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Impact of Side Chain Polarity on Non-Stoichiometric Nano-Hydroxyapatite Surface Functionalization with Amino Acids

In this study the affinity of three amino acids for the surface of non-stoichiometric hydroxyapatite nanoparticles (ns-nHA) was investigated under different reaction conditions. The amino acids investigated were chosen based on their differences in side chain polarity and potential impact…

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Multilayer self-assembled kappa carrageenan/ chitosan: Heparin coating on Mg alloys for improving blood compatibility

The study aims to develop a layer-by-layer (LbL) self-assembled coating of Kappa carrageenan (KC) and heparin-loaded chitosan nanoparticles on the AZ91 alloy modified using micro-arc oxidation (MAO) to control its high corrosion rate and improve the hemocompatibility. In this regard,…

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Impact of operating conditions for the continuous-flow removal of dye effluents in a fixed-bed reactor using light expanded clay aggregate as a green adsorbent with ultrasound-assisted desorption

The adsorption of Reactive Red 33 dye from aqueous solution onto light expanded clay aggregate (LECA) in a batch mode, fixed-bed reactor has been investigated. The adsorption studies were determined as a function of dye initial concentration, pH, flow rate,…

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Nanoammonium salt: a novel and recyclable organocatalyst for one-pot three-component synthesis of 2-amino-3-cyano-4H-pyran derivatives

,3-Propanediaminium methanesulfonate [(PDA)(MeSO3)] was synthesized as the first nanoaliphatic ammonium salt via a safe and simple chemical route in aqueous media. [(PDA)(MeSO3)] ammonium salt was characterized by XRD, TEM, SEM, EDS, DLS, AFM, 1H NMR, 13C NMR, FT-IR, TG, and…

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Nanocarrier systems assembled from PEGylated hyperbranched poly(arylene oxindole)

Nanoparticles (NPs) formed from hyperbranched polymers are highly attractive organized structures in nanomedicine. Herein, we utilize copper-catalyzed azide-alkyne cycloaddition of hyperbranched poly(arylene oxindole) derivatives to prepare amphiphilic conjugates with different degrees of PEGylation that form spherical NPs in water with…

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