Bio-originated mesosilicate SBA-15: synthesis, characterization, and application for heavy metal removal

npj Clean Water, Год журнала: 2024, Номер 7(1)

Опубликована: Июнь 15, 2024

Abstract In the path of walking on road sustainable and eco-friendly production methods for manufacturing nanomaterials utilizing them in environmental applications, this article deals with prosperous synthesis a biogenic cyclam-functionalized homologous SBA-15 (BCFH-SBA-15). For purpose, agricultural waste extensively consumed sorghum was used as rich source silica preparation BCFH-SBA-15 bimodal micro-mesoporous architecture substantial surface area 325 m 2 g –1 through simple one-pot environmentally friendly approach. The material structurally characterized use different instrumental analyses such XRD, FTIR, FESEM, TEM, nitrogen adsorption/desorption isotherms. proved to be highly efficient adsorbing Ni(II) aqueous solutions, confirmed by most reliable classical models utilized determining isotherm, thermodynamic, kinetic adsorption parameters. Langmuir isotherm model provided accurate representation experimental results, it calculate maximum capacity under optimal conditions (pH = 6.0, adsorbent dose 3.00 mg, contact time 20 min). at four temperatures 298, 303, 308, 313 K estimated 243.36, 253.87, 260.95, 266.28 mg , respectively; surpassing previously reported adsorbents adsorption. thermodynamic data indicated strong chemisorption ( $${\triangle H}_{{\rm{ads}}.}^{\circ }$$ △ H ads . ∘ +122.61 kJ mol ) spontaneous process G}_{{\rm{ads}}.}^{\circ G . −29.161 −36.801 low degree randomness S}_{{\rm{ads}}.}^{\circ S 0.5093 ).

Язык: Английский

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Chiral helical peptide nanomaterials: Construction strategies and applications

Nano Today, Год журнала: 2025, Номер 62, С. 102703 - 102703

Опубликована: Март 13, 2025

Язык: Английский

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Nervous System Repair and Immunity: Chiral Effects of Biomimetic Self‐Assembled Neuropeptide Hydrogels

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 14, 2025

Abstract Function‐encoding peptides have emerged as promising biomaterials capable of replicating the robust biological functions extracellular matrix (ECM). Nevertheless, full potential their sequence designability remains to be explored develop highly bioactive peptide‐based with minimal immunogenicity. In this study, chiral are self‐assembled into supramolecular hydrogels (FFFKTTKS/fffkttks) incorporating an active derived from collagen hydrolysis, a key ECM factor. While FFFKTTKS (L‐type) and fffkttks (D‐type) exhibit comparable viscoelasticity, porosity, architecture, they differ in nanofiber composition, particularly helical orientation. model spinal cord injury, hydrogel demonstrates superior neuronal regeneration motor function recovery compared its counterpart. Further investigations reveal that both equally promote expression ECM‐related genes, subsequently regulating nerve cell adhesion, differentiation, synaptic regeneration. Notably, elicits mild immune response exhibits moderate anti‐inflammatory properties. contrast, triggers response, activating TNF pathway microglia vivo. These findings underscore nanoscale superstructures specific peptide sequences can effectively modulate biocapability neuroregeneration, providing critical insights for rational design synthetic ECM.

Язык: Английский

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Amplification of Asymmetry via Structural Transitions in Supramolecular Polymer–Surfactant Coassemblies

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Май 8, 2025

Asymmetric structures are widespread in nature and essential for life biointeractive materials. Although uniformly operates with homochirality, the hierarchical control of asymmetry synthetic, water-soluble molecular systems is still underexplored. In this work, we present amplification helical benzene-1,3,5-tricarboxamide (BTA) supramolecular polymers by coassembly homochiral nonionic surfactants. For these mixtures, a strong was observed from surfactant's chirality to preferred helicity coassembled polymers. This showed maxima at identical stoichiometric ratios structurally distinct chiral surfactants, demonstrating similarity mechanism. Notably, surfactant-induced completely overridden introduction stereogenic centers into BTA structure, emphasizing subtlety process. Using combination spectroscopy microscopy, found that surfactants coassemble change fiber morphology racemic double helices single handedness. Furthermore, coassemblies unique dynamics. Our results elucidate consequences polymer-surfactant coassembly, offering valuable insights resulting asymmetric structures.

Язык: Английский

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Synthesis of Anisotropic Gold Microparticles via L‐Glutathione‐Mediated Pathways in Droplet Microfluidics

Particle & Particle Systems Characterization, Год журнала: 2024, Номер unknown

Опубликована: Июнь 7, 2024

Abstract Microfluidic‐assisted synthesis of nanoparticles has generated significant interest for its precise control and high throughput capabilities. Among various nanomaterials, gold (AuNPs) have shown remarkable potential in numerous applications, such as disease detection, photothermotherapy, drug delivery, even defense applications. Recent strategy peptide‐mediated method sparked greater by offering unique chiroptical properties their applications biomedical In this study, the use droplet microfluidics is explored AuNPs, aiming to accelerate automated production via flow chemistry. This leads formation anisotropic particles, with sizes ranging from hundreds nanometers micron scale. The interfacial energy identified at water/oil interface a critical factor influencing outcome, L‐glutathione (L‐GSH) playing role development hyper‐branched structures. These results demonstrate capability producing particles scales, presenting new possibilities advancement nanoparticle techniques.

Язык: Английский

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Chirality and self-assembly of structures derived from optically active 1,2-diaminocyclohexane and catecholamines

Nanotechnology Reviews, Год журнала: 2024, Номер 13(1)

Опубликована: Янв. 1, 2024

Abstract Chiral biomimetic nanostructures were successfully synthesized through the oxidative polymerization of chiral and achiral catecholamines in presence optically active 1,2-diaminocyclohexane (DACH). Analysis these using circular dichroism confirmed their nature, demonstrating feasibility inducing chirality polycatecholamine materials. Furthermore, exhibited self-assembly behaviour, forming distinctive patterns or curly carpets-like structures on silicon surfaces. The arrangement morphology closely linked to amount DACH its inherent chirality. Additionally, process was shown be significantly influenced by pH reaction choice supporting These findings are particularly relevant context molecular nanoaggregates/particles generated during dopamine polymerization, suggesting a promising avenue for development novel polycatechols-based

Язык: Английский

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Effect of Chiral Polymers on Muse Cell Proliferation and Differentiation

Опубликована: Янв. 1, 2024

Язык: Английский

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Effect of chiral polymers on Muse cell proliferation and differentiation

Materials Today Chemistry, Год журнала: 2024, Номер 42, С. 102425 - 102425

Опубликована: Ноя. 26, 2024

Язык: Английский

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