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Colloidal Silver Nanoparticles Enhance Bulb Yield and Alleviate the Adverse Effect of Saline Stress on Lily Plants

Byczyńska Andżelika, Zawadzińska Agnieszka, Salachna Piotr

Journal of Ecological Engineering

2023

Vol. 24, nr 6

338--347

Salinity occurring in intensively used agricultural, industrialized, and urbanized areas is one of the main factors in soil degradation. The effect of silver nanoparticles (AgNPs) on plant growth under environmental stresses is still not fully understood. Two experiments were conducted on the response of Asiatic lilies to treatment with colloidal AgNPs. In Experiment I, the study aimed to evaluate the effect of treating 'Osasco' lily bulbs with colloidal AgNPs (0, 25, 50, 100, and 150 ppm) on growth, flowering, and bulb yield, as well as the production of bulblets. Compared with the control, the applied colloidal AgNPs at all concentrations caused an acceleration of flowering and an increase in bulb diameter and the fresh weight of the aboveground part of the plants and bulbs. In addition, treatment with colloidal AgNPs at concentrations of 100 and 150 ppm increased bulblets’ number and fresh weight. In Experiment II, the effects of colloidal AgNPs (100 ppm) and NaCl stress (600 mM) on the growth parameters, assimilation pigment content, and chemical composition of 'Bright Pixi' lily leaves were evaluated. As a result of the application of colloidal AgNPs, plants flowered faster and had increased height, petal width, fresh bulb weight, bulb diameter, and several scales in the bulb. Under NaCl stress, plants had reduced fresh weight of the aboveground part and bulb, bulb diameter, number of scales in a bulb, and contents of assimilation pigments, N, K, Ca, Cu, Mn and Zn. Colloidal AgNPs offset the adverse effects of salinity on bulb yield by increasing fresh bulb, bulb diameter, and the number of scales in lily bulbs. In conclusion, using colloidal AgNPs can contribute to developing new methods of bulbous plants production and an effective strategy to protect plants from ever-increasing land salinization.

Modification of the Titanium Implants Surface by Silanes and Colloidal Silver

Zboromirska-Wnukiewicz B., Wnukiewicz J., Kogut K., Kasprzyk K., Wnukiewicz W.

Archives of Metallurgy and Materials

2009

Vol. 54, iss. 4

1005-1011

Surface modification of an implants by colloidal silver and three kinds of silanes such as Z-6020, A - 187, TRIAMO were carried out. Contact angles of the implants covered colloidal silver with different properties were examined. The change of a hydrophobic character of the surface implants was defined. DSA 100 System which allow to contact angle measure of a solid bodies in wide bounds from 4° to 122° with accuracy of measurement to 0,1° were applied. The roughness of modified implants surface was examined by profilometer WYKO NT 9300 with high optical resolution.

W pracy przedstawiono modyfikację powierzchni implantów srebrem koloidalnym oraz trzema rodzajami silanów: Z -6020, A - 187 oraz TRIAMO. Zmierzono kąt zwilżania na implantach pokrytych srebrem koloidalnym o różnych właściwościach. Określono charakter zmian hydrofobowości powierzchni implantów. Do pomiarów wykorzystano system DSA 100, który pozwala na pomiar kąta zwilżania płynów na powierzchniach ciał stałych w szerokich granicach od 40° do 120° z dokładnością pomiaru do 0,10°. Chropowatość powierzchni modyfikowanych implantów zmierzono przy pomocy profilometru optycznego Wyko NT 9300 o dużej rozdzielczości.