Iran's Scientific Research in Nanotechnology

[Sam1980]

Hello,

I created this thread solely for following up on Iran's progress in field of Nanotechnology, please discuss all you want, but don't **** this thread up.

Thanks in advance,

Sam1980

Nanopolymers Open New Way to Detect Cancerous Tumors


TEHRAN (INIC)- A group of Iranian researchers succeeded in the synthesis of a new type of polymer that has medical properties to detect breast cancer and hepatic tumors in the early stages.

The drug which was synthesized in association with Control Laboratory of Food and Drug Department of Iran's Ministry of Health, Hygiene, and Medical Education can be used in MRI as the contrast agents in addition to curing cancerous tumors.

The aim of this study was to evaluate the contrast optimization of silicon-based gadolinium oxide nanoparticles with nanocomposite coating, and to compare gadolinium nanoparticle with the common contrast agent in magnetic resonance imaging (Magnevist). In this study, the new emulsion made of gadolinium oxide nanoparticle and POSS-PCU nanocomposite was investigated. In comparison with Magnevist, gadolinium oxide nanoparticles can increase the signal of MRI by reducing relaxation time or by increasing the rate of relaxation. They can also create high contrast optimization in MRI as positive contrast in comparison with iron oxide nanoparticles (negative contrast agent).

In line with targeting methods and through connecting to biocompatible materials, the new medicine has obtained other useful results in drug delivery in order to detect lymphatic glands of breast cancer and hepatic tumors.

Since the non-nanoic sample of this drug has acquired the confirmation of US Foodstuff and Medications Standard Organization, it has FDA certificate. The drug has passed the laboratorial and animal tests, and it is going to be tested on humans too.

Results of the research have been published in December 2010 in Biological Trace Element Research, vol. 137, issue 3. For more information about the details of the research, study the full article on pages 324-334 on the same journal.

http://irannano.org/nano/index.php?ctrl=news&actn=news_view&id=44397&lang=2

For doubters and seekers: http://www.ncbi.nlm.nih.gov/pubmed/20049554

 

[Sam1980]

Nano Gold Kits Create New Hope for Diagnosis of Influenza Virus in Poultry

TEHRAN (INIC)- Iranian researchers from University of Tehran used gold nanoparticles to produce a new type of diagnosis kit which is able to detect the poultry suffering from influenza virus.

Results of this research have applications in veterinary to diagnose the disease and to segregate the poultry that are infected by influenza virus.

The separation of infected poultry from the vaccinated ones is one of the major problems in the veterinary industry in the country. Some tests have been designed entitled DIVA in order to distinguish the infected animals or poultry from the vaccinated ones. The produced kit has the ability to do so.

In this research, the peptide derived from protein NS1 immunodominant of influenza virus was used to diagnose flu in poultry. Due to its small size, the peptide cannot be used in Western blot test, because it diffuses when it is imposed to high voltage. By using nanotechnology, gold nanoparticles were used in this research to hold the peptide in the surface of the sheet of Western blot test. Gold nanoparticles bond with amine acid functional groups existing in the peptide, and they prevent the diffusion of the peptide during the Western blot test. As a result, the suspicious serums can be examined by using the antigen in the next steps, and the disease can be diagnosed.

Results of the research have been published in September 2012 in The Journal of Applied Poultry Research, vol. 21, issue 3. For more information about the details of the research, study the full article on pages 563-566 on the same journal.

Iran Nanotechnology Initiative Council | News | Nano Gold Kits Create New Hope for Diagnosis of Influenza Virus in Poultry

For doubters and seekers: Photoactive behavior of polyacrylonitrile fibers based on silver and zirconium co-doped titania nanocomposites: Synthesis, characterization, and comparative study of solid-phase photocatalytic self-cleaning - Moafi - 2012 - Journal of Applied Polymer

 

[Sam1980]

Iranians Find New Technique to Produce Porous Scaffold for Recovery of Bone Tissue

TEHRAN (INIC)- A new type of porous scaffold made of gelatin/nano hydroxyapatite was designed and produced by Iranian researchers to recover bone tissue.

The synthetic technique to produce the scaffold used in the research resulted in the obtaining of an appropriate porous structure to be used in bone tissue scaffold.

Dr. Mahmoud A’zami, Assistant Professor in tissue engineering from Faculty of Novel Medical Technologies of Tehran University of Medical Sciences, explained about the stages of the research, “In the first stage, an appropriate scaffold was designed and synthesized. In this part, a type of porous scaffold with a structure desirable to grow bone was produced by using solvent casting, freeze-drying, and layering. Then the synthesized scaffold was investigated by using non-biological tests and the common characterization methods."

"In order to study the biological properties of the synthesized scaffold, including its biocompatibility, and also to study its potential in growth and proliferation of bone cells, in vitro biological tests were carried out. In vivo tests were also carried out on the animal sample (rat) in calvaria zone in order to study the ability to recover the bone tissue where the scaffold has been placed.”

