نتایج جستجو برای: nano chitosan

تعداد نتایج: 67189  

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
میترا طبری mitra tabari dental materials research center, dental school, babol university of medical sciences, babol-iranمرکز تحقیقات مواد دندانی، دانشکده دندانپزشکی، دانشگاه علوم پزشکی بابل همایون علاقه مند homayoun alaghemand dental materials research center, dental school, babol university of medical sciences, babol-iranمرکز تحقیقات مواد دندانی، دانشکده دندانپزشکی، دانشگاه علوم پزشکی بابل محمود ربیعی mahmoud rabiee mechanic school, babol universityدانشکده مکانیک، دانشگاه صنعتی بابل. ثریا خفری sorayya khefri dental materials research center, medical school, babol university of medical sciences, babol-iran، دانشکده پزشکی، دانشگاه علوم پزشکی بابل سید مسعود سید احدی massoud seyyed ahadi dental school, ardebil university of medical sciences, ardebil-iranدانشکده دندانپزشکی، دانشگاه علوم پزشکی اردبیل محمدرضا نیک پور mohammad-reza nikpour nanobiotechnology research center, babol universityمرکز تحقیقات نانوبیوتکنولوژی، دانشگاه صنعتی بابل.

objective: oral iron drops are recommended for children aged 6-24 months to prevent iron-deficiency anemia. however, their use is associated with the potential risk of erosion and microhardness reduction of primary teeth enamel due to their high acidity. it seems that the combination of silicone oil, nano-hydroxyapatite and chitosan powder may be able to improve the microhardness and surface st...

Journal: :Cogent engineering 2023

Water is the most crucial element for living, and lack of pure clean water has increased globally. Hence, need remediation from different pollutants a must. Developing techniques to accomplish purification expanding every day. Chitosan biodegradable eco-friendly biopolymer which extensively used in various applications. Here, we focus on using chitosan nano complexes with ferrites, graphene, si...

2014
Manjusha Hariharan Benny Cherian

Calcium carbonate nano particles were synthesized using precipitation method from cockle shells by employing chitosan as precursor. Synthesized Calcium carbonates were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-Visible and FTIR Spectroscopy. The results were compared with commercial calcium carbonate nano particles. Cockle shells are the potential source...

2018
Saad B Qasim Muhammad S Zafar Shariq Najeeb Zohaib Khurshid Altaf H Shah Shehriar Husain Ihtesham Ur Rehman

Electrospinning has been used for decades to generate nano-fibres via an electrically charged jet of polymer solution. This process is established on a spinning technique, using electrostatic forces to produce fine fibres from polymer solutions. Amongst, the electrospinning of available biopolymers (silk, cellulose, collagen, gelatine and hyaluronic acid), chitosan (CH) has shown a favourable o...

Journal: :Carbohydrate polymers 2015
V Rubentheren Thomas A Ward Ching Yern Chee Chee Kuang Tang

Chitosan film reinforced with nano-sized chitin whiskers and crosslinked using tannic acid was synthesized by the casting-vaporation method. The mechanical and physicochemical properties of several film samples (consisting of different ratio of chitin and tannic acid) were compared with neat chitosan. Tensile tests show that the addition of chitin improves the nanocomposite films mechanical pro...

2012
Prabhakara Prabhu Rakshith Shetty Marina Koland K Vijayanarayana KK Vijayalakshmi M Harish Nairy GS Nisha

BACKGROUND The purpose of this study was to formulate and evaluate nano lipid vesicles of methotrexate (MTX) for its anti-rheumatoid activity. METHODS In this study the principle of both active as well as passive targeting using MTX-loaded stealth liposomes as per the magic gun approach was followed. Stealth liposomes of MTX were prepared by thin-film hydration method using a PEGylated phosph...

Journal: :مهندسی بیوسیستم ایران 0
علی صحرایی خوش گردش کارشناسی ارشد، گروه علوم وصنایع غذایی، دانشکده کشاورزی و منابع طبیعی،دانشگاه آزاد اسلامی،واحدعلوم و تحقیقات یزد فوژان بدیعی دانشیار پژوهش بخش تحقیقات مهندسی صنایع غذایی و فناوری پس از برداشت، موسسه تحقیقات فنی و مهندسی کشاورزی، ایران سید علی یاسینی اردکانی استادیار، گروه مهندسی علوم و صنایع غذایی، دانشکده کشاورزی و منابع طبیعی دانشگاه آزاد اسلامی،واحدعلوم و تحقیقات یزد

the effects of a nano-emulsion chitosan-based coating on enhancing the shelf-life and quality of golab kohanz apples were studied. the nano-emulsion coating containing chitosan with a concentration of 2000 ppm was applied for coating of golab kohanz apples. coated and uncoated apples were packed in normal packaging cardboards and kept at 2 ± 1 °c with a relative humidity within 80-85%. flesh fi...

2016
Z. Abdi S. Sedaghat

25 ABSTRACT: In this work the synthesis of polyaniline/chitosan/functionalized singlewalled carbon nanotube nanocomposite is carried out. For this purpose, single -walled carbon nanotubes were reacted with thionyl chloride to change the hydroxyl to acyl chloride groups for improving the react ability. In other step, aniline monomers and chitosan were polymerized in the presence of Iron (III) Ch...

Journal: :Acta pharmaceutica 2012
Zohreh Mohammadi Farid Abedin Dorkoosh Saman Hosseinkhani Tina Amini Amir Abbas Rahimi Abdolhossein Rouholamini Najafabadi Morteza Rafiee Tehrani

A successful gene delivery system requires efficiency and stability during storage. Stability studies are imperative for nanomedicines containing biotechnological products such as plasmids and targeting peptides. Chitosan-DNA-FAP-B nanoparticles are novel non-viral vectors for specific gene delivery to the lung epithelial cells. In this study, the storage stability of chitosan-DNA-FAP-B nanopar...

2012
Pawan Kaur Rajesh Thakur Ashok Choudhary

This research is reports the fungicidal properties of nano-size silver/chitosan nanoformulations (NFs) used as an agent for antifungal treatment of various seed borne plant pathogens. Fungal phytopathogens, especially seed borne disease causing species, Rhizoctonia solani, Aspergillus flavus, Alternaria alterneta were isolated form chickpea seeds. Differences were observed in the antifungal act...

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