聚乙烯亞胺 Polyethyleneimine;PEI;Epomine
- 公司名稱 上海起發(fā)實(shí)驗(yàn)試劑有限公司
- 品牌
- 型號(hào)
- 產(chǎn)地 國(guó)外
- 廠商性質(zhì) 代理商
- 更新時(shí)間 2016/12/7 5:58:55
- 訪問次數(shù) 2844
聯(lián)系方式:楊經(jīng)理15921799099 查看聯(lián)系方式
聯(lián)系我們時(shí)請(qǐng)說明是化工儀器網(wǎng)上看到的信息,,謝謝!
Reaserch Diets, Crystal Chem, OMICRON, Synaptic Systems, Trilink, Cygnus, Neuroprobe, Polysciences , QuickZyme ,Leinco
將外源基因?qū)胝婧思?xì)胞是分子生物學(xué)研究中的一項(xiàng)重要技術(shù)。轉(zhuǎn)基因載體主要分為病毒載體系統(tǒng)和非病毒載體系統(tǒng),。病毒載體系統(tǒng)轉(zhuǎn)染效率高,是體內(nèi)基因治療的主要工具,但安全性存在隱患,且有免疫原性,體內(nèi)不能反復(fù)應(yīng)用,制備較復(fù)雜,而且所能裝載的外源DNA大小有限,使其應(yīng)用受到很大限制,。非病毒載體是病毒載體的重要補(bǔ)充途徑,一般認(rèn)為安全性高,載體一般無免疫原性,而且是基于質(zhì)粒的轉(zhuǎn)染,易于組裝[1-2]。目前已有的非病毒型載體介導(dǎo)基因轉(zhuǎn)染的方法有裸DNA注射,、磷酸鈣介導(dǎo),、電轉(zhuǎn)移法、陽離子脂質(zhì)體及陽離子聚合物介導(dǎo)等,。1995年,Boussif*報(bào)道了聚乙烯亞胺(polyethylenimine,PEI)可作為非病毒載體,其后,聚乙烯亞胺成為陽離子多聚物研究zui快的領(lǐng)域,。為了研究PEI基因轉(zhuǎn)染試劑的轉(zhuǎn)染效果,本文通過PEI轉(zhuǎn)染表達(dá)綠色熒光蛋白的pEGFP質(zhì)粒到293T細(xì)胞,以觀察其效果,并測(cè)定了多種因素對(duì)轉(zhuǎn)染效率的影響。
訂貨信息如下:
Polyethyleneimine, branched (50% soln. in water, MW 750,000) | 25448-500 | 8576 |
Polyethyleneimine, Linear (MW ~100,000) | 25414-2 | 1568 |
Polyethylenimine "Max", (Mw 160,000) - High Potency Linear PEI | 25439-2 | 2496 |
Polyethylenimine "Max"?, (Mw 4,000*) - High Potency Linear PEI (Equivalent to Mw ~2,500 in Free Base Form) Polyethylenimine | 24885-2 | 2496 |
Polyethylenimine "Max"?, (nominally Mw 40,000*) - High Potency Linear PEI (Equivalent to Mw 25,000 in Free Base Form) | 24765-2 | 2496 |
Polyethylenimine, branched (30% soln. in water, MW 10,000) | 17938-100 | 1920 |
Polyethylenimine, branched (30% soln. in water, MW 70,000) | 00618-100 | 1920 |
Polyethylenimine, branched (30% soln. in water, MW 70,000) | 00618-500 | 5696 |
Polyethylenimine, branched (MW 1,200) | 06088-100 | 1120 |
Polyethylenimine, branched (MW 1,200) | 06088-500 | 3728 |
Polyethylenimine, branched (MW 1,800) | 06089-100 | 1120 |
Polyethylenimine, branched (MW 1,800) | 06089-500 | 3728 |
Polyethylenimine, branched (MW 10,000) | 19850-100 | 1120 |
Polyethylenimine, branched (MW 10,000) | 19850-500 | 4704 |
Polyethylenimine, branched (MW 50,000-100,000) | 06090-100 | 1920 |
Polyethylenimine, branched (MW 50,000-100,000) | 06090-500 | 5696 |
Polyethylenimine, branched (MW 600) | 02371-100 | 1120 |
Polyethylenimine, branched (MW 600) | 02371-500 | 3728 |
Polyethylenimine, branched, permethylated, permethobromide | 21903-10 | 3392 |
Polyethylenimine, Linear (MW 2,500) | 24313-2 | 1568 |
Polyethylenimine, Linear (MW 25,000) | 23966-2 | 1568 |
Polyethylenimine, Linear (MW 250,000) | 24314-2 | 1568 |