porosity, and malleability to conform to a wide variety of sizes and shapes. [11] With smaller pores and higher surface area than regular fibers, electrospun fibers have been successfully applied in diverse fields including tissue engineering, [12] biosensors, [13] filtration, [14] wound dressings, [15] drug delivery, [1a,1b,16] and enzyme immobilization. [17] The nanoscale fibers are generated by the application of a strong electric field to the polymer solution.…”

Bio-Sensing Applications of Graphene Based Composite Films

“…Authors in [25] developed Graphene quantum dots (GQDs) based biosensor to detect hydrogen peroxide (H 2 O 2 ) and glucose in diabetes patients. This same sensor can be used as electro-chemical and fluorescent bio-sensor.…”