Stable and biodegradable oil in water (O/W) nano-emulsions can have a huge impact on a wide range of bio-applications, from food to cosmetics and pharmaceuticals. Emulsions, however, are immiscible systems unstable over time; polymer coatings are known to be helpful, but an effective procedure to stabilize monodisperse and biodegradable O/W nano-emulsions is yet to be designed. Here, we coat bi...

Chitosan-collagen scaffolds were produced by freeze-drying method and coated with a thermoresponsive polymer poly(N, N-diethylacrylamide) (PDEAAm) to confer them temperature sensitivity using a non residue technology, the supercritical carbon dioxide (scCO2). All native and coated scaffolds were characterized by SEM, intrusion mercury porosimetry, swelling, biodegradability and mechanical analy...

We present a study of a range of cross-linked chitosan composites with potential antimicrobial applications. They were formed by cross-linking chitosan and siloxane networks and by introducing silver and gold nanoparticles (NPs). The aim was to investigate whether adding the metal NPs to the chitosan-siloxane composite would lead to a material with enhanced antimicrobial ability as compared to ...

Chitosan, a natural biodegradable polymer, is of great interest in biomedical research due to its excellent properties including bioavailability, nontoxicity, high charge density, and mucoadhesivity, which creates immense potential for various pharmaceutical applications. It has gelling properties when it interacts with counterions such as sulfates or polyphosphates and when it crosslinks with ...

The aging of paper depends on various factors, including environmental conditions, microbiological factors and chemical composition. Chitosan-coated is an eco-friendly material that has potential use in packaging applications due to its mechanical, barrier antibacterial properties. In this study, the stability chitosan-coated wood-free wrapping was evaluated by examining pulp four samples with ...

In this study, the effects of coatings made of chitosan (Chi) incorporating thyme essential oil (TEO) on lipid oxidation and changing color indexes of walnut kernels were investigated. Chi: pure, in accompany with TEO at concentrations of 500 and 1000 microliter per liter, in an aqueous coating solution, with different packaging methods: Gunny sack, polypropylene and active packaging, compared ...

Abstract Chitin has proven to have a good mechanical and electrical properties be used in making piezoelectric thin films. However, due the restriction solubilizing chitosan many solvents, there is increasing interest exploring of producing Chitosan, compared chitin, can easily solubilized certain dilute acids. Chitosan that been extracted from fungal biomass for fabrication biomaterial There a...

The biocompatible and biodegradable polymer nanofiber with high potential for anti-bacterial coating are used for: multi-functional membranes, tissue engineering, wound dressings, drug delivery, artificial organs, vascular grafts and etc. Electrospinning nanofiber made of scaffolding due to characteristics such as high surface to volume ratio, high porosity and very fine pores are used for a wi...

Hydroxyapatite (HAp) can be applied as a bone implant material. HAp was composited with chitosan and polyvinyl alcohol (PVA) coated to Ti6Al4V improve its biocompatibility. The composite HAp-chitosan-PVA anodized unanodized Ti6Al4V. Modification of the surface by anodizing done using 20 V voltage. metal alloy electrophoretic deposition (EPD) method voltage 80 V. composites in nanotubes non-nano...