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Issue 14, 2015
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An overview of nanoparticles commonly used in fluorescent bioimaging

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Abstract

This article gives an overview of the various kinds of nanoparticles (NPs) that are widely used for purposes of fluorescent imaging, mainly of cells and tissues. Following an introduction and a discussion of merits of fluorescent NPs compared to molecular fluorophores, labels and probes, the article assesses the kinds and specific features of nanomaterials often used in bioimaging. These include fluorescently doped silicas and sol–gels, hydrophilic polymers (hydrogels), hydrophobic organic polymers, semiconducting polymer dots, quantum dots, carbon dots, other carbonaceous nanomaterials, upconversion NPs, noble metal NPs (mainly gold and silver), various other nanomaterials, and dendrimers. Another section covers coatings and methods for surface modification of NPs. Specific examples on the use of nanoparticles in (a) plain fluorescence imaging of cells, (b) targeted imaging, (c) imaging of chemical species, and (d) imaging of temperature are given next. A final section covers aspects of multimodal imaging (such as fluorescence/nmr), imaging combined with drug and gene delivery, or imaging combined with therapy or diagnosis. The electronic supplementary information (ESI) gives specific examples for materials and methods used in imaging, sensing, multimodal imaging and theranostics such as imaging combined with drug delivery or photodynamic therapy. The article contains 273 references in the main part, and 157 references in the ESI.

Graphical abstract: An overview of nanoparticles commonly used in fluorescent bioimaging

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Publication details

The article was received on 16 Nov 2014 and first published on 26 Jan 2015


Article type: Review Article
DOI: 10.1039/C4CS00392F
Citation: Chem. Soc. Rev., 2015,44, 4743-4768
  • Open access: Creative Commons BY license
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    An overview of nanoparticles commonly used in fluorescent bioimaging

    O. S. Wolfbeis, Chem. Soc. Rev., 2015, 44, 4743
    DOI: 10.1039/C4CS00392F

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