Structural, Mineral and Elemental Composition Features of Iron-Rich Saponite Clay from Tashkiv Deposit (Ukraine)

Sokol, Halyna; Sprynskyy, Myroslav; Ganzyuk, A.Y.; Raks, Viktoria; Buszewski, Bogusław

doi:10.3390/colloids3010010

Cited by 14 publications

(5 citation statements)

References 42 publications

(65 reference statements)

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“…The intensive absorption band in the area of 860-1070 cm À1 corresponds to the stretching of O-Si-O comprising a tetrahedral sheet (Madejova and Komadel, 2001). Absorption at 3687 cm À1 corresponds to the bonds Al-OH-Mg (Sokol et al, 2019). ATR spectrum of pure TMODAB [Figure 1(b)] reveals typical asymmetric and symmetric CH 2 -vibration around 2916 and 2846 cm À1 , respectively, (Madejov a, 2003).…”

Section: Resultsmentioning

confidence: 99%

Novel antimicrobial materials designed for the 3D printing of medical devices used during the COVID-19 crisis

Furka

Dadi

Palacka

et al. 2021

RPJ

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Purpose This study aims to describe the preparation of antimicrobial material usable in 3D printing of medical devices. Despite the wealth of technological progress at the time of the crisis caused by SARS-CoV-2 virus: Virus that causes current Pandemic situation (COVID-19), the global population had long been exposed beforehand to an acute absence of essential medical devices. As a response, a new type of composite materials intended for rapid prototyping, based on layered silicate saponite (Sap), antimicrobial dye phloxine B (PhB) and thermoplastics, has been recently developed. Design/methodology/approach Sap was modified with a cationic surfactant and subsequently functionalized with PhB. The hybrid material in powder form was then grounded with polyethylene terephthalate-glycol (PETG) or polylactic acid (PLA) in a precisely defined weight ratio and extruded into printing filaments. The stability and level of cytotoxicity of these materials in various physiological environments simulating the human body have been studied. The applicability of these materials in bacteria and a yeast-infected environment was evaluated. Findings Ideal content of the hybrid material, with respect to thermoplastic, was 15 weight %. Optimal printing temperature and speed, with respect to maintaining antimicrobial activity of the prepared materials, were T = 215°C at 50 mm/s for PETG/SapPhB and T = 230°C at 40 mm/s for PLA/SapPhB. 3 D-printed air filters made of these materials could keep inner air flow at 63.5% and 76.8% of the original value for the PLA/SapPhB and PETG/SapPhB, respectively, whereas the same components made without PhB had a 100% reduction of airflow. Practical implications The designed materials can be used for rapid prototyping of medical devices. Originality/value The new materials have been immediately used in the construction of an emergency lung ventilator, Q-vent, which has been used in different countries during the COVID-19 crisis.

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Section: Resultsmentioning

confidence: 99%

Novel antimicrobial materials designed for the 3D printing of medical devices used during the COVID-19 crisis

Furka

Dadi

Palacka

et al. 2021

RPJ

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“…In addition to its nutrient-enhancing abilities, saponite also improves soil structure by promoting water retention [38]. Its unique porous structure, consisting of both micropores and mesopores, facilitates efficient water retention and absorption [39]. By increasing the surface area available for water absorption and storage, The introduction of saponite into the soil resulted in a notable increase in pH levels, rising from a baseline of 7.2 to 8.5.…”

Section: Soil Ph and Plant Biomassmentioning

confidence: 99%

Unlocking the Saponite Potential in Aided Phytostabilisation of Multi-Metal-Contaminated Soils

Klik,

Brtnicky,

Jaskulska

et al. 2023

Minerals

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Human activities have significantly impacted the environment, resulting in a need to restore degraded areas through various remediation techniques. This study aimed to evaluate the effectiveness of saponite in the aided phytostabilisation technique for heavy-metal-contaminated soil. The research was conducted on soil from a post-industrial site characterised by high metal content (Cu, Ni, Cd, Pb, Zn, and Cr) surpassing the established regulatory limits. Saponite was added to the contaminated soil at a ratio of 3% (w/w). The experiment was performed using Lolium perenne L. and Festuca rubra L. due to their adaptability to harsh soil conditions and rapid growth. The results demonstrated that saponite application significantly increased soil pH, which is beneficial for phytostabilisation of heavy metals. Saponite has been found to selectively enhance Ni accumulation in roots while not affecting Pb accumulation in above-ground parts, implying that saponite can effectively regulate heavy metal accumulation in plant biomass. Furthermore, saponite has been observed to significantly decrease soil Cd, Zn, and Cr levels with no impact on Cu, Ni, and Pb levels. Overall, saponite shows promise as an effective and scalable solution for large-scale phytostabilisation projects, contributing to the restoration of degraded soils and the protection of environmental and human health.

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“…Raw saponite clay is characterized by a high content of iron (19.3%) and titanium (1.1%). Iron is present as hematite particles or as a cation in the interlayer space [ 32 ].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Saponite Clay on Ruminal Fermentation Parameters during In Vitro Studies

Pikhtirova,

Pecka-Kiełb,

Króliczewska

et al. 2024

Animals

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Reducing the emission of global warming gases currently remains one of the strategic tasks. Therefore, the objective of our work was to determine the effect of saponite clay on fermentation in the rumen of cows. The pH, total gas production, CH4, and volatile fatty acid (VFA) production in ruminal fluid was determined in vitro. Saponite clay from the Tashkiv deposit (Ukraine) has a high content of silicon, iron, aluminum, and magnesium. The addition of 0.15 and 0.25 g of saponite clay to the incubated mixture did not change the pH but reduced the total production (19% and 31%, respectively) and CH4 (24% and 46%, respectively) in the ruminal fluid compared to the control group and had no significant effect on the total VFA levels, but propionic acid increased by 15% and 21% and butyric acid decreased by 39% and 32%, respectively. We observed a decrease in the fermentation rates, with a simultaneous increase in the P:B ratio and an increase in the fermentation efficiency (FE) in the groups fermented with saponite clay, probably a consequence of the high efficiency in the breakdown of starch in the rumen. Therefore, further in vivo studies to determine the effective dose and effect of saponite clay on cow productivity and the reduction of gas emissions are promising and important.

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Structural, Mineral and Elemental Composition Features of Iron-Rich Saponite Clay from Tashkiv Deposit (Ukraine)

Cited by 14 publications

References 42 publications

Novel antimicrobial materials designed for the 3D printing of medical devices used during the COVID-19 crisis

Novel antimicrobial materials designed for the 3D printing of medical devices used during the COVID-19 crisis

Unlocking the Saponite Potential in Aided Phytostabilisation of Multi-Metal-Contaminated Soils

The Effect of Saponite Clay on Ruminal Fermentation Parameters during In Vitro Studies

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