▎ 摘　　要

NOVELTY - Graphene nanoelectrode has a far lower skin-electrode contact impedance when compared to a standard silver/silver chloride electrode. The impedance of a standard silver/silver chloride electrode varies of 487 k (at 10 Hz) to 17.3 k (at 1 kHz), and that of a graphene nano-electron ranges of 356 k (at 10 Hz) to 10.9 k (at 1 kHz). The graphene nano electrode has a higher signal to noise ratio than the standard silver or silver chloride electrode. A graphene nano electron has a signal-to-noise ratio (SNR) of 37.31 dB compared to an silver or silver chloride electrode's SNR of 31.05 dB. USE - The nanoelectrode is useful in electrocardiogram (ECG) analysis of a patient and for other types of electrochemical analysis. ADVANTAGE - The graphene nanoparticles have a high and sharp absorption edge in the UV spectrum at 199.9 nm. Due to the quantum confinement effect, a strong wide exaction absorption band is found, supporting the creation of mono dispersible layered particles. The grain growth was improved. The variance in grain size is well correlated with the average crystalline size of all the nanoparticles. The sharp points 2920 and 521.01 of the C=C and C-l groups' stretching vibrations are present in graphene nanoparticle. The range of the observed grain size variation is 40-60 nm. The surface area of tiny particles is large (high surface to volume ratio). Consequently, there are more atoms accessible on the particle's surface than within. As a result of their free valence or dandling bonds, these surface atoms are more open to absorbing other species or interacting with their nearby surface atoms.