نتایج جستجو برای: application of nano

تعداد نتایج: 21216763  

اسدی, مرضیه, اهتمام, محمد حسین, خوشگفتارمنش, امیرحسین, زاهدی, مرتضی,

This pot experiment was conducted to investigate the effects of ordinary and nano forms of zinc oxide on growth and ion content of four wheat cultivars (Niknejad, Iniya, Rowshan and Moghan2) under three salinity levels (0, 75 and 150 mM NaCl). In this experiment, shoot and root dry weight, and concentration of potassium, sodium and zinc in shoots were measured. Results showed that with an incre...

Journal: :Journal of Photopolymer Science and Technology 2002

Journal: :جنگل و فرآورده های چوب 0
حسین جلالی ترشیزی استادیار گروه فناوری سلولز و کاغذ دانشکدة مهندسی فناوری‏های نوین دانشگاه شهید بهشتی، تهران، ایران سعیده زارع بیدکی کارشناس ارشد گروه فناوری سلولز و کاغذ دانشکدة مهندسی فناوری‏های نوین دانشگاه شهید بهشتی، تهران، ایران امید رمضانی استادیار گروه فناوری سلولز و کاغذ دانشکدة مهندسی فناوری‏های نوین دانشگاه شهید بهشتی، تهران، ایران حمیدرضا رودی استادیار گروه فناوری سلولز و کاغذ دانشکدة مهندسی فناوری‏های نوین دانشگاه شهید بهشتی، تهران، ایران

various kinds of chemicals are used in papermaking to enhance paper properties and to improve efficiency of the production process. in the presence of cationic starch as an anionic charge catcher, effects of nano silica/cationic polyacrylamide complex on retention, drainage time, water volume drained by dynamic drainage jar and properties of paper recycled from old corrugated container were inv...

Journal: :علوم و فنون بسته بندی 0
علیرضا سوخته سرایی الهام نوروزی

in this study, the potential use of nano-coatings for food packaging industry has been investigated. therefore, this study has been presented in three sections: the application of nanocoatings in the food industry, natural, edible and biodegradable nano coatings. the use of nanoscale or multiatomic coatings have presented specific features in the packing industry. coatings which have shown thei...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
surena vahabi dept. of periodontics, dental school, shahid beheshti university of medical sciences, tehran, iran. fatemeh mardanifar dental school, shahid beheshti university of medical sciences, tehran, iran.

objective: maintaining the health of oral tissues is a major goal in dentistry. however, limitations in dental materials, instruments, procedures and medications prevent achievement of this goal. advances in nanotechnology have paved the way to approach this goal. this study reviews the advances on nanotechnology in dentistry. review of literatures: in this review study, google scholar, pubmed,...

Journal: :international journal of nano dimension 0
m. khatamifar department of chemistry, faculty of sciences, shahid bahonar university of kerman, kerman, iran. z. rashidi ranjbar department of chemistry, faculty of sciences, shahid bahonar university of kerman, kerman, iran. s. j. fatemi department of chemistry, faculty of sciences, shahid bahonar university of kerman, kerman, iran.

this work reports a facile sonochemical route in the synthesis of nano particle of deferasirox for the first time. one application of nanotechnology is in improvement of available treatments for various diseases. deferasirox (icl670 or exjade) is a tridentate chelating agent for removing transfusion overload iron in thalassemia patients. in the present work, deferasirox was prepared in nano size...

2007
Sandeep Unnikrishnan Henri Jansen Erwin Berenschot Miko Elwenspoek

⎯ A new micromachining method to fabricate wafer scale, atomically smooth nano-membranes is described. The delicate membrane is supported on a robust silicon microsieve fabricated by plasma etching. The supporting sieve is micromachined independently of the nano-membrane, which is later fusion bonded to it. The transferred thin-film membrane can be dense, porous or perforated according to the a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و - پژوهشکده علوم نانو 1392

among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

Background: The incidence of esophageal squamous cell carcinoma (ESCC) is increasing, causing catastrophic health burdens on communities. Curcumin has shown promise as a therapeutic agent in the treatment of colon, colorectal, pancreatic, and esophageal cancers but it has very poor bioavailability. The application of nano-carriers as drug delivery systems increases curcumin's bioavailability. C...

Batoul Hashemibeni Farahnaz Nejatidanesh Mohammadhossein Fathi Moluk Aivazi, Vajihesadat Mortazavi,

Ceramic dental materials have been considered as alternatives to metals for dental implants application. In this respect, zirconia tetragonal stabilized with %3 yttrium, is of great importance among the ceramic materials for endosseous dental implant application. Because of its good mechanical properties and color similar to tooth. The aim and novelty of this study was to design and prepare Y-T...

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