A Novel Approach to Monodisperse, Luminescent Silica Spheres

Jakob, Adam M.; Schmedake, Thomas A.

doi:10.1021/cm060664t

Cited by 75 publications

(63 citation statements)

References 15 publications

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“…Chen et al [50] also demonstrated that at basic pH, the terminal protonated amine (-NH 3 þ ) group is prone to hydrogen bonding to the Si-O À group of a second APTES molecule. This bond might be strong enough to avoid condensation with other APTES molecules, which was confirmed by a previous study [51].…”

Section: Influence Of the Silica/spions Ratios On Morphologysupporting

confidence: 83%

Preparation and characterization of functional silica hybrid magnetic nanoparticles

Digigow

Dechézelles

Dietsch

et al. 2014

Journal of Magnetism and Magnetic Materials

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We report on the synthesis and characterization of functional silica hybrid magnetic nanoparticles (SHMNPs). The co-condensation of 3-aminopropyltriethoxysilane (APTES) and tetraethyl orthosilicate (TEOS) in presence of superparamagnetic iron oxide nanoparticles (SPIONs) leads to hybrid magnetic silica particles that are surface-functionalized with primary amino groups. In this work, a comprehensive synthetic study is carried out and completed by a detailed characterization of hybrid particles' size and morphology, surface properties, and magnetic responses using different techniques. Depending on the mass ratio of SPIONs and the two silanes (TEOS and APTES), we were able to adjust the number of surface amino groups and tune the magnetic properties of the superparamagnetic hybrid particles.

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Section: Influence Of the Silica/spions Ratios On Morphologysupporting

confidence: 83%

Preparation and characterization of functional silica hybrid magnetic nanoparticles

Digigow

Dechézelles

Dietsch

et al. 2014

Journal of Magnetism and Magnetic Materials

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show abstract

“…The above-mentioned methods provided a simple and convenient process for luminescent silica spheres without addition of inorganic or organic fluorophores. The submicrometer size was in the range of 150-250 nm in Schmedake's report [20], and 50-250 nm spheres in Tan's report under their operating conditions, respectively [21]. As we see, the control of size and the fundamental understanding of the emission mechanism are important to the phosphor materials.…”

Section: Introductionmentioning

confidence: 78%

“…Inorganic emission centers can be doped into silica spheres with lanthanides [16] and quantum dots [17], or inorganic phosphor layers can be coated on spherical silica by a sol-gel method [18,19]. Besides, monodisperse and luminescent silica spheres produced by calcinations of hybrid aminopropyl-silica spheres have been reported [20,21]. The above-mentioned methods provided a simple and convenient process for luminescent silica spheres without addition of inorganic or organic fluorophores.…”

Section: Introductionmentioning

confidence: 99%

Tunable photoluminescence in monodisperse silica spheres

Kong

Zhang

et al. 2010

Journal of Colloid and Interface Science

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“…The resulting mixture was stirred under nitrogen until the starting material was consumed (monitored by TLC). Then the mixture was diluted with anhydrous ether (100 mL), the product was precipitated out as a sticky semisolid material, which was further purified by silica-gel chromatography using (10:1) (m,2H,NCH 2 ), 3.90 (m, 2H, NCH 2 ), 3.77 (q, J 6.0, 6H, OCH 2 CH 3 ), 3.20 (m, 2H, NHCH 2 ), 2.74 (m, 2H, OCCH 2 CH 2 ), 1.81(m, 2H, CH 2 CH 2 CH 3 ), 1.64 (s, 12H, CH 3 ), 1.19(t, J 6.0, 9H, SiOCH 2 CH 3 ), 1.05 (t, J 6.0, 3H, NCH 2 CH 2 CH 3 ), 0.61 (m, 2H, SiCH 2 CH 2 ).…”

Section: Synthesis Of 1 (Scheme 1)mentioning

confidence: 99%