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In vivo observation of chlorophyll fluorescence quenching induced by gold nanoparticles

Paper ID Volume ID Publish Year Pages File Format Full-Text
26674 43970 2011 7 PDF Available
Title
In vivo observation of chlorophyll fluorescence quenching induced by gold nanoparticles
Abstract

To our knowledge, the present work reports the first in vivo observation of chlorophyll a fluorescence quenching induced by gold nanoparticles. Laser-induced fluorescence spectroscopy was used to collect in vivo chlorophyll a fluorescence, using a portable optical fiber-based spectrofluorimeter. Fluorescence quenching was observed for all plants submitted to the gold nanoparticle treatment, and both excitation wavelengths, 405 nm and 532 nm, were capable of detecting interactions between gold nanoparticles and plants. Our results also suggest that gold nanoparticles were able to translocate and accumulate in the soybean plants after seed inoculation.

► We examine the interaction between gold nanoparticles and chlorophyll molecules. ► We evaluate the effects of gold nanoparticle sizes and concentrations. ► Gold nanoparticles induce quenching of chlorophyll fluorescence. ► The quenching depends on the particle size and concentration. ► Quenching of chlorophyll fluorescence has been detected in vivo.

Keywords
Chlorophyll; Fluorescence spectroscopy; Gold nanoparticle; Plant; In vivo
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 225, Issue 1, 1 December 2011, Pages 65–71
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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