The synthetic technique to produce the scaffold used in the research resulted in the obtaining of an appropriate porous structure to be used in bone tissue scaffold.

According to A’zami, further in vivo investigations were carried out to evaluate the product on larger animal samples such as rabbit, and it must be tested on even larger animals or humans in the future. In case the product is confirmed in future tests, the product presented in this research will be able to cure tiny bones damaged due to diseases or crash.

A sum total of three articles have so far been published and one invention has so far been filed in the country from the results of the research. One of the articles has been published in June 2012 in Journal of Biomaterials Science, Polymer Edition.

Iran Nanotechnology Initiative Council | News | Iranians Find New Technique to Produce Porous Scaffold for Recovery of Bone Tissue

For doubters and seekers: A Porous Hydroxyapatite/Gelatin Nano... [J Biomater Sci Polym Ed. 2012] - PubMed - NCBI

 

[Aegis DDG]

post more please

 

[Shahnameh]

Dude, there is so many nano technology progress being made in Iran but unfortunate they are not making the most of them and using them in industry. Iran should develop a body which is responsible for making sure out science and technology progress are injected into industry.

 

[Sam1980]

Production of Fire-Retarded, Hydrophobic Woods Using Silver Nanoparticles

TEHRAN (INIC)- Iranian researchers from Shahid Rajaee Teacher Training University succeeded in the production of fire-retarded woods by using silver nanoparticles.

Materials used in the produced fire-retarded woods are pretty harmless to the environment. The researchers also produced woods resistant to water and air by using cycocel nanoparticles and taking advantage from their hydrophobic properties. This type of wood does not have the common problems of wooden compound products such as water adsorption or thickness elongation. This plan has applications in the furniture of houses and offices.

Dr. Hamid Reza Taqiyari, member of the Scientific Board of Wood Industries Department of Civil Engineering Faculty of Shahid Rajaee Teacher Training University, elaborated on the research, and said, “Saturated woods have higher thermal conduction. Therefore, in case they are exposed to high temperature or to direct flame, heat does not accumulate in one spot and the wood does not reach the burning point or, at least, reaches there later. As a result, the burning takes place with more difficulty and as we call it, the wood becomes fire-retarded.”

In another research, the same researcher used the hydrophobic properties of cycocel nanoparticles to solve the problem with water adsorption and elongation in wooden compound products (chipboard and MDF). Dr. Taqiyari explained, “In this research, we increased significantly the life of the products by using these nanoparticles through making MDF products hydrophobic. We help the conservation of our national forests and wood resources through this method.”

Negotiations have been made to transfer the license of the technology to Universiti Putra Malaysia (UPM) to be used in MDF manufacturing companies in this country.

Results of the research have been published in September 2012 in Wood Science and Technology, vol. 46, issue 5. For more information about the details of the research, study the full article on pages 939-952 on the same journal.

Iran Nanotechnology Initiative Council | News | Production of Fire-Retarded, Hydrophobic Woods Using Silver Nanoparticles

For doubters and seekers: Fire-retarding properties of nano-silver in solid woods - Springer



----------------------------------------------------------------------------------------------------------------



3-Dimensional Polymers Used to Adsorb Toxic Ions in Industrial Wastewaters


TEHRAN (INIC)- Three-dimensional polymers used to adsorb toxic heavy metals were synthesized by the Iranian researchers from Urumiya University.

These polymers have been modified from poly(styrene-alternative-maleic acid), and they have highly good capacity to eliminate the abovementioned metals from aqueous solutions.

Industrial wastewater polluted by toxic chemicals is one of the concerns for the industrial cities. Due to the wide application of metallic compounds as catalysts or as a semi-conductor in electronic devices, more water reservoirs are polluted with these toxic metallic compounds. Numerous methods have so far been suggested to remove these toxic materials from water reservoirs. Methods to remove toxic ions require many materials and very high energy while they are not able to remove all the ions. Therefore, adsorption methods are very important among other methods due to their simplicity and high removal percentage.

According to Najafi Moqaddam, one of the researchers of the plan, the percentage of cross-linking agent and ultrasonic waves in addition to mechanical stirring reduce the size of the produced polymeric particles to obtain better properties from the modified polymer. The research, that has lead to the production of functionalized three-dimensional resins with the ability to remove heavy metals from aqueous media, had a completely quantitative approach in the field of the chosen metals. Complementary studies showed a high kinetics of adsorption of the resin in the adsorption of heavy metals.

Results obtained from this research can be used in the purification of water and industrial wastewater, and also in Fisheries Organization.

Results of the research have been published in Polymer Advanced Technology, vol. 24, issue 1, 2012. For more information about the details of the research, study the full article on pages 34-41 on the same journal.


http://irannano.org/nano/index.php?ctrl=news&actn=news_view&id=44360&lang=2

For doubters and seekers: http://onlinelibrary.wiley.com/doi/10.1002/pat.3046/abstract