English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

In the present study, Cd 2+  adsorption on polyacrylate-coated TiO 2  engineered nanoparticles (TiO 2 -ENs) and its effect on the bioavailability as well as toxicity of Cd 2+  to a green alga  Chlamydomonas reinhardtii  were investigated. TiO 2 -ENs could be well dispersed in the experimental medium and their pH pzc  is approximately 2. There was a quick adsorption of Cd 2+  on TiO 2 -ENs and a steady state was reached within 30 min. A pseudo-first order kinetics was found for the time-related changes in the amount of Cd 2+  complexed with TiO 2 -ENs. At equilibrium, Cd 2+  adsorption followed the Langmuir isotherm with the maximum binding capacity 31.9, 177.1, and 242.2 mg/g when the TiO 2 -EN concentration was 1, 10, and 100 mg/l, respectively. On the other hand, Cd 2+  toxicity was alleviated in the presence of TiO 2 -ENs. Algal growth was less suppressed in treatments with comparable total Cd 2+  concentration but more TiO 2 -ENs. However, such toxicity difference disappeared and all the data points could be fitted to a single Logistic dose-response curve when cell growth inhibition was plotted against the free Cd 2+  concentration. No detectable amount of TiO 2 -ENs was found to be associated with the algal cells. Therefore, TiO 2 -ENs could reduce the free Cd 2+  concentration in the toxicity media, which further lowered its bioavailability and toxicity to  C. reinhardtii .

Cd2+ Toxicity to a Green Alga Chlamydomonas reinhardtii as Influenced by Its Adsorption on TiO2 Engineered Nanoparticles