نتایج جستجو برای: hydrogel beads

تعداد نتایج: 25204  

Journal: :Macromolecular bioscience 2006
Jun Shi Natália M Alves João F Mano

A series of semi-interpenetrating, polymer network (semi-IPN), hydrogel beads, composed of calcium alginate (Ca-alginate) and poly(N-isopropylacrylamide) (PNIPAAM), were prepared for a pH/temperature-sensitive drug delivery study. The equilibrium swelling showed the independent pH- and thermo- responsive nature of the developed materials. At pH=2.1, the release amount of indomethacin incorporat...

Journal: :Acta Periodica Technologica 2021

The aim of this study was to develop a stable hydrogel carrier system for thyme essential oil (TEO) that could protect its sensitive polyphenol compounds. impact wall material (soy protein and alginate) on encapsulation efficiency thymol release in simulated gastrointestinal conditions, investigated. ~ 80 % 20 gastric pancreatic solutions, respectively. Thyme plays an important role as antimicr...

Journal: :International journal of pharmaceutical investigation 2022

Background: Glibenclamide is a second-generation sulfonylurea extensively associated with the therapy of diabetes mellitus. A sustained release drug in gastrointestinal tract may aid maintaining therapeutic range for an extended period time. Alginate and pectin are two commonly used biopolymers field delivery favourable biodegradation biocompatibility. Materials Methods: In present study, pecti...

Journal: :Journal of biomedical materials research. Part A 2007
Yuanfang Liu Shaopeng Wang Justin Krouse Nicholas A Kotov Mohammad Eghtedari Gracie Vargas Massoud Motamedi

Successful regeneration of biological tissues in vitro requires the utilization of three-dimensional (3D) scaffolds that provide a near natural microenvironment for progenitor cells to grow, interact, replicate, and differentiate to form target tissues. In this work, a rapid aqueous photo-polymerization route was developed toward the fabrication of a variety of polymer hydrogel 3D inverted coll...

Journal: :International Journal of Biological Macromolecules 2021

High amounts of toxic textile dyes are released into the environment due to coloring and wastewaters treatment processes' inefficiency. To remove from wastewaters, researchers focused on applying immobilized enzymes mild reaction conditions enzyme nontoxicity. Laccases oxidases with wide substrate specificity, capable degradation many different dye types. Laccase Streptomyces cyaneus was expres...

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