Combined Toxicity of Silver Nanoparticles with Hematite or Plastic Nanoparticles toward Two Freshwater Algae

2019 ◽  
Vol 53 (7) ◽  
pp. 3871-3879 ◽  
Author(s):  
Bin Huang ◽  
Zhong-Bo Wei ◽  
Liu-Yan Yang ◽  
Ke Pan ◽  
Ai-Jun Miao
Keyword(s):  
Silver Nanoparticles ◽  
Freshwater Algae ◽  
Combined Toxicity

scholarly journals Surface Coating-Modulated Phytotoxic Responses of Silver Nanoparticles in Plants and Freshwater Green Algae

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 24
Author(s):  
Renata Biba ◽  
Karla Košpić ◽  
Bruno Komazec ◽  
Dora Markulin ◽  
Petra Cvjetko ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Surface Coating ◽  
Freshwater Algae ◽  
Growth Physiology ◽  
Gene And Protein Expression ◽  
Wide Range ◽  
Overall Stability ◽  
Particle Size And Shape ◽  
Coating Agents ◽  
Transformation Processes

Silver nanoparticles (AgNPs) have been implemented in a wide range of commercial products, resulting in their unregulated release into aquatic as well as terrestrial systems. This raises concerns over their impending environmental effects. Once released into the environment, they are prone to various transformation processes that modify their reactivity. In order to increase AgNP stability, different stabilizing coatings are applied during their synthesis. However, coating agents determine particle size and shape and influence their solubility, reactivity, and overall stability as well as their behavior and transformations in the biological medium. In this review, we attempt to give an overview on how the employment of different stabilizing coatings can modulate AgNP-induced phytotoxicity with respect to growth, physiology, and gene and protein expression in terrestrial and aquatic plants and freshwater algae.

Surface charge-dependent bioaccumulation dynamics of silver nanoparticles in freshwater algae

Chemosphere ◽  
2020 ◽  
Vol 247 ◽  
pp. 125936 ◽  
Author(s):  
Jilai Zhang ◽  
Qianqian Xiang ◽  
Lin Shen ◽  
Jian Ling ◽  
Chuanhua Zhou ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Surface Charge ◽  
Freshwater Algae

scholarly journals Chlamydomonas reinhardtii displays aversive swimming response to silver nanoparticles

2017 ◽  
Vol 4 (6) ◽  
pp. 1328-1338 ◽  
Author(s):  
Michael R. Mitzel ◽  
Nicholas Lin ◽  
Joann K. Whalen ◽  
Nathalie Tufenkji
Keyword(s):  
Silver Nanoparticles ◽  
Avoidance Response ◽  
Chlamydomonas Reinhardtii ◽  
Microfluidic Device ◽  
Engineered Nanoparticles ◽  
Freshwater Algae

A microfluidic device was used to examine the avoidance response of a freshwater algae to engineered nanoparticles.

Synthesis, performance and growth mechanism of silver nanoparticle coated SERS fiber probe

2019 ◽  
Vol 107 (3) ◽  
pp. 305
Author(s):  
Mengmei Geng ◽  
Yuting Long ◽  
Tongqing Liu ◽  
Zijuan Du ◽  
Hong Li ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Absorption Spectrum ◽  
Reaction Time ◽  
Growth Mechanism ◽  
Fiber Optic ◽  
Fiber Optic Probe ◽  
Visible Absorption ◽  
Fiber Probe ◽  
Surface Enhanced Raman ◽  
Optic Probe

Surface-enhanced Raman Scattering (SERS) fiber probe provides abundant interaction area between light and materials, permits detection within limited space and is especially useful for remote or in situ detection. A silver decorated SERS fiber optic probe was prepared by hydrothermal method. This method manages to accomplish the growth of silver nanoparticles and its adherence on fiber optic tip within one step, simplifying the synthetic procedure. The effects of reaction time on phase composition, surface plasmon resonance property and morphology were investigated by X-ray diffraction analysis (XRD), ultraviolet-visible absorption spectrum (UV-VIS absorption spectrum) and scanning electron microscope (SEM). The results showed that when reaction time is prolonged from 4–8 hours at 180 °C, crystals size and size distribution of silver nanoparticles increase. Furthermore, the morphology, crystal size and distribution density of silver nanoparticles evolve along with reaction time. A growth mechanism based on two factors, equilibrium between nucleation and growth, and the existence of PVP, is hypothesized. The SERS fiber probe can detect rhodamin 6G (R6G) at the concentration of 10−6 M. This SERS fiber probe exhibits promising potential in organic dye and pesticide residue detection.

The Effect of Silver Nanoparticles on Blood Cells in Rats

2012 ◽  
Vol 1 (1) ◽  
Author(s):  
S. Rezaei-Zarchi ◽  
M. Taghavi-Foumani ◽  
S. Razavi Sheshdeh ◽  
M. Negahdary ◽  
G. Rahimi
Keyword(s):  
Silver Nanoparticles ◽  
Blood Cells
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