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Fluorescent Nanowire Heterostructures as a Versatile Tool for Biology Applications

Författare

Summary, in English

Nanowires are increasingly used in biology, as sensors, as injection devices, and us model systems for toxicity studies. Currently, in situ visualization of nanowires in biological media is done using organic dyes, which a;:e prone to photobleaching, or using microscopy methods which either yield poor resolution or require a sophisticated setup. Here we show that inherently fluorescent nanowire axial heterostructnies c:an be used to localize and identify nanowires in cells and tissue; By synthesizing GaP GaInP nanowire heterostructures, with nonfluorescent GaP segments and fluorescent GaInP segments, we created a barcode labeling system enabling the distinction of the nanowire morphological and chemical properties using fluorescence microscopy. The GaInP photoluminescence stability, combined with the fact that the nanowires can be coated with different materials while retaining their fluorescence, make these nanowires promising tools for biological and nanotoxicological studies.

Avdelning/ar

Publiceringsår

2013

Språk

Engelska

Sidor

4728-4732

Publikation/Tidskrift/Serie

Nano Letters

Volym

13

Issue

10

Dokumenttyp

Artikel i tidskrift

Förlag

The American Chemical Society (ACS)

Ämne

  • Nano Technology

Nyckelord

  • Nanowires
  • fluorescence
  • photoluminescence
  • photobleaching
  • cells
  • toxicology

Status

Published

Forskningsgrupp

  • Neuronano Research Center (NRC)

ISBN/ISSN/Övrigt

  • ISSN: 1530-6992