نتایج جستجو برای: purification

تعداد نتایج: 56444  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور 1385
محدثه جهاندیده بهار, غلامحسین ظهوری,

چکیده ندارد.

15 صفحه اول
ژورنال: فصلنامه علوم پزشکی دانشگاه آزاد اسلامی واحد پزشکی تهران 2020
Ahangari Cohan, Reza, Keramati, Malihe, Norouzian, Dariush, Roohvand, Farzin, Seyedinkhorasani, Masoud,

Background: Increase of protein purity is a serious challenge in the production of recombinant therapeutic proteins. For this purpose, several strategies have been employed to purify the target protein, among which the affinity chromatography-based purification methods and tagged proteins such as Ni-NTA are common and but costly. Therefore column-free purification techniques, such as using elas...

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Journal: :journal of sciences islamic republic of iran 0
e. omidinia

phenylalanine dehydrogenase (phedh; ec 1.4.1.20) is an important enzyme of amino acid dehydrogenases family that increasingly used as a valuable biocatalyst in neonatal screening kits and synthesis of l-phenylalanine. the goal of this literature was to find a suitable purification method for recombinant bacillus badius phedh by practical comparison between chromatographic and polyvinyl pyrrolid...

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Journal: :research in molecular medicine 0
touraj farazmandfar faculty of advanced medical science technologies, golestan university of medical sciences, gorgan, iran alireza rafiei molecular and cell biology research center, faculty of medicine, mazandaran university of medical sciences, sari, iran mohammad bagher hashemi-sotehoh molecular and cell biology research center, faculty of medicine, mazandaran university of medical sciences, sari, iran reza valadan molecular and cell biology research center, faculty of medicine, mazandaran university of medical sciences, sari, iran mohammad alavi sari agricultural sciences & natural resources university, sari, iran fatemeh moradian sari agricultural sciences & natural resources university, sari, iran

background: taq dna polymerase is a very important enzyme for molecular biological studies such as dna amplification and dna sequencing by the pcr. it is a standard enzyme that is used in 90% of molecular biology labs today. the aim of this study was to produce taq dna polymerase enzyme in e. coli by a reliable, practical, simple and low cost method.materials and methods: in this study, the taq...

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2006
My Hedhammar Amelie Eriksson Karlström Sophia Hober

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2017
Lluis M. Martinez

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پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390
مهدی رستمی, مهدی گوهر رخی,

during natural gas processing, water in natural gas may cause to hydrates formation in pipelines which may lead to serious damages to process equipments. given the problems raised by present of water in natural gas, glycol solvent uses to remove water.in contact of glycol with gas always an amount of btex and voc absorb along with water, which on glycol recovery process, these substances separa...

15 صفحه اول
Journal: :progress in biological sciences 2015
maryam parhamfar arastoo badoei-dalfard mouj khaleghi mehdi hassanshahian

microbial phytases were applied mainly to animal and human foodstuffs in order to improvemineral bioavailability and food processing. in addition, phytases have potentialbiotechnological application in various other fields, such as environmental protection,aquaculture and agriculture. bacillus sp. dm12, an isolate from a hot spring, produces phytase,which catalyzes the hydrolysis of phytic acid...

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Journal: :iranian journal of public health 0
t mohammadian m doosti m paknejad f siavoshi s massarrat

background: alkyl hydroperoxide reductase (ahpc) of helicobacter pylori is considered as a diagnostic antigen. there­fore, this antigen can be used to detect h. pylori infection by stool immunoassays such as elisa. the aim of this study was to simplify the ahpc protein purification procedures. methods: for whole cell protein extraction, the bacterial cells were ruptured by octly-β-d glucopyrano...

