Nanowire manipulation on surfaces through electrostatic self-assembly and magnetic interactions
A method for fabricating aligned nanowire arrays on surfaces is shown. Gold and segmented Au/Ni/Au nanowires of high aspect ratio have been prepared by template electrosynthesis, and functionalized with charged short alkanethiols that can be ionized in aqueous solutions. Different distributions of f...
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_18626254_v3_n1_p1_Bellino |
| Aporte de: |
| id |
todo:paper_18626254_v3_n1_p1_Bellino |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_18626254_v3_n1_p1_Bellino2023-10-03T16:33:24Z Nanowire manipulation on surfaces through electrostatic self-assembly and magnetic interactions Bellino, M.G. Calvo, E.J. Gordillo, G.J. Alkanethiols Applied magnetic fields Aqueous solutions Aqueous suspensions Bifunctionalization Different distributions Electrical repulsion Electrostatic self assembly Functionalized High aspect ratio High magnetic anisotropy Linear alignments Low magnetic fields Magnetic interactions Nanowire arrays Aspect ratio Dissociation Electrostatics Magnetic anisotropy Magnetic fields Nanowires Photoresists Pressure drop Suspensions (fluids) Electric wire A method for fabricating aligned nanowire arrays on surfaces is shown. Gold and segmented Au/Ni/Au nanowires of high aspect ratio have been prepared by template electrosynthesis, and functionalized with charged short alkanethiols that can be ionized in aqueous solutions. Different distributions of funtionalized nanowires could be obtained on large surfaces from nanowire aqueous suspensions, avoiding aggregation due to electrical repulsion. Due to the high magnetic anisotropy of segmented Au/Ni/Au nanowires chaining of aligned nanowires could be obtained by applying a low magnetic field. While electrostatics favours side wire interactions due to the high aspect ratio, concurrent electrostatics and applied magnetic field yields end-to-end interaction and linear alignment without bifunctionalization. © 2009 WILEY-VCH Verlag GmbH&Co. KGaA, Weinheim. Fil:Bellino, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Calvo, E.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_18626254_v3_n1_p1_Bellino |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Alkanethiols Applied magnetic fields Aqueous solutions Aqueous suspensions Bifunctionalization Different distributions Electrical repulsion Electrostatic self assembly Functionalized High aspect ratio High magnetic anisotropy Linear alignments Low magnetic fields Magnetic interactions Nanowire arrays Aspect ratio Dissociation Electrostatics Magnetic anisotropy Magnetic fields Nanowires Photoresists Pressure drop Suspensions (fluids) Electric wire |
| spellingShingle |
Alkanethiols Applied magnetic fields Aqueous solutions Aqueous suspensions Bifunctionalization Different distributions Electrical repulsion Electrostatic self assembly Functionalized High aspect ratio High magnetic anisotropy Linear alignments Low magnetic fields Magnetic interactions Nanowire arrays Aspect ratio Dissociation Electrostatics Magnetic anisotropy Magnetic fields Nanowires Photoresists Pressure drop Suspensions (fluids) Electric wire Bellino, M.G. Calvo, E.J. Gordillo, G.J. Nanowire manipulation on surfaces through electrostatic self-assembly and magnetic interactions |
| topic_facet |
Alkanethiols Applied magnetic fields Aqueous solutions Aqueous suspensions Bifunctionalization Different distributions Electrical repulsion Electrostatic self assembly Functionalized High aspect ratio High magnetic anisotropy Linear alignments Low magnetic fields Magnetic interactions Nanowire arrays Aspect ratio Dissociation Electrostatics Magnetic anisotropy Magnetic fields Nanowires Photoresists Pressure drop Suspensions (fluids) Electric wire |
| description |
A method for fabricating aligned nanowire arrays on surfaces is shown. Gold and segmented Au/Ni/Au nanowires of high aspect ratio have been prepared by template electrosynthesis, and functionalized with charged short alkanethiols that can be ionized in aqueous solutions. Different distributions of funtionalized nanowires could be obtained on large surfaces from nanowire aqueous suspensions, avoiding aggregation due to electrical repulsion. Due to the high magnetic anisotropy of segmented Au/Ni/Au nanowires chaining of aligned nanowires could be obtained by applying a low magnetic field. While electrostatics favours side wire interactions due to the high aspect ratio, concurrent electrostatics and applied magnetic field yields end-to-end interaction and linear alignment without bifunctionalization. © 2009 WILEY-VCH Verlag GmbH&Co. KGaA, Weinheim. |
| format |
JOUR |
| author |
Bellino, M.G. Calvo, E.J. Gordillo, G.J. |
| author_facet |
Bellino, M.G. Calvo, E.J. Gordillo, G.J. |
| author_sort |
Bellino, M.G. |
| title |
Nanowire manipulation on surfaces through electrostatic self-assembly and magnetic interactions |
| title_short |
Nanowire manipulation on surfaces through electrostatic self-assembly and magnetic interactions |
| title_full |
Nanowire manipulation on surfaces through electrostatic self-assembly and magnetic interactions |
| title_fullStr |
Nanowire manipulation on surfaces through electrostatic self-assembly and magnetic interactions |
| title_full_unstemmed |
Nanowire manipulation on surfaces through electrostatic self-assembly and magnetic interactions |
| title_sort |
nanowire manipulation on surfaces through electrostatic self-assembly and magnetic interactions |
| url |
http://hdl.handle.net/20.500.12110/paper_18626254_v3_n1_p1_Bellino |
| work_keys_str_mv |
AT bellinomg nanowiremanipulationonsurfacesthroughelectrostaticselfassemblyandmagneticinteractions AT calvoej nanowiremanipulationonsurfacesthroughelectrostaticselfassemblyandmagneticinteractions AT gordillogj nanowiremanipulationonsurfacesthroughelectrostaticselfassemblyandmagneticinteractions |
| _version_ |
1807318347184865280 |