Precipitation as a simple and versatile method for preparation of optical nanochemosensors

Borisov, Sergey M.; Mayr, Torsten; Mistlberger, Günter; Waich, Kerstin; Koren, Klaus; Chojnacki, Pavel; Klimant, Ingo

doi:10.1016/j.talanta.2009.05.041

Cited by 110 publications

(126 citation statements)

References 40 publications

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“…Thus, in order to demonstrate the possibility of such applications we incorporated Eu(HPhN) 3 dpp in gas-blocking polymethacrylonitrile (PMAN) nanoparticles via precipitation method. [63] The nanoparticles are virtually insensitive to oxygen (Fig. 9c).…”

Section: Oxygen-sensitive Nanoparticlesmentioning

confidence: 96%

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Exceptional Oxygen Sensing Properties of New Blue Light‐Excitable Highly Luminescent Europium(III) and Gadolinium(III) Complexes

Borisov

Fischer

Saf

et al. 2014

Adv Funct Materials

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New europium(III) and gadolinium(III) complexes bearing 8-hydroxyphenalenone antenna combine efficient absorption in the blue part of the spectrum and strong emission in polymers at room temperature. The Eu(III) complexes show characteristic red luminescence whereas the Gd(III) dyes are strongly phosphorescent. The luminescence quantum yields are about 20% for the Eu(III) complexes and 50% for the Gd(III) dyes. In contrast to most state-of-the-art Eu(III) complexes the new dyes are quenched very efficiently by molecular oxygen. The luminescence decay times of the Gd(III) complexes exceed 1 ms which ensures exceptional sensitivity even in polymers of moderate oxygen permeability. These sensors are particularly suitable for trace oxygen sensing and may be good substitutes for Pd(II) porphyrins. The photophysical and sensing properties can be tuned by varying the nature of the fourth ligand. The narrow-band emission of the Eu(III) allows efficient elimination of the background light and autofluorescence and is also very attractive for use e.g. in multi-analyte sensors. The highly photostable indicators incorporated in nanoparticles are promising for imaging applications. Due to the straightforward preparation and low cost of starting materials the new dyes represent a promising alternative to the state-ofthe-art oxygen indicators particularly for such applications as e.g. food packaging.

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Section: Oxygen-sensitive Nanoparticlesmentioning

confidence: 96%

“…[62] The Rl-100 and PMAN beads were obtained via the precipitation procedure [63] from the polymer solutions in tetrahydrofuran:acetone (1:1 v/v). The concentration of the polymers in the solvent mixture was 0.2% wt.…”

Section: Europium(iii)/gadolinium(iii) Tris-[9-(hydroxy-ko)-1h-phenalmentioning

confidence: 99%

Exceptional Oxygen Sensing Properties of New Blue Light‐Excitable Highly Luminescent Europium(III) and Gadolinium(III) Complexes

Borisov

Fischer

Saf

et al. 2014

Adv Funct Materials

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“…NPs can also be prepared by the precipitation method, which is based on the use of two miscible solvents (Borisov et al, 2009;Higuchi et al, 2006). The nanobeads are formed by diluting the polymer solution with a poor solvent.…”

Section: Polymer-based Nanoparticlesmentioning

confidence: 99%

“…The diameter of the particles can be controlled by changing the concentration of the solution, and the mixing ratio of the good solvent and the poor solvent, respectively. It should be emphasized that this process does not require the addition of surfactants (and their subsequent removal) as in the case of NSs prepared via polymerization (Borisov et al, 2009). …”

Section: Polymer-based Nanoparticlesmentioning

confidence: 99%

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Optical Chemical Sensors:Design and Applications

Lobnik¹,

Turel²,

Urek³

2012

Advances in Chemical Sensors

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Synthetic Approaches to Organic Nanoparticles

Köstler

Ribitsch

2011

Nanotechnologies for the Life Sciences

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The sections in this article are Introduction Types of Organic Particle and Scope of This Chapter Characteristics of Organic Nanoparticles Methods of Organic Nanoparticle Preparation Top‐Down Approaches to Organic Nanoparticles Reduction of Particle Size by Mechanical Forces Lithographic Methods Bottom‐Up Approaches to Organic Nanoparticles Solution‐Based Bottom‐Up Methods Vapor Condensation‐Based Methods Application of Organic Nanoparticles Summary and Future Perspectives

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Precipitation as a simple and versatile method for preparation of optical nanochemosensors

Cited by 110 publications

References 40 publications

Exceptional Oxygen Sensing Properties of New Blue Light‐Excitable Highly Luminescent Europium(III) and Gadolinium(III) Complexes

Exceptional Oxygen Sensing Properties of New Blue Light‐Excitable Highly Luminescent Europium(III) and Gadolinium(III) Complexes

Optical Chemical Sensors:Design and Applications

Synthetic Approaches to Organic Nanoparticles

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