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Updated: Jul 5, 2026

Fluorescent Nanoparticles for the Measurement of Ion Concentration in Biological Systems
08:17

Fluorescent Nanoparticles for the Measurement of Ion Concentration in Biological Systems

Published on: July 4, 2011

Publisher's Note: "Low-cost device for ratiometric fluorescence measurements" [Rev. Sci. Instrum. 70, 4466-4470

Yordan Kostov1, Govind Rao1,2

  • 1Medical Biotechnology Center and Department of Chemical and Biochemical Engineering, University of Maryland Biotechnology Institute, Baltimore, Maryland 21201, USA.

The Review of Scientific Instruments
|October 3, 2024
PubMed
Abstract

No abstract available in PubMed .

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Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.