Effects of Quantum Dots Adsorption on Algal Photosynthesis

被引：77

作者：

Lin, Sijie ^{[1
]}

Bhattacharya, Priyanka ^{[1
,4
]}

Rajapakse, Nihal C. ^{[2
]}

Brune, David E. ^{[3
]}

Ke, Pu Chun ^{[1
,4
]}

机构：

[1] Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA

[2] Clemson Univ, Dept Hort, Clemson, SC 29634 USA

[3] Clemson Univ, Dept Agr & Biol Engn, Clemson, SC 29634 USA

[4] Clemson Univ, Ctr Opt Mat Sci & Engn, Clemson, SC 29634 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 25期

基金：

美国国家科学基金会;

关键词：

NANOPARTICLES; TOXICITY;

D O I：

10.1021/jp904343s

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on the adsorption of CdSe/ZnS quantum dots and its effects on algal photosynthesis. A logarithmic trend was established for the adsorption process using UV-vis spectrophotometry, with Freundlich constants determined as k = 0.588 ppm(1-n) and n = 0.629. Both our CO2 depletion and O-2 production assays showed a significantly inhibited photosynthetic activity of the algae exposed to the quantum dots, suggesting the potential impact of nanoparticle adsorption on the photochemistry of plant species.

引用

页码：10962 / 10966

页数：5

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