Recent advancements in the surface modification and functionalization of magnetic nanomaterials

Applied Surface Science Advances, Год журнала: 2024, Номер 21, С. 100608 - 100608

Опубликована: Май 17, 2024

Magnetic nanomaterials (MNMs) with metallic and semiconducting properties are useful in energy conversion, storage, environmental, biomedical, agricultural applications thanks to their large surface area, charge carrier mobility, optical band structure, non-toxic nature, ability recover recycle. However, poor stability, agglomeration, lack of biocompatibility, fast electron-hole recombination, leaching acidic environments restrict bare MNMs for real-time applications. There several approaches employed overcome these issues, such as elemental doping, defect formation, nanocomposites, functionalization. Among them, functionalization is one the promising techniques alter various specific morphology, size, facet, crystalline phase, electron mobility. Functionalized have been explored areas research, including biomedical environmental MRI, drug delivery, catalysis, solar hydrogen production, sensors, water air purification. In this short perspective, advances strategies modification, amino functionalization, polymer biomolecule were consolidated, reviewed discussed detail.

Язык: Английский

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Strategy for Fabricating Degradable Low-Surface-Energy Cross-Linked Networks with Excellent Anti-Fouling Properties

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Янв. 6, 2025

Marine biofouling negatively impacts marine industries and ship navigation. However, current coatings are based on a single antifouling mechanism, which is insufficient to cope with the complex ever-changing environment. Herein, multifunctional were developed using material system containing perfluoropolyether caprolactone chains. First, an acrylic resin side chains was synthesized as liquid-repellent component then degradable cross-linked network constructed by bridging polycaprolactone Surprisingly, not only effectively improved tensile strength but also provided flexibility resin. Thus, coating exhibited satisfactory mechanical stability low roughness (4.06 nm) during dynamic polishing. It worth noting that surface energy (SE) (22.0 mJ·m

Язык: Английский

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Optimization of metal polymer friction pair composition for hydrogen wear reduction through thermal stabilization analysis

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Янв. 25, 2025

Abstract The composition of the metal-polymer friction pair is carefully considered for interacting with water and hydrogen, ensuring metals electrode process potential remains below waters in a neutral medium. Simultaneously, adherence to defined chemical ratios materials crucial. This analysis conducted under conditions thermal stabilization, characterized by minimal temperature gradient across rim thickness within an equivalent field. Using quasi-chemical approximation, paper derives concentration-dependent diffusion coefficient hydrogen (H) iron (Fe) broad spectrum. derivation includes electronic vibrational contributions potential. research establishes correlation between concentration diffusing atoms from metal, such as pulley or drum rim. These findings offer novel insights into optimizing wear behaviour brake couples, contributing advancements design considerations automotive

Язык: Английский

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Efficient production of ultrafine poly-p-phenylene benzobisoxazole nanofibres for high-performance polyurea nanocomposites

Progress in Organic Coatings, Год журнала: 2025, Номер 205, С. 109301 - 109301

Опубликована: Апрель 11, 2025

Язык: Английский

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A Bioinspired Antifouling Coating Based on “Host–Guest Interaction” Strategy: Durable Slipperiness and Tunable Transparency

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 5, 2025

Lubricant-mediated surfaces limit their practical application in transparent antifouling due to the inherent drawbacks of lubricant loss and poor transparency. Liquid-Like Surfaces(LLSs)are expected solve these problems. Herein, inspired by skin structure globefish, some slippery LLSs are prepared with cyclodextrin-eugenol inclusion complexes as poison glands flexible silicone chains liquid-like layer. kill attached organisms slowly secreting environmentally friendly eugenol through glands. Short-term explosive release drug is avoided owing host-guest interactions. In addition, low surface energy, covalently linked spontaneously migrate coating, effectively preventing adhesion fouling improving durability surfaces, achieving both offense defense. exhibit outstanding antifouling, mechanical, adhesive performance. Interestingly, transparency seawater freshwater quite different. This different behavior attributed ion-dipole interactions weakening hydrogen bonding water molecules polymer network, which provides insights into tuning responsiveness polymers. Furthermore, LLSs-coated lenses achieve a long-lasting for 90 days, providing promising approach marine environments.

Язык: Английский

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A Case Study on the Corrosion of an Aging Jack-Up Drilling Rig

Journal of Marine Science and Engineering, Год журнала: 2025, Номер 13(3), С. 495 - 495

Опубликована: Март 2, 2025

Corrosion costs the Oil & Gas Industry billions of pounds annually, primarily due to environmental factors such as high salinity, temperature fluctuations, and humidity in marine environments. Mobile Offshore Drilling Units (MODUs), especially jack-up rigs, are particularly susceptible these dangers. This paper examines impact cold stacking on aging rigs highlights how absence an adequate corrosion control system can accelerate structural deterioration. Our findings show that repair following far exceed associated with maintaining a warm-stacked state. Preload tanks critical areas prone degradation microbiologically influenced (MIC) inadequate preservation practices. Furthermore, although high-strength steels frequently utilized construction their durability, we illustrate that, meticulously devised preventative measures, considerable corrosion, resulting substantial expenses diminished operational lifespans. study significance proactive measures long-term integrity cost-effectiveness offshore drilling units.

Язык: Английский

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Robust Self‐Healing PDMS‐Based Elastomers Featuring Tunable Mechanical Properties Enabled by Dual Non‐Covalent Interactions

Macromolecular Rapid Communications, Год журнала: 2025, Номер unknown

Опубликована: Март 22, 2025

Abstract It is desirable to develop highly efficient self‐healing polydimethylsiloxane (PDMS) elastomers with excellent mechanical properties, which can be solved by introducing dual non‐covalent interactions. However, most of the PDMS reported so far require harsh conditions, while improvement ability often compromises properties. Moreover, hydrogen bonds traditional urea derivatives tend crystallize excessively, adversely affecting stretchability and toughness elastomers. In this work, strong Zn 2+ coordination introduced into a thiourea bond network, unlikely crystallize, resulting in series robust By changing content ions, properties materials strategically tuned from superior (≈6000%) high strength (≈4.2 MPa). addition, also possess favorable ability. The surface scratches completely healed at room temperature for 24 h, efficiency under mild conditions (60 °C, 6 h) generally reached more than 90%. applications PDMS‐BDTI‐Zn on hydrophobic coatings are tentatively explored view remarkable hydrophobicity PDMS.

Язык: Английский

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Environmentally friendly fluorine-free anti-fouling polyurea coatings with excellent abrasion resistance

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2025, Номер unknown, С. 136751 - 136751

Опубликована: Март 1, 2025

Язык: Английский

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Effectiveness of Lignocellulose Nanofibers (LNCFS) for removing nitrite, nitrate, and phosphate from Gamishan wastewater

Aquaculture Reports, Год журнала: 2025, Номер 42, С. 102777 - 102777

Опубликована: Март 29, 2025

Язык: Английский

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Biofouling-Resistant Nanomaterials for Non-Enzymatic Glucose Sensors: A Critical Review

Materials Today Bio, Год журнала: 2025, Номер unknown, С. 101746 - 101746

Опубликована: Апрель 1, 2025

Язык: Английский

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