“Bio-functionalization of anisotropic nanocrystalline semiconductor-magnetic heterostructures” (Articolo in rivista)

Type
Label
  • “Bio-functionalization of anisotropic nanocrystalline semiconductor-magnetic heterostructures” (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Alternative label
  • Depalo N., Carrieri P., Comparelli R., Striccoli M., Agostiano A., Bertinetti L., Innocenti C., Sangregorio C., Curri M.L. (2011)
    “Bio-functionalization of anisotropic nanocrystalline semiconductor-magnetic heterostructures”
    in Langmuir
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Depalo N., Carrieri P., Comparelli R., Striccoli M., Agostiano A., Bertinetti L., Innocenti C., Sangregorio C., Curri M.L. (literal)
Pagina inizio
  • 6962 (literal)
Pagina fine
  • 6970 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 27 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • 10.1021/la200822b (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [Depalo, Nicoletta; Comparelli, Roberto; Striccoli, Marinella; Agostiano, Angela; Curri, M. Lucia] IPCF CNR, Bari Div, I-70126 Bari, Italy. [Depalo, Nicoletta; Carrieri, Pasquale; Agostiano, Angela] Univ Bari, Dipartimento Chim, I-70126 Bari, Italy . [Bertinetti, Luca] Univ Turin, Dipartimento Chim, IFM, I-10125 Turin, Italy; Univ Turin, NIS Ctr Excellence, I-10125 Turin, Italy . [Innocenti, Claudia] Univ Firenze, Dipartimento Chim, I-50019 Sesto Fiorentino, Italy; INSTM, I-50019 Sesto Fiorentino, Italy . [Sangregorio, Claudio] CNR ISTM, I-20133 Milan, Italy. (literal)
Titolo
  • “Bio-functionalization of anisotropic nanocrystalline semiconductor-magnetic heterostructures” (literal)
Abstract
  • Asymmetric binary nanocrystals (BNCs) formed by a spherical gamma-Fe(2)O(3) magnetic domain epitaxially grown onto a lateral facet of a rodlike anatase TiO(2) nanorod have been functionalized with PEG-terminated phospholipids, resulting in a micellar system that enables the BNC dispersion in aqueous solution. The further processability of the obtained water-soluble BNC including PEG lipid micelles and their use in bioconjugation experiments has been successfully demonstrated by covalently binding to bovine serum albumin (BSA). The whole process has also been preliminarily performed on spherical iron oxide nanocrystals (NCs) and TiO(2) nanorods (NRs), which form single structural units in the heterostructures. Each step has been thoroughly monitored by using optical, structural, and electrophoretic techniques. In addition, an investigation of the magnetic behavior of the iron oxide NCs and BNCs, before and after incorporation into PEG lipid micelles and subsequently bioconjugation, has been carried out, revealing that the magnetic characteristics are mostly retained. The proposed approach to achieving water-soluble anisotropic BNCs and their bioconjugates has a large potential in catalysis and biomedicine and offers key functional building blocks for biosensor applications. (literal)
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