ArticleScientific reports2026
HAp@Cell bio-films engineered from local resources involving molecular mechanisms of dye adsorption and antibacterial activity.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- First-principles study of diabetes-associated VOCs detection from breath using nitride nanotubes.RSC advances · 2026Article
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11 authors.
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Abstract
This work describes the eco-friendly synthesis and multifunctional performance of hydroxyapatite/cellulose (HAp@Cell) bio-films prepared from Moroccan natural phosphate and cotton-derived cellulose through a solvent-free, low-temperature (< 100 °C) route. Structural (XRD) and morphological (SEM) analyses confirmed nanocrystalline HAp homogeneously dispersed in a semi-crystalline cellulose matrix, creating a rough and porous network favorable for molecular interactions. The optimized film (PC5) exhibited outstanding adsorption toward methylene blue (qₑ,max ≈ 85 mg g⁻¹) and natural indigo (~ 95% removal). Kinetic data fitted the pseudo-second-order model, while the Freundlich isotherm best described multilayer adsorption, indicating a heterogeneous surface with high affinity for cationic dyes. At the molecular scale, non-covalent interactions such as hydrogen bonding, electrostatic attraction, and π–π coupling between dye molecules and surface hydroxyl/phosphate groups dominate the adsorption process. The same surface chemistry governs the antibacterial mechanism, where the controlled release of Ca²⁺ and PO₄³⁻ ions combined with electrostatic contact destabilizes bacterial membranes, producing inhibition zones of 25 mm for S. aureus and 20 mm for E. coli. The films maintain over 85% adsorption efficiency after five reuse cycles, demonstrating high stability and regeneration potential. These results position the HAp@Cell composite as a sustainable, dual-function material for wastewater decolorization and antimicrobial protection within Morocco’s eco-circular strategy.
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