Assessing phytotoxicity and tolerance levels of ZnO nanoparticles on Raphanus sativus: implications for widespread adoptions

• Pathirannahalage Sahan Samuditha,
• Nadeesh Madusanka Adassooriya and
• Nazeera Salim

Beilstein J. Nanotechnol. 2024, 15, 115–125, doi:10.3762/bjnano.15.11

• -tolerant species. Keywords: phytotoxicity; Raphanus sativus; ZnO nanoparticles; Zn tolerance; Zn toxicity; Introduction Despite zinc (Zn) being recognized as an important micronutrient for all living organisms, exceeding the permissible levels of Zn concentration due to anthropogenic sources can be

• synthesized ZnO NPs were characterized via several techniques such as powder X-ray diffraction (PXRD), Fourier-transform infrared (FTIR) spectroscopy, solid-UV–vis spectroscopy, dynamic light scattering (DLS), and scanning electron microscopy (SEM). Then the potential phytotoxicity of the synthesized ZnO NPs

• (Figure 1c) shows significant absorption peaks at 545, 718, 902, 2028, and 2159 cm−1. The UV–vis spectrum of synthesized ZnO-NPs displays a broad band at 362 nm (Figure 1d). The SEM images (Figure 1e) confirmed that ZnO NPs have spherical morphology with an average diameter of 70 nm. Phytotoxicity of ZnO

Carboxylic acids and light interact to affect nanoceria stability and dissolution in acidic aqueous environments

• Matthew L. Hancock,
• Eric A. Grulke and
• Robert A. Yokel

Beilstein J. Nanotechnol. 2023, 14, 762–780, doi:10.3762/bjnano.14.63

• , where it is known to dissolve and transform in the presence of chelating agents at low pH [15]. In cucumber plants, there is clear evidence of ceria uptake and transport throughout the plant. A fraction of the ceria formed cerium carboxyl complexes. No phytotoxicity was reported to the plant itself [16

Plant growth regulation by seed coating with films of alginate and auxin-intercalated layered double hydroxides

• Vander A. de Castro,
• Valber G. O. Duarte,
• Danúbia A. C. Nobre,
• Geraldo H. Silva,
• Vera R. L. Constantino,
• Frederico G. Pinto,
• Willian R. Macedo and
• Jairo Tronto

Beilstein J. Nanotechnol. 2020, 11, 1082–1091, doi:10.3762/bjnano.11.93

• for the control (Figure 6), evidencing a superior germinative behavior. The other treatments yielded GSI values in the following order: M3 > M4 > M2 > M1. The seeds covered with the M4 film had an intermediate GSI value (approximately 5) demonstrating that the film did not show phytotoxicity at the