Issue 8, 2011
From the journal:

Nanoscale

Trophic transfer of amphiphilic polymer coated CdSe/ZnS quantum dots to Danio rerio†

Nastassja A. Lewinski,a   Huiguang Zhu,b   Clare R. Ouyang,a   George P. Conner,c   Daniel S. Wagner,c   Vicki L. Colvinb  and  Rebekah A. Drezek*a  

* Corresponding authors

a Department of Bioengineering, Rice University, MS-142, P.O. Box 1892, Houston, TX
E-mail: drezek@rice.edu
Fax: +713-348-8099
Tel: +713-348-3011

b Department of Chemistry, Rice University, MS-60, P.O. Box 1892, Houston, TX

c Department of Biochemistry and Cell Biology, Rice University, MS-140,,P.O. Box 1892, Houston, TX

Abstract

To investigate the trophic transfer of nanomaterials along the food chain, we examined the potential trophic transfer and biomagnification of CdSe/ZnS quantum dots (QDs) in a simple freshwater food chain. Our results indicate that QDs can transfer from zooplankton to Danio rerio (zebrafish) by dietary exposure. No significant biomagnification of QDs was observed and the biomagnification factors for both adult and juvenile zebrafish were both less than one (0.04 and 0.004 respectively). The assimilation efficiency was 8% and 4% for adult and juvenile zebrafish respectively. This study is the first to examine the potential food chain transfer and biomagnification of QDs from zooplankton to zebrafish.

Graphical abstract: Trophic transfer of amphiphilic polymer coated CdSe/ZnS quantum dots to Danio rerio

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Article information

DOI
https://doi.org/10.1039/C1NR10319A
Article type
Communication
Submitted
25 Mar 2011
Accepted
30 May 2011
First published
28 Jun 2011

Nanoscale, 2011,3, 3080-3083

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Trophic transfer of amphiphilic polymer coated CdSe/ZnS quantum dots to Danio rerio

N. A. Lewinski, H. Zhu, C. R. Ouyang, G. P. Conner, D. S. Wagner, V. L. Colvin and R. A. Drezek, Nanoscale, 2011, 3, 3080 DOI: 10.1039/C1NR10319A

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