<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Lignin derived nanoparticle intercalation on nitrogen-doped graphene quantum dots for electrochemical sensing of cardiac biomarker"^^ . "Lignin-scribed graphene (LSG) conjugated with nitrogen-doped graphene quantum dots (N-GQDs) and lignin-derived silver nanoparticles (Ag NPs) was developed through a hydrothermal process for the electrochemical sensing of Troponin I, a cardiac biomarker for Acute Myocardial Infarction (AMI). A nanocomposite with optimal conduction mechanism was developed by varying the N-GQDs doped amount intercalated on the surface of LSG. The nanocomposite was characterised by morphological, physical, and structural examinations. The Ag NPs and N-GQDs were found uniformly distributed on the LSG surface, with selective capture of the biotinylated aptamer probe on the bio-electrode indicative of the specific interaction with Troponin I, resulting in an increment in the charge transfer resistance following hybridisation analysis. The detection limit, as determined through impedance spectroscopy, was 1 fM or 30 fg/mL, with high levels of linearity, selectivity, repeatability, and stability of the sensor. This nanocomposite opens a new avenue for array-based medical diagnostics. © 2023"^^ . "2023" . . "195" . . "Microchemical Journal"^^ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "S.C.B."^^ . "Gopinath"^^ . "S.C.B. Gopinath"^^ . . "N."^^ . "Arumugam"^^ . "N. Arumugam"^^ . . "H.-L."^^ . "Lee"^^ . "H.-L. Lee"^^ . . "P.B."^^ . "Raja"^^ . "P.B. Raja"^^ . . "V."^^ . "Perumal"^^ . "V. Perumal"^^ . . "M.N.M."^^ . "Ibrahim"^^ . "M.N.M. Ibrahim"^^ . . "R.S."^^ . "Kumar"^^ . "R.S. Kumar"^^ . . "M."^^ . "Ovinis"^^ . "M. Ovinis"^^ . . "S."^^ . "Remesh"^^ . "S. Remesh"^^ . . "S."^^ . "Karuppanan"^^ . "S. Karuppanan"^^ . . "M."^^ . "Vasudevan"^^ . "M. Vasudevan"^^ . . . . . "HTML Summary of #18018 \n\nLignin derived nanoparticle intercalation on nitrogen-doped graphene quantum dots for electrochemical sensing of cardiac biomarker\n\n" . "text/html" . .