Modification of Cotton with Chitosan: Deposition of Copper(II) Sulfate by Complexation Copper Ions DOI Open Access
Małgorzata Świerczyńska,

Zdzisława Mrozińska,

Michał Juszczak

et al.

Processes, Journal Year: 2024, Volume and Issue: 12(12), P. 2772 - 2772

Published: Dec. 5, 2024

This study introduces a novel approach for enhancing the functional properties of cotton fibers through complexation copper sulfate, and subsequent combination with chitosan (COT-CuSO4-CTS). Our preliminary investigations focused on development composites as candidate materials coatings antimicrobial properties. The were thoroughly characterized via scanning electron microscopy (SEM) optical microscopy, providing insights into their structural features composition. findings show that modified exhibit potent activity. Specifically, COT-CuSO4 COT-CuSO4-CTS samples demonstrated zones inhibition against both Gram-positive Staphylococcus aureus Gram-negative Escherichia coli, confirming ability to reduce microbial growth significantly. incorporation layer significantly enhanced Ultraviolet Protection Factor (UPF) fabric from 3.37 over 50, indicating exceptional UV shielding capabilities, while copper(II) oxide treatment provided moderate UPF value 14.56. Blood compatibility studies further revealed fabrics influence coagulation parameters, marked prolongation in activated partial thromboplastin time (aPTT) prothrombin (PT) compared untreated cotton. anticoagulant effect is primarily linked presence copper, although addition modulates this response, slightly reducing clotting times alone. Cytotoxicity genotoxicity assessments using Peripheral Mononuclear (PBM) cells indicated was non-toxic non-genotoxic. However, displayed reduction cell viability induced DNA damage, highlighting potential cytotoxic genotoxic effects. Notably, showed lower cytotoxicity than COT-CuSO4-CTS, suggesting reduces overall composite. Furthermore, plasmid relaxation assays interact DNA, exhibiting stronger interaction consistent PBM cells.

Language: Английский

Optimal cultivation concentration of duckweed for pollutant removal from biogas slurry DOI Creative Commons
Jiaquan Li,

Gao Ya,

Yaoru Xie

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 12, 2025

Duckweed is an important plant for wastewater remediation and a promising alternative protein source animal feed. This study aims to evaluate the biomass, accumulation, purification capacity of duckweed under controlled cultivation conditions. Using pig farm biogas slurry as nutrient source, this analyzes ability at different concentrations (2%, 4%, 6%, 8%, 10%) on chemical oxygen demand (COD), total nitrogen (TN), phosphorus (TP), ammonia (NH3-N) in slurry. The also describes changes weight, chlorophyll content, accumulation. Our results showed that 4% concentration was optimum condition duckweed, which corresponded NH3-N 29.56 mg/L. dry matter production these conditions 1.78 g/(d·m2), relative growth rate (RGR) 0.29 g/(g·d), doubling time 2.42 days, content 36.25% by weight. In terms pollutant removal, efficiently removed 54.69% COD, 86.89% TN, 97.25% NH3-N, 85.22% TP. provide reference operation system, crucial design pilot-scale large-scale systems moving forward.

Language: Английский

Citations

0
In situ electrochemical generated metal hydroxides as coagulants for optimization of sulfamethoxazole removal DOI Creative Commons

Omid Paknia,

Mohammad Hassan Moshafi,

Faeze Ashkar

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 15, 2025

In this study, the antibiotic sulfamethoxazole (SMX) removal was investigated and optimized using electrocoagulation process (ECP). The effective parameters including initial SMX concentration, current density, solution pH, reaction time, type concentration of supporting electrolytes, types electrodes (Fe/Fe, Al/Al, Cu/Cu, Zn/Zn), on treatment were investigated. Response surface methodology (RSM) applied for designing study based central composite design (CCD). maximum efficiency energy consumption 99.9% 0.743 kWh m-3, respectively, found in optimum condition 20 mg L-1, density 15.0 mA cm-2, pH 9.0, time 17.0 min, mM NaCl as electrolyte Fe/Fe electrode. statistical data p-value < 0.0001, F-value 311.2, high determination coefficient (R2) 0.9878, adjusted R2 0.9847, predicted 0.9753 revealed satisfactory correlation between values experimental findings developed model. ECP involves a combination multiple mechanisms such coagulation, flocculation, flotation, sedimentation, adsorption that act synergistically to remove contaminants by applying electrical current.

Language: Английский

Citations

0
Preparation and Biochemical Activity of Copper-Coated Cellulose Nonwoven Fabric via Magnetron Sputtering and Alginate-Calcium Ion Complexation DOI Creative Commons
Małgorzata Świerczyńska,

Zdzisława Mrozińska,

Michał Juszczak

et al.

