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  • Autofluorescence generation and elimination: a lesson from glutaraldehyde.

Autofluorescence generation and elimination: a lesson from glutaraldehyde.

Chemical communications (Cambridge, England) (2013-03-07)
Kwahun Lee, Sungmoon Choi, Chun Yang, Hai-Chen Wu, Junhua Yu
ABSTRACT

Glutaraldehyde causes especially high autofluorescence. It reacted with proteins and peptides to generate visible to near-IR emitters. A model indicated that ethylenediamine and a secondary amine in the molecule were key components for the formation of emissive species. The mechanism enables us to control the generation and elimination of autofluorescence.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Ethylenediamine dihydrochloride, 98%
Sigma-Aldrich
Glutaraldehyde solution, technical, ~50% in H2O (5.6 M)
Sigma-Aldrich
Glutaraldehyde solution, Grade I, 70% in H2O, specially purified for use as an electron microscopy fixative or other sophisticated use
Sigma-Aldrich
Glutaraldehyde solution, Grade I, 25% in H2O, specially purified for use as an electron microscopy fixative
Sigma-Aldrich
Glutaraldehyde solution, Grade I, 50% in H2O, specially purified for use as an electron microscopy fixative or other sophisticated use
Sigma-Aldrich
Glutaraldehyde solution, 50% in H2O, suitable for photographic applications
Sigma-Aldrich
Glutaraldehyde solution, Grade II, 25% in H2O
Sigma-Aldrich
Glutaraldehyde solution, Grade I, 8% in H2O, specially purified for use as an electron microscopy fixative or other sophisticated use
Sigma-Aldrich
Glutaraldehyde solution, 50 wt. % in H2O
Supelco
Ethylenediamine, analytical standard
Sigma-Aldrich
Ethylenediamine, meets USP testing specifications
Sigma-Aldrich
Ethylenediamine, BioXtra
Sigma-Aldrich
Ethylenediamine, puriss. p.a., absolute, ≥99.5% (GC)
Sigma-Aldrich
Ethylenediamine solution, technical, 75-80%
Sigma-Aldrich
Ethylenediamine, purified by redistillation, ≥99.5%
Sigma-Aldrich
Ethylenediamine, ReagentPlus®, ≥99%