Abiotic weathering of plastic: Experimental contributions towards understanding the formation of microplastics and other plastic related particulate pollutants

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 917, P. 170533 - 170533

Published: Feb. 2, 2024

The increasing use of plastic (synthetic polymers) results in the release uncontrollable amounts synthetic materials into environment through waste, infrastructure, and essential goods. As undergo weathering, a complex process unfolds, leading to formation pollutants, notably microplastics. This study employs multiple instrumental methods explore intricate abiotic degradation five most commonly used polymers environmentally relevant conditions. An extensive set analytical techniques, along with chemometric analysis Raman spectroscopy, was characterize evaluate nature extent caused by artificial weathering under temperature, humidity, solar-like irradiation cycles. Investigation focuses on link between generation micro- nanoplastics, accompanied molecular surface adhesion changes, additives such as metals metal oxides. Research reveals that microplastics may exhibit varied physical properties due incorporation significant quantities high-density from parent plastic, which might influence extraction transportation models' accuracy. At microscopic scales, non-homogeneous pathways decomposes during were observed. additive–polymer combinations play pivotal role monitoring approaches for microplastics, presenting unique challenges assessing environmental impact different types. These findings offer insight microplastics' generation, previously overlooked toxicity health assessment studies. pollution continues escalate, understanding these processes is crucial microplastic development adopting effective preventative measures.

Language: Английский

---

Green synthesis-inspired antibacterial, antioxidant and adhesive hydrogels with ultra-fast gelation and hemostasis for promoting infected skin wound healing

Acta Biomaterialia, Journal Year: 2024, Volume and Issue: 184, P. 156 - 170

Published: June 17, 2024

Language: Английский

---

Intrasporangium zincisolvens sp. nov., A Novel Actinobacterium Isolated from Rhizosphere Soil

Current Microbiology, Journal Year: 2025, Volume and Issue: 82(2)

Published: Jan. 16, 2025

Language: Английский

---

Combined Effect of Nanoparticles of Silver and Silica to HeLa Cells: Synergistic Internalization and Toxicity

Environmental Toxicology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

ABSTRACT The wide range of applications and the enormous production nanomaterials have raised possibility that humans may simultaneously contact with various through multiple routes. Although numerous toxicity studies been conducted on nanomaterials, knowledge combined remains limited. Herein, toxic effects two types most widely used silver silica, were studied HeLa cells. In addition, considering there possible interplay between nanoparticles different sizes, different‐sized silica (SNPs) used. results indicate compared individual exposure, exposure to 35 nm (Ag35) 40 or 120 SNPs (SNP40 SNP120) at non‐toxic concentrations causes more severe cytotoxicity, manifested by ROS overgeneration, decreased mitochondrial membrane potential ATP level, increased apoptosis/necrosis. internalized Ag35 its dissolved Ag ions are delivered into cells adsorbing identified as primary contributors toxicity. cytotoxicity mixed SNP40 is comparable SNP120, noticeable differences in their intracellular contents subcellular locations due size effects. This study provides in‐depth insights inorganic highlights importance effect nanotoxicity assessment.

Language: Английский

---

Stimuli-responsive nanoparticles: a novel approach for melanoma treatment

Journal of Nanoparticle Research, Journal Year: 2025, Volume and Issue: 27(2)

Published: Jan. 30, 2025

Language: Английский

---

Sustainable Industrial Approaches: Utilizing Organic Acid for Purity Enhancement in Green Silica Production

Published: Jan. 31, 2025

Language: Английский

---

Advances in silica nanoparticles for agricultural applications and biosynthesis

Advanced Biotechnology, Journal Year: 2025, Volume and Issue: 3(2)

Published: April 28, 2025

Abstract Nanotechnology has emerged as a revolutionary force in modern agriculture, opening new avenues for crop enhancement and sustainable farming practices. This review systematically evaluates the roles of silica nanoparticles (SiO 2 NPs) agricultural applications, with particular emphasis on their biosynthesis pathways functional mechanisms. SiO NPs have demonstrated considerable potential to enhance resilience against both biotic (pathogens, pests) abiotic (heavy metals, salinity, drought) stresses through phytohormonal regulation, defense gene activation, metabolic modulation. As nanocarriers, these particles pesticide fertilizer delivery accuracy, reduce environmental contamination, promote plant growth. Biosynthesis methods range from conventional physical–chemical techniques eco-friendly green approaches, including utilization biological cells/extracts, natural biomaterials, peptide templates. Although synthesis offers sustainability advantages, adoption faces critical challenges, such insufficient understanding long-term persistence ecotoxicological impacts, high production costs related synthesis, incomplete regulatory frameworks. Addressing challenges is essential enable broader use agriculture.

Language: Английский

---

Superwettable Nanomaterials: Fabrication, Application, and Environmental Impact

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

The increasing global concerns over energy consumption, environmental pollution, and sustainable development have sparked intensive research interest in advanced surface engineering solutions. This perspective critically reviews the of superwettable surfaces as promising candidates for addressing these challenges. We analyze three key architectures that enable different levels liquid repellency: micro/nano hierarchical structures superhydrophobicity, re-entrant features superoleophobicity, doubly designs superomniphobicity. Recent developments demonstrated significant progress creating more environmentally conscious surfaces, including fluorine-free superhydrophobic textiles reduce water consumption maintenance, energy-efficient smart windows with switchable wettability building temperature regulation, marine protective coatings minimize chemical pollution. These advances contribute to sustainability through multiple pathways: reduced resource improved efficiency, decreased However, challenges remain achieving long-term durability, cost-effective fabrication, comprehensive understanding impacts. provides insight into current state field while highlighting critical balance between performance optimization considerations next-generation materials.

Language: Английский

---

Study of Organic Carbon-Containing Additives to Water Used in Fire Fighting, in Terms of Their Environmental Friendliness

Fire Technology, Journal Year: 2024, Volume and Issue: 60(5), P. 3739 - 3765

Published: July 15, 2024

Language: Английский

---

Silica nanoparticles induce ferroptosis of HUVECs by triggering NCOA4-mediated ferritinophagy

Ecotoxicology and Environmental Safety, Journal Year: 2023, Volume and Issue: 270, P. 115889 - 115889

Published: Dec. 26, 2023

Silica nanoparticles (SiNPs) have been widely used in electronics, chemistry, and biomedicine. Human exposure to SiNPs possible health effects attracted much attention. The potential cardiovascular toxicity of their related mechanisms are still unclear. Therefore, this study, we investigated the toxic on human umbilical vein endothelial cells (HUVECs). We found that could induce HUVECs ferroptosis. results showed level intracellular divalent iron lipid peroxidation increased, mitochondrial cristae decreased. In addition, pretreatment chelator deferoxamine mesylate (DFO) alleviate ferroptosis cells. Interestingly, 3-methyladenine (3-MA), an autophagy/PI3K inhibitor partially inhibit autophagy reduce ferroptosis, which indicated played important role cell Additionally, after knocking down nuclear receptor coactivator 4 (NCOA4), Ferritin Heavy Chain 1 (FTH1) expression was up-regulated, levels decreased, suggested NCOA4 mediated induced by SiNPs. conclusion, study shows can there is NCOA4-mediated ferritinophagy resultant may play role. This provides a new theoretical strategy for treatment prevention diseases future.

Language: Английский

---