2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/161440Boron-doped multi-walled carbon nanotubes (MWNTs) were synthesized using a methanol solution of boric acid as a source material. Accurate measurements of the electrical resistivity of an individual boron-doped MWNT was performed with a four-point contact, which was fabricated using an electron beam lithography technique. The doped boron provides conduction carriers, which reduces the resistivity of the MWNT.3 pages and 4 figures. This article is to be published in Applied Physics LettersMaterials Sciencetext