نتایج جستجو برای: gel method

تعداد نتایج: 1715631  

Journal: :Crystals 2021

Sol–gel chemistry is a versatile synthesis used to produce modern materials at near-room temperature [...]

Journal: :international journal of nano dimension 0
m. enhessari department of chemistry, naragh branch, islamic azad university, naragh , iran. s. nazari moqhadam department of chemistry, north tehran branch, islamic azad university, tehran, iran. m. kargar razi department of chemistry, north tehran branch, islamic azad university, tehran, iran s. ghezelbashi department of chemistry, north tehran branch, islamic azad university, tehran, iran. m. habibi tootkani department of chemistry, north tehran branch, islamic azad university, tehran, iran.

cotio3-clay nano-composites were synthesized via a conventional sol-gel method; the gel was calcinated at 500 - 800°c for 2 hours. the presence of rhombohedra phase of cotio3 in clay matrix was confirmed by xrd, ftir, sem. cobalt titanate-clay nano-composites were prepared with 5-20%(w/w) by sol-gel method. the spectra results were investigated at 20% (w/w) concentration .the optimum condition ...

Biji T. Kurien R. Hal Scofield Yaser Dorri,

We have modified one of the most useful methods of protein separation; namely, two dimensional gel electrophoresis (2-DE). This modified version of 2-DE is not only simpler and easier but also faster than all the currently available methods. In this method, isoelectric focusing is carried out in the first dimension using a vertical sodium dodecyl sulfate polyacrylamide gel electrop...

جعفرپور, مصطفی, سعیدی, سمانه, ناظمی, علی,

Background & Objectives: Today, major progress has been made in molecular experiments. The first step towards improving these experiments is the accurate extraction of nucleic acid. In this study, a protocol for DNA extraction was proposed in accordance with silica gel method. DNA purification, developed based on the silica-gel-membrane technology, is a simple method, which involves three s...

Journal: :journal of medical signals and sensors 0
seyed salman zakariaee mikaeil molazadeh abbas takavar alireza shirazi asghar mesbahi ahad zeinali

in radiation cancer treatments, the most of the side effects could be minimized using a proper dosimeter. gel dosimeter is the only three‑dimensional dosimeter and magnetic resonance imaging (mri) is the gold standard method for gel dosimeter readout. because of hard accessibility and high cost of sample reading by mri systems, some other alternative methods were developed. the optical computed...

Ahmad Mostaar, Mohammad Houshyari Zeinab Sattari

Introduction: Polymer gel dosimeters contain chemical materials sensitive to the radiation which are polymerized by the radiation as a function of absorbed dose. So information of spatial dose distribution can be extracted by imaging from irradiated gel. Among imaging techniques, computed tomography (CT) poses as an attractive method because of practical advantages such as acce...

Journal: :international journal of nano dimension 0
m. riazian department of engineering, tonekabon branch, islamic azad university, tonekabon, iran

we report on the synthesis, morphology, chemically and structurally of tio2-nio-sio2 nanostructure. the tio2-nio-sio2 nanostructure was synthesized by a method based on the sol-gel method, by the simultaneous gelation of all cations. the coatings were deposited on dried soda-lime glass slides by spin coating. composite powders and coating on glass have been characterized by xrd, sem, edax, and ...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

alumina is one of the most widely used ceramic materials as catalysts, catalyst supports and absorbents, and also wear resistant coating. this study focused on fabricating and characterizing of alumina ceramic nanoparticles fabricated using new and simple sol-gel method. aluminium oxide (al2o3) nanoparticles were synthesized by iron (iii) nitrate 9-hydrate as precursor. physicochemical properti...

Nasrin Moazami, Saeed Haghighi, Saeed-Reza Pakzad, Soheila Ajdary,

b-cyclodextrin glucosyl transferase (b-CGTase) hydrolyses starch to produce b-cyclodextrin by transglycosylation (cyclization) activity. The conventional method for detection of b-CGTase activity is based on detecting starch hydrolysis by iodine staining. This method reveals all amylolytic enzymes, but can not discriminate them. In the present study, we introduce a new method for specific detec...

Journal: :journal of nanostructures 2012
m. zahedifar m. mehrabi m. modarres s. harooni

beryllium  oxide  (beo)  nanopowder  was  synthesized  using  sol-gel method  and  the  effects  of  changes of  chemical  reagents  were investigated.  because  of  tissue  equivalence  and  other  outstanding thermoluminescence  (tl) properties of  the bulk material  in x and γ dosimetry, the applicability of this nanostructure in tl dosimetry was studied  following  irradiation to  the 137 c...

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