Super‐Stable, High‐Quality Fe3O4 Dendron–Nanocrystals Dispersible in Both Organic and Aqueous Solutions

High-quality Fe3 O4 nanocrystals coated with stearate groups are successfully converted to dendron-coated nanocrystals (dendron-nanocrystals). Poly(ethylene glycol) oligomers are used as major terminal groups for the dendron ligands, which afford excellent dispersibility of the dendron-nanocrystals in a broad spectrum of solvents, ranging from dichloromethane to water.

[1]  Xiaogang Peng,et al.  Size- and Shape-Controlled Magnetic (Cr, Mn, Fe, Co, Ni) Oxide Nanocrystals via a Simple and General Approach , 2004 .

[2]  Q. Song,et al.  Shape control and associated magnetic properties of spinel cobalt ferrite nanocrystals. , 2004, Journal of the American Chemical Society.

[3]  A. Alivisatos,et al.  Collective behaviour in two-dimensional cobalt nanoparticle assemblies observed by magnetic force microscopy , 2004, Nature materials.

[4]  Xiaogang Peng,et al.  Conjugation Chemistry and Bioapplications of Semiconductor Box Nanocrystals Prepared via Dendrimer Bridging , 2003 .

[5]  Dorothy Farrell,et al.  Gold-coated iron nanoparticles for biomedical applications , 2003 .

[6]  Xiaogang Peng,et al.  Luminescent CdSe/CdS core/shell nanocrystals in dendron boxes: superior chemical, photochemical and thermal stability. , 2003, Journal of the American Chemical Society.

[7]  J. Ziller,et al.  Dinitrogen reduction by TmII, DyII, and NdII with simple amide and aryloxide ligands. , 2003, Journal of the American Chemical Society.

[8]  Z John Zhang,et al.  Atom transfer radical polymerization synthesis and magnetic characterization of MnFe2O4/polystyrene core/shell nanoparticles. , 2002, Journal of the American Chemical Society.

[9]  P. Couvreur,et al.  Nanoparticles in cancer therapy and diagnosis. , 2002, Advanced drug delivery reviews.

[10]  Hao Zeng,et al.  Size-controlled synthesis of magnetite nanoparticles. , 2002, Journal of the American Chemical Society.

[11]  Xiaogang Peng,et al.  Stabilization of inorganic nanocrystals by organic dendrons. , 2002, Journal of the American Chemical Society.

[12]  U. Wille.  Self-terminating, oxidative radical cyclizations: a novel reaction of acyloxyl radicals. , 2002, Journal of the American Chemical Society.

[13]  Taeghwan Hyeon,et al.  Synthesis of highly crystalline and monodisperse maghemite nanocrystallites without a size-selection process. , 2001, Journal of the American Chemical Society.

[14]  Ralph Weissleder,et al.  Magnetic Nanosensors for the Detection of Oligonucleotide Sequences. , 2001, Angewandte Chemie.

[15]  Xiaogang Peng,et al.  Photochemical instability of CdSe nanocrystals coated by hydrophilic thiols. , 2001, Journal of the American Chemical Society.

[16]  Jean M. J. Fréchet,et al.  Dendritic Encapsulation of Function: Applying Nature's Site Isolation Principle from Biomimetics to Materials Science. , 2001, Angewandte Chemie.

[17]  U. Häfeli,et al.  Radiolabeling of magnetic particles with rhenium-188 for cancer therapy , 2001 .

[18]  R L Sandstrom,et al.  Spin-dependent tunneling in self-assembled cobalt-nanocrystal superlattices. , 2000, Science.

[19]  R Weissleder,et al.  Improvement of MRI probes to allow efficient detection of gene expression. , 2000, Bioconjugate chemistry.

[20]  N. Kotov,et al.  Stratified Assemblies of Magnetite Nanoparticles and Montmorillonite Prepared by the Layer-by-Layer Assembly , 2000 .

[21]  Z. J. Zhang,et al.  SIZE-DEPENDENT SUPERPARAMAGNETIC PROPERTIES OF MGFE2O4 SPINEL FERRITE NANOCRYSTALLITES , 1998 .

[22]  G. Whitesides,et al.  Self-Assembled Monolayers of Long-Chain Hydroxamic Acids on the Native Oxides of Metals , 1995 .