In-situ synthesis of CuO on cotton fibers with antibacterial properties and reusable photocatalytic degradation of dyes.

In this study, the cotton fabrics/cuprous oxide-nanocellulose (CuO-NC) flexible and recyclable composite material (COCO) with highly efficient photocatalytic degradation of dyes and antibacterial properties was fabricated. Using flexible cotton fabrics as substrates, CuO were in-situ synthesized to make CuO uniformly grew on cotton fibers and were wrapped with NC. The photocatalytic degradation ability of COCO-5 was verified by use methylene blue (MB), the degradation rate was as high as 98.

Chitosan/calcium phosphate flower-like microparticles as carriers for drug delivery platform.

A special flower-like chitosan (CS)/calcium phosphate (CaP) microparticle was fabricated as a novel pH-sensitive carrier for sustained release drug system via a rapid one-pot approach. The CS-tripolyphosphate (TPP) nanocomplexes were firstly prepared through ionotropic gelation. Then, the CS nanocomplexes network acted as the template and inducer for adsorbing the mineralized CaP nanosheets and directing its assembly into the flower-like microparticles.

Soluble expression and purification of high-bioactivity recombinant human bone morphogenetic protein-2 by codon optimisation in Escherichia coli.

We developed a simple method of preparing recombinant human bone morphogenetic protein-2 (rhBMP-2) with high biological activity. This rhBMP-2 was overproduced in Escherichia coli as a fusion protein with thioredoxin 6xHis-tag at its amino terminus. The cDNA fragment of human bone morphogenetic protein-2 (hBMP-2) fused to the secretion signal of alkaline phosphatase (PhoA) was expressed under T7 promoter in E.

Preparation and drug release property of tanshinone IIA loaded chitosan-montmorillonite microspheres.

In this study, a biocompatible chitosan/montmorillonite (CS/MMT) composite microsphere was developed as a carrier for loading and sustained-release of the hydrophobic drug of tanshinone IIA. Though the compatibility between hydrophobic drugs and hydrophilic matrix was fairly poor, tanshinone IIA was successfully loaded on the microsphere by the solvent exchange process during chitosan matrix dehydration. The microstructure of the resulting microspheres was characterized with several techniques, such as X-ray diffraction (XRD), thermo-gravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscope (SEM).

Bioactivity and pharmacological properties of α-mangostin from the mangosteen fruit: a review.

Introduction: α-Mangostin (α-MG) is the most representative xanthone isolated from the pericarp of mangosteen, possessing extensive biological activities and pharmacological properties, considered as an antineoplastic agent, antioxidant, anti-proliferation and induces apoptosis.

Areas Covered: The bioactivity and pharmacological properties of α-MG are being actively investigated by various industrial and academic institutions. The bioactivities of α-MG have been summarized in several previous reviews, which were worthy of high compliment.

aqueous extract and its active constituent quercetin potentiate the hypnotic effect of pentobarbital via the serotonergic system.

(FA) is reportedly used for treatment of insomnia and anxiety in traditional medicine. The hypnotic effect of an extract of FA (FAE) and its constituent quercetin [2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one, QR] was examined in mice. QR is a widely distributed natural flavonoid abundant in FA flowers and other tissues.