Dual Visible and Near-Infrared Luminescent Silica Nanoparticles. Synthesis and Aggregation Stability

作者：Fedorenko Svetlana V; Bochkova Olga D; Mustafina Asiya R^*; Burilov Vladimir A; Kadirov Marcel K; Holin Cyril V; Nizameev Irek R; Skripacheva Viktoriya V; Menshikova Anastasiya Yu; Antipin Igor S; Konovalov Alexander I

来源：Journal of Physical Chemistry C, 2010, 114(14): 6350-6355.

DOI：10.1021/jp912225u

Novel silica nanoparticles exhibiting near-infrared (NIR) and dual NIR-visible emission were synthesized according to reverse microemulsion procedure through the encapsulation of Yb(III) complex with p-sulfonatothiacalix[4]atene (Yb) and [Ru(dipy)(3)]Cl(2) (Ru) as NIR- and visible-emitting luminophores into silica matrix The synthesis was carried out at various Yb Ru molar ratio The numbers of Ru and Yb complexes per one nanoparticle were calculated from both fluorimetric and inductively coupled plasma atomic emission spectroscopy data The dynamic light scattering measurements of aqueous dispersions of Yb. Ru, and Ru Yb nanoparticles elucidate the relationship between the complexes inserted into nanoparticles and their aqueous dispersity The transmission electron microscopy images were used to measure the size of the nanoparticles. The atomic force microscopy images reveal the different aggregation morphology of Yb- and Ru-doped nanoparticles

• 出版日期2010-4-15