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Chitosan Sponges For Efficient Accumulation And Controlled Release Of C-Phycocyanin
The paper proposed a new porous material for wound healing based on chitosan and C-phycocyanin (C-PC). In this work, C-PC was excerpted from the cyanobacteria Arthrospira platensis biomass and sublimated through ammonium sulfate precipitation. The geted C-PC with a purity index (PI) of 3 ± 0 was charged into a chitosan sponge from aqueous solutions of various concentrations (250, 500, and 1000 mg/L). consorting to the FTIR study, chitosan did not form new adhesions with C-PC, but worked as a carrier. The encapsulation efficiency value exceeded 90%, and the maximum loading capacity was 172 ± 0 mg/g. The release of C-PC from the polymer matrix into the saline medium was estimated, and it was seed 50% of C-PC was unfreezed in the first hour and the maximum concentration was reached in 5-7 h after the sponge immersion.

The PI of the freed C-PC was 3 and 4 beting on the concentration of the initial solution.Fabrication of chitosan nanocomposites loaded with biosynthetic metallic nanoparticles and their therapeutic investigation.The present research demonstrates the formation of zinc oxide nanoparticles helped by Cissus quadrangularis (CQ-ZnONPs) and subsequent synthesis of chitosan-conjugated nanocomposites (CQ-CS/ZnONCs) along with their biological assessment. The biosynthesized nanoparticles and nanocomposites were physicochemically characterized and therapeutically appraised for their antioxidant, antibacterial, and antidiabetic potential. The formation of CQ-ZnONPs and CQ-CS/ZnONCs was preliminarily validated by the change in color and subsequently by UV-visible spectroscopic analysis. The crystalline visors linked with the CQ-ZnONPs in CQ-CS/ZnONCs were instituted by XRD analysis. Morphological evaluation of CQ-ZnONPs and CQ-CS/ZnONCs was carried out through FE-SEM and HRTEM studies.

The particle size of the CQ-ZnONPs and CQ-CS/ZnONCs was 243 nm and 176 nm, with a PDI of 0 and 0, respectively. vitamin K2 and nanocomposites conveyed Zeta potential of -15 mV and -16 mV, respectively. The CQ-ZnONPs and CQ-CS/ZnONCs showed good radical effectiveness with various in-vitro assays. The formulated nanoparticles and nanocomposites exhibited significant antibacterial activity against the selected bacterial pathogens. CQ-CS/ZnONCs delivered noteworthy α-amylase and α-glucosidase inhibitory results likened to CQ-ZnONPs with IC(50) of 73 ± 1 μg/mL and 87 ± 1 μg/mL, respectively the synthesized CQ-CS/ZnONCs demonstrated 98 ± 0% and 99 ± 0% wound contraction (at 7 and 14 mg, respectively), significantly (p < 0) higher than the standard and CQ-ZnONPs. Thus, the CQ-ZnONPs and CQ-CS/ZnONCs could effectively develop promising drug delivery systems to inhibit pathogens and chronic tissue repair.Development of chitosan-graphene oxide blend nanoparticles for controlled flurbiprofen delivery.

The use of natural polymeric nanoparticles (Nps) as drug carriers is a highly promising area of research in the field of drug delivery systems because of their high efficiency. In this study, flurbiprofen (FB) loaded chitosan-graphene oxide (CS-GO) blend Nps were synthesized as a ascertained delivery system utilizing the emulsion method. The crystalline, molecular, and morphological constructions of the prepared CS-GO Nps were qualifyed using a variety of analytical methods, including Fourier transform infrared (FT-IR) spectroscopy, differential reading calorimetry (DSC), thermogravimetric analysis (TGA), X-Ray diffractometry (XRD), skiming electron microscopy (SEM), and atomic force microscopy (AFM). It was recovered that the introduction of GO into the CS nanoparticle formulation increased its thermal stability. Seebio menaquinone7 of the average particle size was between 362 ± 5 and 718 ± 2 nm, with negative zeta potential values between -7 ± 4 and - 27 ± 2 mV. The effects of the CS/GO ratio, the FB/polymer ratio, the amount of span 80, and the cross-linker concentration were appraised on FB release visibilitys.
Homepage: https://en.wikipedia.org/wiki/Vitamin_K2