Measurement of Chlorophyll Loss Due to Phytoremediation of Ag Nanoparticles in the First-Year Laboratory

Winkelmann, Kurt; Bernas, Leonard; Swiger, Brendan; Brown, Shannon

doi:10.1021/acs.jchemed.6b00694

Cited by 5 publications

(2 citation statements)

References 24 publications

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“…In a study conducted by Asghar et al [12], the researchers reported increased chlorophyll content in soya plants grown from seeds stimulated with He-Ne laser light and alternating magnetic fields. As observed by Winkelmann et al [77], silver nanoparticles can interfere with cells' biological functions due to two distinct mechanisms. A nanoparticle may be absorbed by a plant cell and start to release silver cations as products of various redox reactions.…”

Section: Elements Concentrations In Leaves Of Pumpkinmentioning

confidence: 90%

Influence of Silver Nanoparticles, Laser Light and Electromagnetic Stimulation of Seeds on Germination Rate and Photosynthetic Parameters in Pumpkin (Cucurbita pepo L.) Leaves

et al. 2021

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The study aimed to determine the impact of laser light (L), magnetic stimulation (p) and silver nanocolloid (AgNC) on pumpkin seeds on the germination rate and content of photosynthetic pigments as well as the efficiency of photosynthesis and greenness index in the plant’s development stages. Seeds germinated after the use of various combinations of different refining techniques. The best results were observed for the alternating magnetic field, where the germination energy increased significantly by 20% relative to the control. A similar effect was observed in terms of germination capacity which increased by 4%. A decrease in terms of emergence rate was observed in all study groups. Leaves grown from seeds soaked in nanocolloidal silver on platters were characterised by a significantly higher content of chlorophyll a and b by, respectively, 53 and 11%, as well as 79% higher carotenoid content. The leaves of potted plants contained 42 and 43% more chlorophyll a in groups p and AgNC. In addition, 66 and 81% more carotenoids in groups L and p. At the stage of the onset of flowering of pumpkin, an improvement in terms of photosynthetic efficiency and greenness index was observed in all study groups. The highest improvement was recorded for seeds soaked in silver and reached 23% (intensity of photosynthesis) and 11% (greenness index SPAD).

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