Marine Drugs, Journal Year: 2024, Volume and Issue: 22(10), P. 436 - 436

Published: Sept. 26, 2024

Alginate-based materials have gained significant recognition in the medical industry due to their favorable biochemical properties. As a continuation of our previous studies, we introduced new composite consisting cellulose nonwoven fabric charged with metallic copper core (CNW-Cu0) covered calcium alginate (ALG−Ca2+) layer. The preparation process for these involved three main steps: coating via magnetron sputtering (CNW → CNW-Cu0), subsequent deposition sodium (CNW-Cu0 CNW-Cu0/ALG−Na+), followed by cross-linking chains ions (CNW-Cu0/ALG−Na+ CNW-Cu0/ALG−Ca2+). primary objective work was supply composites such biological attributes as antibacterial and hemostatic activity. Namely, equipping (copper action on representative Gram-positive Gram-negative bacteria fungal strains) induction blood plasma clotting processes (activated partial thromboplastin time (aPTT) prothrombin (PT)). We determined effect CNW-Cu0/ALG−Ca2+ viability Peripheral mononuclear (PBM) cells. Moreover, studied interactions DNA using relaxation plasmid assay. However, results showed CNW-Cu0/ALG−Ca2+’s cytotoxic properties against PBM cells time-dependent manner. Furthermore, exhibited potential interact directly DNA. demonstrated that synthesized show promising wound dressing applications.

Language: Английский

Citations

2
Poly(Lactide) Nonwoven Fabric with Iron Coating and Its Biological Properties DOI Open Access

Zdzisława Mrozińska,

Małgorzata Świerczyńska, Michał Juszczak

et al.

Coatings, Journal Year: 2024, Volume and Issue: 14(8), P. 1050 - 1050

Published: Aug. 16, 2024

The study investigated the biological properties of a composite material composed poly(lactide) (PLA) and iron (Fe) produced by sputtering onto melt-blown nonwoven fabrics. research aimed to thoroughly understand structure these materials their potential applications in biomedicine. We conducted comprehensive chemical structural analyses using techniques such as microscopic analysis, flame atomic absorption spectrometry (FAAS), Brunauer–Emmett–Teller (BET) surface area analysis precisely determine PLA-Fe materials. Additionally, we evaluated impact on blood coagulation processes measuring activated partial thromboplastin time (aPTT) prothrombin (PT). also performed human peripheral mononuclear cells (PBM cells) including cell viability DNA damage. Our results clearly demonstrate that do not significantly influence mechanisms, they only slightly prolong aPTT have no effect PT. This suggests biomedical applications. indicate absence cyto- genotoxic against normal cells. In conclusion, findings suggest novel iron-sputtered fabrics are promising tools field biomedicine, offering potentially innovative therapeutic solutions for treatment wounds injuries.

Language: Английский

Citations

2
Modification of Cotton with Chitosan: Deposition of Copper(II) Sulfate by Complexation Copper Ions DOI Open Access
Małgorzata Świerczyńska,

Zdzisława Mrozińska,

Michał Juszczak

et al.

Processes, Journal Year: 2024, Volume and Issue: 12(12), P. 2772 - 2772

Published: Dec. 5, 2024

This study introduces a novel approach for enhancing the functional properties of cotton fibers through complexation copper sulfate, and subsequent combination with chitosan (COT-CuSO4-CTS). Our preliminary investigations focused on development composites as candidate materials coatings antimicrobial properties. The were thoroughly characterized via scanning electron microscopy (SEM) optical microscopy, providing insights into their structural features composition. findings show that modified exhibit potent activity. Specifically, COT-CuSO4 COT-CuSO4-CTS samples demonstrated zones inhibition against both Gram-positive Staphylococcus aureus Gram-negative Escherichia coli, confirming ability to reduce microbial growth significantly. incorporation layer significantly enhanced Ultraviolet Protection Factor (UPF) fabric from 3.37 over 50, indicating exceptional UV shielding capabilities, while copper(II) oxide treatment provided moderate UPF value 14.56. Blood compatibility studies further revealed fabrics influence coagulation parameters, marked prolongation in activated partial thromboplastin time (aPTT) prothrombin (PT) compared untreated cotton. anticoagulant effect is primarily linked presence copper, although addition modulates this response, slightly reducing clotting times alone. Cytotoxicity genotoxicity assessments using Peripheral Mononuclear (PBM) cells indicated was non-toxic non-genotoxic. However, displayed reduction cell viability induced DNA damage, highlighting potential cytotoxic genotoxic effects. Notably, showed lower cytotoxicity than COT-CuSO4-CTS, suggesting reduces overall composite. Furthermore, plasmid relaxation assays interact DNA, exhibiting stronger interaction consistent PBM cells.

Language: Английский

Citations

0