Selective electrochemical detection of cysteine in complex serum by graphene nanoribbon

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

“…By in-situ electrochemical synthesis approach, GO-graphene exhibited electrical and chemical synergies for developing biocompatible immunosensing platform, resulting in increasing in electrochemical signal response for diuron determination. Wu et al (2012) developed an electrochemical biosensor for selective cysteine detection in serum based on a functional graphene nanoribbon (GNR) and…”

Controlled chemistry of tailored graphene nanoribbons for electrochemistry: a rational approach to optimizing molecule detection

“…The electrochemical 5 sensing of model electroactive molecules in the presence of reduced GNR-modified screen-printed electrodes has been shown to display a higher sensitivity compared to the sensitivity of a bare screen-printed electrode 17 . Various GNR-based sensors and biosensors [23][24][25] have been developed for the detection of urea 26 , 10 glucose 27 , 1-hydroxypyrene 28 , cysteine 29 , brevetoxin B 30 , and 2,4,6-trinitrotoluene 31,32 . These sensors displayed excellent electrochemical responses in terms of reproducibility, a low detection limit, and a high selectivity in all cases.…”

A glassy carbon electrode modified with a multiwalled carbon nanotube@reduced graphene oxide nanoribbon core-shell structure for electrochemical sensing of p-dihydroxybenzene

“…[31,32]. After conversion to M W C N T @ G O N R , t h e F T-I R s p e c t r a o f t h e MWCNT@GONR shows several characteristic peaks of carboxy groups, epoxide and phenolic hydroxy functional groups at 1720, 820 and 1400 cm −1 , respectively [31,33,34]. From the FT-IR spectra of MWCNT@rGONR, it can be noted that the most of characteristic peaks for oxygen groups are disappeared, indicating that GONR was reduced successfully to rGONR by hydrazine and ammonia.…”