Biofunctionalization of Fluorescent Rare‐Earth‐Doped Lanthanum Phosphate Colloidal Nanoparticles

Meiser, Felix; Cortez, Christina; Caruso, Frank

doi:10.1002/anie.200460856

Cited by 326 publications

(213 citation statements)

References 32 publications

Supporting

Mentioning

208

Contrasting

Order By: Relevance

“…Again, the attachment of larger biomolecules can be observed by the increase of the total particle size as discussed before. In combination with organic fluorophores conjugated to the molecule of interest, the presence of those molecules on the particle surface can be accessed by the absorption or fluorescence emission (Demers et al 2000;Meiser et al 2004;Sari et al 2004;Hurst et al 2006), or by stepwise photobleaching of the organic dye (Casanova et al 2007). …”

Section: (E) Characterizationmentioning

confidence: 99%

Surface modification, functionalization and bioconjugation of colloidal inorganic nanoparticles

Sperling

Parak

2010

Phil. Trans. R. Soc. A.

1,394

1,092

View full text Add to dashboard Cite

Inorganic colloidal nanoparticles are very small, nanoscale objects with inorganic cores that are dispersed in a solvent. Depending on the material they consist of, nanoparticles can possess a number of different properties such as high electron density and strong optical absorption (e.g. metal particles, in particular Au), photoluminescence in the form of fluorescence (semiconductor quantum dots, e.g. CdSe or CdTe) or phosphorescence (doped oxide materials, e.g. Y 2 O 3 ), or magnetic moment (e.g. iron oxide or cobalt nanoparticles). Prerequisite for every possible application is the proper surface functionalization of such nanoparticles, which determines their interaction with the environment. These interactions ultimately affect the colloidal stability of the particles, and may yield to a controlled assembly or to the delivery of nanoparticles to a target, e.g. by appropriate functional molecules on the particle surface. This work aims to review different strategies of surface modification and functionalization of inorganic colloidal nanoparticles with a special focus on the material systems gold and semiconductor nanoparticles, such as CdSe/ZnS. However, the discussed strategies are often of general nature and apply in the same way to nanoparticles of other materials.

show abstract

Section: (E) Characterizationmentioning

confidence: 99%

Surface modification, functionalization and bioconjugation of colloidal inorganic nanoparticles

Sperling

Parak

2010

Phil. Trans. R. Soc. A.

1,394

1,092

View full text Add to dashboard Cite

show abstract

“…A later work reported by the same group indicates that a luminescence quantum yield up to 61% can be achieved in this luminescent Ce 3+ /Tb 3+ codoped downconversion nanoparticles (Meyssamy et al, 2001)]. The reported low toxicity and luminescence stability allow these Ln 3+ doped LaPO 4 to be potentially used as biolabels towards clinical practices (Hutchison 1999;de Sousa Filho and Serra, 2011;Meiser et al, 2004 (Luwang et al, 2011;Mai et al, 2007;Yang et al, 2009;Li et al, 2009 (Balakrishnaiah et al, 2010). Both results suggest that the LnPO 4 material is promising host lattice for Ln 3+ ions to produce superior upconversion luminescence along the well-established fact on producing efficient downconversion luminescence.…”

Section: Introductionmentioning

confidence: 85%

pH Mediated Control Synthesis of Lanthanide-Doped YPO4 Upconversion Nano/Microcrystals

Tan¹,

Hao²,

Meng³

et al. 2015

American Journal of Engineering and Applied Sciences

View full text Add to dashboard Cite

A pH-mediated rational control over the phase transformation, morphology and size of lanthanide doped YPO 4 nano/microcrystals has been accomplished using a hydrothermal route. The morphology of the resulting particles evolves from the spheres, to the nanoflakes and finally to the nanorods when increasing the pH value of the reaction solution from 1 to 9, while the induction of crystal phase transformation from a tetragonal structure to a hexagonal structure takes place at pH = 5. When excited at 980 nm, the hexagonal phase YPO 4 •0.8H 2 O: 18%Yb3+ nanoflakes prepared at pH = 7 exhibit the strongest UC emission intensity among investigated samples of varying size, phase and morphologies. This work provides a paradigm on the controlled synthesis of lanthanide doped upconverting orthophosphates, which hold great promise for various photonic and biophotonic applications.

show abstract

“…2, No. 1;2013 europium (Onoda & Funamoto, 2012). The optimum europium ratio was different with the synthetic process of lanthanum polyphosphate.…”

Section: Chemical Compositions and Powder Properties Of Europium-subsmentioning

confidence: 99%

“…Orthophosphate materials have been used for ceramic materials, catalysts, fluorescent materials, dielectric substances, metal surface treatment, detergent, food additives, fuel cells, pigments, etc. (Shuetz & Caruso, 2002;Meiser et al, 2004). The condensed phosphates have different properties from those of orthophosphates and can therefore be used as novel functional materials , Onoda et al, 2005Briche et al, 2010;Onoda et al, 2010).…”

Section: Introducationmentioning

confidence: 99%

Synthesis and Fluorescence Properties of Europium - Substituted Lanthanum Polyphosphates

Onoda¹,

Funamoto²

2012

JMSR

View full text Add to dashboard Cite

Europium-substituted lanthanum polyphosphates (Eu; 0, 1, 2, 3, 4, 5, and 10 mol%) were prepared from lanthanum nitrate, europium nitrate, and sodium polyphosphate solutions. The obtained phosphates were estimated using XRD patterns, TG-DTA curves, SEM images, and particle size distributions. The fluorescence spectra were estimated as functional properties of these phosphate materials. The obtained samples crystallized by heating at 600ºC. Lanthanum polyphosphates were stable from 600 to 850ºC. The 5 mol% europium-substituted lanthanum polyphosphate showed a strong peak at 615 nm.

show abstract

Biofunctionalization of Fluorescent Rare‐Earth‐Doped Lanthanum Phosphate Colloidal Nanoparticles

Cited by 326 publications

References 32 publications

Surface modification, functionalization and bioconjugation of colloidal inorganic nanoparticles

Surface modification, functionalization and bioconjugation of colloidal inorganic nanoparticles

pH Mediated Control Synthesis of Lanthanide-Doped YPO4 Upconversion Nano/Microcrystals

Synthesis and Fluorescence Properties of Europium - Substituted Lanthanum Polyphosphates

Contact Info

Product

Resources

About