Preparation of non-toxic green slippery liquid infused surfaces based on electrospun fiber with anti-algae and anti-bacterial properties

Polymer Bulletin, Год журнала: 2025, Номер unknown

Опубликована: Фев. 19, 2025

Abstract Microbial attachment is a problem of vital importance and economic significance, particularly in marine environments. Slippery Liquid Infused Surfaces (SLIPS) have attracted considerable interest as solution to this challenge. In the present study, we hypothesized that Saint John's Wort Oil (SJWO) could provide an eco-friendly alternative synthetic oils, combating microbial with non-toxic chemicals. We developed hydrophobic electrospun porous cellulose acetate fiber layer, coated silica nanoparticles (SiO 2 NPs), infused SJWO. The optimization process involved measuring sliding velocity, number SiO NP layers, amount lubricant, infusion time. optimal configuration demonstrated velocity 0.31 cm/s on 10° slope. Antibacterial tests revealed SLIPS reduced bacterial Pseudomonas aeruginosa from 1.67 ± 0.03 × 10 6 CFU/mL glass substrates 2.85 0.07 5 for SLIPS. Similarly, anti-algae performance against Chlorella sp. showed significant reduction optical density 0.92 0.01 0.19 SLIPS, chlorophyll content was 7.24 µg/mL 3.70 0.77 µg/mL. findings indicate SJWO-infused robust effective method reducing attachment.

Язык: Английский

Nature-Inspired Superwetting Membranes for Emulsified Oily Water Separation

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Март 20, 2025

Nature-inspired superhydrophilic and underwater superoleophobic membranes have garnered significant attention due to their promising potential for separating emulsified oily water addressing security issues. The exceptional wettability imparts spontaneous permeability oil repellency membranes, accelerating filtration, enhancing isolation, reducing membrane fouling during the process, thereby achieving fast efficient oil–water separation. Over past decade, a series of groundbreaking studies on nature-inspired superwetting propelled separation technology into transformative phase development. In subsequent phase, people still face challenge evolving with dual capabilities purifying recovering from particularly surfactant-stabilized emulsions achieve sustainable resource utilization zero liquid discharge. this Perspective, we briefly review recent advances in emphasizing advantages, bionic principles, design concepts, fabrication methods, performance various types water. Additionally, present membrane-based strategies simultaneous purification recovery Finally, identify current bottlenecks propose future direction area, focusing development next-generation comprehensive discharge true at an industrial scale.

Язык: Английский

Next-generation stimuli-responsive smart membranes: Developments in oil/water separation

Advances in Colloid and Interface Science, Год журнала: 2025, Номер unknown, С. 103487 - 103487

Опубликована: Март 1, 2025

Язык: Английский