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冬季豪禮,百奧創(chuàng)新PEI轉(zhuǎn)染試劑免費(fèi)送

時(shí)間:2022-12-9閱讀:92
分享:

  又迎來了一年的冬天,百奧創(chuàng)新特意推出冬季大禮,免費(fèi)試用PEI轉(zhuǎn)染試劑。現(xiàn)貨現(xiàn)發(fā),機(jī)會(huì)難得,產(chǎn)品打折,精彩從不打折!

線性轉(zhuǎn)染(1).png

那么,作為一款PEI轉(zhuǎn)染試劑,為何深受科研界人士的青睞呢?一起來學(xué)習(xí)一下吧!

陽離子聚合物--聚乙烯亞胺(polyethyleminine,PEI)轉(zhuǎn)染原理

PEI Prime是以一種陽離子高分子聚合物-聚乙烯亞胺(polyethyleniminePEI)為載體的線性轉(zhuǎn)染試劑。PEI是在pH中性溶液中具有正電荷密度的合成聚合物。帶正電的PEI與帶負(fù)電的DNA牢固結(jié)合,并賦予凈陽離子電荷,使DNA進(jìn)入細(xì)胞。PEI Prime是一種高性能轉(zhuǎn)染試劑,利用PEI的特性實(shí)現(xiàn)高產(chǎn)量,可重復(fù)性和可擴(kuò)展的瞬時(shí)基因表達(dá)。

不同分子量的PEI轉(zhuǎn)染效率不同

分子量也是決定其轉(zhuǎn)染效率的因素,高分子量的PEI具有高效的轉(zhuǎn)染效率,但因?yàn)槠浯罅空姾傻拇嬖谝约胺巧锝到庑裕梢詫?dǎo)致細(xì)胞膜去穩(wěn)定化,顯示出較大的細(xì)胞毒性,低分子量的PEI(低于2kDa)毒性低,但基因轉(zhuǎn)染效率也隨之降低。在HeLa、COS7、293T和CHO四種細(xì)胞上評(píng)價(jià)交聯(lián)PEI作為基因載體體外轉(zhuǎn)染pGL3的效率。發(fā)現(xiàn)二硫鍵含量和PEI分子量大小決定了轉(zhuǎn)染效率。

PEI轉(zhuǎn)染試劑的特點(diǎn)

轉(zhuǎn)染技術(shù)是將外源基因?qū)胝婧思?xì)胞,有助于機(jī)體表征遺傳、蛋白質(zhì)合成、細(xì)胞生長(zhǎng)和發(fā)育等功能的研究。理想的轉(zhuǎn)染試劑應(yīng)該是高效、安全、簡(jiǎn)單、省時(shí)和經(jīng)濟(jì)的。

PEI轉(zhuǎn)染試劑的轉(zhuǎn)染效率高,相對(duì)于細(xì)胞來講毒性低;蛋白表達(dá)量高;PEI至少能夠降低40%的轉(zhuǎn)染試劑總成本,在節(jié)約成本方面表現(xiàn)優(yōu)異;適用于貼壁細(xì)胞、懸浮細(xì)胞以及HEK293等真核細(xì)胞的轉(zhuǎn)染。

與市場(chǎng)上其他的PEI轉(zhuǎn)染效率的對(duì)比

線性.png

使用PEI PrimePEI:DNA濃度比31)或某品牌PEI,用CMV-SEAP質(zhì)粒轉(zhuǎn)染20ml HEK293懸浮細(xì)胞的培養(yǎng)物。 轉(zhuǎn)染后5天,使用磷酸酶報(bào)告染料和UV / Vis檢測(cè)SEAP表達(dá)水平。數(shù)據(jù)表示占某品牌PEISEAP表達(dá)水平的百分比。結(jié)果顯示我們的產(chǎn)品PEI Prime 的轉(zhuǎn)染效率比同類廠家高出40%。因此,PEI線性轉(zhuǎn)染試劑以實(shí)惠的價(jià)格與出眾的轉(zhuǎn)染效率更受廣大科研人員的喜愛。

百奧創(chuàng)新作為serochem品牌的代理,為大家謀一波冬季福利,致電即擁有1ml PEI轉(zhuǎn)染試劑免費(fèi)試用裝!活動(dòng)對(duì)象:所有終端!!


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