Results 11 to 20 of about 2,521,534 (183)

How is silicic acid transported in plants? [PDF]

open access: yes, 2020
Plants accumulate silicon in their tissues as amorphous silica. The form of silicon taken up by plants is silicic acid, a neutral molecule that passes through membrane channels with water.
Guerriero, Gea   +2 more
core   +3 more sources

Selective removal of silicic acid by a gallic-acid modified resin

open access: yesJournal of Water Reuse and Desalination, 2019
To remove silicic acid from aqueous solutions, a novel gallic acid-type resin (GA-type resin) was prepared by a grafting method. The effects of the adsorption capacity, pH and presence of NaCl, NaNO3, Na2SO4, and NaCO3 salts on the silicic acid removal ...
Shuqin Bai, Jue Han, Cong Du, Wei Ding
doaj   +1 more source

Biogenic silica production and diatom dynamics in the Svalbard region during spring [PDF]

open access: yesBiogeosciences, 2018
Diatoms are generally the dominant contributors to the Arctic Ocean spring bloom, which is a key event in regional food webs in terms of capacity for secondary production and organic matter export.
J. W. Krause   +11 more
doaj   +1 more source

Foliar amendment of silicic acid on population of yellow mite, Oligonychus sacchari (Acari: Tetranychidae) and its predatory beetle, Stethorus gilvifrons (Col.: Coccinellidae) on two sugarcane commercial varieties 

open access: yesPersian Journal of Acarology, 2020
Sugarcane (interspecific hybrids of Saccharum) is a strategically important cash crop that has an economic and social impact in many countries. Sugarcane mite, Oligonychus sacchari is one of the most detrimental arthropod pests associated with sugarcane
Amin Nikpay, Henk-Maarten Laane
doaj   +1 more source

Synthesis of mesoporous silica from geothermal water

open access: yesScientific Reports, 2021
Mesoporous silica was successfully synthesized for the first time using geothermal water from the Onuma Geothermal Power Plant, Akita Prefecture, Japan. Cetyltrimethylammonium bromide (CTAB) was used as an organic template for the synthesis.
Yujiro Watanabe   +6 more
doaj   +1 more source

Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes

open access: yesElementa: Science of the Anthropocene, 2017
Antarctic pack ice is inhabited by a diverse and active microbial community reliant on nutrients for growth. Seeking patterns and overlooked processes, we performed a large-scale compilation of macro-nutrient data (hereafter termed nutrients) in ...
François Fripiat   +22 more
doaj   +1 more source

Dependence of the fractality of the silica gel on the method of sol emulsification

open access: yesЛитьë и металлургия, 2021
The article presents experimental data confirming the effect of capillary active substance (surfactants) and sedimentation stability on the final structure of the gel with stabilized silicic acid.
S. S. Tkachenko   +2 more
doaj   +1 more source

Preparation and Characterization of Colloidal Silica in Alkaline and Constant Range of pH [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2008
In this study, alkaline colloidal silica was prepared by titration of an alkaline solution such as sodium silicate with silicic acid in constant range of pH  .This constant range of pH was achieved by using concentrated soduim silicate solutions as pH ...
Asghar Karami   +3 more
doaj  

The effect of Silicon on the organically grown iceberg lettuce growth and quality

open access: yesAgraarteadus, 2017
Si helps plants to mitigate with abiotic and biotic stresses because of Si-treated plants become stronger, sturdier and naturally more tolerant. The purpose of the investigations was to look the effect of Silicon on the iceberg lettuce growth and quality.
Margit Olle
doaj   +1 more source

Direct evidence of the molecular basis for biological silicon transport

open access: yesNature Communications, 2016
Diatoms sheath themselves in a self-made casing of silica, which requires the function of silicic acid transporters. Here, the authors identify versions of these transporters that are experimentally tractable, and develop a fluorescence method to study ...
Michael J. Knight   +4 more
doaj   +1 more source

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