Water-Dispersible, Multifunctional, Magnetic, Luminescent Silica-Encapsulated Composite Nanotubes
Hongjun Zhou
Department of Chemistry State University of New York at Stony Brook Stony Brook, NY 11794 (USA)
Current address: Department of Chemistry & Biochemistry The University of Texas at Austin Austin, TX 78712-0165 (USA)
Search for more papers by this authorJingyi Chen
Condensed Matter Physics and Materials Sciences Department Brookhaven National Laboratory Building 480, Upton, NY 11973 (USA)
Current address: Department of Biomedical Engineering Whitaker Hall, Washington University St. Louis, MO 63130 (USA)
Search for more papers by this authorEli Sutter
Center for Functional Nanomaterials Brookhaven National Laboratory Building 735, Upton, NY 11973 (USA)
Search for more papers by this authorMikhail Feygenson
Condensed Matter Physics and Materials Sciences Department Brookhaven National Laboratory Building 480, Upton, NY 11973 (USA)
Search for more papers by this authorM. C. Aronson
Condensed Matter Physics and Materials Sciences Department Brookhaven National Laboratory Building 480, Upton, NY 11973 (USA)
Department of Physics State University of New York at Stony Brook Stony Brook, NY 11794 (USA)
Search for more papers by this authorCorresponding Author
Stanislaus S. Wong
Department of Chemistry State University of New York at Stony Brook Stony Brook, NY 11794 (USA)
Condensed Matter Physics and Materials Sciences Department Brookhaven National Laboratory Building 480, Upton, NY 11973 (USA)
Department of Chemistry State University of New York at Stony Brook Stony Brook, NY 11794 (USA).Search for more papers by this authorHongjun Zhou
Department of Chemistry State University of New York at Stony Brook Stony Brook, NY 11794 (USA)
Current address: Department of Chemistry & Biochemistry The University of Texas at Austin Austin, TX 78712-0165 (USA)
Search for more papers by this authorJingyi Chen
Condensed Matter Physics and Materials Sciences Department Brookhaven National Laboratory Building 480, Upton, NY 11973 (USA)
Current address: Department of Biomedical Engineering Whitaker Hall, Washington University St. Louis, MO 63130 (USA)
Search for more papers by this authorEli Sutter
Center for Functional Nanomaterials Brookhaven National Laboratory Building 735, Upton, NY 11973 (USA)
Search for more papers by this authorMikhail Feygenson
Condensed Matter Physics and Materials Sciences Department Brookhaven National Laboratory Building 480, Upton, NY 11973 (USA)
Search for more papers by this authorM. C. Aronson
Condensed Matter Physics and Materials Sciences Department Brookhaven National Laboratory Building 480, Upton, NY 11973 (USA)
Department of Physics State University of New York at Stony Brook Stony Brook, NY 11794 (USA)
Search for more papers by this authorCorresponding Author
Stanislaus S. Wong
Department of Chemistry State University of New York at Stony Brook Stony Brook, NY 11794 (USA)
Condensed Matter Physics and Materials Sciences Department Brookhaven National Laboratory Building 480, Upton, NY 11973 (USA)
Department of Chemistry State University of New York at Stony Brook Stony Brook, NY 11794 (USA).Search for more papers by this authorAbstract
A multifunctional one-dimensional nanostructure incorporating both CdSe quantum dots (QDs) and Fe3O4 nanoparticles (NPs) within a SiO2-nanotube matrix is successfully synthesized based on the self-assembly of preformed functional NPs, allowing for control over the size and amount of NPs contained within the composite nanostructures. This specific nanostructure is distinctive because both the favorable photoluminescent and magnetic properties of QD and NP building blocks are incorporated and retained within the final silica-based composite, thus rendering it susceptible to both magnetic guidance and optical tracking. Moreover, the resulting hydrophilic nanocomposites are found to easily enter into the interiors of HeLa cells without damage, thereby highlighting their capability not only as fluorescent probes but also as possible drug-delivery vehicles of interest in nanobiotechnology.
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