نتایج جستجو برای: chitosan beads

تعداد نتایج: 29367  

Journal: :International Journal of Environment, Agriculture and Biotechnology 2017

A Pardakhty F Hassanzadeh P Khazaeli

Microencapsulation has become a common technique in the production of controlled release dosage forms. Many results have been reported, concerning the use of alginate beads as controlled release drug formulations. Alginate has a unique gel-forming property in the presence of multivalent cations, in an aqueous medium. Ibuprofen is an excellent analgesic and antipyretic, non-steroidal anti-inflam...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه محقق اردبیلی - دانشکده علوم 1392

مهندسی بافت ترکیبی از سلول و داربست سه بعدی جهت ترمیم بافت آسیب دیده یا از بین رفته ی ماهیچه است. در این راستا, نانو داربست های کامپوزیت نانولوله های کربنی و کایتوزان و هیدرکسی آپاتیت، نانولوله های کربنی و کایتوزان و داربست کایتوزان با روش freeze dryingتهیه شد. داربست های تهیه شده، از لحاظ خصوصیات سطحی، درصد تخلخل، اندازه ی منافذ، نحوه ی توزیع منافذ، رفتار تخریب پذیریو ترکیب تشکیل دهنده ی داربس...

Journal: :Water 2021

Biochar and chitosan are considered as green cost-effective adsorbents for water purification; the combination of these two materials may lead to an improved adsorption capacity generated adsorbents. Most sorption studies have been focused on ability adsorb one contaminant or same type contaminants. Thus, this study aimed produce chitosan-biochar beads (CH-BB) test their efficiency in simultane...

Journal: :Inorganic Chemistry Communications 2022

A heterojunction AgBr/Ag/AgCoO2 nanocomposite was synthesized by hydrothermal followed deposition precipitation method. The morphology, crystallinity and band structure of the nanoparticles were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD) UV–Vis diffuse reflectance spectroscopy (UV DRS). beads prepared coating material on petrocoke with aid chitosan. performa...

Journal: :Coatings 2023

A green protocol for the in situ synthesis of Pd nanoparticles on chitosan beads (Pd NPs-CS) is reported without need to use any toxic reducing agents. The preparation catalyst was performed using a simple coordination reaction between prepared and palladium ions NPs-CS). obtained characterized by different techniques, including SEM, EDX, DRX, FTIR analyses. NPs-CS investigated Suzuki–Miyaura c...

Background: Polymethylmethacrylate antibiotic impregnated beads can be an effective treatment for chronicosteomyelitis or an adjuvant in the treatment of open fractures. It remains unclear however whether the beads causelong-term adverse events if not removed. The purpose of this study was to determine if removal of antibiotic beads wasrequired in order to avoid long term comp...

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