Consulta: creatorFacets:"Bo-Zhang Yu"
Registros recuperados: 2
Data/hora: 10/06/2024 14:54:41

Optical and Electrical Properties of Multi-Walled Carbon Nanotubes Functionalized with Oxadiazole Chromophores
Provedor de dados: 17
Autores: Bo-Zhang Yu; Ji-Fei Ma; Hu-Lin Li; Ya-Fei Zhang; Wen-Xin La.
Multi-walled carbon nanotubes (MWCNTs) functionalized with oxadiazole chromophores, 2-(4-aminophenyl)-5-naphthyl-1,3,4-oxadiazole (APND) was prepared by an amide linkage. The resultant MWCNTs-APND and APND were characterized by using FT IR, ^1^H NMR, and XRD analysis to give their structural and crystal information, supporting the successful modification. UV-Vis absorption spectrum of MWCNTs-APND was broadened and significantly red-shifted, and its emission peak was narrower than that of APND, which provided direct evidence for reaction of APND with surface of MWCNTs via [pi]-stacking. The electrical properties demonstrated that there was a perfect ohmic behaviour for membrane of APND, and the thin films of MWCNTs-APND had the same nonlinear properties as...
Tipo: Manuscript
Palavras-chave: Chemistry.
Ano: 2009
URL: http://precedings.nature.com/documents/2749/version/1

A new potential  radiosensitizer: ammonium persulfate modified WCNTs
Provedor de dados: 17
Autores: Jian-She Yang; Bo-Zhang Yu; Wen-Xin Li.
Radiotherapy plays a very important role in cancer treatment. Radiosensitizers have been widely used to enhance the radiosensitivity of cancer cells at given radiations. Here we fabricate multi-walled carbon nanotubes with ammonium persulfate, and get very short samples with 30-50 nanometer length. Cell viability assay show that f-WCNTs induce cell death significantly. We hypothesize that free radicals originated from hydroxyl and carbonyl groups on the surface of f-WCNTs lead cell damage.
Tipo: Manuscript
Palavras-chave: Biotechnology; Cancer; Chemistry.
Ano: 2007
URL: http://precedings.nature.com/documents/1421/version/1