scholarly journals Monitoring of the Interaction of Chromium (VI) on the Growth Profile of Chlorophyceae Marine Microalga Chlorella vulgaris in Controlled Laboratory Condition

2016 ◽  
Vol 3 (1) ◽  
Keyword(s):  
Laboratory Condition ◽  
Chlorella Vulgaris ◽  
Growth Profile ◽  
Chromium Vi ◽  
Marine Microalga

Photoreduction of chromium(VI) in microstructured ceramic hollow fibers impregnated with titanium dioxide and coated with green algae Chlorella vulgaris

2019 ◽  
Vol 379 ◽  
pp. 120837 ◽  
Author(s):  
Igor G.F. Costa ◽  
Natália M. Terra ◽  
Vicelma L. Cardoso ◽  
Fabiana R.X. Batista ◽  
Miria H.M. Reis
Keyword(s):  
Titanium Dioxide ◽  
Green Algae ◽  
Chlorella Vulgaris ◽  
Hollow Fibers ◽  
Chromium Vi

scholarly journals Toxicity Effect of Silver Nanoparticles on Photosynthetic Pigment Content, Growth, ROS Production and Ultrastructural Changes of Microalgae Chlorella vulgaris

Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 914 ◽  
Author(s):  
Layla J. Hazeem ◽  
Gamze Kuku ◽  
Etienne Dewailly ◽  
Christian Slomianny ◽  
Alexandre Barras ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Chlorella Vulgaris ◽  
Photosynthetic Pigment ◽  
Viable Cell ◽  
Ultrastructural Changes ◽  
Exponential Growth Phase ◽  
Ag Nps ◽  
Tem Analysis ◽  
Variable Effect ◽  
Marine Microalga

Silver nanoparticles (Ag NPs) exhibit antibacterial activity and are extensively used in numerous applications. The aim of this study was to examine the toxic effect of Ag NPs on the marine microalga, Chlorella vulgaris. The microalgae, at the exponential growth phase, were treated with different concentrations of Ag NPs (50 and 100 nm) for 96 h. X-Ray diffraction (XRD) results indicated that the used NPs are single and pure Ag phase with a mean crystallite size of 21 and 32 nm. Ag NPs were found to have a negative effect on viable cell concentration, a variable effect on chlorophyll a concentration, and increased ROS formation. Transmission electron microscopy (TEM) analysis revealed that Ag NPs were present inside the microalgae cells and formed large aggregates in the culture medium. Ag+ ions, in the form of AgNO3, were also assessed at higher concentrations and found to cause inhibitory effects.

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