Single-Wall Carbon Nanohorns (SWNHs) were discovered by Iijima (1) and represent a new carbon material having a horn-shaped sheath of single-wall graphitic sheets. They associate each other to form a ‘Dahlia- flower’-like aggregate. In this study, SWNHs were characterized by using HR-TEM (High-Resolution Transmission Electron Microscopy), FE-SEM/EDX (Field Emission-Scanning Electron Microscopy), Raman spectroscopy, FT-IR (Fourier Transform-Infrared) spectroscopy, XPS (X-ray Photoelectron Spectroscopy), XRD (X-ray Diffraction) and TG/DTA (Differential Thermogravimetric analysis). Then, a stable and homogeneous SWNHs colloid phase, realized in ethanolic medium, was subsequently used to chemically modify SPEs surfaces (2). The modified electrochemical devices were applied for the detection of H2O2, β-NADH, several neurotransmitters, ascorbic, uric and caffeic acids, guanine and tyrosine, very important targets for interesting bio-medical applications (3).
Single-wall carbon nanohorns for the assembly of screen-printed electrodes (SPEs)
DITARANTO, NICOLETTA;SABBATINI, Luigia
2012-01-01
Abstract
Single-Wall Carbon Nanohorns (SWNHs) were discovered by Iijima (1) and represent a new carbon material having a horn-shaped sheath of single-wall graphitic sheets. They associate each other to form a ‘Dahlia- flower’-like aggregate. In this study, SWNHs were characterized by using HR-TEM (High-Resolution Transmission Electron Microscopy), FE-SEM/EDX (Field Emission-Scanning Electron Microscopy), Raman spectroscopy, FT-IR (Fourier Transform-Infrared) spectroscopy, XPS (X-ray Photoelectron Spectroscopy), XRD (X-ray Diffraction) and TG/DTA (Differential Thermogravimetric analysis). Then, a stable and homogeneous SWNHs colloid phase, realized in ethanolic medium, was subsequently used to chemically modify SPEs surfaces (2). The modified electrochemical devices were applied for the detection of H2O2, β-NADH, several neurotransmitters, ascorbic, uric and caffeic acids, guanine and tyrosine, very important targets for interesting bio-medical applications (3).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
