To duckweeds (Landoltia punctata), nanoparticulate copper oxide is more inhibitory than the soluble copper in the bulk solution

Jiyan Shi, Aamir D. Abid, Ian M. Kennedy, Krassimira R. Hristova, Wendy K. Silk

Research output: Contribution to journalArticle

119 Citations (Scopus)

Abstract

CuO nanoparticles (CuO-NP) were synthesized in a hydrogen diffusion flame. Particle size and morphology were characterized using scanning mobility particle sizing, Brunauer-Emmett-Teller analysis, dynamic light scattering, and transmission electron microscopy. The solubility of CuO-NP varied with both pH and presence of other ions. CuO-NP and comparable doses of soluble Cu were applied to duckweeds, Landoltia punctata. Growth was inhibited 50% by either 0.6 mg L-1 soluble copper or by 1.0 mg L-1 CuO-NP that released only 0.16 mg L-1 soluble Cu into growth medium. A significant decrease of chlorophyll was observed in plants stressed by 1.0 mg L-1 CuO-NP, but not in the comparable 0.2 mg L-1 soluble Cu treatment. The Cu content of fronds exposed to CuO-NP is four times higher than in fronds exposed to an equivalent dose of soluble copper, and this is enough to explain the inhibitory effects on growth and chlorophyll content.

Original languageEnglish (US)
Pages (from-to)1277-1282
Number of pages6
JournalEnvironmental Pollution
Volume159
Issue number5
DOIs
StatePublished - May 2011

Fingerprint

Copper oxides
Nanoparticles
Oxides
Copper
Chlorophyll
Growth
Dynamic light scattering
Light transmission
Transmission Electron Microscopy
Particle Size
Solubility
Hydrogen
Particle size
Ions
Transmission electron microscopy
Scanning

Keywords

  • Aquatic plants
  • Copper
  • Copper oxide nanoparticles
  • Duckweed
  • Toxicity

ASJC Scopus subject areas

  • Pollution
  • Health, Toxicology and Mutagenesis
  • Toxicology

Cite this

To duckweeds (Landoltia punctata), nanoparticulate copper oxide is more inhibitory than the soluble copper in the bulk solution. / Shi, Jiyan; Abid, Aamir D.; Kennedy, Ian M.; Hristova, Krassimira R.; Silk, Wendy K.

In: Environmental Pollution, Vol. 159, No. 5, 05.2011, p. 1277-1282.

Research output: Contribution to journalArticle

Shi, Jiyan ; Abid, Aamir D. ; Kennedy, Ian M. ; Hristova, Krassimira R. ; Silk, Wendy K. / To duckweeds (Landoltia punctata), nanoparticulate copper oxide is more inhibitory than the soluble copper in the bulk solution. In: Environmental Pollution. 2011 ; Vol. 159, No. 5. pp. 1277-1282.
@article{d2eb8b8fed9545c5868249f22c86e1a5,
title = "To duckweeds (Landoltia punctata), nanoparticulate copper oxide is more inhibitory than the soluble copper in the bulk solution",
abstract = "CuO nanoparticles (CuO-NP) were synthesized in a hydrogen diffusion flame. Particle size and morphology were characterized using scanning mobility particle sizing, Brunauer-Emmett-Teller analysis, dynamic light scattering, and transmission electron microscopy. The solubility of CuO-NP varied with both pH and presence of other ions. CuO-NP and comparable doses of soluble Cu were applied to duckweeds, Landoltia punctata. Growth was inhibited 50{\%} by either 0.6 mg L-1 soluble copper or by 1.0 mg L-1 CuO-NP that released only 0.16 mg L-1 soluble Cu into growth medium. A significant decrease of chlorophyll was observed in plants stressed by 1.0 mg L-1 CuO-NP, but not in the comparable 0.2 mg L-1 soluble Cu treatment. The Cu content of fronds exposed to CuO-NP is four times higher than in fronds exposed to an equivalent dose of soluble copper, and this is enough to explain the inhibitory effects on growth and chlorophyll content.",
keywords = "Aquatic plants, Copper, Copper oxide nanoparticles, Duckweed, Toxicity",
author = "Jiyan Shi and Abid, {Aamir D.} and Kennedy, {Ian M.} and Hristova, {Krassimira R.} and Silk, {Wendy K.}",
year = "2011",
month = "5",
doi = "10.1016/j.envpol.2011.01.028",
language = "English (US)",
volume = "159",
pages = "1277--1282",
journal = "Environmental Pollution",
issn = "0269-7491",
publisher = "Elsevier Limited",
number = "5",

}

TY - JOUR

T1 - To duckweeds (Landoltia punctata), nanoparticulate copper oxide is more inhibitory than the soluble copper in the bulk solution

AU - Shi, Jiyan

AU - Abid, Aamir D.

AU - Kennedy, Ian M.

AU - Hristova, Krassimira R.

AU - Silk, Wendy K.

PY - 2011/5

Y1 - 2011/5

N2 - CuO nanoparticles (CuO-NP) were synthesized in a hydrogen diffusion flame. Particle size and morphology were characterized using scanning mobility particle sizing, Brunauer-Emmett-Teller analysis, dynamic light scattering, and transmission electron microscopy. The solubility of CuO-NP varied with both pH and presence of other ions. CuO-NP and comparable doses of soluble Cu were applied to duckweeds, Landoltia punctata. Growth was inhibited 50% by either 0.6 mg L-1 soluble copper or by 1.0 mg L-1 CuO-NP that released only 0.16 mg L-1 soluble Cu into growth medium. A significant decrease of chlorophyll was observed in plants stressed by 1.0 mg L-1 CuO-NP, but not in the comparable 0.2 mg L-1 soluble Cu treatment. The Cu content of fronds exposed to CuO-NP is four times higher than in fronds exposed to an equivalent dose of soluble copper, and this is enough to explain the inhibitory effects on growth and chlorophyll content.

AB - CuO nanoparticles (CuO-NP) were synthesized in a hydrogen diffusion flame. Particle size and morphology were characterized using scanning mobility particle sizing, Brunauer-Emmett-Teller analysis, dynamic light scattering, and transmission electron microscopy. The solubility of CuO-NP varied with both pH and presence of other ions. CuO-NP and comparable doses of soluble Cu were applied to duckweeds, Landoltia punctata. Growth was inhibited 50% by either 0.6 mg L-1 soluble copper or by 1.0 mg L-1 CuO-NP that released only 0.16 mg L-1 soluble Cu into growth medium. A significant decrease of chlorophyll was observed in plants stressed by 1.0 mg L-1 CuO-NP, but not in the comparable 0.2 mg L-1 soluble Cu treatment. The Cu content of fronds exposed to CuO-NP is four times higher than in fronds exposed to an equivalent dose of soluble copper, and this is enough to explain the inhibitory effects on growth and chlorophyll content.

KW - Aquatic plants

KW - Copper

KW - Copper oxide nanoparticles

KW - Duckweed

KW - Toxicity

UR - http://www.scopus.com/inward/record.url?scp=79954415531&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79954415531&partnerID=8YFLogxK

U2 - 10.1016/j.envpol.2011.01.028

DO - 10.1016/j.envpol.2011.01.028

M3 - Article

C2 - 21333422

AN - SCOPUS:79954415531

VL - 159

SP - 1277

EP - 1282

JO - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

IS - 5

ER -