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Journal: :jundishapur journal of microbiology 0
zahra eslamirad department of parasitology, arak university of medical sciences, arak, ir iran; molecular and medicine research center, arak university of medical sciences, arak, ir iran; department of parasitology, arak university of medical sciences, arak, ir iran. tel: +98-8614173505, fax: +98-8614173521 fatemeh ghaffarifar depepartment of parasitology, faculty of medical sciences, tarbiat modares university, tehran, ir iran mana shojapour molecular and medicine research center, arak university of medical sciences, arak, ir iran behzad khansarinejad department of microbiology, arak university of medical sciences, arak, ir iran javid sadraei depepartment of parasitology, faculty of medical sciences, tarbiat modares university, tehran, ir iran

background toxoplasma gondii is an obligatory intracellular protozoan parasite, which infects human beings. since the current antigens used for diagnosis or vaccination are contaminated with non parasitic material in which the parasite is grown, it is tried to produce recombinant antigens to design vaccines against toxoplasmosis, or make diagnostic kits. choosing the type of antigen to produce ...

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نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید

function paginate(evt) { url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term pg=parseInt(evt.target.text) var data={ "year":filter_year, "term":term, "pgn":pg } filtered_res=post_and_fetch(data,url) window.scrollTo(0,0); } function update_search_meta(search_meta) { meta_place=document.getElementById("search_meta_data") term=search_meta.term active_pgn=search_meta.pgn num_res=search_meta.num_res num_pages=search_meta.num_pages year=search_meta.year meta_place.dataset.term=term meta_place.dataset.page=active_pgn meta_place.dataset.num_res=num_res meta_place.dataset.num_pages=num_pages meta_place.dataset.year=year document.getElementById("num_result_place").innerHTML=num_res if (year !== "unfilter"){ document.getElementById("year_filter_label").style="display:inline;" document.getElementById("year_filter_place").innerHTML=year }else { document.getElementById("year_filter_label").style="display:none;" document.getElementById("year_filter_place").innerHTML="" } } function update_pagination() { search_meta_place=document.getElementById('search_meta_data') num_pages=search_meta_place.dataset.num_pages; active_pgn=parseInt(search_meta_place.dataset.page); document.getElementById("pgn-ul").innerHTML=""; pgn_html=""; for (i = 1; i <= num_pages; i++){ if (i===active_pgn){ actv="active" }else {actv=""} pgn_li="
  • " +i+ "
    • "; pgn_html+=pgn_li; } document.getElementById("pgn-ul").innerHTML=pgn_html var pgn_links = document.querySelectorAll('.mypgn'); pgn_links.forEach(function(pgn_link) { pgn_link.addEventListener('click', paginate) }) } function post_and_fetch(data,url) { showLoading() xhr = new XMLHttpRequest(); xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/json; charset=UTF-8'); xhr.onreadystatechange = function() { if (xhr.readyState === 4 && xhr.status === 200) { var resp = xhr.responseText; resp_json=JSON.parse(resp) resp_place = document.getElementById("search_result_div") resp_place.innerHTML = resp_json['results'] search_meta = resp_json['meta'] update_search_meta(search_meta) update_pagination() hideLoading() } }; xhr.send(JSON.stringify(data)); } function unfilter() { url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":"unfilter", "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } function deactivate_all_bars(){ var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(bar) { bar.dataset.active = false bar.style = "stroke:#71a3c5;" }) } year_chart.on("created", function() { var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(check) { check.addEventListener('click', checkIndex); }) }); function checkIndex(event) { var yrchart = document.querySelectorAll('.ct-bar'); var year_bar = event.target if (year_bar.dataset.active == "true") { unfilter_res = unfilter() year_bar.dataset.active = false year_bar.style = "stroke:#1d2b3699;" } else { deactivate_all_bars() year_bar.dataset.active = true year_bar.style = "stroke:#e56f6f;" filter_year = chart_data['labels'][Array.from(yrchart).indexOf(year_bar)] url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":filter_year, "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } } function showLoading() { document.getElementById("loading").style.display = "block"; setTimeout(hideLoading, 10000); // 10 seconds } function hideLoading() { document.getElementById("loading").style.display = "none"; } -->