Fluorescence imaging of cells using long-range electromagnetic surface waves for excitation.
Appl Opt
; 59(16): 4833-4838, 2020 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-32543477
ABSTRACT
We present a depth-localized illumination technique for wide-field fluorescence microscopy, based on long-range optical surface waves. This technique allows one to excite the fluorescence only in a thin near-substrate layer of the specimen. Our experimental setup is compatible with both upright and inverted microscopes. It provides fluorescent microscopic images, which are superior to the epifluorescence ones in signal-to-noise ratio, contrast, and detail. We demonstrate the applicability of our technique for imaging both bacterial and eukaryotic cells (E. coli and HeLa, respectively).
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Radiação Eletromagnética
/
Microscopia de Fluorescência
Limite:
Humans
Idioma:
En
Revista:
Appl Opt
Ano de publicação:
2020
Tipo de documento:
Article