نتایج جستجو برای: chitosan production

تعداد نتایج: 620292  

Hajar Rajayi Kazem Ahmadi Mahdi Fasihi Ramandi Mahdi Kamali Majid Pirestani, Mirza Ali Mofazzal Jahromi Reza Mirnejad, Sharafaldin Al-Musawi Zuhair Mohammad Hassan

Background: Curcumin as a yellow natural compound extracted from turmeric root is known it as an antibacterial agent. One of the nanoparticles ability is to decrease the defects of usual drug delivery systems. Chitosan is a low toxic, biodegradable, biocompatible and safe polymer which is used in production of nanoparticles. Nanoparticles like chitosan-tripolyphosphate (TPP) are able to increas...

2014
Jimmy LN Vo Lirong Yang Samantha L Kurtz Sean G Smith Bhanu prasanth Koppolu Sruthi Ravindranathan David A Zaharoff

Metastasis accounts for approximately 90% of breast cancer-related deaths. Therefore, novel approaches which prevent or control breast cancer metastases are of significant clinical interest. Interleukin-12 (IL-12)-based immunotherapies have shown promise in controlling metastatic disease, yet modest responses and severe toxicities due to systemic administration of IL-12 in early trials have hin...

Journal: :Arthritis Research & Therapy 2009
Pascale Simard Hugo Galarneau Sébastien Marois Daniel Rusu Caroline D Hoemann Patrice E Poubelle Hani El-Gabalawy Maria JG Fernandes

INTRODUCTION Osteoarthritis is characterized by the progressive destruction of cartilage in the articular joints. Novel therapies that promote resurfacing of exposed bone in focal areas are of interest in osteoarthritis because they may delay the progression of this disabling disease in patients who develop focal lesions. Recently, the addition of 80% deacetylated chitosan to cartilage microfra...

2011
Jolanta Kumirska Mirko X. Weinhold Jorg Thöming Piotr Stepnowski

The physicochemical nature of chitin and chitosan, which influences the biomedical activity of these compounds, is strongly related to the source of chitin and the conditions of the chitin/chitosan production process. Apart from widely described key factors such as weight-averaged molecular weight (MW) and degree of N-acetylation (DA), other physicochemical parameters like polydispersity (MW/MN...

Journal: :Journal of biotechnology 2007
T C Santos A P Marques S S Silva J M Oliveira J F Mano A G Castro R L Reis

Several novel biodegradable materials have been proposed for wound healing applications in the past few years. Taking into consideration the biocompatibility of chitosan-based biomaterials, and that they promote adequate cell adhesion, this work aims at investigating the effect of chitosan-based membranes, over the activation of human polymorphonuclear neutrophils (PMNs). The recruitment and ac...

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...

2017
Nuria Escudero Federico Lopez-Moya Zahra Ghahremani Ernesto A. Zavala-Gonzalez Aurora Alaguero-Cordovilla Caridad Ros-Ibañez Alfredo Lacasa Francisco J. Sorribas Luis V. Lopez-Llorca

The use of biological control agents could be a non-chemical alternative for management of Meloidogyne spp. [root-knot nematodes (RKN)], the most damaging plant-parasitic nematodes for horticultural crops worldwide. Pochonia chlamydosporia is a fungal parasite of RKN eggs that can colonize endophytically roots of several cultivated plant species, but in field applications the fungus shows a low...

Introduction: Antibiotic-carrying nanoparticles have cytotoxic effects on drug-resistant bacteria. The aim of the present study was to evaluate the effect of chitosan nanoparticles carrying amoxicillin and clavulanic acid on the viability of staphylococcus aureus strains.    Materials & Methods: In this study, chitosan nanoparticles were prepared by ionic gelation method and were loaded by amo...

ژورنال: پژوهش در پزشکی 2019

Background: Leishmania major (L.major) is a causative agent of leishmaniasis. The disease has now become a public health problem. Modulation of the immune responses to inhibit the infection or the proliferation of the parasite is an effective way to overcome the leishmaniosis. Leishmania parasite secretory-excretory antigens are responsible for immune system modulation; therefore, they are u...

Ali Bahrami-Samani Amir Reza Jalilian, Hassan Yousefnia, Mehdi Akhlaghi, Mohammad Ghannadi-Maragheh Mohammad Mazidi Samaneh Zolghadri Simindokht Shirvani-Arani,

Introduction: In this research, [166Ho]Holmium chitosan complex production is described in details, followed by determination of complex radiochemical purity, stability and biodistribution (after intra-articular injection) in wild-type male rats. Finally a Ho-166 based chitosan kit for ultimate radiosynovectomy as well as radiotherapy applications was developed. Methods: 166</s...

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