Generic epitaxial graphene biosensors for ultrasensitive detection of cancer risk biomarker

  title={Generic epitaxial graphene biosensors for ultrasensitive detection of cancer risk biomarker},
  author={Zari Tehrani and Gregory Burwell and Mohd Azraie Mohd Azmi and Ambroise Castaing and R. H. Rickman and Jamal Qernas M. Almarashi and Peter R. Dunstan and Ali Akbar Miran Beigi and Shareen H. Doak and Owen James Guy},
  journal={2D Materials},
A generic electrochemical method of ‘bioreceptor’ antibody attachment to phenyl amine functionalized graphitic surfaces is demonstrated. Micro-channels of chemically modified multi-layer epitaxial graphene (MLEG) have been used to provide a repeatable and reliable response to nano-molar (nM) concentrations of the cancer risk (oxidative stress) biomarker 8-hydroxydeoxyguanosine (8-OHdG). X-ray photoelectron spectroscopy, Raman spectroscopy are used to characterize the functionalized MLEG… 

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